angular-docs-cn/modules/angular2/test/compiler/directive_metadata_spec.ts

import {
  AsyncTestCompleter,
  beforeEach,
  ddescribe,
  describe,
  el,
  expect,
  iit,
  inject,
  it,
  xit,
  TestComponentBuilder
} from 'angular2/test_lib';

import {
  CompileDirectiveMetadata,
  CompileTypeMetadata,
  CompileTemplateMetadata
} from 'angular2/src/compiler/directive_metadata';
import {ViewEncapsulation} from 'angular2/src/core/render/api';
import {ChangeDetectionStrategy} from 'angular2/src/core/change_detection';
import {LifecycleHooks} from 'angular2/src/core/compiler/interfaces';

export function main() {
  describe('DirectiveMetadata', () => {
    var fullTypeMeta: CompileTypeMetadata;
    var fullTemplateMeta: CompileTemplateMetadata;
    var fullDirectiveMeta: CompileDirectiveMetadata;

    beforeEach(() => {
      fullTypeMeta = new CompileTypeMetadata({id: 23, name: 'SomeType', moduleId: 'someUrl'});
      fullTemplateMeta = new CompileTemplateMetadata({
        encapsulation: ViewEncapsulation.Emulated,
        template: '<a></a>',
        templateUrl: 'someTemplateUrl',
        styles: ['someStyle'],
        styleUrls: ['someStyleUrl'],
        ngContentSelectors: ['*']
      });
      fullDirectiveMeta = CompileDirectiveMetadata.create({
        selector: 'someSelector',
        isComponent: true,
        dynamicLoadable: true,
        type: fullTypeMeta, template: fullTemplateMeta,
        changeDetection: ChangeDetectionStrategy.Default,
        properties: ['someProp'],
        events: ['someEvent'],
        host: {'(event1)': 'handler1', '[prop1]': 'expr1', 'attr1': 'attrValue2'},
        lifecycleHooks: [LifecycleHooks.OnChanges]
      });

    });

    describe('DirectiveMetadata', () => {
      it('should serialize with full data', () => {
        expect(CompileDirectiveMetadata.fromJson(fullDirectiveMeta.toJson()))
            .toEqual(fullDirectiveMeta);
      });

      it('should serialize with no data', () => {
        var empty = CompileDirectiveMetadata.create();
        expect(CompileDirectiveMetadata.fromJson(empty.toJson())).toEqual(empty);
      });
    });

    describe('TypeMetadata', () => {
      it('should serialize with full data', () => {
        expect(CompileTypeMetadata.fromJson(fullTypeMeta.toJson())).toEqual(fullTypeMeta);
      });

      it('should serialize with no data', () => {
        var empty = new CompileTypeMetadata();
        expect(CompileTypeMetadata.fromJson(empty.toJson())).toEqual(empty);
      });
    });

    describe('TemplateMetadata', () => {
      it('should serialize with full data', () => {
        expect(CompileTemplateMetadata.fromJson(fullTemplateMeta.toJson()))
            .toEqual(fullTemplateMeta);
      });

      it('should serialize with no data', () => {
        var empty = new CompileTemplateMetadata();
        expect(CompileTemplateMetadata.fromJson(empty.toJson())).toEqual(empty);
      });
    });
  });
}