fix vue warning for undefined property during render

currentOs is not recognized as reactive property as it's set to "undefined". JavaScript does not accept "undefined" as valid value to initialize. A property needs to be initialized with a non-undefined value to become reactive in a class-based component. Otherwise Vue warns: Property or method "currentOs" is not defined on the instance but referenced during render.
fix typo and dead URL in Windows scripts (#70 )
2021-04-19 18:21:06 +02:00 · 2021-04-18 19:12:50 +02:00 · 2021-04-17 14:34:29 +01:00 · 2021-04-16 17:56:31 +02:00 · 2021-04-15 18:34:40 +02:00 · 2021-04-14 15:44:22 +01:00
107 changed files with 1157 additions and 568 deletions
--- a/.github/workflows/quality-checks.yaml
+++ b/.github/workflows/quality-checks.yaml
@@ -13,6 +13,7 @@ jobs:
          - npm run lint:md
          - npm run lint:md:relative-urls
          - npm run lint:md:consistency
+      fail-fast: false # So it continues with other commands if one fails
    steps:
      - name: Checkout
        uses: actions/checkout@v2
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -7,6 +7,7 @@ jobs:
    strategy:
      matrix:
        os: [macos, ubuntu, windows]
+      fail-fast: false # So it still runs on other OSes if one of them fails
    runs-on: ${{ matrix.os }}-latest
    steps:
      -
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog

+## 0.10.1 (2021-03-25)
+
+* refactor script compilation to make it easy to add new expressions #41 #53 | [646db90](https://github.com/undergroundwires/privacy.sexy/commit/646db9058541cebd0af437554de04fdc6bb63a6e)
+* restructure presentation layer | [f3c7413](https://github.com/undergroundwires/privacy.sexy/commit/f3c7413f529be4a00dba7b0ab23904b48ea13a35)
+* fix a test where "it" is not used inside "describe" | [1a5f920](https://github.com/undergroundwires/privacy.sexy/commit/1a5f92021f7423cd039f8f5326cd6f99b355c962)
+* bump dependencies to latest | [1f515e7](https://github.com/undergroundwires/privacy.sexy/commit/1f515e7be525291c960ccb71db05312db6da53f5)
+* fix throttle function not being able to run with argument(s) | [1935db1](https://github.com/undergroundwires/privacy.sexy/commit/1935db10192051401ab00ca2cd767955d0d3b866)
+* fix fs module hanging not allowing code to run | [5f527a0](https://github.com/undergroundwires/privacy.sexy/commit/5f527a00cf225d3e74b3f6577d6e2456e919de24)
+* refactor all modals to use same dialog component | [6f46cdb](https://github.com/undergroundwires/privacy.sexy/commit/6f46cdb4ed49a8941c6c0dde5c5e2a816c06daef)
+* fix safari cleanup scripts that are not working on modern versions | [05932c5](https://github.com/undergroundwires/privacy.sexy/commit/05932c5a36446d551c5bc811165e3295fbe15e3f)
+* refactor features to use shared functions #41 | [ac2249f](https://github.com/undergroundwires/privacy.sexy/commit/ac2249f25664827d8a6d2c7ebd659ccf126b0cde)
+* increase performance by polyfilling ResizeObserver only if required | [448e378](https://github.com/undergroundwires/privacy.sexy/commit/448e378dc4501f9de69af63634c87d0e5060bf52)
+
+[compare](https://github.com/undergroundwires/privacy.sexy/compare/0.10.0...0.10.1)
+
 ## 0.10.0 (2021-03-02)

 * allow functions to call other functions #53 | [7661575](https://github.com/undergroundwires/privacy.sexy/commit/7661575573c6d3e8f4bc28bfa7a124a764c72ef9)
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@

 - Online version at [https://privacy.sexy](https://privacy.sexy)
  - 💡 No need to run any compiled software on your computer.
- Alternatively download offline version for [Windows](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.0/privacy.sexy-Setup-0.10.0.exe), [macOS](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.0/privacy.sexy-0.10.0.dmg) or [Linux](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.0/privacy.sexy-0.10.0.AppImage).
+- Alternatively download offline version for [Windows](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.1/privacy.sexy-Setup-0.10.1.exe), [macOS](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.1/privacy.sexy-0.10.1.dmg) or [Linux](https://github.com/undergroundwires/privacy.sexy/releases/download/0.10.1/privacy.sexy-0.10.1.AppImage).
  - 💡 Single click to execute your script.
 - ❗ Come back regularly to apply latest version for stronger privacy and security.

@@ -53,8 +53,8 @@
  - Development: `npm run serve` to compile & hot-reload for development.
  - Production: `npm run build` to prepare files for distribution.
  - Or run using Docker:
-    1. Build: `docker build -t undergroundwires/privacy.sexy:0.10.0 .`
-    2. Run: `docker run -it -p 8080:80 --rm --name privacy.sexy-0.10.0 undergroundwires/privacy.sexy:0.10.0`
+    1. Build: `docker build -t undergroundwires/privacy.sexy:0.10.1 .`
+    2. Run: `docker run -it -p 8080:80 --rm --name privacy.sexy-0.10.1 undergroundwires/privacy.sexy:0.10.1`

 ## Architecture overview

--- a/docs/application.md
+++ b/docs/application.md
@@ -3,6 +3,14 @@
 - It's mainly responsible for
  - creating and event based [application state](#application-state)
  - [parsing](#parsing) and [compiling](#compiling) [application data](#application-data)
+- Consumed by [presentation layer](./presentation.md)
+
+## Structure
+
+- [`/src/` **`application/`**](./../src/application/): Contains all application related code.
+  - [**`collections/`**](./../src/application/collections/): Holds [collection files](./collection-files.md)
+  - [**`Common/`**](./../src/application/Common/): Contains common functionality that is shared in application layer.
+  - `..`: other classes are categorized using folders-by-feature structure

 ## Application state

--- a/docs/tests.md
+++ b/docs/tests.md
@@ -1,16 +1,20 @@
-# Unit tests
+# Tests
+
+- 💡 You can use path/module alias `@/tests` in import statements.
+
+## Unit tests

 - Unit tests are defined in [`./tests`](./../tests)
 - They follow same folder structure as [`./src`](./../src)

-## Naming
+### Naming

 - Each test suite first describe the system under test
  - E.g. tests for class `Application` is categorized under `Application`
 - Tests for specific methods are categorized under method name (if applicable)
  - E.g. test for `run()` is categorized under `run`

-## Act, arrange, assert
+### Act, arrange, assert

 - Tests use act, arrange and assert (AAA) pattern when applicable
 - **Arrange**
@@ -23,7 +27,7 @@
  - Should elicit some sort of response
  - Starts with comment line `// assert`

-## Stubs
+### Stubs

 - Stubs are defined in [`./tests/stubs`](./../tests/unit/stubs)
 - They implement dummy behavior to be functional
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
  "name": "privacy.sexy",
-  "version": "0.10.0",
+  "version": "0.10.1",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
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-      "dev": true,
-      "optional": true
+      "dev": true
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@@ -4109,8 +4108,7 @@
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-      "dev": true,
-      "optional": true
+      "dev": true
    },
    "camel-case": {
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@@ -5106,7 +5104,6 @@
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      "dev": true,
-      "optional": true,
      "requires": {
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@@ -5565,8 +5562,7 @@
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-      "dev": true,
-      "optional": true
+      "dev": true
    },
    "default-gateway": {
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@@ -7258,7 +7254,6 @@
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      "dev": true,
-      "optional": true,
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@@ -7278,7 +7273,6 @@
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          "dev": true,
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@@ -7288,7 +7282,6 @@
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            "emojis-list": "^3.0.0",
@@ -16514,7 +16485,6 @@
          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
          "dev": true,
-          "optional": true,
          "requires": {
            "has-flag": "^4.0.0"
          }
@@ -17397,11 +17367,10 @@
      "dev": true
    },
    "yaml": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.0.tgz",
-      "integrity": "sha512-yr2icI4glYaNG+KWONODapy2/jDdMSDnrONSjblABjD9B4Z5LgiircSt8m8sRZFNi08kG9Sm0uSHtEmP3zaEGg==",
-      "dev": true,
-      "optional": true
+      "version": "1.10.2",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.2.tgz",
+      "integrity": "sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==",
+      "dev": true
    },
    "yaml-lint": {
      "version": "1.2.4",
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "privacy.sexy",
-  "version": "0.10.0",
+  "version": "0.10.1",
  "private": true,
  "description": "Enforce privacy & security best-practices on Windows and macOS, because privacy is sexy 🍑🍆",
  "author": "undergroundwires",
--- a/src/application/Common/Array.ts
+++ b/src/application/Common/Array.ts
@@ -0,0 +1,21 @@
+// Compares to Array<T> objects for equality, ignoring order
+export function scrambledEqual<T>(array1: readonly T[], array2: readonly T[]) {
+    if (!array1) { throw new Error('undefined first array'); }
+    if (!array2) { throw new Error('undefined second array'); }
+    const sortedArray1 = sort(array1);
+    const sortedArray2 = sort(array2);
+    return sequenceEqual(sortedArray1, sortedArray2);
+    function sort(array: readonly T[]) {
+        return array.slice().sort();
+    }
+}
+
+// Compares to Array<T> objects for equality in same order
+export function sequenceEqual<T>(array1: readonly T[], array2: readonly T[]) {
+    if (!array1) { throw new Error('undefined first array'); }
+    if (!array2) { throw new Error('undefined second array'); }
+    if (array1.length !== array2.length) {
+        return false;
+    }
+    return array1.every((val, index) => val === array2[index]);
+}
--- a/src/application/Common/Enum.ts
+++ b/src/application/Common/Enum.ts
@@ -1,6 +1,6 @@
 // Because we cannot do "T extends enum" 😞 https://github.com/microsoft/TypeScript/issues/30611
-type EnumType = number | string;
-type EnumVariable<T extends EnumType, TEnumValue extends EnumType> = { [key in T]: TEnumValue };
+export type EnumType = number | string;
+export type EnumVariable<T extends EnumType, TEnumValue extends EnumType> = { [key in T]: TEnumValue };

 export interface IEnumParser<TEnum> {
    parseEnum(value: string, propertyName: string): TEnum;
@@ -41,3 +41,14 @@ export function getEnumValues<T extends EnumType, TEnumValue extends EnumType>(
    return getEnumNames(enumVariable)
        .map((level) => enumVariable[level]) as TEnumValue[];
 }
+
+export function assertInRange<T extends EnumType, TEnumValue extends EnumType>(
+    value: TEnumValue,
+    enumVariable: EnumVariable<T, TEnumValue>) {
+    if (value === undefined) {
+        throw new Error('undefined enum value');
+    }
+    if (!(value in enumVariable)) {
+        throw new RangeError(`enum value "${value}" is out of range`);
+    }
+}
--- a/src/application/Common/ScriptingLanguage/IScriptingLanguageFactory.ts
+++ b/src/application/Common/ScriptingLanguage/IScriptingLanguageFactory.ts
@@ -0,0 +1,5 @@
+import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
+
+export interface IScriptingLanguageFactory<T> {
+    create(language: ScriptingLanguage): T;
+}
--- a/src/application/Common/ScriptingLanguage/ScriptingLanguageFactory.ts
+++ b/src/application/Common/ScriptingLanguage/ScriptingLanguageFactory.ts
@@ -0,0 +1,31 @@
+import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
+import { IScriptingLanguageFactory } from './IScriptingLanguageFactory';
+import { assertInRange } from '@/application/Common/Enum';
+
+type Getter<T> = () => T;
+
+export abstract class ScriptingLanguageFactory<T> implements IScriptingLanguageFactory<T> {
+    private readonly getters = new Map<ScriptingLanguage, Getter<T>>();
+
+    public create(language: ScriptingLanguage): T {
+        assertInRange(language, ScriptingLanguage);
+        if (!this.getters.has(language)) {
+            throw new RangeError(`unknown language: "${ScriptingLanguage[language]}"`);
+        }
+        const getter = this.getters.get(language);
+        const instance = getter();
+        return instance;
+    }
+
+    protected registerGetter(language: ScriptingLanguage, getter: Getter<T>) {
+        assertInRange(language, ScriptingLanguage);
+        if (!getter)  {
+            throw new Error('undefined getter');
+        }
+        if (this.getters.has(language)) {
+            throw new Error(`${ScriptingLanguage[language]} is already registered`);
+        }
+        this.getters.set(language, getter);
+    }
+
+}
--- a/src/application/Context/ApplicationContext.ts
+++ b/src/application/Context/ApplicationContext.ts
@@ -5,6 +5,7 @@ import { IApplication } from '@/domain/IApplication';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
 import { EventSource } from '@/infrastructure/Events/EventSource';
+import { assertInRange } from '@/application/Common/Enum';

 type StateMachine = Map<OperatingSystem, ICategoryCollectionState>;

@@ -22,7 +23,7 @@ export class ApplicationContext implements IApplicationContext {
        public readonly app: IApplication,
        initialContext: OperatingSystem) {
        validateApp(app);
-        validateOs(initialContext);
+        assertInRange(initialContext, OperatingSystem);
        this.states = initializeStates(app);
        this.changeContext(initialContext);
    }
@@ -50,18 +51,6 @@ function validateApp(app: IApplication) {
    }
 }

-function validateOs(os: OperatingSystem) {
-    if (os === undefined) {
-        throw new Error('undefined os');
-    }
-    if (os === OperatingSystem.Unknown) {
-        throw new Error('unknown os');
-    }
-    if (!(os in OperatingSystem)) {
-        throw new Error(`os "${os}" is out of range`);
-    }
-}
-
 function initializeStates(app: IApplication): StateMachine {
    const machine = new Map<OperatingSystem, ICategoryCollectionState>();
    for (const collection of app.collections) {
--- a/src/application/Context/State/Code/Generation/CodeBuilderFactory.ts
+++ b/src/application/Context/State/Code/Generation/CodeBuilderFactory.ts
@@ -1,15 +1,14 @@
+import { ScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/ScriptingLanguageFactory';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { ICodeBuilder } from './ICodeBuilder';
-import { ICodeBuilderFactory } from './ICodeBuilderFactory';
 import { BatchBuilder } from './Languages/BatchBuilder';
 import { ShellBuilder } from './Languages/ShellBuilder';
+import { ICodeBuilderFactory } from './ICodeBuilderFactory';

-export class CodeBuilderFactory implements ICodeBuilderFactory {
-    public create(language: ScriptingLanguage): ICodeBuilder {
-        switch (language) {
-            case ScriptingLanguage.shellscript: return new ShellBuilder();
-            case ScriptingLanguage.batchfile:   return new BatchBuilder();
-            default: throw new RangeError(`unknown language: "${ScriptingLanguage[language]}"`);
-        }
+export class CodeBuilderFactory extends ScriptingLanguageFactory<ICodeBuilder> implements ICodeBuilderFactory {
+    constructor() {
+        super();
+        this.registerGetter(ScriptingLanguage.shellscript, () => new ShellBuilder());
+        this.registerGetter(ScriptingLanguage.batchfile, () => new BatchBuilder());
    }
 }
--- a/src/application/Context/State/Code/Generation/ICodeBuilderFactory.ts
+++ b/src/application/Context/State/Code/Generation/ICodeBuilderFactory.ts
@@ -1,6 +1,5 @@
-import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { ICodeBuilder } from './ICodeBuilder';
+import { IScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/IScriptingLanguageFactory';

-export interface ICodeBuilderFactory {
-    create(language: ScriptingLanguage): ICodeBuilder;
+export interface ICodeBuilderFactory extends IScriptingLanguageFactory<ICodeBuilder> {
 }
--- a/src/application/Context/State/Selection/IUserSelection.ts
+++ b/src/application/Context/State/Selection/IUserSelection.ts
@@ -6,7 +6,6 @@ import { IEventSource } from '@/infrastructure/Events/IEventSource';
 export interface IUserSelection {
    readonly changed: IEventSource<ReadonlyArray<SelectedScript>>;
    readonly selectedScripts: ReadonlyArray<SelectedScript>;
-    readonly totalSelected: number;
    areAllSelected(category: ICategory): boolean;
    isAnySelected(category: ICategory): boolean;
    removeAllInCategory(categoryId: number): void;
--- a/src/application/Context/State/Selection/UserSelection.ts
+++ b/src/application/Context/State/Selection/UserSelection.ts
@@ -101,10 +101,6 @@ export class UserSelection implements IUserSelection {
        return this.scripts.getItems();
    }

-    public get totalSelected(): number {
-        return this.scripts.getItems().length;
-    }
-
    public selectAll(): void {
        for (const script of this.collection.getAllScripts()) {
            if (!this.scripts.exists(script.id)) {
--- a/src/application/Environment/BrowserOs/BrowserOsDetector.ts
+++ b/src/application/Environment/BrowserOs/BrowserOsDetector.ts
@@ -4,17 +4,17 @@ import { IBrowserOsDetector } from './IBrowserOsDetector';

 export class BrowserOsDetector implements IBrowserOsDetector {
    private readonly detectors = BrowserDetectors;
-    public detect(userAgent: string): OperatingSystem {
+    public detect(userAgent: string): OperatingSystem | undefined {
        if (!userAgent) {
-            return OperatingSystem.Unknown;
+            return undefined;
        }
        for (const detector of this.detectors) {
            const os = detector.detect(userAgent);
-            if (os !== OperatingSystem.Unknown) {
+            if (os !== undefined) {
                return os;
            }
        }
-        return OperatingSystem.Unknown;
+        return undefined;
    }
 }

--- a/src/application/Environment/BrowserOs/DetectorBuilder.ts
+++ b/src/application/Environment/BrowserOs/DetectorBuilder.ts
@@ -29,10 +29,10 @@ export class DetectorBuilder {
            throw new Error('User agent is null or undefined');
        }
        if (this.existingPartsInUserAgent.some((part) => !userAgent.includes(part))) {
-            return OperatingSystem.Unknown;
+            return undefined;
        }
        if (this.notExistingPartsInUserAgent.some((part) => userAgent.includes(part))) {
-            return OperatingSystem.Unknown;
+            return undefined;
        }
        return this.os;
    }
--- a/src/application/Environment/BrowserOs/IBrowserOsDetector.ts
+++ b/src/application/Environment/BrowserOs/IBrowserOsDetector.ts
@@ -1,5 +1,5 @@
 import { OperatingSystem } from '@/domain/OperatingSystem';

 export interface IBrowserOsDetector {
-    detect(userAgent: string): OperatingSystem;
+    detect(userAgent: string): OperatingSystem | undefined;
 }
--- a/src/application/Environment/Environment.ts
+++ b/src/application/Environment/Environment.ts
@@ -44,7 +44,7 @@ function getProcessPlatform(variables: IEnvironmentVariables): string {
    return variables.process.platform;
 }

-function getDesktopOsType(processPlatform: string): OperatingSystem {
+function getDesktopOsType(processPlatform: string): OperatingSystem | undefined {
    // https://nodejs.org/api/process.html#process_process_platform
    if (processPlatform === 'darwin') {
        return OperatingSystem.macOS;
@@ -53,7 +53,7 @@ function getDesktopOsType(processPlatform: string): OperatingSystem {
    } else if (processPlatform === 'linux') {
        return OperatingSystem.Linux;
    }
-    return OperatingSystem.Unknown;
+    return undefined;
 }

 function isDesktop(variables: IEnvironmentVariables): boolean {
--- a/src/application/Parser/Script/CategoryCollectionParseContext.ts
+++ b/src/application/Parser/Script/CategoryCollectionParseContext.ts
@@ -1,6 +1,6 @@
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 import { ILanguageSyntax } from '@/domain/ScriptCode';
-import { FunctionData } from 'js-yaml-loader!*';
+import { FunctionData } from 'js-yaml-loader!@/*';
 import { IScriptCompiler } from './Compiler/IScriptCompiler';
 import { ScriptCompiler } from './Compiler/ScriptCompiler';
 import { ICategoryCollectionParseContext } from './ICategoryCollectionParseContext';
--- a/src/application/Parser/Script/Compiler/Function/FunctionCompiler.ts
+++ b/src/application/Parser/Script/Compiler/Function/FunctionCompiler.ts
@@ -1,4 +1,4 @@
-import { FunctionData, InstructionHolder } from 'js-yaml-loader!*';
+import { FunctionData, InstructionHolder } from 'js-yaml-loader!@/*';
 import { SharedFunction } from './SharedFunction';
 import { SharedFunctionCollection } from './SharedFunctionCollection';
 import { ISharedFunctionCollection } from './ISharedFunctionCollection';
--- a/src/application/Parser/Script/Compiler/Function/IFunctionCompiler.ts
+++ b/src/application/Parser/Script/Compiler/Function/IFunctionCompiler.ts
@@ -1,4 +1,4 @@
-import { FunctionData } from 'js-yaml-loader!*';
+import { FunctionData } from 'js-yaml-loader!@/*';
 import { ISharedFunctionCollection } from './ISharedFunctionCollection';

 export interface IFunctionCompiler {
--- a/src/application/Parser/Script/Compiler/Function/SharedFunction.ts
+++ b/src/application/Parser/Script/Compiler/Function/SharedFunction.ts
@@ -1,9 +1,10 @@
 import { ISharedFunction } from './ISharedFunction';

 export class SharedFunction implements ISharedFunction {
+    public readonly parameters: readonly string[];
    constructor(
        public readonly name: string,
-        public readonly parameters: readonly string[],
+        parameters: readonly string[],
        public readonly code: string,
        public readonly revertCode: string,
        ) {
--- a/src/application/Parser/Script/Compiler/FunctionCall/FunctionCallCompiler.ts
+++ b/src/application/Parser/Script/Compiler/FunctionCall/FunctionCallCompiler.ts
@@ -1,4 +1,4 @@
-import { FunctionCallData, FunctionCallParametersData, FunctionData, ScriptFunctionCallData } from 'js-yaml-loader!*';
+import { FunctionCallData, FunctionCallParametersData, FunctionData, ScriptFunctionCallData } from 'js-yaml-loader!@/*';
 import { ICompiledCode } from './ICompiledCode';
 import { ISharedFunctionCollection } from '../Function/ISharedFunctionCollection';
 import { IFunctionCallCompiler } from './IFunctionCallCompiler';
--- a/src/application/Parser/Script/Compiler/FunctionCall/IFunctionCallCompiler.ts
+++ b/src/application/Parser/Script/Compiler/FunctionCall/IFunctionCallCompiler.ts
@@ -1,4 +1,4 @@
-import { ScriptFunctionCallData } from 'js-yaml-loader!*';
+import { ScriptFunctionCallData } from 'js-yaml-loader!@/*';
 import { ICompiledCode } from './ICompiledCode';
 import { ISharedFunctionCollection } from '../Function/ISharedFunctionCollection';

--- a/src/application/Parser/Script/Syntax/ISyntaxFactory.ts
+++ b/src/application/Parser/Script/Syntax/ISyntaxFactory.ts
@@ -1,6 +1,5 @@
 import { ILanguageSyntax } from '@/domain/ScriptCode';
-import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
+import { IScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/IScriptingLanguageFactory';

-export interface ISyntaxFactory {
-    create(language: ScriptingLanguage): ILanguageSyntax;
+export interface ISyntaxFactory extends IScriptingLanguageFactory<ILanguageSyntax> {
 }
--- a/src/application/Parser/Script/Syntax/SyntaxFactory.ts
+++ b/src/application/Parser/Script/Syntax/SyntaxFactory.ts
@@ -1,15 +1,14 @@
 import { ILanguageSyntax } from '@/domain/ScriptCode';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
-import { ISyntaxFactory } from './ISyntaxFactory';
+import { ScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/ScriptingLanguageFactory';
 import { BatchFileSyntax } from './BatchFileSyntax';
 import { ShellScriptSyntax } from './ShellScriptSyntax';
+import { ISyntaxFactory } from './ISyntaxFactory';

-export class SyntaxFactory implements ISyntaxFactory {
-    public create(language: ScriptingLanguage): ILanguageSyntax {
-        switch (language) {
-            case ScriptingLanguage.batchfile:   return new BatchFileSyntax();
-            case ScriptingLanguage.shellscript: return new ShellScriptSyntax();
-            default:    throw new RangeError(`unknown language: "${ScriptingLanguage[language]}"`);
-        }
+export class SyntaxFactory extends ScriptingLanguageFactory<ILanguageSyntax> implements ISyntaxFactory {
+    constructor() {
+        super();
+        this.registerGetter(ScriptingLanguage.batchfile, () => new BatchFileSyntax());
+        this.registerGetter(ScriptingLanguage.shellscript, () => new ShellScriptSyntax());
    }
 }
--- a/src/application/collections/collection.yaml.d.ts
+++ b/src/application/collections/collection.yaml.d.ts
@@ -1,4 +1,4 @@
-declare module 'js-yaml-loader!*' {
+declare module 'js-yaml-loader!@/*' {
    export interface CollectionData {
        readonly os: string;
        readonly scripting: ScriptingDefinitionData;
--- a/src/application/collections/windows.yaml
+++ b/src/application/collections/windows.yaml
@@ -1248,25 +1248,52 @@ actions:
                    -
                        name: Disable ad customization with Advertising ID
                        recommend: standard
+                        docs: https://docs.microsoft.com/en-us/windows/privacy/manage-connections-from-windows-operating-system-components-to-microsoft-services#181-general
                        code: |-
-                            reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo" /v "Enabled" /t REG_DWORD /d 0 /f 
-                            reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AdvertisingInfo" /v "DisabledByGroupPolicy" /t REG_DWORD /d 1 /f
+                            reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo" /v "Enabled" /t REG_DWORD /d "0" /f 
+                            reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AdvertisingInfo" /v "DisabledByGroupPolicy" /t REG_DWORD /d "1" /f
+                        revertCode: |-
+                            reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\AdvertisingInfo" /v "Enabled" /t REG_DWORD /d "1" /f 
+                            reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\AdvertisingInfo" /v "DisabledByGroupPolicy" /t REG_DWORD /d "0" /f
+                    -
+                        category: Disable cloud-based tips and ads
+                        children:
+                            -
+                                name: Disable Windows Tips
+                                recommend: standard
+                                docs: https://admx.help/?Category=Windows_10_2016&Policy=Microsoft.Policies.CloudContent::DisableSoftLanding
+                                code: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CloudContent" /v "DisableSoftLanding" /t REG_DWORD /d "1" /f
+                                revertCode: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CloudContent" /v "DisableSoftLanding" /t REG_DWORD /d "0" /f
+                            -
+                                name: Disable Windows Spotlight (random wallpaper on lock screen)
+                                recommend: standard
+                                docs:
+                                    - https://docs.microsoft.com/en-us/windows/configuration/windows-spotlight
+                                    - https://docs.microsoft.com/en-us/windows/privacy/manage-connections-from-windows-operating-system-components-to-microsoft-services#25-windows-spotlight
+                                code: reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsSpotlightFeatures" /t "REG_DWORD" /d "1" /f
+                                revertCode: reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsSpotlightFeatures" /t "REG_DWORD" /d "0" /f
+                            -
+                                name: Disable Microsoft consumer experiences
+                                recommend: standard
+                                docs:
+                                    - https://www.stigviewer.com/stig/windows_10/2018-04-06/finding/V-71771
+                                    - https://admx.help/?Category=Windows_10_2016&Policy=Microsoft.Policies.CloudContent::DisableWindowsConsumerFeatures
+                                    - https://docs.microsoft.com/en-us/windows/privacy/manage-connections-from-windows-operating-system-components-to-microsoft-services#1816-feedback--diagnostics
+                                code: reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsConsumerFeatures" /t "REG_DWORD" /d "1" /f
+                                revertCode: reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsConsumerFeatures" /t "REG_DWORD" /d "0" /f
                    -
-                        name: Disable targeted tips
-                        recommend: standard
-                        code: |-
-                            reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\CloudContent" /v "DisableSoftLanding" /t REG_DWORD /d 1 /f
-                            reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsSpotlightFeatures" /t "REG_DWORD" /d "1" /f
-                            reg add "HKLM\Software\Policies\Microsoft\Windows\CloudContent" /v "DisableWindowsConsumerFeatures" /t "REG_DWORD" /d "1" /f
-                    - 
                        name: Turn Off Suggested Content in Settings app
                        recommend: standard
                        docs: https://www.tenforums.com/tutorials/100541-turn-off-suggested-content-settings-app-windows-10-a.html
                        code: |-
-                            reg add HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager /v "SubscribedContent-338393Enabled" /d "0" /t REG_DWORD /f
-                            reg add HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager /v "SubscribedContent-353694Enabled" /d "0" /t REG_DWORD /f
-                            reg add HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager /v "SubscribedContent-353696Enabled" /d "0" /t REG_DWORD /f
-            -                
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-338393Enabled" /d "0" /t REG_DWORD /f
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-353694Enabled" /d "0" /t REG_DWORD /f
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-353696Enabled" /d "0" /t REG_DWORD /f
+                        revertCode: |-
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-338393Enabled" /d "1" /t REG_DWORD /f
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-353694Enabled" /d "1" /t REG_DWORD /f
+                            reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager" /v "SubscribedContent-353696Enabled" /d "1" /t REG_DWORD /f
+            -
                category: Disable biometrics (breaks fingerprinting/facial login)
                children:
                    -
@@ -1788,7 +1815,7 @@ actions:
                                category: Chromium Edge settings
                                children:
                                    -
-                                        name: Disable Edge usage and crash-related data reporting # Obselete since Microsoft Edge version 89
+                                        name: Disable Edge usage and crash-related data reporting (shows "Your browser is managed") # Obselete since Microsoft Edge version 89
                                        recommend: standard
                                        docs:
                                            - https://admx.help/?Category=EdgeChromium&Policy=Microsoft.Policies.Edge::MetricsReportingEnabled
@@ -1796,7 +1823,7 @@ actions:
                                        code: reg add "HKLM\SOFTWARE\Policies\Microsoft\Edge" /v "MetricsReportingEnabled" /t REG_DWORD /d 0 /f
                                        revertCode: reg delete "HKLM\SOFTWARE\Policies\Microsoft\Edge" /v "MetricsReportingEnabled" /f  
                                    -
-                                        name: Disable sending site information # Obselete since Microsoft Edge version 89
+                                        name: Disable sending site information (shows "Your browser is managed") # Obselete since Microsoft Edge version 89
                                        recommend: standard
                                        docs: 
                                            - https://admx.help/?Category=EdgeChromium&Policy=Microsoft.Policies.Edge::SendSiteInfoToImproveServices
@@ -1894,7 +1921,7 @@ actions:
                                category: Chrome cleanup
                                children:
                                    - 
-                                        name: Do not share scanned software data to Google
+                                        name: Do not share scanned software data to Google (shows "Your browser is managed")
                                        recommend: standard
                                        docs: 
                                            - https://www.chromium.org/administrators/policy-list-3#ChromeCleanupReportingEnabled
@@ -1902,7 +1929,7 @@ actions:
                                        code: reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "ChromeCleanupReportingEnabled" /t REG_DWORD /d 0 /f
                                        revertCode: reg delete "HKLM\SOFTWARE\Policies\Google\Chrome" /v "ChromeCleanupReportingEnabled" /f
                                    - 
-                                        name: Prevent Chrome from scanning the system for cleanup
+                                        name: Prevent Chrome from scanning the system for cleanup (shows "Your browser is managed")
                                        recommend: standard
                                        docs: 
                                            - https://www.chromium.org/administrators/policy-list-3#ChromeCleanupEnabled
@@ -1910,7 +1937,7 @@ actions:
                                        code: reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "ChromeCleanupEnabled" /t REG_DWORD /d 0 /f
                                        revertCode: reg delete "HKLM\SOFTWARE\Policies\Google\Chrome" /v "ChromeCleanupEnabled" /f
                            -
-                                name: Disable Chrome metrics reporting
+                                name: Disable Chrome metrics reporting (shows "Your browser is managed")
                                recommend: standard
                                docs: https://www.stigviewer.com/stig/google_chrome_v23_windows/2013-01-11/finding/V-35780
                                code: reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "MetricsReportingEnabled" /t REG_DWORD /d 0 /f
@@ -2009,7 +2036,7 @@ actions:
                            reg add "HKCU\Software\Policies\Microsoft\WindowsMediaPlayer" /v "PreventRadioPresetsRetrieval" /t REG_DWORD /d 1 /f
                            reg add "HKLM\SOFTWARE\Policies\Microsoft\WMDRM" /v "DisableOnline" /t REG_DWORD /d 1 /f
                    -
-                        name: Disable dows Media Player Network Sharing Service
+                        name: Disable Windows Media Player Network Sharing Service
                        recommend: standard
                        code: sc stop "WMPNetworkSvc" & sc config "WMPNetworkSvc" start=disabled
            -
@@ -2986,7 +3013,7 @@ actions:
                                        packageName: Microsoft.Messaging
                            -
                                name: Mixed Reality Portal app
-                                docs: https://www.microsoft.com/en-us/p/mixed-reality-portal
+                                docs: https://www.microsoft.com/en-us/p/mixed-reality-portal/9ng1h8b3zc7m
                                call:
                                    function: UninstallStoreApp
                                    parameters:
@@ -3004,7 +3031,7 @@ actions:
                                                packageName: Microsoft.MicrosoftOfficeHub
                                    -
                                        name: OneNote app
-                                        docs: https://www.microsoft.com/en-us/p/onenote-for-windows-10
+                                        docs: https://www.microsoft.com/en-us/p/onenote-for-windows-10/9wzdncrfhvjl
                                        call:
                                            function: UninstallStoreApp
                                            parameters:
@@ -3511,7 +3538,7 @@ actions:
                                            parameters:
                                                packageName: Microsoft.Windows.CapturePicker
                                    -
-                                        name: Cloud Experience Host app # Allows to connect to corporate domains or Microsoft cloud based services
+                                        name: Cloud Experience Host app (breaks Microsoft cloud/corporate sign in) # Allows to connect to corporate domains or Microsoft cloud based services
                                        recommend: strict
                                        call:
                                            function: UninstallSystemApp
--- a/src/domain/CategoryCollection.ts
+++ b/src/domain/CategoryCollection.ts
@@ -1,4 +1,4 @@
-import { getEnumNames, getEnumValues } from '@/application/Common/Enum';
+import { getEnumNames, getEnumValues, assertInRange } from '@/application/Common/Enum';
 import { IEntity } from '../infrastructure/Entity/IEntity';
 import { ICategory } from './ICategory';
 import { IScript } from './IScript';
@@ -21,7 +21,7 @@ export class CategoryCollection implements ICategoryCollection {
            throw new Error('undefined scripting definition');
        }
        this.queryable = makeQueryable(actions);
-        ensureValidOs(os);
+        assertInRange(os, OperatingSystem);
        ensureValid(this.queryable);
        ensureNoDuplicates(this.queryable.allCategories);
        ensureNoDuplicates(this.queryable.allScripts);
@@ -54,18 +54,6 @@ export class CategoryCollection implements ICategoryCollection {
    }
 }

-function ensureValidOs(os: OperatingSystem): void {
-    if (os === undefined) {
-        throw new Error('undefined os');
-    }
-    if (os === OperatingSystem.Unknown) {
-        throw new Error('unknown os');
-    }
-    if (!(os in OperatingSystem)) {
-        throw new Error(`os "${os}" is out of range`);
-    }
-}
-
 function ensureNoDuplicates<TKey>(entities: ReadonlyArray<IEntity<TKey>>) {
    const totalOccurrencesById = new Map<TKey, number>();
    for (const entity of entities) {
--- a/src/domain/OperatingSystem.ts
+++ b/src/domain/OperatingSystem.ts
@@ -10,5 +10,4 @@ export enum OperatingSystem {
    Android,
    iOS,
    WindowsPhone,
-    Unknown,
 }
--- a/src/domain/ProjectInformation.ts
+++ b/src/domain/ProjectInformation.ts
@@ -1,5 +1,6 @@
 import { IProjectInformation } from './IProjectInformation';
 import { OperatingSystem } from './OperatingSystem';
+import { assertInRange } from '@/application/Common/Enum';

 export class ProjectInformation implements IProjectInformation {
    public readonly repositoryWebUrl: string;
@@ -42,6 +43,7 @@ function getWebUrl(gitUrl: string) {
 }

 function getFileName(os: OperatingSystem, version: string): string {
+    assertInRange(os, OperatingSystem);
    switch (os) {
        case OperatingSystem.Linux:
            return `privacy.sexy-${version}.AppImage`;
@@ -50,6 +52,6 @@ function getFileName(os: OperatingSystem, version: string): string {
        case OperatingSystem.Windows:
            return `privacy.sexy-Setup-${version}.exe`;
        default:
-            throw new Error(`Unsupported os: ${OperatingSystem[os]}`);
+            throw new RangeError(`Unsupported os: ${OperatingSystem[os]}`);
    }
 }
--- a/src/domain/ScriptCode.ts
+++ b/src/domain/ScriptCode.ts
@@ -7,16 +7,7 @@ export class ScriptCode implements IScriptCode {
        syntax: ILanguageSyntax) {
        if (!syntax) { throw new Error('undefined syntax'); }
        validateCode(execute, syntax);
-        if (revert) {
-            try {
-                validateCode(revert, syntax);
-                if (execute === revert) {
-                    throw new Error(`Code itself and its reverting code cannot be the same`);
-                }
-            } catch (err) {
-                throw Error(`(revert): ${err.message}`);
-            }
-        }
+        validateRevertCode(revert, execute, syntax);
    }
 }

@@ -25,6 +16,20 @@ export interface ILanguageSyntax {
    readonly commonCodeParts: string[];
 }

+function validateRevertCode(revertCode: string, execute: string, syntax: ILanguageSyntax) {
+    if (!revertCode) {
+        return;
+    }
+    try {
+        validateCode(revertCode, syntax);
+        if (execute === revertCode) {
+            throw new Error(`Code itself and its reverting code cannot be the same`);
+        }
+    } catch (err) {
+        throw Error(`(revert): ${err.message}`);
+    }
+}
+
 function validateCode(code: string, syntax: ILanguageSyntax): void {
    if (!code || code.length === 0) {
        throw new Error(`code is empty or undefined`);
--- a/src/infrastructure/CodeRunner.ts
+++ b/src/infrastructure/CodeRunner.ts
@@ -5,16 +5,20 @@ import fs from 'fs';
 import child_process from 'child_process';
 import { OperatingSystem } from '@/domain/OperatingSystem';

-export async function runCodeAsync(
-    code: string, folderName: string, fileExtension: string,
-    node = getNodeJs(), environment = Environment.CurrentEnvironment): Promise<void> {
-    const dir = node.path.join(node.os.tmpdir(), folderName);
-    await node.fs.promises.mkdir(dir, {recursive: true});
-    const filePath = node.path.join(dir, `run.${fileExtension}`);
-    await node.fs.promises.writeFile(filePath, code);
-    await node.fs.promises.chmod(filePath, '755');
-    const command = getExecuteCommand(filePath, environment);
-    node.child_process.exec(command);
+export class CodeRunner {
+    constructor(
+        private readonly node = getNodeJs(),
+        private readonly environment = Environment.CurrentEnvironment) {
+    }
+    public async runCodeAsync(code: string, folderName: string, fileExtension: string): Promise<void> {
+        const dir = this.node.path.join(this.node.os.tmpdir(), folderName);
+        await this.node.fs.promises.mkdir(dir, {recursive: true});
+        const filePath = this.node.path.join(dir, `run.${fileExtension}`);
+        await this.node.fs.promises.writeFile(filePath, code);
+        await this.node.fs.promises.chmod(filePath, '755');
+        const command = getExecuteCommand(filePath, this.environment);
+        this.node.child_process.exec(command);
+    }
 }

 function getExecuteCommand(scriptPath: string, environment: Environment): string {
--- a/src/presentation/background.ts
+++ b/src/presentation/background.ts
@@ -4,7 +4,7 @@
 // This script is running through entire life of the application.
 // It doesn't have any windows which you can see on screen, opens the main window from here.

-import { app, protocol, BrowserWindow, shell } from 'electron';
+import { app, protocol, BrowserWindow, shell, screen } from 'electron';
 import { createProtocol } from 'vue-cli-plugin-electron-builder/lib';
 import installExtension, { VUEJS_DEVTOOLS } from 'electron-devtools-installer';
 import path from 'path';
@@ -34,9 +34,10 @@ if (!process.env.IS_TEST) {

 function createWindow() {
  // Create the browser window.
+  const size = getWindowSize(1350, 955);
  win = new BrowserWindow({
-    width: 1350,
-    height: 955,
+    width: size.width,
+    height: size.height,
    webPreferences: {
      contextIsolation: false, // To reach node https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/1285
      // Use pluginOptions.nodeIntegration, leave this alone
@@ -143,3 +144,12 @@ function loadUrlWithNodeWorkaround(window: BrowserWindow, url: string) {
    window.loadURL(url);
  }, 10);
 }
+
+function getWindowSize(idealWidth: number, idealHeight: number) {
+  let { width, height } = screen.getPrimaryDisplay().workAreaSize;
+  // To ensure not creating a screen bigger than current screen size
+  // Not using "enableLargerThanScreen" as it's macOS only (see https://www.electronjs.org/docs/api/browser-window)
+  width = Math.min(width, idealWidth);
+  height = Math.min(height, idealHeight);
+  return { width, height };
+}
--- a/src/presentation/components/Code/CodeButtons/TheCodeButtons.vue
+++ b/src/presentation/components/Code/CodeButtons/TheCodeButtons.vue
@@ -37,7 +37,7 @@ import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { IApplicationCode } from '@/application/Context/State/Code/IApplicationCode';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 import { OperatingSystem } from '@/domain/OperatingSystem';
-import { runCodeAsync } from '@/infrastructure/CodeRunner';
+import { CodeRunner } from '@/infrastructure/CodeRunner';
 import { IApplicationContext } from '@/application/Context/IApplicationContext';

@Component({
@@ -116,11 +116,12 @@ function buildFileName(scripting: IScriptingDefinition) {
 }

 async function executeCodeAsync(context: IApplicationContext) {
-    await runCodeAsync(
-        /*code*/ context.state.code.current,
-        /*appName*/ context.app.info.name,
-        /*fileExtension*/ context.state.collection.scripting.fileExtension,
-      );
+  const runner = new CodeRunner();
+  await runner.runCodeAsync(
+    /*code*/ context.state.code.current,
+    /*appName*/ context.app.info.name,
+    /*fileExtension*/ context.state.collection.scripting.fileExtension,
+  );
 }

 </script>
--- a/src/presentation/components/Scripts/Menu/Selector/SelectionTypeHandler.ts
+++ b/src/presentation/components/Scripts/Menu/Selector/SelectionTypeHandler.ts
@@ -0,0 +1,86 @@
+import { IScript } from '@/domain/IScript';
+import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
+import { RecommendationLevel } from '@/domain/RecommendationLevel';
+import { scrambledEqual } from '@/application/Common/Array';
+import { ICategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
+
+export enum SelectionType {
+    Standard,
+    Strict,
+    All,
+    None,
+    Custom,
+}
+
+export class SelectionTypeHandler {
+    constructor(private readonly state: ICategoryCollectionState) {
+        if (!state) { throw new Error('undefined state'); }
+    }
+    public selectType(type: SelectionType) {
+        if (type === SelectionType.Custom) {
+            throw new Error('cannot select custom type');
+        }
+        const selector = selectors.get(type);
+        selector.select(this.state);
+    }
+    public getCurrentSelectionType(): SelectionType {
+        for (const [type, selector] of Array.from(selectors.entries())) {
+            if (selector.isSelected(this.state)) {
+                return type;
+            }
+        }
+        return SelectionType.Custom;
+    }
+}
+
+interface ISingleTypeHandler {
+    isSelected: (state: ICategoryCollectionState) => boolean;
+    select: (state: ICategoryCollectionState) => void;
+}
+
+const selectors = new Map<SelectionType, ISingleTypeHandler>([
+    [SelectionType.None, {
+        select: (state) =>
+            state.selection.deselectAll(),
+        isSelected: (state) =>
+            state.selection.selectedScripts.length === 0,
+    }],
+    [SelectionType.Standard, getRecommendationLevelSelector(RecommendationLevel.Standard)],
+    [SelectionType.Strict, getRecommendationLevelSelector(RecommendationLevel.Strict)],
+    [SelectionType.All, {
+        select: (state) =>
+            state.selection.selectAll(),
+        isSelected: (state) =>
+            state.selection.selectedScripts.length === state.collection.totalScripts,
+    }],
+]);
+
+function getRecommendationLevelSelector(level: RecommendationLevel): ISingleTypeHandler {
+    return {
+        select: (state) => selectOnly(level, state),
+        isSelected: (state) => hasAllSelectedLevelOf(level, state),
+    };
+}
+
+function hasAllSelectedLevelOf(level: RecommendationLevel, state: ICategoryCollectionState) {
+    const scripts = state.collection.getScriptsByLevel(level);
+    const selectedScripts = state.selection.selectedScripts;
+    return areAllSelected(scripts, selectedScripts);
+}
+
+function selectOnly(level: RecommendationLevel, state: ICategoryCollectionState) {
+    const scripts = state.collection.getScriptsByLevel(level);
+    state.selection.selectOnly(scripts);
+}
+
+function areAllSelected(
+    expectedScripts: ReadonlyArray<IScript>,
+    selection: ReadonlyArray<SelectedScript>): boolean {
+    selection = selection.filter((selected) => !selected.revert);
+    if (expectedScripts.length < selection.length) {
+        return false;
+    }
+    const selectedScriptIds = selection.map((script) => script.id);
+    const expectedScriptIds = expectedScripts.map((script) => script.id);
+    return scrambledEqual(selectedScriptIds, expectedScriptIds);
+}
--- a/src/presentation/components/Scripts/Menu/Selector/TheSelector.vue
+++ b/src/presentation/components/Scripts/Menu/Selector/TheSelector.vue
@@ -5,8 +5,8 @@
            <div class="part">
                <SelectableOption
                    label="None"
-                    :enabled="this.currentSelection == SelectionState.None"
-                    @click="selectAsync(SelectionState.None)"
+                    :enabled="this.currentSelection == SelectionType.None"
+                    @click="selectType(SelectionType.None)"
                    v-tooltip=" 'Deselect all selected scripts.<br/>' +
                                '💡 Good start to dive deeper into tweaks and select only what you want.'"
                    />
@@ -15,8 +15,8 @@
            <div class="part">
                <SelectableOption
                    label="Standard"
-                    :enabled="this.currentSelection == SelectionState.Standard"
-                    @click="selectAsync(SelectionState.Standard)"
+                    :enabled="this.currentSelection == SelectionType.Standard"
+                    @click="selectType(SelectionType.Standard)"
                    v-tooltip=" '🛡️ Balanced for privacy and functionality.<br/>' +
                                'OS and applications will function normally.<br/>' +
                                '💡 Recommended for everyone'"
@@ -26,8 +26,8 @@
            <div class="part">
                <SelectableOption
                    label="Strict"
-                    :enabled="this.currentSelection == SelectionState.Strict"
-                    @click="selectAsync(SelectionState.Strict)"
+                    :enabled="this.currentSelection == SelectionType.Strict"
+                    @click="selectType(SelectionType.Strict)"
                    v-tooltip=" '🚫 Stronger privacy, disables risky functions that may leak your data.<br/>' +
                                '⚠️ Double check to remove sripts where you would trade functionality for privacy<br/>' +
                                '💡 Recommended for daily users that prefers more privacy over non-essential functions'"
@@ -37,8 +37,8 @@
            <div class="part">
                    <SelectableOption
                        label="All"
-                        :enabled="this.currentSelection == SelectionState.All"
-                        @click="selectAsync(SelectionState.All)"
+                        :enabled="this.currentSelection == SelectionType.All"
+                        @click="selectType(SelectionType.All)"
                        v-tooltip=" '🔒 Strongest privacy, disabling any functionality that may leak your data.<br/>' +
                                    '🛑 Not designed for daily users, it will break important functionalities.<br/>' +
                                    '💡 Only recommended for extreme use-cases like crime labs where no leak is acceptable'"
@@ -52,112 +52,40 @@
 import { Component } from 'vue-property-decorator';
 import { StatefulVue } from '@/presentation/components/Shared/StatefulVue';
 import SelectableOption from './SelectableOption.vue';
-import { IScript } from '@/domain/IScript';
-import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
-import { RecommendationLevel } from '@/domain/RecommendationLevel';
 import { ICategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
+import { SelectionType, SelectionTypeHandler } from './SelectionTypeHandler';

-enum SelectionState {
-    Standard,
-    Strict,
-    All,
-    None,
-    Custom,
-}
@Component({
  components: {
    SelectableOption,
  },
 })
 export default class TheSelector extends StatefulVue {
-    public SelectionState = SelectionState;
-    public currentSelection = SelectionState.None;
+    public SelectionType = SelectionType;
+    public currentSelection = SelectionType.None;
+    private selectionTypeHandler: SelectionTypeHandler;

-    public async selectAsync(type: SelectionState): Promise<void> {
+    public async selectType(type: SelectionType) {
        if (this.currentSelection === type) {
            return;
        }
-        const context = await this.getCurrentContextAsync();
-        selectType(context.state, type);
+        this.selectionTypeHandler.selectType(type);
    }

    protected handleCollectionState(newState: ICategoryCollectionState, oldState: ICategoryCollectionState): void {
-        this.updateSelections(newState);
-        newState.selection.changed.on(() => this.updateSelections(newState));
+        this.selectionTypeHandler = new SelectionTypeHandler(newState);
+        this.updateSelections();
+        newState.selection.changed.on(() => this.updateSelections());
        if (oldState) {
-            oldState.selection.changed.on(() => this.updateSelections(oldState));
+            oldState.selection.changed.on(() => this.updateSelections());
        }
    }

-    private updateSelections(state: ICategoryCollectionState) {
-       this.currentSelection = getCurrentSelectionState(state);
+    private updateSelections() {
+       this.currentSelection = this.selectionTypeHandler.getCurrentSelectionType();
    }
 }

-interface ITypeSelector {
-    isSelected: (state: ICategoryCollectionState) => boolean;
-    select: (state: ICategoryCollectionState) => void;
-}
-
-const selectors = new Map<SelectionState, ITypeSelector>([
-    [SelectionState.None, {
-        select: (state) =>
-            state.selection.deselectAll(),
-        isSelected: (state) =>
-            state.selection.totalSelected === 0,
-    }],
-    [SelectionState.Standard, {
-        select: (state) =>
-            state.selection.selectOnly(
-                state.collection.getScriptsByLevel(RecommendationLevel.Standard)),
-        isSelected: (state) =>
-            hasAllSelectedLevelOf(RecommendationLevel.Standard, state),
-    }],
-    [SelectionState.Strict, {
-        select: (state) =>
-            state.selection.selectOnly(state.collection.getScriptsByLevel(RecommendationLevel.Strict)),
-        isSelected: (state) =>
-            hasAllSelectedLevelOf(RecommendationLevel.Strict, state),
-    }],
-    [SelectionState.All, {
-        select: (state) =>
-            state.selection.selectAll(),
-        isSelected: (state) =>
-            state.selection.totalSelected === state.collection.totalScripts,
-    }],
-]);
-
-function selectType(state: ICategoryCollectionState, type: SelectionState) {
-    const selector = selectors.get(type);
-    selector.select(state);
-}
-
-function getCurrentSelectionState(state: ICategoryCollectionState): SelectionState {
-    for (const [type, selector] of Array.from(selectors.entries())) {
-        if (selector.isSelected(state)) {
-            return type;
-        }
-    }
-    return SelectionState.Custom;
-}
-
-function hasAllSelectedLevelOf(level: RecommendationLevel, state: ICategoryCollectionState) {
-    const scripts = state.collection.getScriptsByLevel(level);
-    const selectedScripts = state.selection.selectedScripts;
-    return areAllSelected(scripts, selectedScripts);
-}
-
-function areAllSelected(
-    expectedScripts: ReadonlyArray<IScript>,
-    selection: ReadonlyArray<SelectedScript>): boolean {
-    selection = selection.filter((selected) => !selected.revert);
-    if (expectedScripts.length < selection.length) {
-        return false;
-    }
-    const selectedScriptIds = selection.map((script) => script.id).sort();
-    const expectedScriptIds = expectedScripts.map((script) => script.id).sort();
-    return selectedScriptIds.every((id, index) => id === expectedScriptIds[index]);
-}
 </script>

 <style scoped lang="scss">
--- a/src/presentation/components/Scripts/Menu/TheOsChanger.vue
+++ b/src/presentation/components/Scripts/Menu/TheOsChanger.vue
@@ -24,7 +24,7 @@ import { ApplicationFactory } from '@/application/ApplicationFactory';
@Component
 export default class TheOsChanger extends StatefulVue {
  public allOses: Array<{ name: string, os: OperatingSystem }> = [];
-  public currentOs: OperatingSystem = OperatingSystem.Unknown;
+  public currentOs?: OperatingSystem = null;

  public async created() {
    const app = await ApplicationFactory.Current.getAppAsync();
--- a/tests/unit/application/ApplicationFactory.spec.ts
+++ b/tests/unit/application/ApplicationFactory.spec.ts
@@ -1,7 +1,7 @@
 import 'mocha';
 import { expect } from 'chai';
 import { ApplicationFactory, ApplicationGetter } from '@/application/ApplicationFactory';
-import { ApplicationStub } from '../stubs/ApplicationStub';
+import { ApplicationStub } from '@tests/unit/stubs/ApplicationStub';

 describe('ApplicationFactory', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Common/Array.ComparerTestScenario.ts
+++ b/tests/unit/application/Common/Array.ComparerTestScenario.ts
@@ -0,0 +1,69 @@
+interface IComparerTestCase<T> {
+    readonly name: string;
+    readonly first: readonly T[];
+    readonly second: readonly T[];
+    readonly expected: boolean;
+}
+
+export class ComparerTestScenario {
+    private readonly testCases: Array<IComparerTestCase<number>> = [];
+
+    public addEmptyArrays(expectedResult: boolean) {
+        return this.addTestCase({
+            name: 'empty array',
+            first: [ ],
+            second: [ ],
+            expected: expectedResult,
+        }, true);
+    }
+    public addSameItemsWithSameOrder(expectedResult: boolean) {
+        return this.addTestCase({
+            name: 'same items with same order',
+            first: [ 1, 2, 3 ],
+            second: [ 1, 2, 3 ],
+            expected: expectedResult,
+        }, true);
+    }
+    public addSameItemsWithDifferentOrder(expectedResult: boolean) {
+        return this.addTestCase({
+            name: 'same items with different order',
+            first: [ 1, 2, 3 ],
+            second: [ 2, 3, 1 ],
+            expected: expectedResult,
+        }, true);
+    }
+    public addDifferentItemsWithSameLength(expectedResult: boolean) {
+        return this.addTestCase({
+            name: 'different items with same length',
+            first: [ 1, 2, 3 ],
+            second: [ 4, 5, 6 ],
+            expected: expectedResult,
+        }, true);
+    }
+    public addDifferentItemsWithDifferentLength(expectedResult: boolean) {
+        return this.addTestCase({
+            name: 'different items with different length',
+            first: [ 1, 2 ],
+            second: [ 3, 4, 5 ],
+            expected: expectedResult,
+        }, true);
+    }
+    public forEachCase(handler: (testCase: IComparerTestCase<number>) => void) {
+        for (const testCase of this.testCases) {
+            handler(testCase);
+        }
+    }
+
+    private addTestCase(testCase: IComparerTestCase<number>, addReversed: boolean) {
+        this.testCases.push(testCase);
+        if (addReversed) {
+            this.testCases.push({
+                name: `${testCase.name} (reversed)`,
+                first: testCase.second,
+                second: testCase.first,
+                expected: testCase.expected,
+            });
+        }
+        return this;
+    }
+}
--- a/tests/unit/application/Common/Array.spec.ts
+++ b/tests/unit/application/Common/Array.spec.ts
@@ -0,0 +1,68 @@
+import 'mocha';
+import { expect } from 'chai';
+import { scrambledEqual } from '@/application/Common/Array';
+import { sequenceEqual } from '@/application/Common/Array';
+import { ComparerTestScenario } from './Array.ComparerTestScenario';
+
+describe('Array', () => {
+    describe('scrambledEqual', () => {
+        describe('throws if arguments are undefined', () => {
+            it('first argument is undefined', () => {
+                const expectedError = 'undefined first array';
+                const act = () => scrambledEqual(undefined, []);
+                expect(act).to.throw(expectedError);
+            });
+            it('second arguments is undefined', () => {
+                const expectedError = 'undefined second array';
+                const act = () => scrambledEqual([], undefined);
+                expect(act).to.throw(expectedError);
+            });
+        });
+        describe('returns as expected', () => {
+            // arrange
+            const scenario = new ComparerTestScenario()
+                .addSameItemsWithSameOrder(true)
+                .addSameItemsWithDifferentOrder(true)
+                .addDifferentItemsWithSameLength(false)
+                .addDifferentItemsWithDifferentLength(false);
+            // act
+            scenario.forEachCase((testCase) => {
+                it(testCase.name, () => {
+                    const actual = scrambledEqual(testCase.first, testCase.second);
+                    // assert
+                    expect(actual).to.equal(testCase.expected);
+                });
+            });
+        });
+    });
+    describe('sequenceEqual', () => {
+        describe('throws if arguments are undefined', () => {
+            it('first argument is undefined', () => {
+                const expectedError = 'undefined first array';
+                const act = () => sequenceEqual(undefined, []);
+                expect(act).to.throw(expectedError);
+            });
+            it('second arguments is undefined', () => {
+                const expectedError = 'undefined second array';
+                const act = () => sequenceEqual([], undefined);
+                expect(act).to.throw(expectedError);
+            });
+        });
+        describe('returns as expected', () => {
+            // arrange
+            const scenario = new ComparerTestScenario()
+                .addSameItemsWithSameOrder(true)
+                .addSameItemsWithDifferentOrder(true)
+                .addDifferentItemsWithSameLength(false)
+                .addDifferentItemsWithDifferentLength(false);
+            // act
+            scenario.forEachCase((testCase) => {
+                it(testCase.name, () => {
+                    const actual = scrambledEqual(testCase.first, testCase.second);
+                    // assert
+                    expect(actual).to.equal(testCase.expected);
+                });
+            });
+        });
+    });
+});
--- a/tests/unit/application/Common/Enum.spec.ts
+++ b/tests/unit/application/Common/Enum.spec.ts
@@ -1,6 +1,8 @@
 import 'mocha';
 import { expect } from 'chai';
-import { getEnumNames, getEnumValues, createEnumParser } from '@/application/Common/Enum';
+import { getEnumNames, getEnumValues, createEnumParser, assertInRange } from '@/application/Common/Enum';
+import { EnumRangeTestRunner } from './EnumRangeTestRunner';
+import { scrambledEqual } from '@/application/Common/Array';

 describe('Enum', () => {
    describe('createEnumParser', () => {
@@ -78,7 +80,7 @@ describe('Enum', () => {
            // act
            const actual = getEnumNames(TestEnum);
            // assert
-            expect(expected.sort()).to.deep.equal(actual.sort());
+            expect(scrambledEqual(expected, actual));
        });
    });
    describe('getEnumValues', () => {
@@ -89,7 +91,19 @@ describe('Enum', () => {
            // act
            const actual = getEnumValues(TestEnum);
            // assert
-            expect(expected.sort()).to.deep.equal(actual.sort());
+            expect(scrambledEqual(expected, actual));
        });
    });
+    describe('assertInRange', () => {
+        // arrange
+        enum TestEnum { Red, Green, Blue }
+        const validValue = TestEnum.Red;
+        // act
+        const act = (value: TestEnum) => assertInRange(value, TestEnum);
+        // assert
+        new EnumRangeTestRunner(act)
+            .testOutOfRangeThrows()
+            .testUndefinedValueThrows()
+            .testValidValueDoesNotThrow(validValue);
+    });
 });
--- a/tests/unit/application/Common/EnumRangeTestRunner.ts
+++ b/tests/unit/application/Common/EnumRangeTestRunner.ts
@@ -0,0 +1,54 @@
+import 'mocha';
+import { expect } from 'chai';
+import { EnumType } from '@/application/Common/Enum';
+
+export class EnumRangeTestRunner<TEnumValue extends EnumType> {
+    constructor(private readonly runner: (value: TEnumValue) => any) {
+    }
+    public testOutOfRangeThrows() {
+        it('throws when value is out of range', () => {
+            // arrange
+            const value = Number.MAX_SAFE_INTEGER as TEnumValue;
+            const expectedError = `enum value "${value}" is out of range`;
+            // act
+            const act = () => this.runner(value);
+            // assert
+            expect(act).to.throw(expectedError);
+        });
+        return this;
+    }
+    public testUndefinedValueThrows() {
+        it('throws when value is undefined', () => {
+            // arrange
+            const value = undefined;
+            const expectedError = 'undefined enum value';
+            // act
+            const act = () => this.runner(value);
+            // assert
+            expect(act).to.throw(expectedError);
+        });
+        return this;
+    }
+    public testInvalidValueThrows(invalidValue: TEnumValue, expectedError: string) {
+        it(`throws ${expectedError}`, () => {
+            // arrange
+            const value = invalidValue;
+            // act
+            const act = () => this.runner(value);
+            // assert
+            expect(act).to.throw(expectedError);
+        });
+        return this;
+    }
+    public testValidValueDoesNotThrow(validValue: TEnumValue) {
+        it('throws when value is undefined', () => {
+            // arrange
+            const value = validValue;
+            // act
+            const act = () => this.runner(value);
+            // assert
+            expect(act).to.not.throw();
+        });
+        return this;
+    }
+}
--- a/tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactory.spec.ts
+++ b/tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactory.spec.ts
@@ -0,0 +1,60 @@
+import 'mocha';
+import { expect } from 'chai';
+import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
+import { ScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/ScriptingLanguageFactory';
+import { ScriptingLanguageFactoryTestRunner } from './ScriptingLanguageFactoryTestRunner';
+import { EnumRangeTestRunner } from '@tests/unit/application/Common/EnumRangeTestRunner';
+
+class ScriptingLanguageConcrete extends ScriptingLanguageFactory<number> {
+    public registerGetter(language: ScriptingLanguage, getter: () => number) {
+        super.registerGetter(language, getter);
+    }
+}
+
+describe('ScriptingLanguageFactory', () => {
+    describe('registerGetter', () => {
+        describe('validates language', () => {
+            // arrange
+            const validValue = ScriptingLanguage.batchfile;
+            const getter = () => undefined;
+            const sut = new ScriptingLanguageConcrete();
+            // act
+            const act = (language: ScriptingLanguage) => sut.registerGetter(language, getter);
+            // assert
+            new EnumRangeTestRunner(act)
+                .testOutOfRangeThrows()
+                .testUndefinedValueThrows()
+                .testValidValueDoesNotThrow(validValue);
+        });
+        it('throw when getter is undefined', () => {
+            // arrange
+            const expectedError = `undefined getter`;
+            const language = ScriptingLanguage.batchfile;
+            const getter = undefined;
+            const sut = new ScriptingLanguageConcrete();
+            // act
+            const act = () => sut.registerGetter(language, getter);
+            // assert
+            expect(act).to.throw(expectedError);
+        });
+        it('throw when language is already registered', () => {
+            // arrange
+            const language = ScriptingLanguage.batchfile;
+            const expectedError = `${ScriptingLanguage[language]} is already registered`;
+            const getter = () => undefined;
+            const sut = new ScriptingLanguageConcrete();
+            // act
+            sut.registerGetter(language, getter);
+            const reRegister = () => sut.registerGetter(language, getter);
+            // assert
+            expect(reRegister).to.throw(expectedError);
+        });
+    });
+    describe('create', () => {
+        const sut = new ScriptingLanguageConcrete();
+        sut.registerGetter(ScriptingLanguage.batchfile, () => undefined);
+        const runner = new ScriptingLanguageFactoryTestRunner();
+        runner.testCreateMethod(sut);
+    });
+});
+
--- a/tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactoryTestRunner.ts
+++ b/tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactoryTestRunner.ts
@@ -0,0 +1,49 @@
+import 'mocha';
+import { expect } from 'chai';
+import { IScriptingLanguageFactory } from '@/application/Common/ScriptingLanguage/IScriptingLanguageFactory';
+import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
+import { EnumRangeTestRunner } from '@tests/unit/application/Common/EnumRangeTestRunner';
+
+export class ScriptingLanguageFactoryTestRunner<T> {
+    private expectedTypes = new Map<ScriptingLanguage, T>();
+    public expect(language: ScriptingLanguage, resultType: T) {
+        this.expectedTypes.set(language, resultType);
+        return this;
+    }
+    public testCreateMethod(sut: IScriptingLanguageFactory<T>) {
+        if (!sut) { throw new Error('undefined sut'); }
+        testLanguageValidation(sut);
+        testExpectedInstanceTypes(sut, this.expectedTypes);
+    }
+}
+
+function testExpectedInstanceTypes<T>(
+    sut: IScriptingLanguageFactory<T>,
+    expectedTypes: Map<ScriptingLanguage, T>) {
+    describe('create returns expected instances', () => {
+        // arrange
+        for (const language of Array.from(expectedTypes.keys())) {
+            it(ScriptingLanguage[language], () => {
+                // act
+                const expected = expectedTypes.get(language);
+                const result = sut.create(language);
+                // assert
+                expect(result).to.be.instanceOf(expected, `Actual was: ${result.constructor.name}`);
+            });
+        }
+    });
+}
+
+function testLanguageValidation<T>(sut: IScriptingLanguageFactory<T>) {
+    describe('validates language', () => {
+        // arrange
+        const validValue = ScriptingLanguage.batchfile;
+        // act
+        const act = (value: ScriptingLanguage) => sut.create(value);
+        // assert
+        new EnumRangeTestRunner(act)
+            .testOutOfRangeThrows()
+            .testUndefinedValueThrows()
+            .testValidValueDoesNotThrow(validValue);
+    });
+}
--- a/tests/unit/application/Context/ApplicationContext.spec.ts
+++ b/tests/unit/application/Context/ApplicationContext.spec.ts
@@ -5,8 +5,9 @@ import { OperatingSystem } from '@/domain/OperatingSystem';
 import { ICategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
 import { IApplicationContext, IApplicationContextChangedEvent } from '@/application/Context/IApplicationContext';
 import { IApplication } from '@/domain/IApplication';
-import { ApplicationStub } from '../../stubs/ApplicationStub';
-import { CategoryCollectionStub } from '../../stubs/CategoryCollectionStub';
+import { ApplicationStub } from '@tests/unit/stubs/ApplicationStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { EnumRangeTestRunner } from '@tests/unit/application/Common/EnumRangeTestRunner';

 describe('ApplicationContext', () => {
    describe('changeContext', () => {
@@ -180,40 +181,15 @@ describe('ApplicationContext', () => {
                expect(actual).to.deep.equal(expected);
            });
            describe('throws when OS is invalid', () => {
-                // arrange
-                const testCases = [
-                    {
-                        name: 'out of range',
-                        expectedError: 'os "9999" is out of range',
-                        os: 9999,
-                    },
-                    {
-                        name: 'undefined',
-                        expectedError: 'undefined os',
-                        os: undefined,
-                    },
-                    {
-                        name: 'unknown',
-                        expectedError: 'unknown os',
-                        os: OperatingSystem.Unknown,
-                    },
-                    {
-                        name: 'does not exist in application',
-                        expectedError: 'os "Android" is not defined in application',
-                        os: OperatingSystem.Android,
-                    },
-                ];
                // act
-                for (const testCase of testCases) {
-                    it(testCase.name, () => {
-                        const act = () =>
-                            new ObservableApplicationContextFactory()
-                                .withInitialOs(testCase.os)
-                                .construct();
-                        // assert
-                        expect(act).to.throw(testCase.expectedError);
-                    });
-                }
+                const act = (os: OperatingSystem) => new ObservableApplicationContextFactory()
+                    .withInitialOs(os)
+                    .construct();
+                // assert
+                new EnumRangeTestRunner(act)
+                    .testOutOfRangeThrows()
+                    .testUndefinedValueThrows()
+                    .testInvalidValueThrows(OperatingSystem.Android, 'os "Android" is not defined in application');
            });
        });
        describe('app', () => {
--- a/tests/unit/application/Context/ApplicationContextFactory.spec.ts
+++ b/tests/unit/application/Context/ApplicationContextFactory.spec.ts
@@ -2,12 +2,12 @@ import 'mocha';
 import { expect } from 'chai';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
-import { CategoryCollectionStub } from '../../stubs/CategoryCollectionStub';
-import { EnvironmentStub } from '../../stubs/EnvironmentStub';
-import { ApplicationStub } from '../../stubs/ApplicationStub';
 import { buildContextAsync } from '@/application/Context/ApplicationContextFactory';
 import { IApplicationFactory } from '@/application/IApplicationFactory';
 import { IApplication } from '@/domain/IApplication';
+import { EnvironmentStub } from '@tests/unit/stubs/EnvironmentStub';
+import { ApplicationStub } from '@tests/unit/stubs/ApplicationStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';

 describe('ApplicationContextFactory', () => {
    describe('buildContextAsync', () => {
--- a/tests/unit/application/Context/State/CategoryCollectionState.spec.ts
+++ b/tests/unit/application/Context/State/CategoryCollectionState.spec.ts
@@ -5,9 +5,9 @@ import { ApplicationCode } from '@/application/Context/State/Code/ApplicationCod
 import { CategoryCollectionState } from '@/application/Context/State/CategoryCollectionState';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { IScript } from '@/domain/IScript';
-import { ScriptStub } from '../../../stubs/ScriptStub';
-import { CategoryStub } from '../../../stubs/CategoryStub';
-import { CategoryCollectionStub } from '../../../stubs/CategoryCollectionStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';

 describe('CategoryCollectionState', () => {
    describe('code', () => {
@@ -55,7 +55,7 @@ describe('CategoryCollectionState', () => {
            const collection = new CategoryCollectionStub();
            const sut = new CategoryCollectionState(collection);
            // act
-            const actual = sut.selection.totalSelected;
+            const actual = sut.selection.selectedScripts.length;
            // assert
            expect(actual).to.equal(0);
        });
@@ -68,7 +68,7 @@ describe('CategoryCollectionState', () => {
            // act
            sut.selection.selectAll();
            // assert
-            expect(sut.selection.totalSelected).to.equal(1);
+            expect(sut.selection.selectedScripts.length).to.equal(1);
            expect(sut.selection.isSelected(expectedScript.id)).to.equal(true);
        });
    });
--- a/tests/unit/application/Context/State/Code/ApplicationCode.spec.ts
+++ b/tests/unit/application/Context/State/Code/ApplicationCode.spec.ts
@@ -9,10 +9,10 @@ import { CodePosition } from '@/application/Context/State/Code/Position/CodePosi
 import { ICodePosition } from '@/application/Context/State/Code/Position/ICodePosition';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 import { IUserScript } from '@/application/Context/State/Code/Generation/IUserScript';
-import { ScriptingDefinitionStub } from '../../../../stubs/ScriptingDefinitionStub';
-import { CategoryStub } from '../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../stubs/ScriptStub';
-import { CategoryCollectionStub } from '../../../../stubs/CategoryCollectionStub';
+import { ScriptingDefinitionStub } from '@tests/unit/stubs/ScriptingDefinitionStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';

 describe('ApplicationCode', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Context/State/Code/Event/CodeChangedEvent.spec.ts
+++ b/tests/unit/application/Context/State/Code/Event/CodeChangedEvent.spec.ts
@@ -4,8 +4,8 @@ import { CodeChangedEvent } from '@/application/Context/State/Code/Event/CodeCha
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import { ICodePosition } from '@/application/Context/State/Code/Position/ICodePosition';
 import { CodePosition } from '@/application/Context/State/Code/Position/CodePosition';
-import { SelectedScriptStub } from '../../../../../stubs/SelectedScriptStub';
-import { ScriptStub } from '../../../../../stubs/ScriptStub';
+import { SelectedScriptStub } from '@tests/unit/stubs/SelectedScriptStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('CodeChangedEvent', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Context/State/Code/Generation/CodeBuilderFactory.spec.ts
+++ b/tests/unit/application/Context/State/Code/Generation/CodeBuilderFactory.spec.ts
@@ -1,36 +1,13 @@
-import 'mocha';
-import { expect } from 'chai';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { ShellBuilder } from '@/application/Context/State/Code/Generation/Languages/ShellBuilder';
 import { BatchBuilder } from '@/application/Context/State/Code/Generation/Languages/BatchBuilder';
 import { CodeBuilderFactory } from '@/application/Context/State/Code/Generation/CodeBuilderFactory';
+import { ScriptingLanguageFactoryTestRunner } from '@tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactoryTestRunner';

 describe('CodeBuilderFactory', () => {
-    describe('create', () => {
-        describe('creates expected type', () => {
-            // arrange
-            const testCases: Array< { language: ScriptingLanguage, expected: any} > = [
-                { language: ScriptingLanguage.shellscript,  expected: ShellBuilder},
-                { language: ScriptingLanguage.batchfile,    expected: BatchBuilder},
-            ];
-            for (const testCase of testCases) {
-                it(ScriptingLanguage[testCase.language], () => {
-                    // act
-                    const sut = new CodeBuilderFactory();
-                    const result = sut.create(testCase.language);
-                    // assert
-                    expect(result).to.be.instanceOf(testCase.expected,
-                        `Actual was: ${result.constructor.name}`);
-                });
-            }
-        });
-        it('throws on unknown scripting language', () => {
-            // arrange
-            const sut = new CodeBuilderFactory();
-            // act
-            const act = () => sut.create(3131313131);
-            // assert
-            expect(act).to.throw(`unknown language: "${ScriptingLanguage[3131313131]}"`);
-        });
-    });
+    const sut = new CodeBuilderFactory();
+    const runner = new ScriptingLanguageFactoryTestRunner()
+        .expect(ScriptingLanguage.shellscript, ShellBuilder)
+        .expect(ScriptingLanguage.batchfile, BatchBuilder);
+    runner.testCreateMethod(sut);
 });
--- a/tests/unit/application/Context/State/Code/Generation/UserScriptGenerator.spec.ts
+++ b/tests/unit/application/Context/State/Code/Generation/UserScriptGenerator.spec.ts
@@ -4,8 +4,8 @@ import { UserScriptGenerator } from '@/application/Context/State/Code/Generation
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import { ICodeBuilderFactory } from '@/application/Context/State/Code/Generation/ICodeBuilderFactory';
 import { ICodeBuilder } from '@/application/Context/State/Code/Generation/ICodeBuilder';
-import { ScriptStub } from '../../../../../stubs/ScriptStub';
-import { ScriptingDefinitionStub } from '../../../../../stubs/ScriptingDefinitionStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { ScriptingDefinitionStub } from '@tests/unit/stubs/ScriptingDefinitionStub';

 describe('UserScriptGenerator', () => {
    describe('scriptingDefinition', () => {
--- a/tests/unit/application/Context/State/Code/Position/CodePosition.spec.ts
+++ b/tests/unit/application/Context/State/Code/Position/CodePosition.spec.ts
@@ -1,6 +1,6 @@
-import { CodePosition } from '@/application/Context/State/Code/Position/CodePosition';
 import 'mocha';
 import { expect } from 'chai';
+import { CodePosition } from '@/application/Context/State/Code/Position/CodePosition';

 describe('CodePosition', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Context/State/Filter/FilterResult.spec.ts
+++ b/tests/unit/application/Context/State/Filter/FilterResult.spec.ts
@@ -1,8 +1,8 @@
-import { CategoryStub } from '../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../stubs/ScriptStub';
-import { FilterResult } from '@/application/Context/State/Filter/FilterResult';
 import 'mocha';
 import { expect } from 'chai';
+import { FilterResult } from '@/application/Context/State/Filter/FilterResult';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('FilterResult', () => {
    describe('hasAnyMatches', () => {
--- a/tests/unit/application/Context/State/Filter/UserFilter.spec.ts
+++ b/tests/unit/application/Context/State/Filter/UserFilter.spec.ts
@@ -1,11 +1,10 @@
-
 import 'mocha';
 import { expect } from 'chai';
 import { IFilterResult } from '@/application/Context/State/Filter/IFilterResult';
 import { UserFilter } from '@/application/Context/State/Filter/UserFilter';
-import { CategoryStub } from '../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../stubs/ScriptStub';
-import { CategoryCollectionStub } from '../../../../stubs/CategoryCollectionStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';

 describe('UserFilter', () => {
    describe('removeFilter', () => {
--- a/tests/unit/application/Context/State/Selection/SelectedScript.spec.ts
+++ b/tests/unit/application/Context/State/Selection/SelectedScript.spec.ts
@@ -1,7 +1,7 @@
-import { ScriptStub } from '../../../../stubs/ScriptStub';
-import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import 'mocha';
 import { expect } from 'chai';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';

 describe('SelectedScript', () => {
    it('id is same as script id', () => {
--- a/tests/unit/application/Context/State/Selection/UserSelection.spec.ts
+++ b/tests/unit/application/Context/State/Selection/UserSelection.spec.ts
@@ -3,10 +3,10 @@ import { expect } from 'chai';
 import { IScript } from '@/domain/IScript';
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
-import { CategoryStub } from '../../../../stubs/CategoryStub';
-import { CategoryCollectionStub } from '../../../../stubs/CategoryCollectionStub';
-import { SelectedScriptStub } from '../../../../stubs/SelectedScriptStub';
-import { ScriptStub } from '../../../../stubs/ScriptStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { SelectedScriptStub } from '@tests/unit/stubs/SelectedScriptStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('UserSelection', () => {
    describe('ctor', () => {
@@ -152,7 +152,6 @@ describe('UserSelection', () => {
            // act
            sut.removeAllInCategory(categoryId);
            // assert
-            expect(sut.totalSelected).to.equal(0);
            expect(sut.selectedScripts.length).to.equal(0);
        });
        it('removes existing some exists', () => {
@@ -167,7 +166,6 @@ describe('UserSelection', () => {
            // act
            sut.removeAllInCategory(categoryId);
            // assert
-            expect(sut.totalSelected).to.equal(0);
            expect(sut.selectedScripts.length).to.equal(0);
        });
    });
--- a/tests/unit/application/Environment/BrowserOs/BrowserOsDetector.spec.ts
+++ b/tests/unit/application/Environment/BrowserOs/BrowserOsDetector.spec.ts
@@ -1,16 +1,18 @@
+import 'mocha';
 import { expect } from 'chai';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { BrowserOsDetector } from '@/application/Environment/BrowserOs/BrowserOsDetector';
 import { BrowserOsTestCases } from './BrowserOsTestCases';

 describe('BrowserOsDetector', () => {
-    it('unkown when user agent is undefined', () => {
+    it('returns undefined when user agent is undefined', () => {
        // arrange
+        const expected = undefined;
        const sut = new BrowserOsDetector();
        // act
        const actual = sut.detect(undefined);
        // assert
-        expect(actual).to.equal(OperatingSystem.Unknown);
+        expect(actual).to.equal(expected);
    });
    it('detects as expected', () => {
        for (const testCase of BrowserOsTestCases) {
--- a/tests/unit/application/Environment/DesktopOsTestCases.ts
+++ b/tests/unit/application/Environment/DesktopOsTestCases.ts
@@ -9,7 +9,7 @@ interface IDesktopTestCase {
 export const DesktopOsTestCases: ReadonlyArray<IDesktopTestCase> = [
    {
        processPlatform: 'aix',
-        expectedOs: OperatingSystem.Unknown,
+        expectedOs: undefined,
    },
    {
        processPlatform: 'darwin',
@@ -17,7 +17,7 @@ export const DesktopOsTestCases: ReadonlyArray<IDesktopTestCase> = [
    },
    {
        processPlatform: 'freebsd',
-        expectedOs: OperatingSystem.Unknown,
+        expectedOs: undefined,
    },
    {
        processPlatform: 'linux',
@@ -25,11 +25,11 @@ export const DesktopOsTestCases: ReadonlyArray<IDesktopTestCase> = [
    },
    {
        processPlatform: 'openbsd',
-        expectedOs: OperatingSystem.Unknown,
+        expectedOs: undefined,
    },
    {
        processPlatform: 'sunos',
-        expectedOs: OperatingSystem.Unknown,
+        expectedOs: undefined,
    },
    {
        processPlatform: 'win32',
--- a/tests/unit/application/Environment/Environment.spec.ts
+++ b/tests/unit/application/Environment/Environment.spec.ts
@@ -1,8 +1,9 @@
+import 'mocha';
+import { expect } from 'chai';
 import { IBrowserOsDetector } from '@/application/Environment/BrowserOs/IBrowserOsDetector';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { DesktopOsTestCases } from './DesktopOsTestCases';
 import { Environment } from '@/application/Environment/Environment';
-import { expect } from 'chai';

 interface EnvironmentVariables {
    window?: any;
--- a/tests/unit/application/Parser/ApplicationParser.spec.ts
+++ b/tests/unit/application/Parser/ApplicationParser.spec.ts
@@ -10,9 +10,9 @@ import { ProjectInformation } from '@/domain/ProjectInformation';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { getEnumValues } from '@/application/Common/Enum';
-import { CategoryCollectionStub } from '../../stubs/CategoryCollectionStub';
-import { getProcessEnvironmentStub } from '../../stubs/ProcessEnvironmentStub';
-import { CollectionDataStub } from '../../stubs/CollectionDataStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { getProcessEnvironmentStub } from '@tests/unit/stubs/ProcessEnvironmentStub';
+import { CollectionDataStub } from '@tests/unit/stubs/CollectionDataStub';

 describe('ApplicationParser', () => {
    describe('parseApplication', () => {
--- a/tests/unit/application/Parser/CategoryCollectionParser.spec.ts
+++ b/tests/unit/application/Parser/CategoryCollectionParser.spec.ts
@@ -7,13 +7,13 @@ import { parseProjectInformation } from '@/application/Parser/ProjectInformation
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { RecommendationLevel } from '@/domain/RecommendationLevel';
 import { ScriptingDefinitionParser } from '@/application/Parser/ScriptingDefinition/ScriptingDefinitionParser';
-import { EnumParserStub } from '../../stubs/EnumParserStub';
-import { ProjectInformationStub } from '../../stubs/ProjectInformationStub';
-import { getCategoryStub, CollectionDataStub } from '../../stubs/CollectionDataStub';
-import { CategoryCollectionParseContextStub } from '../../stubs/CategoryCollectionParseContextStub';
-import { CategoryDataStub } from '../../stubs/CategoryDataStub';
-import { ScriptDataStub } from '../../stubs/ScriptDataStub';
-import { FunctionDataStub } from '../../stubs/FunctionDataStub';
+import { EnumParserStub } from '@tests/unit/stubs/EnumParserStub';
+import { ProjectInformationStub } from '@tests/unit/stubs/ProjectInformationStub';
+import { getCategoryStub, CollectionDataStub } from '@tests/unit/stubs/CollectionDataStub';
+import { CategoryCollectionParseContextStub } from '@tests/unit/stubs/CategoryCollectionParseContextStub';
+import { CategoryDataStub } from '@tests/unit/stubs/CategoryDataStub';
+import { ScriptDataStub } from '@tests/unit/stubs/ScriptDataStub';
+import { FunctionDataStub } from '@tests/unit/stubs/FunctionDataStub';

 describe('CategoryCollectionParser', () => {
    describe('parseCategoryCollection', () => {
--- a/tests/unit/application/Parser/CategoryParser.spec.ts
+++ b/tests/unit/application/Parser/CategoryParser.spec.ts
@@ -3,11 +3,11 @@ import { expect } from 'chai';
 import { parseCategory } from '@/application/Parser/CategoryParser';
 import { parseScript } from '@/application/Parser/Script/ScriptParser';
 import { parseDocUrls } from '@/application/Parser/DocumentationParser';
-import { ScriptCompilerStub } from '../../stubs/ScriptCompilerStub';
-import { ScriptDataStub } from '../../stubs/ScriptDataStub';
-import { CategoryCollectionParseContextStub } from '../../stubs/CategoryCollectionParseContextStub';
-import { LanguageSyntaxStub } from '../../stubs/LanguageSyntaxStub';
-import { CategoryDataStub } from '../../stubs/CategoryDataStub';
+import { ScriptCompilerStub } from '@tests/unit/stubs/ScriptCompilerStub';
+import { ScriptDataStub } from '@tests/unit/stubs/ScriptDataStub';
+import { CategoryCollectionParseContextStub } from '@tests/unit/stubs/CategoryCollectionParseContextStub';
+import { LanguageSyntaxStub } from '@tests/unit/stubs/LanguageSyntaxStub';
+import { CategoryDataStub } from '@tests/unit/stubs/CategoryDataStub';

 describe('CategoryParser', () => {
    describe('parseCategory', () => {
--- a/tests/unit/application/Parser/ProjectInformationParser.spec.ts
+++ b/tests/unit/application/Parser/ProjectInformationParser.spec.ts
@@ -1,7 +1,7 @@
 import 'mocha';
 import { expect } from 'chai';
 import { parseProjectInformation } from '@/application/Parser/ProjectInformationParser';
-import { getProcessEnvironmentStub } from '../../stubs/ProcessEnvironmentStub';
+import { getProcessEnvironmentStub } from '@tests/unit/stubs/ProcessEnvironmentStub';

 describe('ProjectInformationParser', () => {
    describe('parseProjectInformation', () => {
--- a/tests/unit/application/Parser/Script/CategoryCollectionParseContext.spec.ts
+++ b/tests/unit/application/Parser/Script/CategoryCollectionParseContext.spec.ts
@@ -1,14 +1,14 @@
 import 'mocha';
 import { expect } from 'chai';
+import { FunctionData } from 'js-yaml-loader!@/*';
 import { ISyntaxFactory } from '@/application/Parser/Script/Syntax/ISyntaxFactory';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
-import { LanguageSyntaxStub } from '../../../stubs/LanguageSyntaxStub';
 import { CategoryCollectionParseContext } from '@/application/Parser/Script/CategoryCollectionParseContext';
-import { ScriptingDefinitionStub } from '../../../stubs/ScriptingDefinitionStub';
-import { FunctionDataStub } from '../../../stubs/FunctionDataStub';
 import { ILanguageSyntax } from '@/domain/ScriptCode';
 import { ScriptCompiler } from '@/application/Parser/Script/Compiler/ScriptCompiler';
-import { FunctionData } from 'js-yaml-loader!*';
+import { LanguageSyntaxStub } from '@tests/unit/stubs/LanguageSyntaxStub';
+import { ScriptingDefinitionStub } from '@tests/unit/stubs/ScriptingDefinitionStub';
+import { FunctionDataStub } from '@tests/unit/stubs/FunctionDataStub';

 describe('CategoryCollectionParseContext', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Parser/Script/Compiler/Expressions/ExpressionsCompiler.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/Expressions/ExpressionsCompiler.spec.ts
@@ -2,8 +2,8 @@ import 'mocha';
 import { expect } from 'chai';
 import { ExpressionsCompiler } from '@/application/Parser/Script/Compiler/Expressions/ExpressionsCompiler';
 import { IExpressionParser } from '@/application/Parser/Script/Compiler/Expressions/Parser/IExpressionParser';
-import { ExpressionStub } from '../../../../../stubs/ExpressionStub';
-import { ExpressionParserStub } from '../../../../../stubs/ExpressionParserStub';
+import { ExpressionStub } from '@tests/unit/stubs/ExpressionStub';
+import { ExpressionParserStub } from '@tests/unit/stubs/ExpressionParserStub';

 describe('ExpressionsCompiler', () => {
    describe('compileExpressions', () => {
--- a/tests/unit/application/Parser/Script/Compiler/Expressions/Parser/CompositeExpressionParser.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/Expressions/Parser/CompositeExpressionParser.spec.ts
@@ -3,7 +3,7 @@ import { expect } from 'chai';
 import { IExpression } from '@/application/Parser/Script/Compiler/Expressions/Expression/IExpression';
 import { IExpressionParser } from '@/application/Parser/Script/Compiler/Expressions/Parser/IExpressionParser';
 import { CompositeExpressionParser } from '@/application/Parser/Script/Compiler/Expressions/Parser/CompositeExpressionParser';
-import { ExpressionStub } from '../../../../../../stubs/ExpressionStub';
+import { ExpressionStub } from '@tests/unit/stubs/ExpressionStub';

 describe('CompositeExpressionParser', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Parser/Script/Compiler/Function/FunctionCompiler.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/Function/FunctionCompiler.spec.ts
@@ -1,11 +1,11 @@
 import 'mocha';
 import { expect } from 'chai';
 import { ISharedFunction } from '@/application/Parser/Script/Compiler/Function/ISharedFunction';
-import { FunctionData } from 'js-yaml-loader!*';
+import { FunctionData } from 'js-yaml-loader!@/*';
 import { IFunctionCallCompiler } from '@/application/Parser/Script/Compiler/FunctionCall/IFunctionCallCompiler';
 import { FunctionCompiler } from '@/application/Parser/Script/Compiler/Function/FunctionCompiler';
-import { FunctionCallCompilerStub } from '../../../../../stubs/FunctionCallCompilerStub';
-import { FunctionDataStub } from '../../../../../stubs/FunctionDataStub';
+import { FunctionCallCompilerStub } from '@tests/unit/stubs/FunctionCallCompilerStub';
+import { FunctionDataStub } from '@tests/unit/stubs/FunctionDataStub';

 describe('FunctionsCompiler', () => {
    describe('compileFunctions', () => {
--- a/tests/unit/application/Parser/Script/Compiler/Function/SharedFunctionCollection.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/Function/SharedFunctionCollection.spec.ts
@@ -1,7 +1,7 @@
 import 'mocha';
 import { expect } from 'chai';
 import { SharedFunctionCollection } from '@/application/Parser/Script/Compiler/Function/SharedFunctionCollection';
-import { SharedFunctionStub } from '../../../../../stubs/SharedFunctionStub';
+import { SharedFunctionStub } from '@tests/unit/stubs/SharedFunctionStub';

 describe('SharedFunctionCollection', () => {
    describe('addFunction', () => {
--- a/tests/unit/application/Parser/Script/Compiler/FunctionCall/FunctionCallCompiler.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/FunctionCall/FunctionCallCompiler.spec.ts
@@ -1,12 +1,12 @@
 import 'mocha';
 import { expect } from 'chai';
-import { FunctionCallData, FunctionCallParametersData } from 'js-yaml-loader!*';
+import { FunctionCallData, FunctionCallParametersData } from 'js-yaml-loader!@/*';
 import { FunctionCallCompiler } from '@/application/Parser/Script/Compiler/FunctionCall/FunctionCallCompiler';
 import { ISharedFunctionCollection } from '@/application/Parser/Script/Compiler/Function/ISharedFunctionCollection';
 import { IExpressionsCompiler } from '@/application/Parser/Script/Compiler/Expressions/IExpressionsCompiler';
-import { ExpressionsCompilerStub } from '../../../../../stubs/ExpressionsCompilerStub';
-import { SharedFunctionCollectionStub } from '../../../../../stubs/SharedFunctionCollectionStub';
-import { SharedFunctionStub } from '../../../../../stubs/SharedFunctionStub';
+import { ExpressionsCompilerStub } from '@tests/unit/stubs/ExpressionsCompilerStub';
+import { SharedFunctionCollectionStub } from '@tests/unit/stubs/SharedFunctionCollectionStub';
+import { SharedFunctionStub } from '@tests/unit/stubs/SharedFunctionStub';

 describe('FunctionCallCompiler', () => {
    describe('compileCall', () => {
--- a/tests/unit/application/Parser/Script/Compiler/ScriptCompiler.spec.ts
+++ b/tests/unit/application/Parser/Script/Compiler/ScriptCompiler.spec.ts
@@ -6,12 +6,12 @@ import { ILanguageSyntax } from '@/domain/ScriptCode';
 import { IFunctionCompiler } from '@/application/Parser/Script/Compiler/Function/IFunctionCompiler';
 import { IFunctionCallCompiler } from '@/application/Parser/Script/Compiler/FunctionCall/IFunctionCallCompiler';
 import { ICompiledCode } from '@/application/Parser/Script/Compiler/FunctionCall/ICompiledCode';
-import { LanguageSyntaxStub } from '../../../../stubs/LanguageSyntaxStub';
-import { ScriptDataStub } from '../../../../stubs/ScriptDataStub';
-import { FunctionDataStub } from '../../../../stubs/FunctionDataStub';
-import { FunctionCallCompilerStub } from '../../../../stubs/FunctionCallCompilerStub';
-import { FunctionCompilerStub } from '../../../../stubs/FunctionCompilerStub';
-import { SharedFunctionCollectionStub } from '../../../../stubs/SharedFunctionCollectionStub';
+import { LanguageSyntaxStub } from '@tests/unit/stubs/LanguageSyntaxStub';
+import { ScriptDataStub } from '@tests/unit/stubs/ScriptDataStub';
+import { FunctionDataStub } from '@tests/unit/stubs/FunctionDataStub';
+import { FunctionCallCompilerStub } from '@tests/unit/stubs/FunctionCallCompilerStub';
+import { FunctionCompilerStub } from '@tests/unit/stubs/FunctionCompilerStub';
+import { SharedFunctionCollectionStub } from '@tests/unit/stubs/SharedFunctionCollectionStub';

 describe('ScriptCompiler', () => {
    describe('ctor', () => {
--- a/tests/unit/application/Parser/Script/ScriptParser.spec.ts
+++ b/tests/unit/application/Parser/Script/ScriptParser.spec.ts
@@ -4,12 +4,12 @@ import { parseScript } from '@/application/Parser/Script/ScriptParser';
 import { parseDocUrls } from '@/application/Parser/DocumentationParser';
 import { RecommendationLevel } from '@/domain/RecommendationLevel';
 import { ICategoryCollectionParseContext } from '@/application/Parser/Script/ICategoryCollectionParseContext';
-import { ScriptCompilerStub } from '../../../stubs/ScriptCompilerStub';
-import { ScriptDataStub } from '../../../stubs/ScriptDataStub';
-import { EnumParserStub } from '../../../stubs/EnumParserStub';
-import { ScriptCodeStub } from '../../../stubs/ScriptCodeStub';
-import { CategoryCollectionParseContextStub } from '../../../stubs/CategoryCollectionParseContextStub';
-import { LanguageSyntaxStub } from '../../../stubs/LanguageSyntaxStub';
+import { ScriptCompilerStub } from '@tests/unit/stubs/ScriptCompilerStub';
+import { ScriptDataStub } from '@tests/unit/stubs/ScriptDataStub';
+import { EnumParserStub } from '@tests/unit/stubs/EnumParserStub';
+import { ScriptCodeStub } from '@tests/unit/stubs/ScriptCodeStub';
+import { CategoryCollectionParseContextStub } from '@tests/unit/stubs/CategoryCollectionParseContextStub';
+import { LanguageSyntaxStub } from '@tests/unit/stubs/LanguageSyntaxStub';

 describe('ScriptParser', () => {
    describe('parseScript', () => {
--- a/tests/unit/application/Parser/Script/Syntax/ConcreteSyntaxes.spec.ts
+++ b/tests/unit/application/Parser/Script/Syntax/ConcreteSyntaxes.spec.ts
@@ -4,7 +4,6 @@ import { ILanguageSyntax } from '@/domain/ScriptCode';
 import { BatchFileSyntax } from '@/application/Parser/Script/Syntax/BatchFileSyntax';
 import { ShellScriptSyntax } from '@/application/Parser/Script/Syntax/ShellScriptSyntax';

-
 function getSystemsUnderTest(): ILanguageSyntax[] {
    return [ new BatchFileSyntax(), new ShellScriptSyntax() ];
 }
--- a/tests/unit/application/Parser/Script/Syntax/SyntaxFactory.spec.ts
+++ b/tests/unit/application/Parser/Script/Syntax/SyntaxFactory.spec.ts
@@ -1,38 +1,14 @@
 import 'mocha';
-import { expect } from 'chai';
 import { SyntaxFactory } from '@/application/Parser/Script/Syntax/SyntaxFactory';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { ShellScriptSyntax } from '@/application/Parser/Script/Syntax/ShellScriptSyntax';
 import { BatchFileSyntax } from '@/application/Parser/Script/Syntax/BatchFileSyntax';
+import { ScriptingLanguageFactoryTestRunner } from '@tests/unit/application/Common/ScriptingLanguage/ScriptingLanguageFactoryTestRunner';

 describe('SyntaxFactory', () => {
-    describe('getSyntax', () => {
-        describe('creates expected type', () => {
-            describe('shellscript returns ShellBuilder', () => {
-                // arrange
-                const testCases: Array< { language: ScriptingLanguage, expected: any} > = [
-                    { language: ScriptingLanguage.shellscript,  expected: ShellScriptSyntax},
-                    { language: ScriptingLanguage.batchfile,    expected: BatchFileSyntax},
-                ];
-                for (const testCase of testCases) {
-                    it(ScriptingLanguage[testCase.language], () => {
-                        // act
-                        const sut = new SyntaxFactory();
-                        const result = sut.create(testCase.language);
-                        // assert
-                        expect(result).to.be.instanceOf(testCase.expected,
-                            `Actual was: ${result.constructor.name}`);
-                    });
-                }
-            });
-        });
-        it('throws on unknown scripting language', () => {
-            // arrange
-            const sut = new SyntaxFactory();
-            // act
-            const act = () => sut.create(3131313131);
-            // assert
-            expect(act).to.throw(`unknown language: "${ScriptingLanguage[3131313131]}"`);
-        });
-    });
+    const sut = new SyntaxFactory();
+    const runner = new ScriptingLanguageFactoryTestRunner()
+        .expect(ScriptingLanguage.shellscript, ShellScriptSyntax)
+        .expect(ScriptingLanguage.batchfile, BatchFileSyntax);
+    runner.testCreateMethod(sut);
 });
--- a/tests/unit/application/Parser/ScriptingDefinition/CodeSubstituter.spec.ts
+++ b/tests/unit/application/Parser/ScriptingDefinition/CodeSubstituter.spec.ts
@@ -2,8 +2,8 @@ import 'mocha';
 import { expect } from 'chai';
 import { CodeSubstituter } from '@/application/Parser/ScriptingDefinition/CodeSubstituter';
 import { IExpressionsCompiler } from '@/application/Parser/Script/Compiler/Expressions/IExpressionsCompiler';
-import { ProjectInformationStub } from '../../../stubs/ProjectInformationStub';
-import { ExpressionsCompilerStub } from '../../../stubs/ExpressionsCompilerStub';
+import { ProjectInformationStub } from '@tests/unit/stubs/ProjectInformationStub';
+import { ExpressionsCompilerStub } from '@tests/unit/stubs/ExpressionsCompilerStub';

 describe('CodeSubstituter', () => {
    describe('throws with invalid parameters', () => {
--- a/tests/unit/application/Parser/ScriptingDefinition/ScriptingDefinitionParser.spec.ts
+++ b/tests/unit/application/Parser/ScriptingDefinition/ScriptingDefinitionParser.spec.ts
@@ -5,10 +5,10 @@ import { ScriptingDefinitionParser } from '@/application/Parser/ScriptingDefinit
 import { IEnumParser } from '@/application/Common/Enum';
 import { ICodeSubstituter } from '@/application/Parser/ScriptingDefinition/ICodeSubstituter';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
-import { ProjectInformationStub } from '../../../stubs/ProjectInformationStub';
-import { EnumParserStub } from '../../../stubs/EnumParserStub';
-import { ScriptingDefinitionDataStub } from '../../../stubs/ScriptingDefinitionDataStub';
-import { CodeSubstituterStub } from '../../../stubs/CodeSubstituterStub';
+import { ProjectInformationStub } from '@tests/unit/stubs/ProjectInformationStub';
+import { EnumParserStub } from '@tests/unit/stubs/EnumParserStub';
+import { ScriptingDefinitionDataStub } from '@tests/unit/stubs/ScriptingDefinitionDataStub';
+import { CodeSubstituterStub } from '@tests/unit/stubs/CodeSubstituterStub';

 describe('ScriptingDefinitionParser', () => {
    describe('parseScriptingDefinition', () => {
--- a/tests/unit/domain/Application.spec.ts
+++ b/tests/unit/domain/Application.spec.ts
@@ -1,9 +1,9 @@
 import 'mocha';
 import { expect } from 'chai';
 import { Application } from '@/domain/Application';
-import { CategoryCollectionStub } from '../stubs/CategoryCollectionStub';
-import { ProjectInformationStub } from '../stubs/ProjectInformationStub';
 import { OperatingSystem } from '@/domain/OperatingSystem';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { ProjectInformationStub } from '@tests/unit/stubs/ProjectInformationStub';

 describe('Application', () => {
    describe('getCollection', () => {
--- a/tests/unit/domain/Category.spec.ts
+++ b/tests/unit/domain/Category.spec.ts
@@ -1,8 +1,8 @@
 import 'mocha';
 import { expect } from 'chai';
 import { Category } from '@/domain/Category';
-import { CategoryStub } from '../stubs/CategoryStub';
-import { ScriptStub } from '../stubs/ScriptStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('Category', () => {
    describe('ctor', () => {
--- a/tests/unit/domain/CategoryCollection.spec.ts
+++ b/tests/unit/domain/CategoryCollection.spec.ts
@@ -7,8 +7,9 @@ import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { RecommendationLevel } from '@/domain/RecommendationLevel';
 import { getEnumValues } from '@/application/Common/Enum';
 import { CategoryCollection } from '@/domain/CategoryCollection';
-import { ScriptStub } from '../stubs/ScriptStub';
-import { CategoryStub } from '../stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { EnumRangeTestRunner } from '@tests/unit/application/Common/EnumRangeTestRunner';

 describe('CategoryCollection', () => {
    describe('getScriptsByLevel', () => {
@@ -186,35 +187,15 @@ describe('CategoryCollection', () => {
            // assert
            expect(sut.os).to.deep.equal(expected);
        });
-        it('cannot construct with unknown os', () => {
-            // arrange
-            const os = OperatingSystem.Unknown;
+        describe('throws when invalid', () => {
            // act
-            const construct = () => new CategoryCollectionBuilder()
+            const act = (os: OperatingSystem) => new CategoryCollectionBuilder()
                .withOs(os)
                .construct();
            // assert
-            expect(construct).to.throw('unknown os');
-        });
-        it('cannot construct with undefined os', () => {
-            // arrange
-            const os = undefined;
-            // act
-            const construct = () => new CategoryCollectionBuilder()
-                .withOs(os)
-                .construct();
-            // assert
-            expect(construct).to.throw('undefined os');
-        });
-        it('cannot construct with OS not in range', () => {
-            // arrange
-            const os: OperatingSystem = 666;
-            // act
-            const construct = () => new CategoryCollectionBuilder()
-                .withOs(os)
-                .construct();
-            // assert
-            expect(construct).to.throw(`os "${os}" is out of range`);
+            new EnumRangeTestRunner(act)
+                .testOutOfRangeThrows()
+                .testUndefinedValueThrows();
        });
    });
    describe('scriptingDefinition', () => {
--- a/tests/unit/domain/ProjectInformation.spec.ts
+++ b/tests/unit/domain/ProjectInformation.spec.ts
@@ -2,6 +2,7 @@ import 'mocha';
 import { expect } from 'chai';
 import { ProjectInformation } from '@/domain/ProjectInformation';
 import { OperatingSystem } from '@/domain/OperatingSystem';
+import { EnumRangeTestRunner } from '@tests/unit/application/Common/EnumRangeTestRunner';

 describe('ProjectInformation', () => {
    it('sets name as expected', () => {
@@ -115,14 +116,16 @@ describe('ProjectInformation', () => {
            // assert
            expect(actual).to.equal(expected);
        });
-        it('throws when OS is unknown', () => {
+        describe('throws when os is invalid', () => {
            // arrange
            const sut = new ProjectInformation('name', 'version', 'repositoryUrl', 'homepage');
-            const os = OperatingSystem.Unknown;
            // act
-            const act = () => sut.getDownloadUrl(os);
+            const act = (os: OperatingSystem) =>  sut.getDownloadUrl(os);
            // assert
-            expect(act).to.throw(`Unsupported os: ${OperatingSystem[os]}`);
+            new EnumRangeTestRunner(act)
+                .testOutOfRangeThrows()
+                .testUndefinedValueThrows()
+                .testInvalidValueThrows(OperatingSystem.KaiOS, `Unsupported os: ${OperatingSystem[OperatingSystem.KaiOS]}`);
        });
    });
 });
--- a/tests/unit/domain/Script.spec.ts
+++ b/tests/unit/domain/Script.spec.ts
@@ -1,10 +1,10 @@
-import { getEnumValues } from '@/application/Common/Enum';
 import 'mocha';
 import { expect } from 'chai';
+import { getEnumValues } from '@/application/Common/Enum';
 import { Script } from '@/domain/Script';
 import { RecommendationLevel } from '@/domain/RecommendationLevel';
 import { IScriptCode } from '@/domain/IScriptCode';
-import { ScriptCodeStub } from '../stubs/ScriptCodeStub';
+import { ScriptCodeStub } from '@tests/unit/stubs/ScriptCodeStub';

 describe('Script', () => {
    describe('ctor', () => {
--- a/tests/unit/domain/ScriptCode.spec.ts
+++ b/tests/unit/domain/ScriptCode.spec.ts
@@ -3,7 +3,7 @@ import { expect } from 'chai';
 import { ScriptCode } from '@/domain/ScriptCode';
 import { IScriptCode } from '@/domain/IScriptCode';
 import { ILanguageSyntax } from '@/domain/ScriptCode';
-import { LanguageSyntaxStub } from '../stubs/LanguageSyntaxStub';
+import { LanguageSyntaxStub } from '@tests/unit/stubs/LanguageSyntaxStub';

 describe('ScriptCode', () => {
    describe('code', () => {
--- a/tests/unit/infrastructure/AsyncLazy.spec.ts
+++ b/tests/unit/infrastructure/AsyncLazy.spec.ts
@@ -1,28 +1,24 @@
-import { AsyncLazy } from '@/infrastructure/Threading/AsyncLazy';
 import 'mocha';
 import { expect } from 'chai';
+import { AsyncLazy } from '@/infrastructure/Threading/AsyncLazy';

 describe('AsyncLazy', () => {
-
    it('returns value from lambda', async () => {
        // arrange
        const expected = 'test';
        const lambda = () => Promise.resolve(expected);
        const sut = new AsyncLazy(lambda);
-
        // act
        const actual = await sut.getValueAsync();
-
        // assert
        expect(actual).to.equal(expected);
    });
-
    describe('when running multiple times', () => {
+        // arrange
        let totalExecuted: number = 0;
-
        beforeEach(() => totalExecuted = 0);
-
        it('when running sync', async () => {
+            // act
            const sut = new AsyncLazy(() => {
                totalExecuted++;
                return Promise.resolve(totalExecuted);
@@ -31,11 +27,12 @@ describe('AsyncLazy', () => {
            for (let i = 0; i < 5; i++) {
                results.push(await sut.getValueAsync());
            }
+            // assert
            expect(totalExecuted).to.equal(1);
            expect(results).to.deep.equal([1, 1, 1, 1, 1]);
        });
-
        it('when running long-running task in parallel', async () => {
+            // act
            const sleepAsync = (time: number) => new Promise(((resolve) => setTimeout(resolve, time)));
            const sut = new AsyncLazy(async () => {
                await sleepAsync(100);
@@ -48,6 +45,7 @@ describe('AsyncLazy', () => {
                sut.getValueAsync(),
                sut.getValueAsync(),
                sut.getValueAsync()]);
+            // assert
            expect(totalExecuted).to.equal(1);
            expect(results).to.deep.equal([1, 1, 1, 1, 1]);
        });
--- a/tests/unit/infrastructure/CodeRunner.spec.ts
+++ b/tests/unit/infrastructure/CodeRunner.spec.ts
@@ -1,8 +1,8 @@
-import { EnvironmentStub } from './../stubs/EnvironmentStub';
-import { OperatingSystem } from '@/domain/OperatingSystem';
 import 'mocha';
 import { expect } from 'chai';
-import { runCodeAsync } from '@/infrastructure/CodeRunner';
+import { EnvironmentStub } from '@tests/unit/stubs/EnvironmentStub';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { CodeRunner } from '@/infrastructure/CodeRunner';

 describe('CodeRunner', () => {
    describe('runCodeAsync', () => {
@@ -127,7 +127,8 @@ class TestContext {
    private env = mockEnvironment(OperatingSystem.Windows);

    public async runCodeAsync(): Promise<void> {
-        await runCodeAsync(this.code, this.folderName, this.fileExtension, this.mocks, this.env);
+        const runner = new CodeRunner(this.mocks, this.env);
+        await runner.runCodeAsync(this.code, this.folderName, this.fileExtension);
    }
    public withOs(os: OperatingSystem) {
        this.env = mockEnvironment(os);
--- a/tests/unit/infrastructure/Events/EventSource.spec.ts
+++ b/tests/unit/infrastructure/Events/EventSource.spec.ts
@@ -1,7 +1,7 @@
+import 'mocha';
+import { expect } from 'chai';
 import { EventHandler, IEventSource, IEventSubscription } from '@/infrastructure/Events/IEventSource';
 import { EventSource } from '@/infrastructure/Events/EventSource';
-import { expect } from 'chai';
-import 'mocha';

 describe('EventSource', () => {
    class ObserverMock {
@@ -42,7 +42,6 @@ describe('EventSource', () => {
            expect(observer.onReceiveCalls).to.have.lengthOf(0);
        });
    });
-
    describe('multiple observers', () => {
        // arrange
        let observers: ObserverMock[];
--- a/tests/unit/infrastructure/Events/EventSubscriptionCollection.spec.ts
+++ b/tests/unit/infrastructure/Events/EventSubscriptionCollection.spec.ts
@@ -1,7 +1,7 @@
+import 'mocha';
+import { expect } from 'chai';
 import { EventSubscriptionCollection } from '@/infrastructure/Events/EventSubscriptionCollection';
 import { IEventSubscription } from '@/infrastructure/Events/IEventSource';
-import { expect } from 'chai';
-import 'mocha';

 describe('EventSubscriptionCollection', () => {
    it('unsubscribeAll unsubscribes from all registered subscriptions', () => {
--- a/tests/unit/infrastructure/InMemoryRepository.spec.ts
+++ b/tests/unit/infrastructure/InMemoryRepository.spec.ts
@@ -1,6 +1,7 @@
-import { NumericEntityStub } from './../stubs/NumericEntityStub';
-import { InMemoryRepository } from '@/infrastructure/Repository/InMemoryRepository';
+import 'mocha';
 import { expect } from 'chai';
+import { NumericEntityStub } from '@tests/unit/stubs/NumericEntityStub';
+import { InMemoryRepository } from '@/infrastructure/Repository/InMemoryRepository';

 describe('InMemoryRepository', () => {
    describe('exists', () => {
--- a/tests/unit/presentation/components/Scripts/Menu/Selector/SelectionStateTestScenario.ts
+++ b/tests/unit/presentation/components/Scripts/Menu/Selector/SelectionStateTestScenario.ts
@@ -0,0 +1,32 @@
+import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
+import { RecommendationLevel } from '@/domain/RecommendationLevel';
+import { CategoryCollectionStateStub } from '@tests/unit/stubs/CategoryCollectionStateStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+
+export class SelectionStateTestScenario {
+    public readonly all: readonly SelectedScript[];
+    public readonly allStandard: readonly SelectedScript[];
+    public readonly someStandard: readonly SelectedScript[];
+    public readonly someStrict: readonly SelectedScript[];
+    public readonly allStrict: readonly SelectedScript[];
+    public readonly someUnrecommended: readonly SelectedScript[];
+    public readonly allUnrecommended: readonly SelectedScript[];
+    constructor() {
+        this.someStandard = createSelectedScripts(RecommendationLevel.Standard, 'standard-some-1', 'standard-some-2');
+        this.allStandard = [...this.someStandard, ...createSelectedScripts(RecommendationLevel.Standard, 'standard-all-1', 'standard-all-2')];
+        this.someStrict = createSelectedScripts(RecommendationLevel.Strict, 'strict-some-1', 'strict-some-2');
+        this.allStrict = [...this.someStrict, ...createSelectedScripts(RecommendationLevel.Strict, 'strict-all-1', 'strict-all-2')];
+        this.someUnrecommended = createSelectedScripts(undefined, 'unrecommended-some-1', 'unrecommended-some-2');
+        this.allUnrecommended = [...this.someUnrecommended, ...createSelectedScripts(undefined, 'unrecommended-all-1', 'unrecommended-all-2')];
+        this.all = [...this.allStandard, ...this.allStrict, ...this.allUnrecommended];
+    }
+    public generateState(selectedScripts: readonly SelectedScript[]) {
+        const allScripts = this.all.map((s) => s.script);
+        return new CategoryCollectionStateStub(allScripts)
+            .withSelectedScripts(selectedScripts);
+    }
+}
+
+function createSelectedScripts(level?: RecommendationLevel, ...ids: string[]) {
+    return ids.map((id) => new SelectedScript(new ScriptStub(id).withLevel(level), false));
+}
--- a/tests/unit/presentation/components/Scripts/Menu/Selector/SelectionTypeHandler.spec.ts
+++ b/tests/unit/presentation/components/Scripts/Menu/Selector/SelectionTypeHandler.spec.ts
@@ -0,0 +1,132 @@
+import 'mocha';
+import { expect } from 'chai';
+import { SelectionType, SelectionTypeHandler } from '@/presentation/components/Scripts/Menu/Selector/SelectionTypeHandler';
+import { scrambledEqual } from '@/application/Common/Array';
+import { RecommendationLevel } from '@/domain/RecommendationLevel';
+import { SelectionStateTestScenario } from './SelectionStateTestScenario';
+
+describe('SelectionTypeHandler', () => {
+    describe('ctor', () => {
+        it('throws when state is undefined', () => {
+            // arrange
+            const expectedError = 'undefined state';
+            const state = undefined;
+            // act
+            const sut = () => new SelectionTypeHandler(state);
+            // assert
+            expect(sut).to.throw(expectedError);
+        });
+    });
+    describe('selectType', () => {
+        it('throws when type is custom', () => {
+            // arrange
+            const expectedError = 'cannot select custom type';
+            const scenario = new SelectionStateTestScenario();
+            const state = scenario.generateState([]);
+            const sut = new SelectionTypeHandler(state);
+            // act
+            const act = () => sut.selectType(SelectionType.Custom);
+            // assert
+            expect(act).to.throw(expectedError);
+        });
+        describe('select types as expected', () => {
+            // arrange
+            const scenario = new SelectionStateTestScenario();
+            const initialScriptsCases = [{
+                name: 'when nothing is selected',
+                initialScripts: [],
+            }, {
+                name: 'when some scripts are selected',
+                initialScripts: [...scenario.allStandard, ...scenario.someStrict],
+            }, {
+                name: 'when all scripts are selected',
+                initialScripts: scenario.all,
+            } ];
+            for (const initialScriptsCase of initialScriptsCases) {
+                describe(initialScriptsCase.name, () => {
+                    const state = scenario.generateState(initialScriptsCase.initialScripts);
+                    const sut = new SelectionTypeHandler(state);
+                    const typeExpectations = [{
+                        input: SelectionType.None,
+                        output: [],
+                    }, {
+                        input: SelectionType.Standard,
+                        output: scenario.allStandard,
+                    }, {
+                        input: SelectionType.Strict,
+                        output: [...scenario.allStandard, ...scenario.allStrict],
+                    }, {
+                        input: SelectionType.All,
+                        output: scenario.all,
+                    }];
+                    for (const expectation of typeExpectations) {
+                        // act
+                        it(`${SelectionType[expectation.input]} returns as expected`, () => {
+                            sut.selectType(expectation.input);
+                            // assert
+                            const actual = state.selection.selectedScripts;
+                            const expected = expectation.output;
+                            expect(scrambledEqual(actual, expected));
+                        });
+                    }
+                });
+            }
+        });
+    });
+    describe('getCurrentSelectionType', () => {
+        // arrange
+        const scenario = new SelectionStateTestScenario();
+        const testCases = [{
+            name: 'when nothing is selected',
+            selection: [],
+            expected: SelectionType.None,
+        }, {
+            name: 'when some standard scripts are selected',
+            selection: scenario.someStandard,
+            expected: SelectionType.Custom,
+        }, {
+            name: 'when all standard scripts are selected',
+            selection: scenario.allStandard,
+            expected: SelectionType.Standard,
+        }, {
+            name: 'when all standard and some strict scripts are selected',
+            selection: [...scenario.allStandard, ...scenario.someStrict],
+            expected: SelectionType.Custom,
+        }, {
+            name: 'when all standard and strict scripts are selected',
+            selection: [...scenario.allStandard, ...scenario.allStrict],
+            expected: SelectionType.Strict,
+        }, {
+            name: 'when strict scripts are selected but not standard',
+            selection: scenario.allStrict,
+            expected: SelectionType.Custom,
+        }, {
+            name: 'when all standard and strict, and some unrecommended are selected',
+            selection: [...scenario.allStandard, ...scenario.allStrict, ...scenario.someUnrecommended],
+            expected: SelectionType.Custom,
+        }, {
+            name: 'when all scripts are selected',
+            selection: scenario.all,
+            expected: SelectionType.All,
+        } ];
+        for (const testCase of testCases) {
+            it(testCase.name, () => {
+                const state = scenario.generateState(testCase.selection);
+                const sut = new SelectionTypeHandler(state);
+                // act
+                const actual = sut.getCurrentSelectionType();
+                // assert
+                expect(actual).to.deep.equal(testCase.expected,
+                    `Actual: "${SelectionType[actual]}", expected: "${SelectionType[testCase.expected]}"` +
+                    `\nSelection: ${printSelection()}`);
+                function printSelection() {
+                    return `total: ${testCase.selection.length}\n` +
+                        'scripts:\n' +
+                        testCase.selection
+                            .map((s) => `{ id: ${s.script.id}, level: ${s.script.level === undefined ? 'unknown' : RecommendationLevel[s.script.level]} }`)
+                            .join(' | ');
+                }
+            });
+        }
+    });
+});
--- a/tests/unit/presentation/components/Scripts/ScriptsTree/ScriptNodeParser.spec.ts
+++ b/tests/unit/presentation/components/Scripts/ScriptsTree/ScriptNodeParser.spec.ts
@@ -6,9 +6,9 @@ import { parseSingleCategory,
 import { INode, NodeType } from '@/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/INode';
 import { IScript } from '@/domain/IScript';
 import { ICategory } from '@/domain/ICategory';
-import { CategoryStub } from '../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../stubs/ScriptStub';
-import { CategoryCollectionStub } from '../../../../stubs/CategoryCollectionStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';

 describe('ScriptNodeParser', () => {
    it('can convert script id and back', () => {
--- a/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/CategoryReverter.spec.ts
+++ b/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/CategoryReverter.spec.ts
@@ -4,9 +4,9 @@ import { CategoryReverter } from '@/presentation/components/Scripts/ScriptsTree/
 import { getCategoryNodeId } from '@/presentation/components/Scripts/ScriptsTree/ScriptNodeParser';
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
-import { CategoryStub } from '../../../../../../../stubs/CategoryStub';
-import { CategoryCollectionStub } from '../../../../../../../stubs/CategoryCollectionStub';
-import { ScriptStub } from '../../../../../../../stubs/ScriptStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('CategoryReverter', () => {
    describe('getState', () => {
--- a/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/ReverterFactory.spec.ts
+++ b/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/ReverterFactory.spec.ts
@@ -6,9 +6,9 @@ import {
 import { ScriptReverter } from '@/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/ScriptReverter';
 import { CategoryReverter } from '@/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/CategoryReverter';
 import { getScriptNodeId, getCategoryNodeId } from '@/presentation/components/Scripts/ScriptsTree/ScriptNodeParser';
-import { CategoryCollectionStub } from '../../../../../../../stubs/CategoryCollectionStub';
-import { CategoryStub } from '../../../../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../../../../stubs/ScriptStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';

 describe('ReverterFactory', () => {
    describe('getReverter', () => {
--- a/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/ScriptReverter.spec.ts
+++ b/tests/unit/presentation/components/Scripts/ScriptsTree/SelectableTree/Node/Reverter/ScriptReverter.spec.ts
@@ -4,10 +4,10 @@ import { ScriptReverter } from '@/presentation/components/Scripts/ScriptsTree/Se
 import { getScriptNodeId } from '@/presentation/components/Scripts/ScriptsTree/ScriptNodeParser';
 import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
-import { CategoryCollectionStub } from '../../../../../../../stubs/CategoryCollectionStub';
-import { CategoryStub } from '../../../../../../../stubs/CategoryStub';
-import { ScriptStub } from '../../../../../../../stubs/ScriptStub';
-import { SelectedScriptStub } from '../../../../../../../stubs/SelectedScriptStub';
+import { CategoryCollectionStub } from '@tests/unit/stubs/CategoryCollectionStub';
+import { CategoryStub } from '@tests/unit/stubs/CategoryStub';
+import { ScriptStub } from '@tests/unit/stubs/ScriptStub';
+import { SelectedScriptStub } from '@tests/unit/stubs/SelectedScriptStub';

 describe('ScriptReverter', () => {
    describe('getState', () => {
--- a/tests/unit/stubs/ApplicationCodeStub.ts
+++ b/tests/unit/stubs/ApplicationCodeStub.ts
@@ -0,0 +1,9 @@
+import { ICodeChangedEvent } from '@/application/Context/State/Code/Event/ICodeChangedEvent';
+import { IApplicationCode } from '@/application/Context/State/Code/IApplicationCode';
+import { IEventSource } from '@/infrastructure/Events/IEventSource';
+import { EventSource } from '@/infrastructure/Events/EventSource';
+
+export class ApplicationCodeStub implements IApplicationCode {
+    public changed: IEventSource<ICodeChangedEvent> = new EventSource<ICodeChangedEvent>();
+    public current: string = '';
+}
--- a/tests/unit/stubs/CategoryCollectionParseContextStub.ts
+++ b/tests/unit/stubs/CategoryCollectionParseContextStub.ts
@@ -1,8 +1,8 @@
 import { ICategoryCollectionParseContext } from '@/application/Parser/Script/ICategoryCollectionParseContext';
-import { ScriptCompilerStub } from './ScriptCompilerStub';
-import { LanguageSyntaxStub } from './LanguageSyntaxStub';
 import { IScriptCompiler } from '@/application/Parser/Script/Compiler/IScriptCompiler';
 import { ILanguageSyntax } from '@/domain/ScriptCode';
+import { ScriptCompilerStub } from './ScriptCompilerStub';
+import { LanguageSyntaxStub } from './LanguageSyntaxStub';

 export class CategoryCollectionParseContextStub implements ICategoryCollectionParseContext {
    public compiler: IScriptCompiler = new ScriptCompilerStub();
--- a/tests/unit/stubs/CategoryCollectionStateStub.ts
+++ b/tests/unit/stubs/CategoryCollectionStateStub.ts
@@ -0,0 +1,30 @@
+import { IApplicationCode } from '@/application/Context/State/Code/IApplicationCode';
+import { IUserFilter } from '@/application/Context/State/Filter/IUserFilter';
+import { ICategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { CategoryCollectionStub } from './CategoryCollectionStub';
+import { UserSelectionStub } from './UserSelectionStub';
+import { UserFilterStub } from './UserFilterStub';
+import { ApplicationCodeStub } from './ApplicationCodeStub';
+import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
+import { IScript } from '@/domain/IScript';
+import { CategoryStub } from './CategoryStub';
+
+export class CategoryCollectionStateStub implements ICategoryCollectionState {
+    public readonly code: IApplicationCode = new ApplicationCodeStub();
+    public readonly filter: IUserFilter = new UserFilterStub();
+    public readonly os = OperatingSystem.Windows;
+    public readonly collection: CategoryCollectionStub;
+    public readonly selection: UserSelectionStub;
+    constructor(readonly allScripts: IScript[]) {
+        this.selection = new UserSelectionStub(allScripts);
+        this.collection = new CategoryCollectionStub()
+            .withOs(this.os)
+            .withTotalScripts(this.allScripts.length)
+            .withAction(new CategoryStub(0).withScripts(...allScripts));
+    }
+    public withSelectedScripts(initialScripts: readonly SelectedScript[]) {
+        this.selection.withSelectedScripts(initialScripts);
+        return this;
+    }
+}
--- a/tests/unit/stubs/CategoryCollectionStub.ts
+++ b/tests/unit/stubs/CategoryCollectionStub.ts
@@ -1,10 +1,11 @@
-import { ScriptingDefinitionStub } from './ScriptingDefinitionStub';
 import { OperatingSystem } from '@/domain/OperatingSystem';
-import { ScriptStub } from './ScriptStub';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 import { IScript } from '@/domain/IScript';
 import { ICategory } from '@/domain/ICategory';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
+import { ScriptStub } from './ScriptStub';
+import { ScriptingDefinitionStub } from './ScriptingDefinitionStub';
+import { RecommendationLevel } from '@/domain/RecommendationLevel';

 export class CategoryCollectionStub implements ICategoryCollection {
    public scripting: IScriptingDefinition = new ScriptingDefinitionStub();
@@ -36,14 +37,16 @@ export class CategoryCollectionStub implements ICategoryCollection {
    }

    public findCategory(categoryId: number): ICategory {
-        return this.getAllCategories().find(
-            (category) => category.id === categoryId);
+        return this.getAllCategories()
+            .find((category) => category.id === categoryId);
    }
-    public getScriptsByLevel(): readonly IScript[] {
-        throw new Error('Method not implemented: getScriptsByLevel');
+    public getScriptsByLevel(level: RecommendationLevel): readonly IScript[] {
+        return this.getAllScripts()
+            .filter((script) => script.level !== undefined && script.level <= level);
    }
    public findScript(scriptId: string): IScript {
-        return this.getAllScripts().find((script) => scriptId === script.id);
+        return this.getAllScripts()
+            .find((script) => scriptId === script.id);
    }
    public getAllScripts(): ReadonlyArray<IScript> {
        const scripts = [];
@@ -79,9 +82,7 @@ function getSubCategoriesRecursively(category: ICategory): ReadonlyArray<ICatego
 function getScriptsRecursively(category: ICategory): ReadonlyArray<IScript> {
    const categoryScripts = [];
    if (category.scripts) {
-        for (const script of category.scripts) {
-            categoryScripts.push(script);
-        }
+        categoryScripts.push(...category.scripts);
    }
    if (category.subCategories) {
        for (const subCategory of category.subCategories) {
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
undergroundwires	b25b8cc805	fix vue warning for undefined property during render currentOs is not recognized as reactive property as it's set to "undefined". JavaScript does not accept "undefined" as valid value to initialize. A property needs to be initialized with a non-undefined value to become reactive in a class-based component. Otherwise Vue warns: Property or method "currentOs" is not defined on the instance but referenced during render.	2021-04-19 18:21:06 +02:00
Marc05	8141a01ef7	fix typo and dead URL in Windows scripts (#70 ) Co-authored-by: Marc05 <git@marc05.net>	2021-04-18 19:12:50 +02:00
undergroundwires	a2f10857e2	fix script revert activating recommendation level Reverting any single of the scripts from standard recommendation pool shows "Standard" selection as selected which is wrong. This commit fixes it, refactors selection handling in a separate class and it also adds missing tests. It removes UserSelection.totalSelected propertty in favor of using UserSelection.selectedScripts.length to provide unified way of accessing the information.	2021-04-17 14:34:29 +01:00
undergroundwires	aea04e5f7c	document chromium warning for policy changes Chromium shows "Your browser is managed" or "Your browser is managed by an organization" warnings when its behavior is manipulated using policies. This message confuses some users, so the commit marks this behavior to let users know why the box appears. Read more: - https://chromium.googlesource.com/chromium/src/+/refs/tags/92.0.4475.1/chrome/browser/ui/managed_ui.cc#67 - https://support.google.com/chrome/thread/3262871	2021-04-16 17:56:31 +02:00
undergroundwires	60c80611ea	add module alias '@tests/' Alias would remove unnecessary repetitions and less relative paths make changes easier when moving around files. This commit cleans also up some relative paths ('../../../') by using the alias and orders imports. It updates both path alias in tsconfig and module alias in Vue CLI's bundler (vuejs/vue-cli#2398).	2021-04-15 18:34:40 +02:00
undergroundwires	b1ed3ce55f	document breaking behavior in script name #64 Removing Cloud Experience Hosting app breaks Microsoft cloud and corporate sign in. It's now documented more cleary in the name of the script.	2021-04-14 15:44:22 +01:00
undergroundwires	040ed2701c	improve disabling ads and marketing #65 This commit documents the behavior better with more granularity of choice and also adds options to revert the code.	2021-04-13 16:39:44 +01:00
undergroundwires	00d8e551db	refactor extra code, duplicates, complexity - refactor array equality check and add tests - remove OperatingSystem.Unknown causing extra logic, return undefined instead - refactor enum validation to share same logic - refactor scripting language factories to share same logic - refactor too many args in runCodeAsync - refactor ScriptCode constructor to reduce complexity - fix writing useless write to member object since another property write always override it	2021-04-11 14:37:02 +01:00
dependabot[bot]	3e9c99f5f8	Bump y18n from 3.2.1 to 3.2.2 (#66 ) Bumps [y18n](https://github.com/yargs/y18n) from 3.2.1 to 3.2.2. - [Release notes](https://github.com/yargs/y18n/releases) - [Changelog](https://github.com/yargs/y18n/blob/master/CHANGELOG.md) - [Commits](https://github.com/yargs/y18n/commits) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-04-06 20:29:15 +02:00
undergroundwires	02bdc4cf04	fix desktop initial window size being bigger than current display size on smaller Linux/Windows screens	2021-04-05 14:31:31 +01:00
undergroundwires	5c43965f0b	in CI/CD, run other tests/check even if one of them fails	2021-03-28 14:26:20 +01:00
dependabot[bot]	b2376ecc30	Bump elliptic from 6.5.3 to 6.5.4 (#62 ) Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.3 to 6.5.4. - [Release notes](https://github.com/indutny/elliptic/releases) - [Commits](https://github.com/indutny/elliptic/compare/v6.5.3...v6.5.4) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-03-27 17:15:30 +01:00
undergroundwires-bot	aeaa6deeb4	⬆️ bump everywhere to 0.10.1	2021-03-26 14:57:03 +00:00