2016-06-23 12:47:54 -04:00
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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2016-08-19 15:51:01 -04:00
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import {CommonModule} from '@angular/common';
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2016-08-02 18:53:34 -04:00
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import {Component, ContentChildren, Directive, QueryList, TemplateRef} from '@angular/core';
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2016-08-15 16:52:57 -04:00
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import {TestBed, async} from '@angular/core/testing';
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2016-08-02 18:53:34 -04:00
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import {expect} from '@angular/platform-browser/testing/matchers';
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2016-04-11 11:47:28 -04:00
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export function main() {
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describe('insert', () => {
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beforeEach(() => {
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TestBed.configureTestingModule(
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{declarations: [TestComponent, CaptureTplRefs], imports: [CommonModule]});
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});
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it('should do nothing if templateRef is null', async(() => {
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var template = `<template [ngTemplateOutlet]="null"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('');
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}));
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it('should insert content specified by TemplateRef', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template>foo</template></tpl-refs><template [ngTemplateOutlet]="currentTplRef"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('');
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('foo');
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}));
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it('should clear content if TemplateRef becomes null', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template>foo</template></tpl-refs><template [ngTemplateOutlet]="currentTplRef"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('foo');
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fixture.componentInstance.currentTplRef = null;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('');
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}));
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it('should swap content if TemplateRef changes', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template>foo</template><template>bar</template></tpl-refs><template [ngTemplateOutlet]="currentTplRef"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('foo');
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fixture.componentInstance.currentTplRef = refs.tplRefs.last;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('bar');
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}));
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it('should display template if context is null', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template>foo</template></tpl-refs><template [ngTemplateOutlet]="currentTplRef" [ngOutletContext]="null"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('');
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('foo');
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}));
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it('should reflect initial context and changes', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template let-foo="foo"><span>{{foo}}</span></template></tpl-refs><template [ngTemplateOutlet]="currentTplRef" [ngOutletContext]="context"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.detectChanges();
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expect(fixture.debugElement.nativeElement).toHaveText('bar');
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fixture.componentInstance.context.foo = 'alter-bar';
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fixture.detectChanges();
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expect(fixture.debugElement.nativeElement).toHaveText('alter-bar');
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}));
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it('should reflect user defined $implicit property in the context', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template let-ctx><span>{{ctx.foo}}</span></template></tpl-refs><template [ngTemplateOutlet]="currentTplRef" [ngOutletContext]="context"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.componentInstance.context = {$implicit: fixture.componentInstance.context};
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fixture.detectChanges();
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expect(fixture.debugElement.nativeElement).toHaveText('bar');
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}));
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it('should reflect context re-binding', async(() => {
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var template =
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`<tpl-refs #refs="tplRefs"><template let-shawshank="shawshank"><span>{{shawshank}}</span></template></tpl-refs><template [ngTemplateOutlet]="currentTplRef" [ngOutletContext]="context"></template>`;
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TestBed.overrideComponent(TestComponent, {set: {template: template}});
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let fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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var refs = fixture.debugElement.children[0].references['refs'];
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fixture.componentInstance.currentTplRef = refs.tplRefs.first;
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fixture.componentInstance.context = {shawshank: 'brooks'};
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fixture.detectChanges();
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expect(fixture.debugElement.nativeElement).toHaveText('brooks');
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fixture.componentInstance.context = {shawshank: 'was here'};
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fixture.detectChanges();
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expect(fixture.debugElement.nativeElement).toHaveText('was here');
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}));
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});
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}
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@Directive({selector: 'tpl-refs', exportAs: 'tplRefs'})
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class CaptureTplRefs {
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@ContentChildren(TemplateRef) tplRefs: QueryList<TemplateRef<any>>;
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}
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@Component({selector: 'test-cmp', template: ''})
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class TestComponent {
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currentTplRef: TemplateRef<any>;
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context: any = {foo: 'bar'};
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}
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