angular-docs-cn/modules/@angular/compiler/test/directive_lifecycle_spec.dart

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library angular2.test.core.compiler.directive_lifecycle_spec;
import 'package:angular2/testing_internal.dart';
import 'package:angular2/src/compiler/directive_lifecycle_reflector.dart';
import 'package:angular2/src/core/metadata/lifecycle_hooks.dart';
main() {
describe('Create DirectiveMetadata', () {
describe('lifecycle', () {
describe("ngOnChanges", () {
it("should be true when the directive has the ngOnChanges method", () {
expect(hasLifecycleHook(
LifecycleHooks.OnChanges, DirectiveImplementingOnChanges))
.toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(LifecycleHooks.OnChanges, DirectiveNoHooks))
.toBe(false);
});
});
describe("ngOnDestroy", () {
it("should be true when the directive has the ngOnDestroy method", () {
expect(hasLifecycleHook(
LifecycleHooks.OnDestroy, DirectiveImplementingOnDestroy))
.toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(LifecycleHooks.OnDestroy, DirectiveNoHooks))
.toBe(false);
});
});
describe("ngOnInit", () {
it("should be true when the directive has the ngOnInit method", () {
expect(hasLifecycleHook(
LifecycleHooks.OnInit, DirectiveImplementingOnInit)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(LifecycleHooks.OnInit, DirectiveNoHooks))
.toBe(false);
});
});
describe("ngDoCheck", () {
it("should be true when the directive has the ngDoCheck method", () {
expect(hasLifecycleHook(
LifecycleHooks.DoCheck, DirectiveImplementingOnCheck)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(LifecycleHooks.DoCheck, DirectiveNoHooks))
.toBe(false);
});
});
describe("ngAfterContentInit", () {
it("should be true when the directive has the ngAfterContentInit method",
() {
expect(hasLifecycleHook(LifecycleHooks.AfterContentInit,
DirectiveImplementingAfterContentInit)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(
LifecycleHooks.AfterContentInit, DirectiveNoHooks)).toBe(false);
});
});
describe("ngAfterContentChecked", () {
it("should be true when the directive has the ngAfterContentChecked method",
() {
expect(hasLifecycleHook(LifecycleHooks.AfterContentChecked,
DirectiveImplementingAfterContentChecked)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(
LifecycleHooks.AfterContentChecked, DirectiveNoHooks))
.toBe(false);
});
});
describe("ngAfterViewInit", () {
it("should be true when the directive has the ngAfterViewInit method",
() {
expect(hasLifecycleHook(LifecycleHooks.AfterViewInit,
DirectiveImplementingAfterViewInit)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(
LifecycleHooks.AfterViewInit, DirectiveNoHooks)).toBe(false);
});
});
describe("ngAfterViewChecked", () {
it("should be true when the directive has the ngAfterViewChecked method",
() {
expect(hasLifecycleHook(LifecycleHooks.AfterViewChecked,
DirectiveImplementingAfterViewChecked)).toBe(true);
});
it("should be false otherwise", () {
expect(hasLifecycleHook(
LifecycleHooks.AfterViewChecked, DirectiveNoHooks)).toBe(false);
});
});
});
});
}
class DirectiveNoHooks {}
class DirectiveImplementingOnChanges implements OnChanges {
ngOnChanges(_) {}
}
class DirectiveImplementingOnCheck implements DoCheck {
ngDoCheck() {}
}
class DirectiveImplementingOnInit implements OnInit {
ngOnInit() {}
}
class DirectiveImplementingOnDestroy implements OnDestroy {
ngOnDestroy() {}
}
class DirectiveImplementingAfterContentInit implements AfterContentInit {
ngAfterContentInit() {}
}
class DirectiveImplementingAfterContentChecked implements AfterContentChecked {
ngAfterContentChecked() {}
}
class DirectiveImplementingAfterViewInit implements AfterViewInit {
ngAfterViewInit() {}
}
class DirectiveImplementingAfterViewChecked implements AfterViewChecked {
ngAfterViewChecked() {}
}