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

  describe('CompileMetadata', () => {
    var fullTypeMeta: CompileTypeMetadata;
    var fullTemplateMeta: CompileTemplateMetadata;
    var fullDirectiveMeta: CompileDirectiveMetadata;

    beforeEach(() => {
      var diDep = new CompileDiDependencyMetadata({
        isAttribute: true,
        isSelf: true,
        isHost: true,
        isSkipSelf: true,
        isOptional: true,
        token: new CompileTokenMetadata({value: 'someToken'}),
        query: new CompileQueryMetadata({
          selectors: [new CompileTokenMetadata({value: 'one'})],
          descendants: true,
          first: true,
          propertyName: 'one'
        }),
        viewQuery: new CompileQueryMetadata({
          selectors: [new CompileTokenMetadata({value: 'one'})],
          descendants: true,
          first: true,
          propertyName: 'one'
        })
      });

      fullTypeMeta = new CompileTypeMetadata(
          {name: 'SomeType', moduleUrl: 'someUrl', isHost: true, diDeps: [diDep]});
      fullTemplateMeta = new CompileTemplateMetadata({
        encapsulation: ViewEncapsulation.Emulated,
        template: '<a></a>',
        templateUrl: 'someTemplateUrl',
        styles: ['someStyle'],
        styleUrls: ['someStyleUrl'],
        ngContentSelectors: ['*'],
        baseUrl: 'someBaseUrl'
      });
      fullDirectiveMeta = CompileDirectiveMetadata.create({
        selector: 'someSelector',
        isComponent: true,
        type: fullTypeMeta,
        template: fullTemplateMeta,
        changeDetection: ChangeDetectionStrategy.Default,
        inputs: ['someProp'],
        outputs: ['someEvent'],
        host: {'(event1)': 'handler1', '[prop1]': 'expr1', 'attr1': 'attrValue2'},
        lifecycleHooks: [LifecycleHooks.OnChanges],
        providers: [
          new CompileProviderMetadata({
            token: new CompileTokenMetadata({value: 'token'}),
            multi: true,
            useClass: fullTypeMeta,
            useExisting: new CompileTokenMetadata({
              identifier: new CompileIdentifierMetadata({name: 'someName'}),
              identifierIsInstance: true
            }),
            useFactory: new CompileFactoryMetadata({name: 'someName', diDeps: [diDep]}),
            useValue: 'someValue',
          })
        ],
        viewProviders: [
          new CompileProviderMetadata({
            token: new CompileTokenMetadata({value: 'token'}),
            useClass: fullTypeMeta,
            useExisting: new CompileTokenMetadata(
                {identifier: new CompileIdentifierMetadata({name: 'someName'})}),
            useFactory: new CompileFactoryMetadata({name: 'someName', diDeps: [diDep]}),
            useValue: 'someValue'
          })
        ],
        queries: [
          new CompileQueryMetadata({
            selectors: [new CompileTokenMetadata({value: 'selector'})],
            descendants: true,
            first: false,
            propertyName: 'prop',
            read: new CompileTokenMetadata({value: 'readToken'})
          })
        ],
        viewQueries: [
          new CompileQueryMetadata({
            selectors: [new CompileTokenMetadata({value: 'selector'})],
            descendants: true,
            first: false,
            propertyName: 'prop',
            read: new CompileTokenMetadata({value: 'readToken'})
          })
        ]
      });

    });

    describe('CompileIdentifierMetadata', () => {
      it('should serialize with full data', () => {
        let full = new CompileIdentifierMetadata(
            {name: 'name', moduleUrl: 'module', value: ['one', ['two']]});
        expect(CompileIdentifierMetadata.fromJson(full.toJson())).toEqual(full);
      });

//.........这里部分代码省略.........