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feat(effects): use provideMockActions outside of the TestBed #2762

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59 changes: 59 additions & 0 deletions modules/effects/testing/spec/mock_actions.spec.ts
@@ -0,0 +1,59 @@
import { of } from 'rxjs';
import { TestBed } from '@angular/core/testing';
import { provideMockActions } from '@ngrx/effects/testing';
import { Actions } from '@ngrx/effects';
import { Injector } from '@angular/core';

describe('Mock Actions', () => {
describe('with TestBed', () => {
it('should provide Actions from source', (done) => {
TestBed.configureTestingModule({
providers: [provideMockActions(of({ type: 'foo' }))],
});

const actions$ = TestBed.inject(Actions);
actions$.subscribe((action) => {
expect(action.type).toBe('foo');
done();
});
});

it('should provide Actions from factory', (done) => {
TestBed.configureTestingModule({
providers: [provideMockActions(() => of({ type: 'bar' }))],
});

const actions$ = TestBed.inject(Actions);
actions$.subscribe((action) => {
expect(action.type).toBe('bar');
done();
});
});
});

describe('with Injector', () => {
it('should provide Actions from source', (done) => {
const injector = Injector.create({
providers: [provideMockActions(of({ type: 'foo' }))],
});

const actions$ = injector.get(Actions);
actions$.subscribe((action) => {
expect(action.type).toBe('foo');
done();
});
});

it('should provide Actions from factory', (done) => {
const injector = Injector.create({
providers: [provideMockActions(() => of({ type: 'bar' }))],
});

const actions$ = injector.get(Actions);
actions$.subscribe((action) => {
expect(action.type).toBe('bar');
done();
});
});
});
});
68 changes: 64 additions & 4 deletions modules/effects/testing/src/testing.ts
@@ -1,12 +1,71 @@
import { Provider } from '@angular/core';
import { FactoryProvider } from '@angular/core';
import { Actions } from '@ngrx/effects';
import { defer, Observable } from 'rxjs';

export function provideMockActions(source: Observable<any>): Provider;
export function provideMockActions(factory: () => Observable<any>): Provider;
/**
* @description
* Creates mock actions provider.
*
* @param source Actions' source
*/
export function provideMockActions(source: Observable<any>): FactoryProvider;
/**
* @description
* Creates mock actions provider.
*
* @param factory Actions' source creation function
*
* @usageNotes
*
* **With `TestBed.configureTestingModule`**
*
* ```ts
* describe('Books Effects', () => {
* let actions$: Observable<any>;
* let effects: BooksEffects;
*
* beforeEach(() => {
* TestBed.configureTestingModule({
* providers: [
* provideMockActions(() => actions$),
* BooksEffects,
* ],
* });
*
* actions$ = TestBed.inject(Actions);
* effects = TestBed.inject(BooksEffects);
* });
* });
* ```
*
* **With `Injector.create`**
*
* ```ts
* describe('Counter Effects', () => {
* let injector: Injector;
* let actions$: Observable<any>;
* let effects: CounterEffects;
*
* beforeEach(() => {
* injector = Injector.create({
* providers: [
* provideMockActions(() => actions$),
* CounterEffects,
* ],
* });
*
* actions$ = injector.get(Actions);
* effects = injector.get(CounterEffects);
* });
* });
* ```
*/
export function provideMockActions(
factory: () => Observable<any>
): FactoryProvider;
export function provideMockActions(
factoryOrSource: (() => Observable<any>) | Observable<any>
): Provider {
): FactoryProvider {
return {
provide: Actions,
useFactory: (): Observable<any> => {
Expand All @@ -16,5 +75,6 @@ export function provideMockActions(

return new Actions(factoryOrSource);
},
deps: [],
};
}