203 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			203 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| import {
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|   AsyncTestCompleter,
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|   beforeEach,
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|   ddescribe,
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|   describe,
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|   el,
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|   expect,
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|   iit,
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|   inject,
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|   IS_DARTIUM,
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|   it,
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|   xit,
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| } from 'angular2/test_lib';
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| 
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| import {DOM} from 'angular2/src/dom/dom_adapter';
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| 
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| import {TestBed} from 'angular2/src/test_lib/test_bed';
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| 
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| import {Component} from 'angular2/src/core/annotations_impl/annotations';
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| import {View} from 'angular2/src/core/annotations_impl/view';
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| 
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| import {NgIf} from 'angular2/src/directives/ng_if';
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| 
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| export function main() {
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|   describe('if directive', () => {
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|     it('should work in a template attribute', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|       var html = '<div><copy-me template="ng-if booleanCondition">hello</copy-me></div>';
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| 
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|       tb.createView(TestComponent, {html: html}).then((view) => {
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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|         async.done();
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|       });
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|     }));
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| 
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|     it('should work in a template element', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|       var html = '<div><template [ng-if]="booleanCondition"><copy-me>hello2</copy-me></template></div>';
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| 
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|       tb.createView(TestComponent, {html: html}).then((view) => {
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('hello2');
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|         async.done();
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|       });
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|     }));
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| 
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|     it('should toggle node when condition changes', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|       var html = '<div><copy-me template="ng-if booleanCondition">hello</copy-me></div>';
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| 
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|       tb.createView(TestComponent, {html: html}).then((view) => {
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|         view.context.booleanCondition = false;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('');
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| 
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|         view.context.booleanCondition = true;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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| 
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|         view.context.booleanCondition = false;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('');
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| 
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|         async.done();
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|       });
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|     }));
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| 
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|     it('should handle nested if correctly', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|       var html = '<div><template [ng-if]="booleanCondition"><copy-me *ng-if="nestedBooleanCondition">hello</copy-me></template></div>';
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| 
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|       tb.createView(TestComponent, {html: html}).then((view) => {
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|         view.context.booleanCondition = false;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('');
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| 
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|         view.context.booleanCondition = true;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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| 
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|         view.context.nestedBooleanCondition = false;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('');
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| 
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|         view.context.nestedBooleanCondition = true;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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| 
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|         view.context.booleanCondition = false;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('');
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| 
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|         async.done();
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|       });
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|     }));
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| 
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|     it('should update several nodes with if', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|       var html =
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|       '<div>' +
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|         '<copy-me template="ng-if numberCondition + 1 >= 2">helloNumber</copy-me>' +
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|         '<copy-me template="ng-if stringCondition == \'foo\'">helloString</copy-me>' +
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|         '<copy-me template="ng-if functionCondition(stringCondition, numberCondition)">helloFunction</copy-me>' +
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|       '</div>';
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| 
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|       tb.createView(TestComponent, {html: html}).then((view) => {
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(3);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('helloNumberhelloStringhelloFunction');
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| 
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|         view.context.numberCondition = 0;
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('helloString');
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| 
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|         view.context.numberCondition = 1;
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|         view.context.stringCondition = "bar";
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|         view.detectChanges();
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|         expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|         expect(DOM.getText(view.rootNodes[0])).toEqual('helloNumber');
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|         async.done();
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|       });
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|     }));
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| 
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| 
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|     if (!IS_DARTIUM) {
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|       it('should not add the element twice if the condition goes from true to true (JS)',
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|         inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|         var html = '<div><copy-me template="ng-if numberCondition">hello</copy-me></div>';
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| 
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|         tb.createView(TestComponent, {html: html}).then((view) => {
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|           view.detectChanges();
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|           expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|           expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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| 
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|           view.context.numberCondition = 2;
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|           view.detectChanges();
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|           expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(1);
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|           expect(DOM.getText(view.rootNodes[0])).toEqual('hello');
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| 
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|           async.done();
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|         });
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|       }));
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| 
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|       it('should not recreate the element if the condition goes from true to true (JS)',
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|         inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|           var html = '<div><copy-me template="ng-if numberCondition">hello</copy-me></div>';
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| 
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|           tb.createView(TestComponent, {html: html}).then((view) => {
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|             view.detectChanges();
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|             DOM.addClass(view.rootNodes[0].childNodes[1], "foo");
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| 
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|             view.context.numberCondition = 2;
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|             view.detectChanges();
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|             expect(DOM.hasClass(view.rootNodes[0].childNodes[1], "foo")).toBe(true);
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| 
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|             async.done();
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|           });
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|       }));
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|     }
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| 
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|     if (IS_DARTIUM) {
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|       it('should not create the element if the condition is not a boolean (DART)',
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|         inject([TestBed, AsyncTestCompleter], (tb, async) => {
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|           var html = '<div><copy-me template="ng-if numberCondition">hello</copy-me></div>';
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| 
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|           tb.createView(TestComponent, {html: html}).then((view) => {
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|             expect(() => view.detectChanges()).toThrowError();
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|             expect(DOM.querySelectorAll(view.rootNodes[0], 'copy-me').length).toEqual(0);
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|             expect(DOM.getText(view.rootNodes[0])).toEqual('');
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|             async.done();
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|           });
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|       }));
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|     }
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| 
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|   });
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| }
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| 
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| @Component({selector: 'test-cmp'})
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| @View({directives: [NgIf]})
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| class TestComponent {
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|   booleanCondition: boolean;
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|   nestedBooleanCondition: boolean;
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|   numberCondition: number;
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|   stringCondition: string;
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|   functionCondition: Function;
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|   constructor() {
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|     this.booleanCondition = true;
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|     this.nestedBooleanCondition = true;
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|     this.numberCondition = 1;
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|     this.stringCondition = "foo";
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|     this.functionCondition = function(s, n){
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|       return s == "foo" && n == 1;
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|     };
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|   }
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| }
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