606 lines
19 KiB
TypeScript
606 lines
19 KiB
TypeScript
/**
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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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import {AttributeMarker} from '@angular/compiler/src/core';
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import {setup} from '@angular/compiler/test/aot/test_util';
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import {compile, expectEmit} from './mock_compile';
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describe('compiler compliance: template', () => {
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const angularFiles = setup({
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compileAngular: false,
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compileFakeCore: true,
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compileAnimations: false,
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});
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it('should correctly bind to context in nested template', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: \`
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<ul *ngFor="let outer of items">
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<li *ngFor="let middle of outer.items">
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<div *ngFor="let inner of items"
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(click)="onClick(outer, middle, inner)"
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[title]="format(outer, middle, inner, component)"
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>
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{{format(outer, middle, inner, component)}}
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</div>
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</li>
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</ul>\`
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})
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export class MyComponent {
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component = this;
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format(outer: any, middle: any, inner: any) { }
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onClick(outer: any, middle: any, inner: any) { }
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}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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// The template should look like this (where IDENT is a wild card for an identifier):
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const template = `
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const $c0$ = ["ngFor", "", ${AttributeMarker.SelectOnly}, "ngForOf"];
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const $e0_attrs$ = [${AttributeMarker.SelectOnly}, "title", "click"];
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function MyComponent_ul_0_li_1_div_1_Template(rf, ctx) {
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if (rf & 1) {
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const $s$ = $i0$.ɵgetCurrentView();
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$i0$.ɵelementStart(0, "div", $e0_attrs$);
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$i0$.ɵlistener("click", function MyComponent_ul_0_li_1_div_1_Template_div_click_0_listener($event){
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$i0$.ɵrestoreView($s$);
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const $inner$ = ctx.$implicit;
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const $middle$ = $i0$.ɵnextContext().$implicit;
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const $outer$ = $i0$.ɵnextContext().$implicit;
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const $myComp$ = $i0$.ɵnextContext();
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return $myComp$.onClick($outer$, $middle$, $inner$);
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});
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$i0$.ɵtext(1);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $inner1$ = ctx.$implicit;
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const $middle1$ = $i0$.ɵnextContext().$implicit;
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const $outer1$ = $i0$.ɵnextContext().$implicit;
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const $myComp1$ = $i0$.ɵnextContext();
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$i0$.ɵelementProperty(0, "title", $i0$.ɵbind($myComp1$.format($outer1$, $middle1$, $inner1$, $myComp1$.component)));
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$i0$.ɵtextBinding(1, $i0$.ɵinterpolation1(" ", $myComp1$.format($outer1$, $middle1$, $inner1$, $myComp1$.component), " "));
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}
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}
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function MyComponent_ul_0_li_1_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "li");
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$i0$.ɵtemplate(1, MyComponent_ul_0_li_1_div_1_Template, 2, 2, "div", _c0);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $myComp2$ = $i0$.ɵnextContext(2);
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$i0$.ɵelementProperty(1, "ngForOf", $i0$.ɵbind($myComp2$.items));
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}
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}
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function MyComponent_ul_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "ul");
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$i0$.ɵtemplate(1, MyComponent_ul_0_li_1_Template, 2, 1, "li", _c0);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $outer2$ = ctx.$implicit;
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$i0$.ɵelementProperty(1, "ngForOf", $i0$.ɵbind($outer2$.items));
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}
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}
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// ...
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template:function MyComponent_Template(rf, ctx){
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_ul_0_Template, 2, 1, "ul", _c0);
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}
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if (rf & 2) {
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$i0$.ɵelementProperty(0, "ngForOf", $i0$.ɵbind(ctx.items));
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should support ngFor context variables', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: \`
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<span *ngFor="let item of items; index as i">
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{{ i }} - {{ item }}
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</span>\`
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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const template = `
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const $c0$ = ["ngFor", "", ${AttributeMarker.SelectOnly}, "ngForOf"];
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function MyComponent_span_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "span");
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$i0$.ɵtext(1);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $item$ = ctx.$implicit;
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const $i$ = ctx.index;
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$i0$.ɵtextBinding(1, $i0$.ɵinterpolation2(" ", $i$, " - ", $item$, " "));
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}
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}
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// ...
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template:function MyComponent_Template(rf, ctx){
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_span_0_Template, 2, 2, "span", _c0);
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}
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if (rf & 2) {
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$i0$.ɵelementProperty(0, "ngForOf", $i0$.ɵbind(ctx.items));
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should support ngFor context variables in parent views', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: \`
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<div *ngFor="let item of items; index as i">
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<span *ngIf="showing">
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{{ i }} - {{ item }}
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</span>
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</div>\`
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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const template = `
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const $c0$ = ["ngFor", "", ${AttributeMarker.SelectOnly}, "ngForOf"];
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const $c1$ = [${AttributeMarker.SelectOnly}, "ngIf"];
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function MyComponent_div_0_span_1_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "span");
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$i0$.ɵtext(1);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $div$ = $i0$.ɵnextContext();
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const $i$ = $div$.index;
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const $item$ = $div$.$implicit;
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$i0$.ɵtextBinding(1, $i0$.ɵinterpolation2(" ", $i$, " - ", $item$, " "));
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}
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}
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function MyComponent_div_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "div");
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$i0$.ɵtemplate(1, MyComponent_div_0_span_1_Template, 2, 2, "span", $c1$);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $app$ = $i0$.ɵnextContext();
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$i0$.ɵelementProperty(1, "ngIf", $i0$.ɵbind($app$.showing));
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}
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}
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// ...
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template:function MyComponent_Template(rf, ctx){
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_div_0_Template, 2, 1, "div", $c0$);
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}
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if (rf & 2) {
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$i0$.ɵelementProperty(0, "ngForOf", $i0$.ɵbind(ctx.items));
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should correctly skip contexts as needed', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: \`
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<div *ngFor="let outer of items">
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<div *ngFor="let middle of outer.items">
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<div *ngFor="let inner of middle.items">
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{{ middle.value }} - {{ name }}
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</div>
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</div>
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</div>\`
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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// The template should look like this (where IDENT is a wild card for an identifier):
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const template = `
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const $c0$ = ["ngFor", "", ${AttributeMarker.SelectOnly}, "ngForOf"];
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function MyComponent_div_0_div_1_div_1_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "div");
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$i0$.ɵtext(1);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $middle$ = $i0$.ɵnextContext().$implicit;
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const $myComp$ = $i0$.ɵnextContext(2);
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$i0$.ɵtextBinding(1, $i0$.ɵinterpolation2(" ", $middle$.value, " - ", $myComp$.name, " "));
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}
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}
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function MyComponent_div_0_div_1_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "div");
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$i0$.ɵtemplate(1, MyComponent_div_0_div_1_div_1_Template, 2, 2, "div", _c0);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $middle$ = ctx.$implicit;
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$i0$.ɵelementProperty(1, "ngForOf", $i0$.ɵbind($middle$.items));
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}
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}
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function MyComponent_div_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵelementStart(0, "div");
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$i0$.ɵtemplate(1, MyComponent_div_0_div_1_Template, 2, 1, "div", _c0);
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$i0$.ɵelementEnd();
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}
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if (rf & 2) {
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const $outer$ = ctx.$implicit;
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$i0$.ɵelementProperty(1, "ngForOf", $i0$.ɵbind($outer$.items));
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}
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}
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// ...
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template:function MyComponent_Template(rf, ctx){
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_div_0_Template, 2, 1, "div", _c0);
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}
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if (rf & 2) {
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$i0$.ɵelementProperty(0, "ngForOf", $i0$.ɵbind(ctx.items));
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should support <ng-template>', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: \`
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<ng-template [boundAttr]="b" attr="l">
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some-content
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</ng-template>\`
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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const template = `
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const $c0$ = ["attr", "l", ${AttributeMarker.SelectOnly}, "boundAttr"];
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function MyComponent_ng_template_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵtext(0, " some-content ");
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}
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}
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// ...
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template: function MyComponent_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_ng_template_0_Template, 1, 0, "ng-template", $c0$);
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}
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if (rf & 2) {
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$i0$.ɵelementProperty(0, "boundAttr", $i0$.ɵbind(ctx.b));
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should support local refs on <ng-template>', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: '<ng-template #foo>some-content</ng-template>',
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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const template = `
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const $t0_refs$ = ["foo", ""];
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function MyComponent_ng_template_0_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵtext(0, "some-content");
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}
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}
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// ...
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template: function MyComponent_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_ng_template_0_Template, 1, 0, "ng-template", null, $t0_refs$, $i0$.ɵtemplateRefExtractor);
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should support directive outputs on <ng-template>', () => {
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const files = {
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app: {
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'spec.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'my-component',
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template: '<ng-template (outDirective)="$event.doSth()"></ng-template>',
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})
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export class MyComponent {}
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@NgModule({declarations: [MyComponent]})
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export class MyModule {}
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`
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}
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};
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const template = `
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const $t0_attrs$ = [${AttributeMarker.SelectOnly}, "outDirective"];
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function MyComponent_ng_template_0_Template(rf, ctx) { }
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// ...
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template: function MyComponent_Template(rf, ctx) {
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if (rf & 1) {
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$i0$.ɵtemplate(0, MyComponent_ng_template_0_Template, 0, 0, "ng-template", $t0_attrs$);
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$i0$.ɵlistener("outDirective", function MyComponent_Template_ng_template_outDirective_0_listener($event) { return $event.doSth(); });
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}
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}`;
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const result = compile(files, angularFiles);
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expectEmit(result.source, template, 'Incorrect template');
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});
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it('should create unique template function names even for similar nested template structures',
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() => {
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const files = {
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app: {
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'spec1.ts': `
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import {Component, NgModule} from '@angular/core';
|
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@Component({
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selector: 'a-component',
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template: \`
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<div *ngFor="let item of items">
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<p *ngIf="item < 10">less than 10</p>
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<p *ngIf="item < 10">less than 10</p>
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</div>
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<div *ngFor="let item of items">
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<p *ngIf="item > 10">more than 10</p>
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</div>
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\`,
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})
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export class AComponent {
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items = [4, 2];
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}
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@NgModule({declarations: [AComponent]})
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export class AModule {}
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`,
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'spec2.ts': `
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import {Component, NgModule} from '@angular/core';
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@Component({
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selector: 'b-component',
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template: \`
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<div *ngFor="let item of items">
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<ng-container *ngFor="let subitem of item.subitems">
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<p *ngIf="subitem < 10">less than 10</p>
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<p *ngIf="subitem < 10">less than 10</p>
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</ng-container>
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<ng-container *ngFor="let subitem of item.subitems">
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<p *ngIf="subitem < 10">less than 10</p>
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</ng-container>
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</div>
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<div *ngFor="let item of items">
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<ng-container *ngFor="let subitem of item.subitems">
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<p *ngIf="subitem > 10">more than 10</p>
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</ng-container>
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</div>
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\`,
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})
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export class BComponent {
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items = [
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{subitems: [1, 3]},
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{subitems: [3, 7]},
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];
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}
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@NgModule({declarations: [BComponent]})
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export class BModule {}
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`,
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},
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};
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const result = compile(files, angularFiles);
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const allTemplateFunctionsNames = (result.source.match(/function ([^\s(]+)/g) || [])
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.map(x => x.slice(9))
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.filter(x => x.includes('Template'))
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.sort();
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const uniqueTemplateFunctionNames = Array.from(new Set(allTemplateFunctionsNames));
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// Expected template function:
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// - 5 for AComponent's template.
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// - 9 for BComponent's template.
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// - 2 for the two components.
|
|
expect(allTemplateFunctionsNames.length).toBe(5 + 9 + 2);
|
|
expect(allTemplateFunctionsNames).toEqual(uniqueTemplateFunctionNames);
|
|
});
|
|
|
|
it('should create unique listener function names even for similar nested template structures',
|
|
() => {
|
|
const files = {
|
|
app: {
|
|
'spec.ts': `
|
|
import {Component, NgModule} from '@angular/core';
|
|
|
|
@Component({
|
|
selector: 'my-component',
|
|
template: \`
|
|
<div *ngFor="let item of items">
|
|
<p (click)="$event">{{ item }}</p>
|
|
<p (click)="$event">{{ item }}</p>
|
|
</div>
|
|
<div *ngFor="let item of items">
|
|
<p (click)="$event">{{ item }}</p>
|
|
</div>
|
|
\`,
|
|
})
|
|
export class MyComponent {
|
|
items = [4, 2];
|
|
}
|
|
|
|
@NgModule({declarations: [MyComponent]})
|
|
export class MyModule {}
|
|
`,
|
|
},
|
|
};
|
|
|
|
const result = compile(files, angularFiles);
|
|
|
|
const allListenerFunctionsNames = (result.source.match(/function ([^\s(]+)/g) || [])
|
|
.map(x => x.slice(9))
|
|
.filter(x => x.includes('listener'))
|
|
.sort();
|
|
const uniqueListenerFunctionNames = Array.from(new Set(allListenerFunctionsNames));
|
|
|
|
expect(allListenerFunctionsNames.length).toBe(3);
|
|
expect(allListenerFunctionsNames).toEqual(uniqueListenerFunctionNames);
|
|
});
|
|
|
|
it('should support pipes in template bindings', () => {
|
|
const files = {
|
|
app: {
|
|
'spec.ts': `
|
|
import {Component, NgModule} from '@angular/core';
|
|
|
|
@Component({
|
|
selector: 'my-component',
|
|
template: \`
|
|
<div *ngIf="val | pipe"></div>\`
|
|
})
|
|
export class MyComponent {}
|
|
|
|
@NgModule({declarations: [MyComponent]})
|
|
export class MyModule {}
|
|
`
|
|
}
|
|
};
|
|
|
|
const template = `
|
|
const $c0$ = [${AttributeMarker.SelectOnly}, "ngIf"];
|
|
|
|
function MyComponent_div_0_Template(rf, ctx) {
|
|
if (rf & 1) {
|
|
$i0$.ɵelement(0, "div");
|
|
}
|
|
}
|
|
|
|
// ...
|
|
|
|
template: function MyComponent_Template(rf, ctx) {
|
|
if (rf & 1) {
|
|
$i0$.ɵtemplate(0, MyComponent_div_0_Template, 1, 0, "div", $c0$);
|
|
$i0$.ɵpipe(1, "pipe");
|
|
} if (rf & 2) {
|
|
$i0$.ɵelementProperty(0, "ngIf", $i0$.ɵbind($i0$.ɵpipeBind1(1, 1, ctx.val)));
|
|
}
|
|
}`;
|
|
|
|
const result = compile(files, angularFiles);
|
|
|
|
expectEmit(result.source, template, 'Incorrect template');
|
|
});
|
|
});
|