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import { ParamMap, ActivatedRouteSnapshot, ActivatedRoute } from '@angular/router';
import { Observable, BehaviorSubject } from 'rxjs';
import { map } from 'rxjs/operators';
export type PartialMock<T> = {
[P in keyof T]?: T[P] | PartialMock<T[P]>;
};
export interface ParamMapCreator { [name: string]: string | string[]; }
export class MockActivatedRouteSnapshot implements PartialMock<ActivatedRouteSnapshot> {
private paramMapInternal: ParamMap;
constructor({ mockParamMap }: { mockParamMap: ParamMapCreator } = { mockParamMap: {} }) {
this.paramMapInternal = {
keys: Object.keys(mockParamMap),
get(name: string): string | null {
const param = mockParamMap[name];
if (typeof param === 'string') {
return param;
} else if (param instanceof Array) {
if (param.length === 0) {
return null;
}
return param[0];
}
return null;
},
getAll(name: string): string[] {
const param = mockParamMap[name];
if (typeof param === 'string') {
return [param];
} else if (param instanceof Array) {
return param;
}
return [];
},
has(name: string): boolean {
return mockParamMap.hasOwnProperty(name);
}
};
}
get paramMap(): ParamMap {
return this.paramMapInternal;
}
}
export class MockActivatedRoute implements PartialMock<ActivatedRoute> {
snapshot$ = new BehaviorSubject<MockActivatedRouteSnapshot>(new MockActivatedRouteSnapshot());
get paramMap(): Observable<ParamMap> {
return this.snapshot$.pipe(map(snapshot => snapshot.paramMap));
}
get snapshot(): MockActivatedRouteSnapshot {
return this.snapshot$.value;
}
pushSnapshot(snapshot: MockActivatedRouteSnapshot) {
this.snapshot$.next(snapshot);
}
pushSnapshotWithParamMap(mockParamMap: ParamMapCreator) {
this.pushSnapshot(new MockActivatedRouteSnapshot({mockParamMap}));
}
}
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