test(ivy): move content projection tests to acceptance (#30357)
Moves all manual `render3` content projection tests that use the `ɵɵelementProperty` to acceptance tests. Additionally a few other content projection tests were moved over to acceptance. Eventually we'll be able to move all remaining content projection tests to acceptance. PR Close #30357
This commit is contained in:
Paul Gschwendtner
committed by
Alex Rickabaugh
Alex Rickabaugh
parent
24e172d779
commit
1f2b39ad7d
@ -6,11 +6,393 @@
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* found in the LICENSE file at https://angular.io/license
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*/
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import {ChangeDetectorRef, Component, Directive} from '@angular/core';
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import {CommonModule} from '@angular/common';
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import {ChangeDetectorRef, Component, Directive, TemplateRef, ViewChild, ViewContainerRef} from '@angular/core';
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import {Input} from '@angular/core/src/metadata';
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import {TestBed} from '@angular/core/testing';
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import {By} from '@angular/platform-browser';
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import {expect} from '@angular/platform-browser/testing/src/matchers';
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describe('projection', () => {
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function getElementHtml(element: HTMLElement) {
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return element.innerHTML.replace(/<!--(\W|\w)*?-->/g, '')
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.replace(/\sng-reflect-\S*="[^"]*"/g, '');
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}
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it('should project content', () => {
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@Component({selector: 'child', template: `<div><ng-content></ng-content></div>`})
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class Child {
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}
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@Component({selector: 'parent', template: '<child>content</child>'})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML).toBe(`<child><div>content</div></child>`);
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});
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it('should project content when <ng-content> is at a template root', () => {
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@Component({
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selector: 'child',
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template: '<ng-content></ng-content>',
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})
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class Child {
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}
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@Component({
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selector: 'parent',
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template: '<child>content</child>',
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML).toBe(`<child>content</child>`);
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});
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it('should project content with siblings', () => {
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@Component({selector: 'child', template: '<ng-content></ng-content>'})
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class Child {
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}
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@Component({selector: 'parent', template: `<child>before<div>content</div>after</child>`})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML).toBe(`<child>before<div>content</div>after</child>`);
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});
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it('should be able to re-project content', () => {
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@Component({selector: 'grand-child', template: `<div><ng-content></ng-content></div>`})
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class GrandChild {
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}
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@Component(
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{selector: 'child', template: `<grand-child><ng-content></ng-content></grand-child>`})
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class Child {
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}
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@Component({
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selector: 'parent',
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template: `<child><b>Hello</b>World!</child>`,
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child, GrandChild]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML)
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.toBe('<child><grand-child><div><b>Hello</b>World!</div></grand-child></child>');
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});
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it('should project components', () => {
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@Component({
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selector: 'child',
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template: `<div><ng-content></ng-content></div>`,
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})
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class Child {
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}
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@Component({
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selector: 'projected-comp',
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template: 'content',
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})
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class ProjectedComp {
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}
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@Component({selector: 'parent', template: `<child><projected-comp></projected-comp></child>`})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child, ProjectedComp]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML)
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.toBe('<child><div><projected-comp>content</projected-comp></div></child>');
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});
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it('should project components that have their own projection', () => {
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@Component({selector: 'child', template: `<div><ng-content></ng-content></div>`})
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class Child {
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}
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@Component({selector: 'projected-comp', template: `<p><ng-content></ng-content></p>`})
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class ProjectedComp {
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}
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@Component({
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selector: 'parent',
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template: `
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<child>
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<projected-comp><div>Some content</div>Other content</projected-comp>
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</child>`,
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child, ProjectedComp]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(fixture.nativeElement.innerHTML)
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.toBe(
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`<child><div><projected-comp><p><div>Some content</div>Other content</p></projected-comp></div></child>`);
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});
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it('should project into dynamic views (with createEmbeddedView)', () => {
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@Component({
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selector: 'child',
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template: `Before-<ng-template [ngIf]="showing"><ng-content></ng-content></ng-template>-After`
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})
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class Child {
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showing = false;
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}
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@Component({selector: 'parent', template: `<child><div>A</div>Some text</child>`})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child], imports: [CommonModule]});
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const fixture = TestBed.createComponent(Parent);
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const childDebugEl = fixture.debugElement.query(By.directive(Child));
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const childInstance = childDebugEl.injector.get(Child);
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const childElement = childDebugEl.nativeElement as HTMLElement;
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childInstance.showing = true;
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fixture.detectChanges();
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expect(getElementHtml(childElement)).toBe(`Before-<div>A</div>Some text-After`);
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childInstance.showing = false;
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fixture.detectChanges();
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expect(getElementHtml(childElement)).toBe(`Before--After`);
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childInstance.showing = true;
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fixture.detectChanges();
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expect(getElementHtml(childElement)).toBe(`Before-<div>A</div>Some text-After`);
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});
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it('should project into dynamic views with specific selectors', () => {
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@Component({
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selector: 'child',
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template: `
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<ng-content></ng-content>
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Before-
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<ng-template [ngIf]="showing">
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<ng-content select="div"></ng-content>
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</ng-template>
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-After`
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})
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class Child {
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showing = false;
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}
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@Component({
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selector: 'parent',
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template: `
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<child>
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<div>A</div>
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<span>B</span>
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</child>
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`
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child], imports: [CommonModule]});
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const fixture = TestBed.createComponent(Parent);
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const childDebugEl = fixture.debugElement.query(By.directive(Child));
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const childInstance = childDebugEl.injector.get(Child);
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childInstance.showing = true;
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toBe('<child><span>B</span> Before- <div>A</div> -After</child>');
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childInstance.showing = false;
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toBe('<child><span>B</span> Before- -After</child>');
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childInstance.showing = true;
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toBe('<child><span>B</span> Before- <div>A</div> -After</child>');
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});
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it('should project if <ng-content> is in a template that has different declaration/insertion points',
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() => {
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@Component(
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{selector: 'comp', template: `<ng-template><ng-content></ng-content></ng-template>`})
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class Comp {
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@ViewChild(TemplateRef) template !: TemplateRef<any>;
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}
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@Directive({selector: '[trigger]'})
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class Trigger {
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@Input() trigger !: Comp;
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constructor(public vcr: ViewContainerRef) {}
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open() { this.vcr.createEmbeddedView(this.trigger.template); }
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}
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@Component({
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selector: 'parent',
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template: `
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<button [trigger]="comp"></button>
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<comp #comp>Some content</comp>
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`
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Trigger, Comp]});
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const fixture = TestBed.createComponent(Parent);
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const trigger = fixture.debugElement.query(By.directive(Trigger)).injector.get(Trigger);
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement)).toBe(`<button></button><comp></comp>`);
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trigger.open();
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expect(getElementHtml(fixture.nativeElement))
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.toBe(`<button></button>Some content<comp></comp>`);
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});
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// https://stackblitz.com/edit/angular-ceqmnw?file=src%2Fapp%2Fapp.component.ts
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it('should project nodes into the last ng-content unrolled by ngFor', () => {
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@Component({
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selector: 'child',
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template:
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`<div *ngFor="let item of [1, 2]; let i = index">({{i}}):<ng-content></ng-content></div>`
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})
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class Child {
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}
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@Component({selector: 'parent', template: `<child>content</child>`})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Parent, Child], imports: [CommonModule]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toBe('<child><div>(0):</div><div>(1):content</div></child>');
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});
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it('should handle projected containers inside other containers', () => {
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@Component({selector: 'nested-comp', template: `<div>Child content</div>`})
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class NestedComp {
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}
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@Component({
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selector: 'root-comp',
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template: `<ng-content></ng-content>`,
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})
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class RootComp {
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}
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@Component({
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selector: 'my-app',
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template: `
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<root-comp>
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<ng-container *ngFor="let item of items; last as last">
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<nested-comp *ngIf="!last"></nested-comp>
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</ng-container>
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</root-comp>
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`
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})
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class MyApp {
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items = [1, 2];
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}
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TestBed.configureTestingModule(
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{declarations: [MyApp, RootComp, NestedComp], imports: [CommonModule]});
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const fixture = TestBed.createComponent(MyApp);
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fixture.detectChanges();
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// expecting # of divs to be (items.length - 1), since last element is filtered out by *ngIf,
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// this applies to all other assertions below
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expect(fixture.nativeElement.querySelectorAll('div').length).toBe(1);
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fixture.componentInstance.items = [3, 4, 5];
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fixture.detectChanges();
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expect(fixture.nativeElement.querySelectorAll('div').length).toBe(2);
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fixture.componentInstance.items = [6, 7, 8, 9];
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fixture.detectChanges();
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expect(fixture.nativeElement.querySelectorAll('div').length).toBe(3);
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});
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describe('with selectors', () => {
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// https://stackblitz.com/edit/angular-psokum?file=src%2Fapp%2Fapp.module.ts
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it('should project nodes where attribute selector matches a binding', () => {
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@Component({
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selector: 'child',
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template: `<ng-content select="[title]"></ng-content>`,
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})
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class Child {
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}
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@Component({
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selector: 'parent',
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template: `<child><span [title]="'Some title'">Has title</span></child>`
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})
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class Parent {
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}
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TestBed.configureTestingModule({declarations: [Child, Parent]});
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const fixture = TestBed.createComponent(Parent);
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toEqual('<child><span title="Some title">Has title</span></child>');
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});
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it('should match selectors against projected containers', () => {
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@Component(
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{selector: 'child', template: `<span><ng-content select="div"></ng-content></span>`})
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class Child {
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}
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@Component({template: `<child><div *ngIf="value">content</div></child>`})
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class Parent {
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value = false;
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}
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TestBed.configureTestingModule({declarations: [Child, Parent]});
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const fixture = TestBed.createComponent(Parent);
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fixture.componentInstance.value = true;
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fixture.detectChanges();
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expect(getElementHtml(fixture.nativeElement))
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.toEqual('<child><span><div>content</div></span></child>');
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});
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});
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it('should handle projected containers inside other containers', () => {
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@Component({
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selector: 'child-comp', //
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Reference in New Issue
Block a user