When testing the DOM representation of a @Component, you're able to query its nested elements via its fixture fixture.debugElement.queryAll(By.css('.example')); You can also filter by @Directive fixture.debugElement.queryAll(By.directive(RouterLinkDirectiveStub)); Now, let's say you have an inner @Component NzButtonComponent used like this <button nz-button>Example</button> How can I precisely query for it? There is no By.component(...). Continue reading...
