Move stubs from ./stubs to ./shared/Stubs

Gathers all shared test code in single place.

tests/unit/shared/Stubs/EnumParserStub.ts

@@ -0,0 +1,31 @@
+import { IEnumParser } from '@/application/Common/Enum';
+
+export class EnumParserStub<T> implements IEnumParser<T> {
+  private readonly scenarios =
+  new Array<{ inputName: string, inputValue: string, outputValue: T }>();
+
+  private defaultValue: T;
+
+  public setup(inputName: string, inputValue: string, outputValue: T) {
+    this.scenarios.push({ inputName, inputValue, outputValue });
+    return this;
+  }
+
+  public setupDefaultValue(outputValue: T) {
+    this.defaultValue = outputValue;
+    return this;
+  }
+
+  public parseEnum(value: string, propertyName: string): T {
+    const scenario = this.scenarios.find(
+      (s) => s.inputName === propertyName && s.inputValue === value,
+    );
+    if (scenario) {
+      return scenario.outputValue;
+    }
+    if (this.defaultValue) {
+      return this.defaultValue;
+    }
+    throw new Error('enum parser is not set up');
+  }
+}