在Angular中测试cdkConnectedOverlay,可以按照以下步骤进行:
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { OverlayModule } from '@angular/cdk/overlay';
import { TestComponent } from './test.component';
describe('TestComponent', () => {
let component: TestComponent;
let fixture: ComponentFixture<TestComponent>;
beforeEach(async () => {
await TestBed.configureTestingModule({
declarations: [TestComponent],
imports: [OverlayModule],
}).compileComponents();
});
beforeEach(() => {
fixture = TestBed.createComponent(TestComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
it('should create', () => {
expect(component).toBeTruthy();
});
// Add more test cases as needed
});
import { ComponentFixture, TestBed } from '@angular/core/testing';
import { OverlayModule } from '@angular/cdk/overlay';
import { TestComponent } from './test.component';
describe('TestComponent', () => {
let component: TestComponent;
let fixture: ComponentFixture<TestComponent>;
beforeEach(async () => {
await TestBed.configureTestingModule({
declarations: [TestComponent],
imports: [OverlayModule],
}).compileComponents();
});
beforeEach(() => {
fixture = TestBed.createComponent(TestComponent);
component = fixture.componentInstance;
fixture.detectChanges();
});
it('should create', () => {
expect(component).toBeTruthy();
});
it('should open overlay when button is clicked', () => {
const button = fixture.nativeElement.querySelector('button');
button.click();
fixture.detectChanges();
const overlay = document.querySelector('.cdk-overlay-pane');
expect(overlay).toBeTruthy();
});
// Add more test cases as needed
});
在这个示例中,我们首先导入了需要的依赖项,包括OverlayModule和测试组件TestComponent。然后,在测试之前,我们使用TestBed.configureTestingModule()方法配置测试模块,并导入OverlayModule。在每个测试之前,我们创建了测试组件的实例,并调用fixture.detectChanges()来触发变更检测。然后,我们可以编写各种测试用例,例如测试点击按钮时是否打开了overlay。
请注意,这只是一个简单的示例,你可以根据实际情况编写更多的测试用例来覆盖cdkConnectedOverlay的各种使用场景。
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