angular-cn/packages/core/test/render3/providers_spec.ts

1540 lines
56 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Component as _Component, ComponentFactoryResolver, ElementRef, InjectFlags, Injectable as _Injectable, InjectionToken, InjectorType, Provider, RendererFactory2, ViewContainerRef, ɵNgModuleDef as NgModuleDef, ɵɵdefineInjectable, ɵɵdefineInjector, ɵɵinject} from '../../src/core';
import {forwardRef} from '../../src/di/forward_ref';
import {createInjector} from '../../src/di/r3_injector';
import {injectComponentFactoryResolver, ɵɵProvidersFeature, ɵɵdefineComponent, ɵɵdefineDirective, ɵɵdirectiveInject} from '../../src/render3/index';
import {ɵɵbind, ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵelement, ɵɵelementEnd, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵinterpolation1, ɵɵtext, ɵɵtextBinding} from '../../src/render3/instructions/all';
import {RenderFlags} from '../../src/render3/interfaces/definition';
import {NgModuleFactory} from '../../src/render3/ng_module_ref';
import {getInjector} from '../../src/render3/util/discovery_utils';
import {getRendererFactory2} from './imported_renderer2';
import {ComponentFixture} from './render_util';
const Component: typeof _Component = function(...args: any[]): any {
// In test we use @Component for documentation only so it's safe to mock out the implementation.
return () => undefined;
} as any;
const Injectable: typeof _Injectable = function(...args: any[]): any {
// In test we use @Injectable for documentation only so it's safe to mock out the implementation.
return () => undefined;
} as any;
describe('providers', () => {
describe('should support all types of Provider:', () => {
abstract class Greeter { abstract greet: string; }
const GREETER = new InjectionToken<Greeter>('greeter');
class GreeterClass implements Greeter {
greet = 'Class';
}
class GreeterDeps implements Greeter {
constructor(public greet: string) {}
}
class GreeterBuiltInDeps implements Greeter {
public greet: string;
constructor(private message: string, private elementRef: ElementRef) {
this.greet = this.message + ' from ' + this.elementRef.nativeElement.tagName;
}
}
class GreeterProvider {
provide() { return 'Provided'; }
}
@Injectable()
class GreeterInj implements Greeter {
public greet: string;
constructor(private provider: GreeterProvider) { this.greet = this.provider.provide(); }
static ngInjectableDef =
ɵɵdefineInjectable({factory: () => new GreeterInj(ɵɵinject(GreeterProvider as any))});
}
it('TypeProvider', () => {
expectProvidersScenario({
parent: {
providers: [GreeterClass],
componentAssertion:
() => { expect(ɵɵdirectiveInject(GreeterClass).greet).toEqual('Class'); }
}
});
});
it('ValueProvider', () => {
expectProvidersScenario({
parent: {
providers: [{provide: GREETER, useValue: {greet: 'Value'}}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Value'); }
}
});
});
it('ClassProvider', () => {
expectProvidersScenario({
parent: {
providers: [{provide: GREETER, useClass: GreeterClass}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Class'); }
}
});
});
it('ExistingProvider', () => {
expectProvidersScenario({
parent: {
providers: [GreeterClass, {provide: GREETER, useExisting: GreeterClass}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Class'); }
}
});
});
it('FactoryProvider', () => {
expectProvidersScenario({
parent: {
providers: [GreeterClass, {provide: GREETER, useFactory: () => new GreeterClass()}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Class'); }
}
});
});
const MESSAGE = new InjectionToken<string>('message');
it('ClassProvider with deps', () => {
expectProvidersScenario({
parent: {
providers: [
{provide: MESSAGE, useValue: 'Message'},
{provide: GREETER, useClass: GreeterDeps, deps: [MESSAGE]}
],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Message'); }
}
});
});
it('ClassProvider with built-in deps', () => {
expectProvidersScenario({
parent: {
providers: [
{provide: MESSAGE, useValue: 'Message'},
{provide: GREETER, useClass: GreeterBuiltInDeps, deps: [MESSAGE, ElementRef]}
],
componentAssertion:
() => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Message from PARENT'); }
}
});
});
it('FactoryProvider with deps', () => {
expectProvidersScenario({
parent: {
providers: [
{provide: MESSAGE, useValue: 'Message'},
{provide: GREETER, useFactory: (msg: string) => new GreeterDeps(msg), deps: [MESSAGE]}
],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Message'); }
}
});
});
it('FactoryProvider with built-in deps', () => {
expectProvidersScenario({
parent: {
providers: [
{provide: MESSAGE, useValue: 'Message'}, {
provide: GREETER,
useFactory: (msg: string, elementRef: ElementRef) =>
new GreeterBuiltInDeps(msg, elementRef),
deps: [MESSAGE, ElementRef]
}
],
componentAssertion:
() => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Message from PARENT'); }
}
});
});
it('ClassProvider with injectable', () => {
expectProvidersScenario({
parent: {
providers: [GreeterProvider, {provide: GREETER, useClass: GreeterInj}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Provided'); }
}
});
});
describe('forwardRef', () => {
it('forwardRef resolves later', (done) => {
setTimeout(() => {
expectProvidersScenario({
parent: {
providers: [forwardRef(() => ForLater)],
componentAssertion:
() => { expect(ɵɵdirectiveInject(ForLater) instanceof ForLater).toBeTruthy(); }
}
});
done();
}, 0);
});
class ForLater {}
// The following test that forwardRefs are called, so we don't search for an anon fn
it('ValueProvider wrapped in forwardRef', () => {
expectProvidersScenario({
parent: {
providers:
[{provide: GREETER, useValue: forwardRef(() => { return {greet: 'Value'}; })}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Value'); }
}
});
});
it('ClassProvider wrapped in forwardRef', () => {
expectProvidersScenario({
parent: {
providers: [{provide: GREETER, useClass: forwardRef(() => GreeterClass)}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Class'); }
}
});
});
it('ExistingProvider wrapped in forwardRef', () => {
expectProvidersScenario({
parent: {
providers:
[GreeterClass, {provide: GREETER, useExisting: forwardRef(() => GreeterClass)}],
componentAssertion: () => { expect(ɵɵdirectiveInject(GREETER).greet).toEqual('Class'); }
}
});
});
it('@Inject annotation wrapped in forwardRef', () => {
// @Inject(forwardRef(() => GREETER))
expectProvidersScenario({
parent: {
providers: [{provide: GREETER, useValue: {greet: 'Value'}}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(forwardRef(() => GREETER)).greet).toEqual('Value');
}
}
});
});
});
});
/*
* All tests below assume this structure:
* ```
* <parent>
* <#VIEW#>
* <view-child>
* </view-child>
* </#VIEW#>
* <content-child>
* </content-child>
* </parent>
* ```
*/
describe('override rules:', () => {
it('directiveProviders should override providers', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'Message 1'}],
directiveProviders: [{provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('viewProviders should override providers', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'Message 1'}],
viewProviders: [{provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('viewProviders should override directiveProviders', () => {
expectProvidersScenario({
parent: {
directiveProviders: [{provide: String, useValue: 'Message 1'}],
viewProviders: [{provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('last declared directive should override other directives', () => {
expectProvidersScenario({
parent: {
directive2Providers: [{provide: String, useValue: 'Message 1'}],
directiveProviders: [{provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('last provider should override previous one in component providers', () => {
expectProvidersScenario({
parent: {
providers:
[{provide: String, useValue: 'Message 1'}, {provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('last provider should override previous one in component view providers', () => {
expectProvidersScenario({
parent: {
viewProviders:
[{provide: String, useValue: 'Message 1'}, {provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
it('last provider should override previous one in directive providers', () => {
expectProvidersScenario({
parent: {
directiveProviders:
[{provide: String, useValue: 'Message 1'}, {provide: String, useValue: 'Message 2'}],
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('Message 2'); }
}
});
});
});
describe('single', () => {
class MyModule {
static ngInjectorDef = ɵɵdefineInjector(
{factory: () => new MyModule(), providers: [{provide: String, useValue: 'From module'}]});
}
describe('without directives', () => {
it('should work without providers nor viewProviders in component', () => {
expectProvidersScenario({
parent: {
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); },
directiveAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); }
},
viewChild: {
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); },
directiveAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); }
},
contentChild: {
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); },
directiveAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); }
},
ngModule: MyModule
});
});
it('should work with only providers in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); }
},
ngModule: MyModule
});
});
it('should work with only viewProviders in component', () => {
expectProvidersScenario({
parent: {
viewProviders: [{provide: String, useValue: 'From viewProviders'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); }
},
contentChild: {
componentAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); },
directiveAssertion: () => { expect(ɵɵdirectiveInject(String)).toEqual('From module'); }
},
ngModule: MyModule
});
});
it('should work with both providers and viewProviders in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers'}],
viewProviders: [{provide: String, useValue: 'From viewProviders'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From providers'); }
},
ngModule: MyModule
});
});
});
describe('with directives (order in ngComponentDef.directives matters)', () => {
it('should work without providers nor viewProviders in component', () => {
expectProvidersScenario({
parent: {
directiveProviders: [{provide: String, useValue: 'From directive'}],
directive2Providers: [{provide: String, useValue: 'Never'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
ngModule: MyModule
});
});
it('should work with only providers in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers'}],
directiveProviders: [{provide: String, useValue: 'From directive'}],
directive2Providers: [{provide: String, useValue: 'Never'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
ngModule: MyModule
});
});
it('should work with only viewProviders in component', () => {
expectProvidersScenario({
parent: {
viewProviders: [{provide: String, useValue: 'From viewProviders'}],
directiveProviders: [{provide: String, useValue: 'From directive'}],
directive2Providers: [{provide: String, useValue: 'Never'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
ngModule: MyModule
});
});
it('should work with both providers and viewProviders in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers'}],
viewProviders: [{provide: String, useValue: 'From viewProviders'}],
directiveProviders: [{provide: String, useValue: 'From directive'}],
directive2Providers: [{provide: String, useValue: 'Never'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From viewProviders'); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual('From directive'); }
},
ngModule: MyModule
});
});
});
});
describe('multi', () => {
class MyModule {
static ngInjectorDef = ɵɵdefineInjector({
factory: () => new MyModule(),
providers: [{provide: String, useValue: 'From module', multi: true}]
});
}
describe('without directives', () => {
it('should work without providers nor viewProviders in component', () => {
expectProvidersScenario({
parent: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); }
},
ngModule: MyModule
});
});
it('should work with only providers in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers', multi: true}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); }
},
ngModule: MyModule
});
});
it('should work with only viewProviders in component', () => {
expectProvidersScenario({
parent: {
viewProviders: [{provide: String, useValue: 'From viewProviders', multi: true}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From viewProviders']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); }
},
viewChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From viewProviders']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From viewProviders']); }
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From module']); }
},
ngModule: MyModule
});
});
it('should work with both providers and viewProviders in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers', multi: true}],
viewProviders: [{provide: String, useValue: 'From viewProviders', multi: true}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From providers', 'From viewProviders']);
},
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); }
},
viewChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From providers', 'From viewProviders']);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From providers', 'From viewProviders']);
}
},
contentChild: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); },
directiveAssertion:
() => { expect(ɵɵdirectiveInject(String)).toEqual(['From providers']); }
},
ngModule: MyModule
});
});
});
describe('with directives (order in ngComponentDef.directives matters)', () => {
it('should work without providers nor viewProviders in component', () => {
expectProvidersScenario({
parent: {
directiveProviders: [{provide: String, useValue: 'From directive 1', multi: true}],
directive2Providers: [{provide: String, useValue: 'From directive 2', multi: true}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
}
},
viewChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
}
},
contentChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
}
},
ngModule: MyModule
});
});
it('should work with only providers in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers', multi: true}],
directiveProviders: [{provide: String, useValue: 'From directive 1', multi: true}],
directive2Providers: [{provide: String, useValue: 'From directive 2', multi: true}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
}
},
viewChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
}
},
contentChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
}
},
ngModule: MyModule
});
});
it('should work with only viewProviders in component', () => {
expectProvidersScenario({
parent: {
viewProviders: [{provide: String, useValue: 'From viewProviders', multi: true}],
directiveProviders: [{provide: String, useValue: 'From directive 1', multi: true}],
directive2Providers: [{provide: String, useValue: 'From directive 2', multi: true}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From viewProviders', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
}
},
viewChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From viewProviders', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From viewProviders', 'From directive 2', 'From directive 1'
]);
}
},
contentChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual(['From directive 2', 'From directive 1']);
}
},
ngModule: MyModule
});
});
it('should work with both providers and viewProviders in component', () => {
expectProvidersScenario({
parent: {
providers: [{provide: String, useValue: 'From providers', multi: true}],
viewProviders: [{provide: String, useValue: 'From viewProviders', multi: true}],
directiveProviders: [{provide: String, useValue: 'From directive 1', multi: true}],
directive2Providers: [{provide: String, useValue: 'From directive 2', multi: true}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From viewProviders', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
}
},
viewChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From viewProviders', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From viewProviders', 'From directive 2', 'From directive 1'
]);
}
},
contentChild: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
},
directiveAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual([
'From providers', 'From directive 2', 'From directive 1'
]);
}
},
ngModule: MyModule
});
});
});
});
describe('tree-shakable injectables', () => {
it('should work with root', () => {
@Injectable({providedIn: 'root'})
class FooForRoot {
static ngInjectableDef =
ɵɵdefineInjectable({factory: () => new FooForRoot(), providedIn: 'root'});
}
expectProvidersScenario({
parent: {
componentAssertion:
() => { expect(ɵɵdirectiveInject(FooForRoot) instanceof FooForRoot).toBeTruthy(); }
}
});
});
it('should work with a module', () => {
class MyModule {
static ngInjectorDef = ɵɵdefineInjector({
factory: () => new MyModule(),
providers: [{provide: String, useValue: 'From module'}]
});
}
@Injectable({providedIn: MyModule})
class FooForModule {
static ngInjectableDef =
ɵɵdefineInjectable({factory: () => new FooForModule(), providedIn: MyModule});
}
expectProvidersScenario({
parent: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(FooForModule) instanceof FooForModule).toBeTruthy();
}
},
ngModule: MyModule
});
});
});
describe('- embedded views', () => {
it('should have access to viewProviders of the host component', () => {
@Component({
template: '{{s}}{{n}}',
})
class Repeated {
constructor(private s: String, private n: Number) {}
static ngComponentDef = ɵɵdefineComponent({
type: Repeated,
selectors: [['repeated']],
factory: () => new Repeated(ɵɵdirectiveInject(String), ɵɵdirectiveInject(Number)),
consts: 2,
vars: 2,
template: function(fs: RenderFlags, ctx: Repeated) {
if (fs & RenderFlags.Create) {
ɵɵtext(0);
ɵɵtext(1);
}
if (fs & RenderFlags.Update) {
ɵɵtextBinding(0, ɵɵbind(ctx.s));
ɵɵtextBinding(1, ɵɵbind(ctx.n));
}
}
});
}
@Component({
template: `<div>
% for (let i = 0; i < 3; i++) {
<repeated></repeated>
% }
</div>`,
providers: [{provide: Number, useValue: 1, multi: true}],
viewProviders:
[{provide: String, useValue: 'foo'}, {provide: Number, useValue: 2, multi: true}],
})
class ComponentWithProviders {
static ngComponentDef = ɵɵdefineComponent({
type: ComponentWithProviders,
selectors: [['component-with-providers']],
factory: () => new ComponentWithProviders(),
consts: 2,
vars: 0,
template: function(fs: RenderFlags, ctx: ComponentWithProviders) {
if (fs & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
{ ɵɵcontainer(1); }
ɵɵelementEnd();
}
if (fs & RenderFlags.Update) {
ɵɵcontainerRefreshStart(1);
{
for (let i = 0; i < 3; i++) {
let rf1 = ɵɵembeddedViewStart(1, 1, 0);
{
if (rf1 & RenderFlags.Create) {
ɵɵelement(0, 'repeated');
}
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
},
features: [
ɵɵProvidersFeature(
[{provide: Number, useValue: 1, multi: true}],
[{provide: String, useValue: 'foo'}, {provide: Number, useValue: 2, multi: true}]),
],
directives: [Repeated]
});
}
const fixture = new ComponentFixture(ComponentWithProviders);
expect(fixture.html)
.toEqual(
'<div><repeated>foo1,2</repeated><repeated>foo1,2</repeated><repeated>foo1,2</repeated></div>');
});
it('should have access to viewProviders of the repeated component', () => {
@Component({
template: '{{s}}{{n}}',
providers: [{provide: Number, useValue: 1, multi: true}],
viewProviders:
[{provide: String, useValue: 'bar'}, {provide: Number, useValue: 2, multi: true}]
})
class Repeated {
constructor(private s: String, private n: Number) {}
static ngComponentDef = ɵɵdefineComponent({
type: Repeated,
selectors: [['repeated']],
factory: () => new Repeated(ɵɵdirectiveInject(String), ɵɵdirectiveInject(Number)),
consts: 2,
vars: 2,
template: function(fs: RenderFlags, ctx: Repeated) {
if (fs & RenderFlags.Create) {
ɵɵtext(0);
ɵɵtext(1);
}
if (fs & RenderFlags.Update) {
ɵɵtextBinding(0, ɵɵbind(ctx.s));
ɵɵtextBinding(1, ɵɵbind(ctx.n));
}
},
features: [
ɵɵProvidersFeature(
[{provide: Number, useValue: 1, multi: true}],
[{provide: String, useValue: 'bar'}, {provide: Number, useValue: 2, multi: true}]),
],
});
}
@Component({
template: `<div>
% for (let i = 0; i < 3; i++) {
<repeated></repeated>
% }
</div>`,
viewProviders: [{provide: toString, useValue: 'foo'}],
})
class ComponentWithProviders {
static ngComponentDef = ɵɵdefineComponent({
type: ComponentWithProviders,
selectors: [['component-with-providers']],
factory: () => new ComponentWithProviders(),
consts: 2,
vars: 0,
template: function(fs: RenderFlags, ctx: ComponentWithProviders) {
if (fs & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
{ ɵɵcontainer(1); }
ɵɵelementEnd();
}
if (fs & RenderFlags.Update) {
ɵɵcontainerRefreshStart(1);
{
for (let i = 0; i < 3; i++) {
let rf1 = ɵɵembeddedViewStart(1, 1, 0);
{
if (rf1 & RenderFlags.Create) {
ɵɵelement(0, 'repeated');
}
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
},
features: [ɵɵProvidersFeature([], [{provide: String, useValue: 'foo'}])],
directives: [Repeated]
});
}
const fixture = new ComponentFixture(ComponentWithProviders);
expect(fixture.html)
.toEqual(
'<div><repeated>bar1,2</repeated><repeated>bar1,2</repeated><repeated>bar1,2</repeated></div>');
});
});
describe('- dynamic components dependency resolution', () => {
let hostComponent: HostComponent|null = null;
@Component({
template: `{{s}}`,
})
class EmbeddedComponent {
constructor(private s: String) {}
static ngComponentDef = ɵɵdefineComponent({
type: EmbeddedComponent,
selectors: [['embedded-cmp']],
factory: () => new EmbeddedComponent(ɵɵdirectiveInject(String)),
consts: 1,
vars: 1,
template: (rf: RenderFlags, cmp: EmbeddedComponent) => {
if (rf & RenderFlags.Create) {
ɵɵtext(0);
}
if (rf & RenderFlags.Update) {
ɵɵtextBinding(0, ɵɵinterpolation1('', cmp.s, ''));
}
}
});
}
@Component({template: `foo`, providers: [{provide: String, useValue: 'From host component'}]})
class HostComponent {
constructor(public vcref: ViewContainerRef, public cfr: ComponentFactoryResolver) {}
static ngComponentDef = ɵɵdefineComponent({
type: HostComponent,
selectors: [['host-cmp']],
factory: () => hostComponent = new HostComponent(
ɵɵdirectiveInject(ViewContainerRef as any), injectComponentFactoryResolver()),
consts: 1,
vars: 0,
template: (rf: RenderFlags, cmp: HostComponent) => {
if (rf & RenderFlags.Create) {
ɵɵtext(0, 'foo');
}
},
features: [
ɵɵProvidersFeature([{provide: String, useValue: 'From host component'}]),
],
});
}
@Component({
template: `<host-cmp></host-cmp>`,
providers: [{provide: String, useValue: 'From app component'}]
})
class AppComponent {
constructor() {}
static ngComponentDef = ɵɵdefineComponent({
type: AppComponent,
selectors: [['app-cmp']],
factory: () => new AppComponent(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, cmp: AppComponent) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'host-cmp');
}
},
features: [
ɵɵProvidersFeature([{provide: String, useValue: 'From app component'}]),
],
directives: [HostComponent]
});
}
it('should not cross the root view boundary, and use the root view injector', () => {
const fixture = new ComponentFixture(AppComponent);
expect(fixture.html).toEqual('<host-cmp>foo</host-cmp>');
hostComponent !.vcref.createComponent(
hostComponent !.cfr.resolveComponentFactory(EmbeddedComponent), undefined, {
get: (token: any, notFoundValue?: any) => {
return token === String ? 'From custom root view injector' : notFoundValue;
}
});
fixture.update();
expect(fixture.html)
.toEqual(
'<host-cmp>foo</host-cmp><embedded-cmp>From custom root view injector</embedded-cmp>');
});
it('should not cross the root view boundary, and use the module injector if no root view injector',
() => {
const fixture = new ComponentFixture(AppComponent);
expect(fixture.html).toEqual('<host-cmp>foo</host-cmp>');
class MyAppModule {
static ngInjectorDef = ɵɵdefineInjector({
factory: () => new MyAppModule(),
imports: [],
providers: [
{provide: RendererFactory2, useValue: getRendererFactory2(document)},
{provide: String, useValue: 'From module injector'}
]
});
static ngModuleDef: NgModuleDef<any> = { bootstrap: [] } as any;
}
const myAppModuleFactory = new NgModuleFactory(MyAppModule);
const ngModuleRef = myAppModuleFactory.create(null);
hostComponent !.vcref.createComponent(
hostComponent !.cfr.resolveComponentFactory(EmbeddedComponent), undefined,
{get: (token: any, notFoundValue?: any) => notFoundValue}, undefined, ngModuleRef);
fixture.update();
expect(fixture.html)
.toMatch(
/<host-cmp>foo<\/host-cmp><embedded-cmp _nghost-[a-z]+-c(\d+)="">From module injector<\/embedded-cmp>/);
});
it('should cross the root view boundary to the parent of the host, thanks to the default root view injector',
() => {
const fixture = new ComponentFixture(AppComponent);
expect(fixture.html).toEqual('<host-cmp>foo</host-cmp>');
hostComponent !.vcref.createComponent(
hostComponent !.cfr.resolveComponentFactory(EmbeddedComponent));
fixture.update();
expect(fixture.html)
.toEqual('<host-cmp>foo</host-cmp><embedded-cmp>From app component</embedded-cmp>');
});
});
describe('deps boundary:', () => {
it('the deps of a token declared in providers should not be resolved with tokens from viewProviders',
() => {
@Injectable()
class MyService {
constructor(public value: String) {}
static ngInjectableDef =
ɵɵdefineInjectable({factory: () => new MyService(ɵɵinject(String))});
}
expectProvidersScenario({
parent: {
providers: [MyService, {provide: String, useValue: 'providers'}],
viewProviders: [{provide: String, useValue: 'viewProviders'}],
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual('viewProviders');
expect(ɵɵdirectiveInject(MyService).value).toEqual('providers');
}
}
});
});
it('should make sure that parent service does not see overrides in child directives', () => {
class Greeter {
static ngInjectableDef = ɵɵdefineInjectable({factory: () => new Greeter(ɵɵinject(String))});
constructor(public greeting: String) {}
}
expectProvidersScenario({
parent: {
providers: [Greeter, {provide: String, useValue: 'parent'}],
},
viewChild: {
providers: [{provide: String, useValue: 'view'}],
componentAssertion:
() => { expect(ɵɵdirectiveInject(Greeter).greeting).toEqual('parent'); },
},
});
});
});
describe('injection flags', () => {
class MyModule {
static ngInjectorDef = ɵɵdefineInjector(
{factory: () => new MyModule(), providers: [{provide: String, useValue: 'Module'}]});
}
it('should not fall through to ModuleInjector if flags limit the scope', () => {
expectProvidersScenario({
ngModule: MyModule,
parent: {
componentAssertion: () => {
expect(ɵɵdirectiveInject(String)).toEqual('Module');
expect(ɵɵdirectiveInject(String, InjectFlags.Optional | InjectFlags.Self)).toBeNull();
expect(ɵɵdirectiveInject(String, InjectFlags.Optional | InjectFlags.Host)).toBeNull();
}
}
});
});
});
describe('from a node without injector', () => {
abstract class Some { abstract location: String; }
class SomeInj implements Some {
constructor(public location: String) {}
static ngInjectableDef = ɵɵdefineInjectable({factory: () => new SomeInj(ɵɵinject(String))});
}
@Component({
template: `<p></p>`,
providers: [{provide: String, useValue: 'From my component'}],
viewProviders: [{provide: Number, useValue: 123}]
})
class MyComponent {
constructor() {}
static ngComponentDef = ɵɵdefineComponent({
type: MyComponent,
selectors: [['my-cmp']],
factory: () => new MyComponent(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, cmp: MyComponent) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'p');
}
},
features: [
ɵɵProvidersFeature(
[{provide: String, useValue: 'From my component'}],
[{provide: Number, useValue: 123}]),
],
});
}
@Component({
template: `<my-cmp></my-cmp>`,
providers:
[{provide: String, useValue: 'From app component'}, {provide: Some, useClass: SomeInj}]
})
class AppComponent {
constructor() {}
static ngComponentDef = ɵɵdefineComponent({
type: AppComponent,
selectors: [['app-cmp']],
factory: () => new AppComponent(),
consts: 1,
vars: 0,
template: (rf: RenderFlags, cmp: AppComponent) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'my-cmp');
}
},
features: [
ɵɵProvidersFeature([
{provide: String, useValue: 'From app component'}, {provide: Some, useClass: SomeInj}
]),
],
directives: [MyComponent]
});
}
it('should work from within the template', () => {
const fixture = new ComponentFixture(AppComponent);
expect(fixture.html).toEqual('<my-cmp><p></p></my-cmp>');
const p = fixture.hostElement.querySelector('p');
const injector = getInjector(p as any);
expect(injector.get(Number)).toEqual(123);
expect(injector.get(String)).toEqual('From my component');
expect(injector.get(Some).location).toEqual('From app component');
});
it('should work from the host of the component', () => {
const fixture = new ComponentFixture(AppComponent);
expect(fixture.html).toEqual('<my-cmp><p></p></my-cmp>');
const myCmp = fixture.hostElement.querySelector('my-cmp');
const injector = getInjector(myCmp as any);
expect(injector.get(Number)).toEqual(123);
expect(injector.get(String)).toEqual('From my component');
expect(injector.get(Some).location).toEqual('From app component');
});
});
describe('lifecycles', () => {
it('should execute ngOnDestroy hooks on providers (and only this one)', () => {
const logs: string[] = [];
@Injectable()
class InjectableWithLifeCycleHooks {
ngOnChanges() { logs.push('Injectable OnChanges'); }
ngOnInit() { logs.push('Injectable OnInit'); }
ngDoCheck() { logs.push('Injectable DoCheck'); }
ngAfterContentInit() { logs.push('Injectable AfterContentInit'); }
ngAfterContentChecked() { logs.push('Injectable AfterContentChecked'); }
ngAfterViewInit() { logs.push('Injectable AfterViewInit'); }
ngAfterViewChecked() { logs.push('Injectable gAfterViewChecked'); }
ngOnDestroy() { logs.push('Injectable OnDestroy'); }
}
@Component({template: `<span></span>`, providers: [InjectableWithLifeCycleHooks]})
class MyComponent {
constructor(foo: InjectableWithLifeCycleHooks) {}
static ngComponentDef = ɵɵdefineComponent({
type: MyComponent,
selectors: [['my-comp']],
factory: () => new MyComponent(ɵɵdirectiveInject(InjectableWithLifeCycleHooks)),
consts: 1,
vars: 0,
template: (rf: RenderFlags, ctx: MyComponent) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'span');
}
},
features: [ɵɵProvidersFeature([InjectableWithLifeCycleHooks])]
});
}
@Component({
template: `
<div>
% if (ctx.condition) {
<my-comp></my-comp>
% }
</div>
`,
})
class App {
public condition = true;
static ngComponentDef = ɵɵdefineComponent({
type: App,
selectors: [['app-cmp']],
factory: () => new App(),
consts: 2,
vars: 0,
template: (rf: RenderFlags, ctx: App) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
{ ɵɵcontainer(1); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(1);
{
if (ctx.condition) {
let rf1 = ɵɵembeddedViewStart(1, 2, 1);
{
if (rf1 & RenderFlags.Create) {
ɵɵelement(0, 'my-comp');
}
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
},
directives: [MyComponent]
});
}
const fixture = new ComponentFixture(App);
fixture.update();
expect(fixture.html).toEqual('<div><my-comp><span></span></my-comp></div>');
fixture.component.condition = false;
fixture.update();
expect(fixture.html).toEqual('<div></div>');
expect(logs).toEqual(['Injectable OnDestroy']);
});
});
});
interface ComponentTest {
providers?: Provider[];
viewProviders?: Provider[];
directiveProviders?: Provider[];
directive2Providers?: Provider[];
directiveAssertion?: () => void;
componentAssertion?: () => void;
}
function expectProvidersScenario(defs: {
app?: ComponentTest,
parent?: ComponentTest,
viewChild?: ComponentTest,
contentChild?: ComponentTest,
ngModule?: InjectorType<any>,
}): void {
function testComponentInjection<T>(def: ComponentTest | undefined, instance: T): T {
if (def) {
def.componentAssertion && def.componentAssertion();
}
return instance;
}
function testDirectiveInjection<T>(def: ComponentTest | undefined, instance: T): T {
if (def) {
def.directiveAssertion && def.directiveAssertion();
}
return instance;
}
class ViewChildComponent {
static ngComponentDef = ɵɵdefineComponent({
type: ViewChildComponent,
selectors: [['view-child']],
consts: 1,
vars: 0,
factory: () => testComponentInjection(defs.viewChild, new ViewChildComponent()),
template: function(fs: RenderFlags, ctx: ViewChildComponent) {
if (fs & RenderFlags.Create) {
ɵɵtext(0, 'view-child');
}
},
features: defs.viewChild &&
[
ɵɵProvidersFeature(defs.viewChild.providers || [], defs.viewChild.viewProviders || []),
],
});
}
class ViewChildDirective {
static ngDirectiveDef = ɵɵdefineDirective({
type: ViewChildDirective,
selectors: [['view-child']],
factory: () => testDirectiveInjection(defs.viewChild, new ViewChildDirective()),
features: defs.viewChild && [ɵɵProvidersFeature(defs.viewChild.directiveProviders || [])],
});
}
class ContentChildComponent {
static ngComponentDef = ɵɵdefineComponent({
type: ContentChildComponent,
selectors: [['content-child']],
consts: 1,
vars: 0,
factory: () => testComponentInjection(defs.contentChild, new ContentChildComponent()),
template: function(fs: RenderFlags, ctx: ParentComponent) {
if (fs & RenderFlags.Create) {
ɵɵtext(0, 'content-child');
}
},
features: defs.contentChild &&
[ɵɵProvidersFeature(
defs.contentChild.providers || [], defs.contentChild.viewProviders || [])],
});
}
class ContentChildDirective {
static ngDirectiveDef = ɵɵdefineDirective({
type: ContentChildDirective,
selectors: [['content-child']],
factory: () => testDirectiveInjection(defs.contentChild, new ContentChildDirective()),
features:
defs.contentChild && [ɵɵProvidersFeature(defs.contentChild.directiveProviders || [])],
});
}
class ParentComponent {
static ngComponentDef = ɵɵdefineComponent({
type: ParentComponent,
selectors: [['parent']],
consts: 1,
vars: 0,
factory: () => testComponentInjection(defs.parent, new ParentComponent()),
template: function(fs: RenderFlags, ctx: ParentComponent) {
if (fs & RenderFlags.Create) {
ɵɵelement(0, 'view-child');
}
},
features: defs.parent &&
[ɵɵProvidersFeature(defs.parent.providers || [], defs.parent.viewProviders || [])],
directives: [ViewChildComponent, ViewChildDirective]
});
}
class ParentDirective {
static ngDirectiveDef = ɵɵdefineDirective({
type: ParentDirective,
selectors: [['parent']],
factory: () => testDirectiveInjection(defs.parent, new ParentDirective()),
features: defs.parent && [ɵɵProvidersFeature(defs.parent.directiveProviders || [])],
});
}
class ParentDirective2 {
static ngDirectiveDef = ɵɵdefineDirective({
type: ParentDirective2,
selectors: [['parent']],
factory: () => testDirectiveInjection(defs.parent, new ParentDirective2()),
features: defs.parent && [ɵɵProvidersFeature(defs.parent.directive2Providers || [])],
});
}
class App {
static ngComponentDef = ɵɵdefineComponent({
type: App,
selectors: [['app']],
consts: 2,
vars: 0,
factory: () => testComponentInjection(defs.app, new App()),
template: function(fs: RenderFlags, ctx: App) {
if (fs & RenderFlags.Create) {
ɵɵelementStart(0, 'parent');
ɵɵelement(1, 'content-child');
ɵɵelementEnd();
}
},
features:
defs.app && [ɵɵProvidersFeature(defs.app.providers || [], defs.app.viewProviders || [])],
directives: [
ParentComponent, ParentDirective2, ParentDirective, ContentChildComponent,
ContentChildDirective
]
});
}
const fixture = new ComponentFixture(
App, {injector: defs.ngModule ? createInjector(defs.ngModule) : undefined});
expect(fixture.html).toEqual('<parent><view-child>view-child</view-child></parent>');
}