792 lines
22 KiB
TypeScript
792 lines
22 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 {C, ComponentDef, ComponentTemplate, D, E, L, LifecycleHook, T, V, b, c, cR, cr, defineComponent, e, l, p, r, v} from '../../src/render3/index';
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import {containerEl, renderToHtml} from './render_util';
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describe('lifecycles', () => {
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describe('onInit', () => {
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let events: string[];
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beforeEach(() => { events = []; });
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let Comp = createOnInitComponent('comp', (ctx: any, cm: boolean) => {});
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let Parent = createOnInitComponent('parent', (ctx: any, cm: boolean) => {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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p(0, 'val', b(ctx.val));
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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});
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function createOnInitComponent(name: string, template: ComponentTemplate<any>) {
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return class Component {
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val: string = '';
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ngOnInit() { events.push(`${name}${this.val}`); }
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static ngComponentDef = defineComponent({
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type: Component,
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tag: name,
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factory: () => new Component(),
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hostBindings: function(directiveIndex: number, elementIndex: number):
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void { l(LifecycleHook.ON_INIT) && D<Component>(directiveIndex).ngOnInit(); },
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inputs: {val: 'val'}, template
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});
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};
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}
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it('should call onInit method after inputs are set in creation mode (and not in update mode)',
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() => {
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/** <comp [val]="val"></comp> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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p(0, 'val', b(ctx.val));
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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}
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renderToHtml(Template, {val: '1'});
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expect(events).toEqual(['comp1']);
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renderToHtml(Template, {val: '2'});
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expect(events).toEqual(['comp1']);
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});
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it('should call parent onInit before child onInit', () => {
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/**
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* <parent></parent>
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* parent temp: <comp></comp>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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Parent.ngComponentDef.h(1, 0);
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Parent.ngComponentDef.r(1, 0);
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}
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renderToHtml(Template, {});
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expect(events).toEqual(['parent', 'comp']);
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});
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it('should call all parent onInits across view before calling children onInits', () => {
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/**
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* <parent [val]="1"></parent>
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* <parent [val]="2"></parent>
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*
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* parent temp: <comp [val]="val"></comp>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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E(2, Parent.ngComponentDef);
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{ D(3, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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p(0, 'val', 1);
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Parent.ngComponentDef.h(1, 0);
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p(2, 'val', 2);
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Parent.ngComponentDef.h(3, 2);
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Parent.ngComponentDef.r(1, 0);
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Parent.ngComponentDef.r(3, 2);
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}
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renderToHtml(Template, {});
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expect(events).toEqual(['parent1', 'parent2', 'comp1', 'comp2']);
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});
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it('should call onInit every time a new view is created (if block)', () => {
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/**
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* % if (condition) {
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* <comp></comp>
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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C(0);
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c();
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}
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cR(0);
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{
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if (ctx.condition) {
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if (V(0)) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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}
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renderToHtml(Template, {condition: true});
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expect(events).toEqual(['comp']);
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renderToHtml(Template, {condition: false});
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expect(events).toEqual(['comp']);
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renderToHtml(Template, {condition: true});
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expect(events).toEqual(['comp', 'comp']);
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});
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it('should call onInit properly in for loop', () => {
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/**
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* <comp [val]="1"></comp>
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* % for (let j = 2; j < 5; j++) {
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* <comp [val]="j"></comp>
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* % }
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* <comp [val]="5"></comp>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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C(2);
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c();
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E(3, Comp.ngComponentDef);
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{ D(4, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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p(0, 'val', 1);
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Comp.ngComponentDef.h(1, 0);
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p(3, 'val', 5);
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Comp.ngComponentDef.h(4, 3);
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cR(2);
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{
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for (let j = 2; j < 5; j++) {
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if (V(0)) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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p(0, 'val', j);
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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Comp.ngComponentDef.r(1, 0);
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Comp.ngComponentDef.r(4, 3);
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}
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renderToHtml(Template, {});
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// onInit is called top to bottom, so top level comps (1 and 5) are called
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// before the comps inside the for loop's embedded view (2, 3, and 4)
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expect(events).toEqual(['comp1', 'comp5', 'comp2', 'comp3', 'comp4']);
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});
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it('should call onInit properly in for loop with children', () => {
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/**
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* <parent [val]="1"></parent>
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* % for (let j = 2; j < 5; j++) {
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* <parent [val]="j"></parent>
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* % }
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* <parent [val]="5"></parent>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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C(2);
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c();
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E(3, Parent.ngComponentDef);
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{ D(4, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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p(0, 'val', 1);
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Parent.ngComponentDef.h(1, 0);
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p(3, 'val', 5);
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Parent.ngComponentDef.h(4, 3);
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cR(2);
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{
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for (let j = 2; j < 5; j++) {
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if (V(0)) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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p(0, 'val', j);
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Parent.ngComponentDef.h(1, 0);
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Parent.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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Parent.ngComponentDef.r(1, 0);
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Parent.ngComponentDef.r(4, 3);
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}
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renderToHtml(Template, {});
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// onInit is called top to bottom, so top level comps (1 and 5) are called
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// before the comps inside the for loop's embedded view (2, 3, and 4)
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expect(events).toEqual([
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'parent1', 'parent5', 'parent2', 'comp2', 'parent3', 'comp3', 'parent4', 'comp4', 'comp1',
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'comp5'
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]);
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});
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});
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describe('doCheck', () => {
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let events: string[];
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let allEvents: string[];
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beforeEach(() => {
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events = [];
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allEvents = [];
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});
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let Comp = createDoCheckComponent('comp', (ctx: any, cm: boolean) => {});
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let Parent = createDoCheckComponent('parent', (ctx: any, cm: boolean) => {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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});
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function createDoCheckComponent(name: string, template: ComponentTemplate<any>) {
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return class Component {
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ngDoCheck() {
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events.push(name);
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allEvents.push('ngDoCheck ' + name);
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}
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ngOnInit() { allEvents.push('ngOnInit ' + name); }
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static ngComponentDef = defineComponent({
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type: Component,
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tag: name,
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factory: () => new Component(),
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hostBindings: function(
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this: ComponentDef<Component>, directiveIndex: number, elementIndex: number): void {
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l(LifecycleHook.ON_INIT) && D<Component>(directiveIndex).ngOnInit();
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D<Component>(directiveIndex).ngDoCheck();
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},
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template
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});
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};
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}
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it('should call doCheck on every refresh', () => {
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/** <comp></comp> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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}
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renderToHtml(Template, {});
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expect(events).toEqual(['comp']);
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renderToHtml(Template, {});
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expect(events).toEqual(['comp', 'comp']);
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});
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it('should call parent doCheck before child doCheck', () => {
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/**
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* <parent></parent>
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* parent temp: <comp></comp>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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Parent.ngComponentDef.h(1, 0);
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Parent.ngComponentDef.r(1, 0);
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}
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renderToHtml(Template, {});
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expect(events).toEqual(['parent', 'comp']);
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});
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it('should call ngOnInit before ngDoCheck if creation mode', () => {
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/** <comp></comp> */
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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}
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renderToHtml(Template, {});
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expect(allEvents).toEqual(['ngOnInit comp', 'ngDoCheck comp']);
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renderToHtml(Template, {});
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expect(allEvents).toEqual(['ngOnInit comp', 'ngDoCheck comp', 'ngDoCheck comp']);
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});
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});
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describe('onDestroy', () => {
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let events: string[];
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beforeEach(() => { events = []; });
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let Comp = createOnDestroyComponent('comp', function(ctx: any, cm: boolean) {});
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let Parent = createOnDestroyComponent('parent', function(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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});
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function createOnDestroyComponent(name: string, template: ComponentTemplate<any>) {
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return class Component {
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val: string = '';
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ngOnDestroy() { events.push(`${name}${this.val}`); }
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static ngComponentDef = defineComponent({
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type: Component,
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tag: name,
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factory: () => {
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const comp = new Component();
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l(LifecycleHook.ON_DESTROY, comp, comp.ngOnDestroy);
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return comp;
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},
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inputs: {val: 'val'},
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template: template
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});
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};
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}
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it('should call destroy when view is removed', () => {
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/**
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* % if (condition) {
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* <comp></comp>
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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C(0);
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c();
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}
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cR(0);
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{
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if (ctx.condition) {
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if (V(0)) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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Comp.ngComponentDef.h(1, 0);
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Comp.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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}
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renderToHtml(Template, {condition: true});
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renderToHtml(Template, {condition: false});
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expect(events).toEqual(['comp']);
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});
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it('should call destroy when multiple views are removed', () => {
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/**
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* % if (condition) {
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* <comp [val]="1"></comp>
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* <comp [val]="2"></comp>
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* % }
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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C(0);
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c();
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}
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cR(0);
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{
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if (ctx.condition) {
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if (V(0)) {
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E(0, Comp.ngComponentDef);
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{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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E(2, Comp.ngComponentDef);
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{ D(3, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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e();
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}
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p(0, 'val', b('1'));
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Comp.ngComponentDef.h(1, 0);
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p(2, 'val', b('2'));
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Comp.ngComponentDef.h(3, 2);
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Comp.ngComponentDef.r(1, 0);
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Comp.ngComponentDef.r(3, 2);
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v();
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}
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}
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cr();
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}
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renderToHtml(Template, {condition: true});
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renderToHtml(Template, {condition: false});
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expect(events).toEqual(['comp1', 'comp2']);
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});
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it('should be called in child components before parent components', () => {
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/**
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* % if (condition) {
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* <parent></parent>
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* % }
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*
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* parent template: <comp></comp>
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*/
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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C(0);
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c();
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}
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cR(0);
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{
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if (ctx.condition) {
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if (V(0)) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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Parent.ngComponentDef.h(1, 0);
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Parent.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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}
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renderToHtml(Template, {condition: true});
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renderToHtml(Template, {condition: false});
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expect(events).toEqual(['comp', 'parent']);
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});
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it('should be called bottom up with children nested 2 levels deep', () => {
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/**
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* % if (condition) {
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* <grandparent></grandparent>
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* % }
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*
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* grandparent template: <parent></parent>
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* parent template: <comp></comp>
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*/
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let Grandparent = createOnDestroyComponent('grandparent', function(ctx: any, cm: boolean) {
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if (cm) {
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E(0, Parent.ngComponentDef);
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{ D(1, Parent.ngComponentDef.n(), Parent.ngComponentDef); }
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e();
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}
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Parent.ngComponentDef.h(1, 0);
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Parent.ngComponentDef.r(1, 0);
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});
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function Template(ctx: any, cm: boolean) {
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if (cm) {
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C(0);
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c();
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}
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cR(0);
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{
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if (ctx.condition) {
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if (V(0)) {
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E(0, Grandparent.ngComponentDef);
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{ D(1, Grandparent.ngComponentDef.n(), Grandparent.ngComponentDef); }
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e();
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}
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Grandparent.ngComponentDef.h(1, 0);
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Grandparent.ngComponentDef.r(1, 0);
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v();
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}
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}
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cr();
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}
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renderToHtml(Template, {condition: true});
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renderToHtml(Template, {condition: false});
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expect(events).toEqual(['comp', 'parent', 'grandparent']);
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});
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it('should be called in consistent order if views are removed and re-added', () => {
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|
/**
|
|
* % if (condition) {
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|
* <comp [val]="1"></comp>
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|
* % if (condition2) {
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|
* <comp [val]="2"></comp>
|
|
* % }
|
|
* <comp [val]="3"></comp>
|
|
* % }
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|
*/
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|
|
|
function Template(ctx: any, cm: boolean) {
|
|
if (cm) {
|
|
C(0);
|
|
c();
|
|
}
|
|
cR(0);
|
|
{
|
|
if (ctx.condition) {
|
|
if (V(0)) {
|
|
E(0, Comp.ngComponentDef);
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|
{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
C(2);
|
|
c();
|
|
E(3, Comp.ngComponentDef);
|
|
{ D(4, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
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|
e();
|
|
}
|
|
p(0, 'val', b('1'));
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|
Comp.ngComponentDef.h(1, 0);
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|
p(3, 'val', b('3'));
|
|
Comp.ngComponentDef.h(4, 3);
|
|
cR(2);
|
|
{
|
|
if (ctx.condition2) {
|
|
if (V(0)) {
|
|
E(0, Comp.ngComponentDef);
|
|
{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
}
|
|
p(0, 'val', b('2'));
|
|
Comp.ngComponentDef.h(1, 0);
|
|
Comp.ngComponentDef.r(1, 0);
|
|
v();
|
|
}
|
|
}
|
|
cr();
|
|
Comp.ngComponentDef.r(1, 0);
|
|
Comp.ngComponentDef.r(4, 3);
|
|
v();
|
|
}
|
|
}
|
|
cr();
|
|
}
|
|
|
|
renderToHtml(Template, {condition: true, condition2: true});
|
|
renderToHtml(Template, {condition: false});
|
|
|
|
/**
|
|
* Current angular will process in this same order (root is the top-level removed view):
|
|
*
|
|
* root.child (comp1 view) onDestroy: null
|
|
* root.child.next (container) -> embeddedView
|
|
* embeddedView.child (comp2 view) onDestroy: null
|
|
* embeddedView onDestroy: [comp2]
|
|
* root.child.next.next (comp3 view) onDestroy: null
|
|
* root onDestroy: [comp1, comp3]
|
|
*/
|
|
expect(events).toEqual(['comp2', 'comp1', 'comp3']);
|
|
|
|
events = [];
|
|
renderToHtml(Template, {condition: true, condition2: false});
|
|
renderToHtml(Template, {condition: false});
|
|
expect(events).toEqual(['comp1', 'comp3']);
|
|
|
|
events = [];
|
|
renderToHtml(Template, {condition: true, condition2: true});
|
|
renderToHtml(Template, {condition: false});
|
|
expect(events).toEqual(['comp2', 'comp1', 'comp3']);
|
|
});
|
|
|
|
it('should be called in every iteration of a destroyed for loop', () => {
|
|
/**
|
|
* % if (condition) {
|
|
* <comp [val]="1"></comp>
|
|
* % for (let i = 2; i < len; i++) {
|
|
* <comp [val]="i"></comp>
|
|
* % }
|
|
* <comp [val]="5"></comp>
|
|
* % }
|
|
*/
|
|
function Template(ctx: any, cm: boolean) {
|
|
if (cm) {
|
|
C(0);
|
|
c();
|
|
}
|
|
cR(0);
|
|
{
|
|
if (ctx.condition) {
|
|
if (V(0)) {
|
|
E(0, Comp.ngComponentDef);
|
|
{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
C(2);
|
|
c();
|
|
E(3, Comp.ngComponentDef);
|
|
{ D(4, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
}
|
|
p(0, 'val', b('1'));
|
|
Comp.ngComponentDef.h(1, 0);
|
|
p(3, 'val', b('5'));
|
|
Comp.ngComponentDef.h(4, 3);
|
|
cR(2);
|
|
{
|
|
for (let j = 2; j < ctx.len; j++) {
|
|
if (V(0)) {
|
|
E(0, Comp.ngComponentDef);
|
|
{ D(1, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
}
|
|
p(0, 'val', b(j));
|
|
Comp.ngComponentDef.h(1, 0);
|
|
Comp.ngComponentDef.r(1, 0);
|
|
v();
|
|
}
|
|
}
|
|
cr();
|
|
Comp.ngComponentDef.r(1, 0);
|
|
Comp.ngComponentDef.r(4, 3);
|
|
v();
|
|
}
|
|
}
|
|
cr();
|
|
}
|
|
|
|
/**
|
|
* Current angular will process in this same order (root is the top-level removed view):
|
|
*
|
|
* root.child (comp1 view) onDestroy: null
|
|
* root.child.next (container) -> embeddedView (children[0].data)
|
|
* embeddedView.child (comp2 view) onDestroy: null
|
|
* embeddedView onDestroy: [comp2]
|
|
* embeddedView.next.child (comp3 view) onDestroy: null
|
|
* embeddedView.next onDestroy: [comp3]
|
|
* embeddedView.next.next.child (comp4 view) onDestroy: null
|
|
* embeddedView.next.next onDestroy: [comp4]
|
|
* embeddedView.next.next -> container -> root
|
|
* root onDestroy: [comp1, comp5]
|
|
*/
|
|
renderToHtml(Template, {condition: true, len: 5});
|
|
renderToHtml(Template, {condition: false});
|
|
expect(events).toEqual(['comp2', 'comp3', 'comp4', 'comp1', 'comp5']);
|
|
|
|
events = [];
|
|
renderToHtml(Template, {condition: true, len: 4});
|
|
renderToHtml(Template, {condition: false});
|
|
expect(events).toEqual(['comp2', 'comp3', 'comp1', 'comp5']);
|
|
|
|
events = [];
|
|
renderToHtml(Template, {condition: true, len: 5});
|
|
renderToHtml(Template, {condition: false});
|
|
expect(events).toEqual(['comp2', 'comp3', 'comp4', 'comp1', 'comp5']);
|
|
});
|
|
|
|
it('should call destroy properly if view also has listeners', () => {
|
|
/**
|
|
* % if (condition) {
|
|
* <button (click)="onClick()">Click me</button>
|
|
* <comp></comp>
|
|
* <button (click)="onClick()">Click me</button>
|
|
* % }
|
|
*/
|
|
|
|
function Template(ctx: any, cm: boolean) {
|
|
if (cm) {
|
|
C(0);
|
|
c();
|
|
}
|
|
cR(0);
|
|
{
|
|
if (ctx.condition) {
|
|
if (V(0)) {
|
|
E(0, 'button');
|
|
{
|
|
L('click', ctx.onClick.bind(ctx));
|
|
T(1, 'Click me');
|
|
}
|
|
e();
|
|
E(2, Comp.ngComponentDef);
|
|
{ D(3, Comp.ngComponentDef.n(), Comp.ngComponentDef); }
|
|
e();
|
|
E(4, 'button');
|
|
{
|
|
L('click', ctx.onClick.bind(ctx));
|
|
T(5, 'Click me');
|
|
}
|
|
e();
|
|
}
|
|
Comp.ngComponentDef.h(3, 2);
|
|
Comp.ngComponentDef.r(3, 2);
|
|
v();
|
|
}
|
|
}
|
|
cr();
|
|
}
|
|
|
|
class App {
|
|
counter = 0;
|
|
condition = true;
|
|
onClick() { this.counter++; }
|
|
}
|
|
|
|
const ctx: {counter: number} = new App();
|
|
renderToHtml(Template, ctx);
|
|
|
|
const buttons = containerEl.querySelectorAll('button') !;
|
|
buttons[0].click();
|
|
expect(ctx.counter).toEqual(1);
|
|
buttons[1].click();
|
|
expect(ctx.counter).toEqual(2);
|
|
|
|
renderToHtml(Template, {condition: false});
|
|
|
|
buttons[0].click();
|
|
buttons[1].click();
|
|
expect(events).toEqual(['comp']);
|
|
expect(ctx.counter).toEqual(2);
|
|
});
|
|
|
|
|
|
});
|
|
|
|
});
|