jasmine

问题 So I have a Directive that takes an input: @Directive({ selector: '[my-directive]' }) export class MyDirective { @Input('some-input') public someInput: string; } As you can see, the input should be a string value. Now, I want to write a test for this Directive, and I want to test if the input satisfies the string type: describe('MyDirective', () => { let fixture: ComponentFixture<DummyComponent>; let dummy: DummyComponent; let directive: DebugElement; beforeEach(async(() => { TestBed

问题 What I'd like to do describe('my object', function() { it('has these properties', function() { expect(Object.keys(myObject)).toEqual([ 'property1', 'property2', ... ]); }); }); but of course Object.keys returns an array, which by definition is ordered...I'd prefer to have this test pass regardless of property ordering (which makes sense to me since there is no spec for object key ordering anyway...(at least up to ES5)). How can I verify my object has all the properties it is supposed to have,

问题 What I'd like to do describe('my object', function() { it('has these properties', function() { expect(Object.keys(myObject)).toEqual([ 'property1', 'property2', ... ]); }); }); but of course Object.keys returns an array, which by definition is ordered...I'd prefer to have this test pass regardless of property ordering (which makes sense to me since there is no spec for object key ordering anyway...(at least up to ES5)). How can I verify my object has all the properties it is supposed to have,

问题 I'm trying to write a test for a React component that needs to complete an asynchronous action in its componentWillMount method. componentWillMount calls a function, passed as a prop, which returns a promise, and I mock this function in my test. This works fine, but if a test fails in a call to setImmediate or process.nextTick , the exception isn't handled by Jest and it exits prematurely. Below, you can see I even try to catch this exception, to no avail. How can I use something like

问题 I'm trying to write a test for a React component that needs to complete an asynchronous action in its componentWillMount method. componentWillMount calls a function, passed as a prop, which returns a promise, and I mock this function in my test. This works fine, but if a test fails in a call to setImmediate or process.nextTick , the exception isn't handled by Jest and it exits prematurely. Below, you can see I even try to catch this exception, to no avail. How can I use something like

问题 Given a directive used for Dynamic Component Loading with ViewContainerRef injected: import { Directive, ViewContainerRef } from '@angular/core'; @Directive({ selector: '[fooHost]' }) export class FooDirective { constructor(public viewContainerRef: ViewContainerRef) {} } How would you inject an instance or mock of ViewContainerRef in a unit test: import { FooDirective } from './foo.directive'; describe('FooDirective', () => { it('should create an instance', () => { const directive = new

问题 Given a directive used for Dynamic Component Loading with ViewContainerRef injected: import { Directive, ViewContainerRef } from '@angular/core'; @Directive({ selector: '[fooHost]' }) export class FooDirective { constructor(public viewContainerRef: ViewContainerRef) {} } How would you inject an instance or mock of ViewContainerRef in a unit test: import { FooDirective } from './foo.directive'; describe('FooDirective', () => { it('should create an instance', () => { const directive = new

问题 I have a class in angular8 application with following ngOnit method ngOnInit(): void { this.setCustomizedValues(); this.sub = PubSub.subscribe('highlightEntity', (subId, entityIdentifier: string) => { document.querySelector(entityIdentifier).classList.add('highlight'); setTimeout(() => { document.querySelector(entityIdentifier).classList.remove('highlight'); }, 2000); }); } I have initialised the following test case describe('aComponent', () => { let httpCallerServiceStub = jasmine

问题 I have a class in angular8 application with following ngOnit method ngOnInit(): void { this.setCustomizedValues(); this.sub = PubSub.subscribe('highlightEntity', (subId, entityIdentifier: string) => { document.querySelector(entityIdentifier).classList.add('highlight'); setTimeout(() => { document.querySelector(entityIdentifier).classList.remove('highlight'); }, 2000); }); } I have initialised the following test case describe('aComponent', () => { let httpCallerServiceStub = jasmine

问题 I have a class in angular8 application with following ngOnit method ngOnInit(): void { this.setCustomizedValues(); this.sub = PubSub.subscribe('highlightEntity', (subId, entityIdentifier: string) => { document.querySelector(entityIdentifier).classList.add('highlight'); setTimeout(() => { document.querySelector(entityIdentifier).classList.remove('highlight'); }, 2000); }); } I have initialised the following test case describe('aComponent', () => { let httpCallerServiceStub = jasmine