angular-docs-cn/modules/@angular/compiler/test/metadata_resolver_spec.ts

153 lines
5.4 KiB
TypeScript

import {
ddescribe,
describe,
xdescribe,
it,
iit,
xit,
expect,
beforeEach,
afterEach,
inject,
beforeEachProviders
} from '@angular/core/testing/testing_internal';
import {IS_DART, stringify} from '../src/facade/lang';
import {CompileMetadataResolver} from '../src/metadata_resolver';
import {LifecycleHooks, LIFECYCLE_HOOKS_VALUES} from '@angular/core/src/metadata/lifecycle_hooks';
import {
Component,
Directive,
ViewEncapsulation,
ChangeDetectionStrategy,
OnChanges,
OnInit,
DoCheck,
OnDestroy,
AfterContentInit,
AfterContentChecked,
AfterViewInit,
AfterViewChecked,
SimpleChange,
provide
} from '@angular/core';
import {TEST_PROVIDERS} from './test_bindings';
import {MODULE_SUFFIX} from '@angular/compiler/src/util';
import {PLATFORM_DIRECTIVES} from '@angular/core/src/platform_directives_and_pipes';
import {MalformedStylesComponent} from './metadata_resolver_fixture';
export function main() {
describe('CompileMetadataResolver', () => {
beforeEachProviders(() => TEST_PROVIDERS);
describe('getMetadata', () => {
it('should read metadata',
inject([CompileMetadataResolver], (resolver: CompileMetadataResolver) => {
var meta = resolver.getDirectiveMetadata(ComponentWithEverything);
expect(meta.selector).toEqual('someSelector');
expect(meta.exportAs).toEqual('someExportAs');
expect(meta.isComponent).toBe(true);
expect(meta.type.runtime).toBe(ComponentWithEverything);
expect(meta.type.name).toEqual(stringify(ComponentWithEverything));
expect(meta.lifecycleHooks).toEqual(LIFECYCLE_HOOKS_VALUES);
expect(meta.changeDetection).toBe(ChangeDetectionStrategy.CheckAlways);
expect(meta.inputs).toEqual({'someProp': 'someProp'});
expect(meta.outputs).toEqual({'someEvent': 'someEvent'});
expect(meta.hostListeners).toEqual({'someHostListener': 'someHostListenerExpr'});
expect(meta.hostProperties).toEqual({'someHostProp': 'someHostPropExpr'});
expect(meta.hostAttributes).toEqual({'someHostAttr': 'someHostAttrValue'});
expect(meta.template.encapsulation).toBe(ViewEncapsulation.Emulated);
expect(meta.template.styles).toEqual(['someStyle']);
expect(meta.template.styleUrls).toEqual(['someStyleUrl']);
expect(meta.template.template).toEqual('someTemplate');
expect(meta.template.templateUrl).toEqual('someTemplateUrl');
}));
it('should use the moduleUrl from the reflector if none is given',
inject([CompileMetadataResolver], (resolver: CompileMetadataResolver) => {
var value: string =
resolver.getDirectiveMetadata(ComponentWithoutModuleId).type.moduleUrl;
var expectedEndValue =
IS_DART ? 'test/compiler/metadata_resolver_spec.dart' : './ComponentWithoutModuleId';
expect(value.endsWith(expectedEndValue)).toBe(true);
}));
it('should throw when metadata is incorrectly typed',
inject([CompileMetadataResolver], (resolver: CompileMetadataResolver) => {
if (!IS_DART) {
expect(() => resolver.getDirectiveMetadata(MalformedStylesComponent))
.toThrowError(`Expected 'styles' to be an array of strings.`);
}
}));
});
describe('getViewDirectivesMetadata', () => {
it('should return the directive metadatas',
inject([CompileMetadataResolver], (resolver: CompileMetadataResolver) => {
expect(resolver.getViewDirectivesMetadata(ComponentWithEverything))
.toContain(resolver.getDirectiveMetadata(SomeDirective));
}));
describe("platform directives", () => {
beforeEachProviders(
() => [provide(PLATFORM_DIRECTIVES, {useValue: [ADirective], multi: true})]);
it('should include platform directives when available',
inject([CompileMetadataResolver], (resolver: CompileMetadataResolver) => {
expect(resolver.getViewDirectivesMetadata(ComponentWithEverything))
.toContain(resolver.getDirectiveMetadata(ADirective));
expect(resolver.getViewDirectivesMetadata(ComponentWithEverything))
.toContain(resolver.getDirectiveMetadata(SomeDirective));
}));
});
});
});
}
@Directive({selector: 'a-directive'})
class ADirective {
}
@Directive({selector: 'someSelector'})
class SomeDirective {
}
@Component({selector: 'someComponent', template: ''})
class ComponentWithoutModuleId {
}
@Component({
selector: 'someSelector',
inputs: ['someProp'],
outputs: ['someEvent'],
host: {
'[someHostProp]': 'someHostPropExpr',
'(someHostListener)': 'someHostListenerExpr',
'someHostAttr': 'someHostAttrValue'
},
exportAs: 'someExportAs',
moduleId: 'someModuleId',
changeDetection: ChangeDetectionStrategy.CheckAlways,
template: 'someTemplate',
templateUrl: 'someTemplateUrl',
encapsulation: ViewEncapsulation.Emulated,
styles: ['someStyle'],
styleUrls: ['someStyleUrl'],
directives: [SomeDirective]
})
class ComponentWithEverything implements OnChanges,
OnInit, DoCheck, OnDestroy, AfterContentInit, AfterContentChecked, AfterViewInit,
AfterViewChecked {
ngOnChanges(changes: {[key: string]: SimpleChange}): void {}
ngOnInit(): void {}
ngDoCheck(): void {}
ngOnDestroy(): void {}
ngAfterContentInit(): void {}
ngAfterContentChecked(): void {}
ngAfterViewInit(): void {}
ngAfterViewChecked(): void {}
}