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fix(upgrade): fix/improve support for lifecycle hooks (#13020) 

With the exception of `$onChanges()`, all lifecycle hooks in ng1 are called on
the controller, regardless if it is the binding destination or not (i.e.
regardless of the value of `bindToController`).

This change makes `upgrade` mimic that behavior when calling lifecycle hooks.

Additionally, calling the `$onInit()` hook has been moved before calling the
linking functions, which also mimics the ng1 behavior.
This commit is contained in:
Georgios Kalpakas 2016-12-28 00:42:53 +02:00 committed by Hans
parent 69fa3bbc03
commit e5c4e5801f
2 changed files with 596 additions and 174 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
modules/@angular/upgrade/src/upgrade_ng1_adapter.ts
View File

@ -12,6 +12,21 @@ import * as angular from './angular_js';
import {NG1_COMPILE, NG1_CONTROLLER, NG1_HTTP_BACKEND, NG1_SCOPE, NG1_TEMPLATE_CACHE} from './constants';
import {controllerKey} from './util';
interface IBindingDestination {
[key: string]: any;
$onChanges?: (changes: SimpleChanges) => void;
}
interface IControllerInstance extends IBindingDestination {
$doCheck?: () => void;
$onDestroy?: () => void;
$onInit?: () => void;
$postLink?: () => void;
}
type LifecycleHook = '$doCheck' | '$onChanges' | '$onDestroy' | '$onInit' | '$postLink';
const CAMEL_CASE = /([A-Z])/g;
const INITIAL_VALUE = {
__UNINITIALIZED__: true
@ -134,11 +149,11 @@ export class UpgradeNg1ComponentAdapterBuilder {
httpBackend: angular.IHttpBackendService): Promise<angular.ILinkFn> {
if (this.directive.template !== undefined) {
this.linkFn = compileHtml(
typeof this.directive.template === 'function' ? this.directive.template() :
this.directive.template);
isFunction(this.directive.template) ? this.directive.template() :
this.directive.template);
} else if (this.directive.templateUrl) {
const url = typeof this.directive.templateUrl === 'function' ? this.directive.templateUrl() :
this.directive.templateUrl;
const url = isFunction(this.directive.templateUrl) ? this.directive.templateUrl() :
this.directive.templateUrl;
const html = templateCache.get(url);
if (html !== undefined) {
this.linkFn = compileHtml(html);
@ -193,7 +208,8 @@ export class UpgradeNg1ComponentAdapterBuilder {
}
class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
destinationObj: any = null;
private controllerInstance: IControllerInstance = null;
destinationObj: IBindingDestination = null;
checkLastValues: any[] = [];
componentScope: angular.IScope;
element: Element;
@ -209,7 +225,8 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
this.$element = angular.element(this.element);
const controllerType = directive.controller;
if (directive.bindToController && controllerType) {
this.destinationObj = this.buildController(controllerType);
this.controllerInstance = this.buildController(controllerType);
this.destinationObj = this.controllerInstance;
} else {
this.destinationObj = this.componentScope;
}
@ -231,8 +248,13 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
ngOnInit() {
if (!this.directive.bindToController && this.directive.controller) {
this.buildController(this.directive.controller);
this.controllerInstance = this.buildController(this.directive.controller);
}
if (this.controllerInstance && isFunction(this.controllerInstance.$onInit)) {
this.controllerInstance.$onInit();
}
let link = this.directive.link;
if (typeof link == 'object') link = (<angular.IDirectivePrePost>link).pre;
if (link) {
@ -257,8 +279,9 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
parentBoundTranscludeFn: (scope: any /** TODO #9100 */,
cloneAttach: any /** TODO #9100 */) => { cloneAttach(childNodes); }
});
if (this.destinationObj.$onInit) {
this.destinationObj.$onInit();
if (this.controllerInstance && isFunction(this.controllerInstance.$postLink)) {
this.controllerInstance.$postLink();
}
}
@ -269,7 +292,8 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
this.setComponentProperty(name, change.currentValue);
ng1Changes[this.propertyMap[name]] = change;
});
if (this.destinationObj.$onChanges) {
if (isFunction(this.destinationObj.$onChanges)) {
this.destinationObj.$onChanges(ng1Changes);
}
}
@ -290,14 +314,15 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
}
}
}
if (this.destinationObj.$doCheck && this.directive.controller) {
this.destinationObj.$doCheck();
if (this.controllerInstance && isFunction(this.controllerInstance.$doCheck)) {
this.controllerInstance.$doCheck();
}
}
ngOnDestroy() {
if (this.destinationObj.$onDestroy && this.directive.controller) {
this.destinationObj.$onDestroy();
if (this.controllerInstance && isFunction(this.controllerInstance.$onDestroy)) {
this.controllerInstance.$onDestroy();
}
}
@ -353,3 +378,7 @@ class UpgradeNg1ComponentAdapter implements OnInit, OnChanges, DoCheck {
`Directive '${this.directive.name}' require syntax unrecognized: ${this.directive.require}`);
}
}
function isFunction(value: any): value is Function {
return typeof value === 'function';
}

713
modules/@angular/upgrade/test/upgrade_spec.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {ChangeDetectorRef, Class, Component, EventEmitter, NO_ERRORS_SCHEMA, NgModule, SimpleChanges, Testability, destroyPlatform, forwardRef} from '@angular/core';
import {ChangeDetectorRef, Class, Component, EventEmitter, NO_ERRORS_SCHEMA, NgModule, SimpleChange, SimpleChanges, Testability, destroyPlatform, forwardRef} from '@angular/core';
import {async, fakeAsync, flushMicrotasks, tick} from '@angular/core/testing';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
@ -900,167 +900,560 @@ export function main() {
});
}));
it('should call $onInit of components', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onInitSpy = jasmine.createSpy('$onInit');
describe('with lifecycle hooks', () => {
it('should call `$onInit()` on controller', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onInitSpyA = jasmine.createSpy('$onInitA');
const $onInitSpyB = jasmine.createSpy('$onInitB');
@Component({selector: 'ng2', template: '<ng1></ng1>'})
class Ng2Component {
}
angular.module('ng1', [])
.component('ng1', {
bindings: {},
template: '',
controller: function() { this.$onInit = $onInitSpy; }
})
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [adapter.upgradeNg1Component('ng1'), Ng2Component],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($onInitSpy).toHaveBeenCalled();
ref.dispose();
});
}));
it('should call $doCheck of components', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $doCheckSpy = jasmine.createSpy('$doCheck');
let changeDetector: ChangeDetectorRef;
@Component({selector: 'ng2', template: '<ng1></ng1>'})
class Ng2Component {
constructor(cd: ChangeDetectorRef) { changeDetector = cd; }
}
angular.module('ng1', [])
.component('ng1', {
bindings: {},
template: '{{$ctrl.value}}',
controller: function() { this.$doCheck = $doCheckSpy; }
})
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [adapter.upgradeNg1Component('ng1'), Ng2Component],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($doCheckSpy).toHaveBeenCalled();
$doCheckSpy.calls.reset();
changeDetector.detectChanges();
expect($doCheckSpy).toHaveBeenCalled();
ref.dispose();
});
}));
it('should call $onChanges of components', fakeAsync(() => {
const EXPECTED_VALUE = '$onChanges called';
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onChangesSpy = jasmine.createSpy('$onChanges');
let ng2Instance: any;
@Component({selector: 'ng2', template: '<ng1 [val]="val"></ng1>'})
class Ng2Component {
constructor() { ng2Instance = this; }
}
angular.module('ng1Module', [])
.component('ng1', {
bindings: {val: '<'},
template: '',
controller: function() { this.$onChanges = $onChangesSpy; }
})
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [adapter.upgradeNg1Component('ng1'), Ng2Component],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1Module']).ready((ref) => {
ng2Instance.val = EXPECTED_VALUE;
tick();
ref.ng1RootScope.$digest();
expect($onChangesSpy).toHaveBeenCalled();
const changes = $onChangesSpy.calls.mostRecent().args[0] as SimpleChanges;
expect(changes['val'].currentValue).toEqual(EXPECTED_VALUE);
ref.dispose();
});
}));
it('should call $onDestroy of components', fakeAsync(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onDestroySpy = jasmine.createSpy('$onDestroy');
@Component({selector: 'ng2', template: '<ng1></ng1>'})
class Ng2Component {
}
angular.module('ng1', [])
.component('ng1', {
bindings: {},
template: '<div>ng1</div>',
controller: function() { this.$onDestroy = $onDestroySpy; }
})
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [adapter.upgradeNg1Component('ng1'), Ng2Component],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div ng-if="!destroy"><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
const $rootScope = ref.ng1RootScope as any;
$rootScope.destroy = false;
tick();
$rootScope.$digest();
expect($onDestroySpy).not.toHaveBeenCalled();
$rootScope.destroy = true;
tick();
$rootScope.$digest();
expect($onDestroySpy).toHaveBeenCalled();
ref.dispose();
if (!(global as any)['requestAnimationFrame']) {
// Needed for browser which don't support RAF and use a 16.6 setTimeout instead in
// ng1's AnimateRunner.
// This setTimeout remains at the end of the test and needs to be discarded.
tick(20);
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
}
});
}));
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: class {$onInit() { $onInitSpyA(); }}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function() { this.$onInit = $onInitSpyB; }
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($onInitSpyA).toHaveBeenCalled();
expect($onInitSpyB).toHaveBeenCalled();
ref.dispose();
});
}));
it('should not call `$onInit()` on scope', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onInitSpy = jasmine.createSpy('$onInit');
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
Object.getPrototypeOf($scope).$onInit = $onInitSpy;
}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
$scope['$onInit'] = $onInitSpy;
}
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($onInitSpy).not.toHaveBeenCalled();
ref.dispose();
});
}));
it('should call `$doCheck()` on controller', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $doCheckSpyA = jasmine.createSpy('$doCheckA');
const $doCheckSpyB = jasmine.createSpy('$doCheckB');
let changeDetector: ChangeDetectorRef;
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
constructor(cd: ChangeDetectorRef) { changeDetector = cd; }
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: class {$doCheck() { $doCheckSpyA(); }}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function() { this.$doCheck = $doCheckSpyB; }
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($doCheckSpyA).toHaveBeenCalled();
expect($doCheckSpyB).toHaveBeenCalled();
$doCheckSpyA.calls.reset();
$doCheckSpyB.calls.reset();
changeDetector.detectChanges();
expect($doCheckSpyA).toHaveBeenCalled();
expect($doCheckSpyB).toHaveBeenCalled();
ref.dispose();
});
}));
it('should not call `$doCheck()` on scope', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $doCheckSpyA = jasmine.createSpy('$doCheckA');
const $doCheckSpyB = jasmine.createSpy('$doCheckB');
let changeDetector: ChangeDetectorRef;
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
constructor(cd: ChangeDetectorRef) { changeDetector = cd; }
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
Object.getPrototypeOf($scope).$doCheck = $doCheckSpyA;
}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
$scope['$doCheck'] = $doCheckSpyB;
}
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
$doCheckSpyA.calls.reset();
$doCheckSpyB.calls.reset();
changeDetector.detectChanges();
expect($doCheckSpyA).not.toHaveBeenCalled();
expect($doCheckSpyB).not.toHaveBeenCalled();
ref.dispose();
});
}));
it('should call `$postLink()` on controller', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $postLinkSpyA = jasmine.createSpy('$postLinkA');
const $postLinkSpyB = jasmine.createSpy('$postLinkB');
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: class {$postLink() { $postLinkSpyA(); }}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function() { this.$postLink = $postLinkSpyB; }
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($postLinkSpyA).toHaveBeenCalled();
expect($postLinkSpyB).toHaveBeenCalled();
ref.dispose();
});
}));
it('should not call `$postLink()` on scope', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $postLinkSpy = jasmine.createSpy('$postLink');
@Component({selector: 'ng2', template: '<ng1-a></ng1-a> | <ng1-b></ng1-b>'})
class Ng2Component {
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
Object.getPrototypeOf($scope).$postLink = $postLinkSpy;
}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
$scope['$postLink'] = $postLinkSpy;
}
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
expect($postLinkSpy).not.toHaveBeenCalled();
ref.dispose();
});
}));
it('should call `$onChanges()` on binding destination', fakeAsync(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onChangesControllerSpyA = jasmine.createSpy('$onChangesControllerA');
const $onChangesControllerSpyB = jasmine.createSpy('$onChangesControllerB');
const $onChangesScopeSpy = jasmine.createSpy('$onChangesScope');
let ng2Instance: any;
@Component({
selector: 'ng2',
template: '<ng1-a [valA]="val"></ng1-a> | <ng1-b [valB]="val"></ng1-b>'
})
class Ng2Component {
constructor() { ng2Instance = this; }
}
angular.module('ng1', [])
.directive('ng1A', () => ({
template: '',
scope: {valA: '<'},
bindToController: true,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
this.$onChanges = $onChangesControllerSpyA;
}
}))
.directive(
'ng1B',
() => ({
template: '',
scope: {valB: '<'},
bindToController: false,
controllerAs: '$ctrl',
controller: class {
$onChanges(changes: SimpleChanges) { $onChangesControllerSpyB(changes); }
}
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component))
.run(($rootScope: angular.IRootScopeService) => {
Object.getPrototypeOf($rootScope).$onChanges = $onChangesScopeSpy;
});
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
// Initial `$onChanges()` call
tick();
expect($onChangesControllerSpyA.calls.count()).toBe(1);
expect($onChangesControllerSpyA.calls.argsFor(0)[0]).toEqual({
valA: jasmine.any(SimpleChange)
});
expect($onChangesControllerSpyB).not.toHaveBeenCalled();
expect($onChangesScopeSpy.calls.count()).toBe(1);
expect($onChangesScopeSpy.calls.argsFor(0)[0]).toEqual({
valB: jasmine.any(SimpleChange)
});
$onChangesControllerSpyA.calls.reset();
$onChangesControllerSpyB.calls.reset();
$onChangesScopeSpy.calls.reset();
// `$onChanges()` call after a change
ng2Instance.val = 'new value';
tick();
ref.ng1RootScope.$digest();
expect($onChangesControllerSpyA.calls.count()).toBe(1);
expect($onChangesControllerSpyA.calls.argsFor(0)[0]).toEqual({
valA: jasmine.objectContaining({currentValue: 'new value'})
});
expect($onChangesControllerSpyB).not.toHaveBeenCalled();
expect($onChangesScopeSpy.calls.count()).toBe(1);
expect($onChangesScopeSpy.calls.argsFor(0)[0]).toEqual({
valB: jasmine.objectContaining({currentValue: 'new value'})
});
ref.dispose();
});
}));
it('should call `$onDestroy()` on controller', fakeAsync(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onDestroySpyA = jasmine.createSpy('$onDestroyA');
const $onDestroySpyB = jasmine.createSpy('$onDestroyB');
let ng2ComponentInstance: Ng2Component;
@Component({
selector: 'ng2',
template: `
<div *ngIf="!ng2Destroy">
<ng1-a></ng1-a> | <ng1-b></ng1-b>
</div>
`
})
class Ng2Component {
ng2Destroy: boolean = false;
constructor() { ng2ComponentInstance = this; }
}
// On browsers that don't support `requestAnimationFrame` (IE 9, Android <= 4.3),
// `$animate` will use `setTimeout(..., 16.6)` instead. This timeout will still be on
// the queue at the end of the test, causing it to fail.
// Mocking animations (via `ngAnimateMock`) avoids the issue.
angular.module('ng1', ['ngAnimateMock'])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: class {$onDestroy() { $onDestroySpyA(); }}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function() { this.$onDestroy = $onDestroySpyB; }
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div ng-if="!ng1Destroy"><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
const $rootScope = ref.ng1RootScope as any;
$rootScope.ng1Destroy = false;
tick();
$rootScope.$digest();
expect($onDestroySpyA).not.toHaveBeenCalled();
expect($onDestroySpyB).not.toHaveBeenCalled();
$rootScope.ng1Destroy = true;
tick();
$rootScope.$digest();
expect($onDestroySpyA).toHaveBeenCalled();
expect($onDestroySpyB).toHaveBeenCalled();
$onDestroySpyA.calls.reset();
$onDestroySpyB.calls.reset();
$rootScope.ng1Destroy = false;
tick();
$rootScope.$digest();
expect($onDestroySpyA).not.toHaveBeenCalled();
expect($onDestroySpyB).not.toHaveBeenCalled();
ng2ComponentInstance.ng2Destroy = true;
tick();
$rootScope.$digest();
expect($onDestroySpyA).toHaveBeenCalled();
expect($onDestroySpyB).toHaveBeenCalled();
ref.dispose();
});
}));
it('should not call `$onDestroy()` on scope', fakeAsync(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));
const $onDestroySpy = jasmine.createSpy('$onDestroy');
let ng2ComponentInstance: Ng2Component;
@Component({
selector: 'ng2',
template: `
<div *ngIf="!ng2Destroy">
<ng1-a></ng1-a> | <ng1-b></ng1-b>
</div>
`
})
class Ng2Component {
ng2Destroy: boolean = false;
constructor() { ng2ComponentInstance = this; }
}
// On browsers that don't support `requestAnimationFrame` (IE 9, Android <= 4.3),
// `$animate` will use `setTimeout(..., 16.6)` instead. This timeout will still be on
// the queue at the end of the test, causing it to fail.
// Mocking animations (via `ngAnimateMock`) avoids the issue.
angular.module('ng1', ['ngAnimateMock'])
.directive('ng1A', () => ({
template: '',
scope: {},
bindToController: true,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
Object.getPrototypeOf($scope).$onDestroy = $onDestroySpy;
}
}))
.directive('ng1B', () => ({
template: '',
scope: {},
bindToController: false,
controllerAs: '$ctrl',
controller: function($scope: angular.IScope) {
$scope['$onDestroy'] = $onDestroySpy;
}
}))
.directive('ng2', adapter.downgradeNg2Component(Ng2Component));
@NgModule({
declarations: [
adapter.upgradeNg1Component('ng1A'), adapter.upgradeNg1Component('ng1B'),
Ng2Component
],
imports: [BrowserModule],
})
class Ng2Module {
}
const element = html(`<div ng-if="!ng1Destroy"><ng2></ng2></div>`);
adapter.bootstrap(element, ['ng1']).ready((ref) => {
const $rootScope = ref.ng1RootScope as any;
$rootScope.ng1Destroy = false;
tick();
$rootScope.$digest();
$rootScope.ng1Destroy = true;
tick();
$rootScope.$digest();
$rootScope.ng1Destroy = false;
tick();
$rootScope.$digest();
ng2ComponentInstance.ng2Destroy = true;
tick();
$rootScope.$digest();
expect($onDestroySpy).not.toHaveBeenCalled();
ref.dispose();
});
}));
});
it('should bind input properties (<) of components', async(() => {
const adapter: UpgradeAdapter = new UpgradeAdapter(forwardRef(() => Ng2Module));