44d79e2c9a
- Unify test data for nonexistence of an object/string and collection. - Introduce more test through adding missing test data to existing tests. - Improve logic for checking absence of values to match tests. - Add missing tests for absent value validation. - Update documentation to include shared test functionality.
55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
import { OperatingSystem } from '@/domain/OperatingSystem';
|
|
import { IBrowserOsDetector } from './IBrowserOsDetector';
|
|
|
|
export class DetectorBuilder {
|
|
private readonly existingPartsInUserAgent = new Array<string>();
|
|
|
|
private readonly notExistingPartsInUserAgent = new Array<string>();
|
|
|
|
constructor(private readonly os: OperatingSystem) { }
|
|
|
|
public mustInclude(str: string): DetectorBuilder {
|
|
return this.add(str, this.existingPartsInUserAgent);
|
|
}
|
|
|
|
public mustNotInclude(str: string): DetectorBuilder {
|
|
return this.add(str, this.notExistingPartsInUserAgent);
|
|
}
|
|
|
|
public build(): IBrowserOsDetector {
|
|
if (!this.existingPartsInUserAgent.length) {
|
|
throw new Error('Must include at least a part');
|
|
}
|
|
return {
|
|
detect: (agent) => this.detect(agent),
|
|
};
|
|
}
|
|
|
|
private detect(userAgent: string): OperatingSystem {
|
|
if (!userAgent) {
|
|
throw new Error('missing userAgent');
|
|
}
|
|
if (this.existingPartsInUserAgent.some((part) => !userAgent.includes(part))) {
|
|
return undefined;
|
|
}
|
|
if (this.notExistingPartsInUserAgent.some((part) => userAgent.includes(part))) {
|
|
return undefined;
|
|
}
|
|
return this.os;
|
|
}
|
|
|
|
private add(part: string, array: string[]): DetectorBuilder {
|
|
if (!part) {
|
|
throw new Error('part is empty or undefined');
|
|
}
|
|
if (this.existingPartsInUserAgent.includes(part)) {
|
|
throw new Error(`part ${part} is already included as existing part`);
|
|
}
|
|
if (this.notExistingPartsInUserAgent.includes(part)) {
|
|
throw new Error(`part ${part} is already included as not existing part`);
|
|
}
|
|
array.push(part);
|
|
return this;
|
|
}
|
|
}
|