sinsunsan-ng-bullet-workspace
Version:
Angular library which drastically improves execution time of your component's unit tests. This fork fix a problem in the original ng-bullet #48. Error messages in the test execution
74 lines • 10.1 kB
JavaScript
import { TestBed, getTestBed } from '@angular/core/testing';
/**
* Reconfigures current test suit to prevent angular components re-compilation after every test run.
* Forces angular test bed to re-create zone and all injectable services by directly
* setting _instantiated variable to false after every test run.
* Cleanups all the changes and reverts test bed configuration after suite has finished.
*
* @param configureAction an optional delegate which can be used to configure test bed for the current test suite
* directly in the configureTestSuite call (you don't need extra BeforeAll in this case)
*/
export const configureTestSuite = (configureAction) => {
const testBedApi = getTestBed();
const originReset = TestBed.resetTestingModule;
beforeAll(() => {
TestBed.resetTestingModule();
TestBed.resetTestingModule = () => TestBed;
});
// https://github.com/topnotch48/ng-bullet-workspace/issues/38
if (configureAction) {
beforeAll((done) => {
(async function () {
configureAction();
await TestBed.compileComponents();
}().then(done).catch(done.fail));
});
}
afterEach(() => {
testBedApi._activeFixtures.forEach((fixture) => fixture.destroy());
// reset ViewEngine TestBed
testBedApi._instantiated = false;
// reset Ivy TestBed
testBedApi._testModuleRef = null;
});
afterAll(() => {
TestBed.resetTestingModule = originReset;
TestBed.resetTestingModule();
});
};
/**
* A wrapper class around ComponentFixture, which provides useful accessros:
* component - to access component instance of current the fixture
* element - to access underlying native element of the current component
* detectChanges - to run change detections using current fixture
* resolve - to resolve a type using current fixture's injector
*/
export class TestCtx {
constructor(fixture) {
this.fixture = fixture;
}
get component() { return this.fixture.componentInstance; }
get element() { return this.fixture.debugElement.nativeElement; }
detectChanges() { this.fixture.detectChanges(); }
resolve(component) { return this.fixture.debugElement.injector.get(component); }
}
/**
* Creates TestCtx instance for the Angular Component which is not initialized yet (no ngOnInit called)
* Use case: you can override Component's providers before hooks are called.
*
* @param component - type of component to create instance of
* **/
export const createTestContext = (component) => {
const fixture = TestBed.createComponent(component);
const testCtx = new TestCtx(fixture);
return testCtx;
};
/**Same as @function createTestContext, but waits till fixture becomes stable */
export const createStableTestContext = async (component) => {
const testCtx = createTestContext(component);
testCtx.detectChanges();
await testCtx.fixture.whenStable();
testCtx.detectChanges();
return testCtx;
};
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