angular-docs-cn/modules/angular2/test/directives/non_bindable_spec.js

import {describe, xit, it, expect, beforeEach, ddescribe, iit, el} from 'angular2/test_lib';
import {DOM} from 'angular2/src/facade/dom';
import {Map, MapWrapper} from 'angular2/src/facade/collection';
import {Type, isPresent} from 'angular2/src/facade/lang';
import {Injector} from 'angular2/di';
import {Lexer, Parser, ChangeDetector, dynamicChangeDetection} from 'angular2/change_detection';
import {Compiler, CompilerCache} from 'angular2/src/core/compiler/compiler';
import {DirectiveMetadataReader} from 'angular2/src/core/compiler/directive_metadata_reader';
import {NativeShadowDomStrategy} from 'angular2/src/core/compiler/shadow_dom_strategy';
import {Decorator, Component} from 'angular2/src/core/annotations/annotations';
import {Template} from 'angular2/src/core/annotations/template';
import {TemplateLoader} from 'angular2/src/core/compiler/template_loader';
import {TemplateResolver} from 'angular2/src/core/compiler/template_resolver';
import {NgElement} from 'angular2/src/core/dom/element';
import {NonBindable} from 'angular2/src/directives/non_bindable';

export function main() {
  describe('non-bindable', () => {
    var view, cd, compiler, component, tplResolver;
    beforeEach(() => {
      tplResolver = new FakeTemplateResolver();
      compiler = new Compiler(dynamicChangeDetection, new TemplateLoader(null),
        new DirectiveMetadataReader(), new Parser(new Lexer()), new CompilerCache(),
        new NativeShadowDomStrategy(), tplResolver);
    });

    function createView(pv) {
      component = new TestComponent();
      view = pv.instantiate(null, null);
      view.hydrate(new Injector([]), null, component);
      cd = view.changeDetector;
    }

    function compileWithTemplate(html) {
      var template = new Template({
        inline: html,
        directives: [NonBindable, TestDecorator]
      });
      tplResolver.setTemplate(TestComponent, template);
      return compiler.compile(TestComponent);
    }

    it('should not interpolate children', (done) => {
      var template = '<div>{{text}}<span non-bindable>{{text}}</span></div>';
      compileWithTemplate(template).then((pv) => {
        createView(pv);
        cd.detectChanges();
        expect(DOM.getText(view.nodes[0])).toEqual('foo{{text}}');
        done();
      });
    });

    it('should ignore directives on child nodes', (done) => {
      var template = '<div non-bindable><span id=child test-dec>{{text}}</span></div>';
      compileWithTemplate(template).then((pv) => {
        createView(pv);
        cd.detectChanges();
        var span = DOM.querySelector(view.nodes[0], '#child');
        expect(DOM.hasClass(span, 'compiled')).toBeFalsy();
        done();
      });
    });

    it('should trigger directives on the same node', (done) => {
      var template = '<div><span id=child non-bindable test-dec>{{text}}</span></div>';
      compileWithTemplate(template).then((pv) => {
        createView(pv);
        cd.detectChanges();
        var span = DOM.querySelector(view.nodes[0], '#child');
        expect(DOM.hasClass(span, 'compiled')).toBeTruthy();
        done();
      });
    });
  })
}

@Component({selector: 'test-cmp'})
class TestComponent {
  text: string;
  constructor() {
    this.text = 'foo';
  }
}

@Decorator({
  selector: '[test-dec]'
})
class TestDecorator {
  constructor(el: NgElement) {
    DOM.addClass(el.domElement, 'compiled');
  }
}

class FakeTemplateResolver extends TemplateResolver {
  _cmpTemplates: Map;

  constructor() {
    super();
    this._cmpTemplates = MapWrapper.create();
  }

  setTemplate(component: Type, template: Template) {
    MapWrapper.set(this._cmpTemplates, component, template);
  }

  resolve(component: Type): Template {
    var override = MapWrapper.get(this._cmpTemplates, component);

    if (isPresent(override)) {
      return override;
    }

    return super.resolve(component);
  }
}