refactor(ivy): move di tests for directive injection to acceptance (#29299)

PR Close #29299
This commit is contained in:
cexbrayat 2019-03-29 12:30:52 +01:00 committed by Andrew Kushnir
parent 47244ba2b8
commit 1b0be8d656
2 changed files with 477 additions and 693 deletions

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@ -7,13 +7,480 @@
*/ */
import {CommonModule} from '@angular/common'; import {CommonModule} from '@angular/common';
import {Attribute, ChangeDetectorRef, Component, Directive, ElementRef, EventEmitter, INJECTOR, Inject, Injector, Input, LOCALE_ID, Optional, Output, Pipe, PipeTransform, SkipSelf, TemplateRef, ViewChild, ViewContainerRef} from '@angular/core'; import {Attribute, ChangeDetectorRef, Component, Directive, ElementRef, EventEmitter, HostBinding, INJECTOR, Inject, Injectable, Injector, Input, LOCALE_ID, Optional, Output, Pipe, PipeTransform, SkipSelf, TemplateRef, ViewChild, ViewContainerRef, forwardRef} from '@angular/core';
import {ViewRef} from '@angular/core/src/render3/view_ref'; import {ViewRef} from '@angular/core/src/render3/view_ref';
import {TestBed} from '@angular/core/testing'; import {TestBed} from '@angular/core/testing';
import {onlyInIvy} from '@angular/private/testing'; import {onlyInIvy} from '@angular/private/testing';
describe('di', () => { describe('di', () => {
describe('no dependencies', () => {
it('should create directive with no deps', () => {
@Directive({selector: '[dir]', exportAs: 'dir'})
class MyDirective {
value = 'Created';
}
@Component({template: '<div dir #dir="dir">{{ dir.value }}</div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [MyDirective, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toContain('Created');
});
});
describe('directive injection', () => {
let log: string[] = [];
@Directive({selector: '[dirB]', exportAs: 'dirB'})
class DirectiveB {
@Input() value = 'DirB';
constructor() { log.push(this.value); }
}
beforeEach(() => log = []);
it('should create directive with intra view dependencies', () => {
@Directive({selector: '[dirA]', exportAs: 'dirA'})
class DirectiveA {
value = 'DirA';
}
@Directive({selector: '[dirC]', exportAs: 'dirC'})
class DirectiveC {
value: string;
constructor(dirA: DirectiveA, dirB: DirectiveB) { this.value = dirA.value + dirB.value; }
}
@Component({
template: `
<div dirA>
<span dirB dirC #dir="dirC">{{ dir.value }}</span>
</div>
`
})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, DirectiveC, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('span');
expect(divElement.textContent).toContain('DirADirB');
});
it('should instantiate injected directives in dependency order', () => {
@Directive({selector: '[dirA]'})
class DirectiveA {
value = 'dirA';
constructor(dirB: DirectiveB) { log.push(`DirA (dep: ${dirB.value})`); }
}
@Component({template: '<div dirA dirB></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
expect(log).toEqual(['DirB', 'DirA (dep: DirB)']);
});
it('should fallback to the module injector', () => {
@Directive({selector: '[dirA]'})
class DirectiveA {
value = 'dirA';
constructor(dirB: DirectiveB) { log.push(`DirA (dep: ${dirB.value})`); }
}
// - dirB is know to the node injectors
// - then when dirA tries to inject dirB, it will check the node injector first tree
// - if not found, it will check the module injector tree
@Component({template: '<div dirB></div><div dirA></div>'})
class MyComp {
}
TestBed.configureTestingModule({
declarations: [DirectiveA, DirectiveB, MyComp],
providers: [{provide: DirectiveB, useValue: {value: 'module'}}]
});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
expect(log).toEqual(['DirB', 'DirA (dep: module)']);
});
it('should instantiate injected directives before components', () => {
@Component({selector: 'my-comp', template: ''})
class MyComp {
constructor(dirB: DirectiveB) { log.push(`Comp (dep: ${dirB.value})`); }
}
@Component({template: '<my-comp dirB></my-comp>'})
class MyApp {
}
TestBed.configureTestingModule({declarations: [DirectiveB, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
expect(log).toEqual(['DirB', 'Comp (dep: DirB)']);
});
it('should inject directives in the correct order in a for loop', () => {
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(dir: DirectiveB) { log.push(`DirA (dep: ${dir.value})`); }
}
@Component({template: '<div dirA dirB *ngFor="let i of array"></div>'})
class MyComp {
array = [1, 2, 3];
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
expect(log).toEqual(
['DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)']);
});
it('should instantiate directives with multiple out-of-order dependencies', () => {
@Directive({selector: '[dirA]'})
class DirectiveA {
value = 'DirA';
constructor() { log.push(this.value); }
}
@Directive({selector: '[dirC]'})
class DirectiveC {
value = 'DirC';
constructor() { log.push(this.value); }
}
@Directive({selector: '[dirB]'})
class DirectiveB {
constructor(dirA: DirectiveA, dirC: DirectiveC) {
log.push(`DirB (deps: ${dirA.value} and ${dirC.value})`);
}
}
@Component({template: '<div dirA dirB dirC></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, DirectiveC, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
expect(log).toEqual(['DirA', 'DirC', 'DirB (deps: DirA and DirC)']);
});
it('should instantiate in the correct order for complex case', () => {
@Directive({selector: '[dirC]'})
class DirectiveC {
value = 'DirC';
constructor(dirB: DirectiveB) { log.push(`DirC (dep: ${dirB.value})`); }
}
@Directive({selector: '[dirA]'})
class DirectiveA {
value = 'DirA';
constructor(dirC: DirectiveC) { log.push(`DirA (dep: ${dirC.value})`); }
}
@Directive({selector: '[dirD]'})
class DirectiveD {
value = 'DirD';
constructor(dirA: DirectiveA) { log.push(`DirD (dep: ${dirA.value})`); }
}
@Component({selector: 'my-comp', template: ''})
class MyComp {
constructor(dirD: DirectiveD) { log.push(`Comp (dep: ${dirD.value})`); }
}
@Component({template: '<my-comp dirA dirB dirC dirD></my-comp>'})
class MyApp {
}
TestBed.configureTestingModule(
{declarations: [DirectiveA, DirectiveB, DirectiveC, DirectiveD, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
expect(log).toEqual(
['DirB', 'DirC (dep: DirB)', 'DirA (dep: DirC)', 'DirD (dep: DirA)', 'Comp (dep: DirD)']);
});
it('should instantiate in correct order with mixed parent and peer dependencies', () => {
@Component({template: '<div dirA dirB dirC></div>'})
class MyApp {
value = 'App';
}
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(dirB: DirectiveB, app: MyApp) {
log.push(`DirA (deps: ${dirB.value} and ${app.value})`);
}
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
expect(log).toEqual(['DirB', 'DirA (deps: DirB and App)']);
});
it('should not use a parent when peer dep is available', () => {
let count = 1;
@Directive({selector: '[dirB]'})
class DirectiveB {
count: number;
constructor() {
log.push(`DirB`);
this.count = count++;
}
}
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(dirB: DirectiveB) { log.push(`DirA (dep: DirB - ${dirB.count})`); }
}
@Component({selector: 'my-comp', template: '<div dirA dirB></div>'})
class MyComp {
}
@Component({template: '<my-comp dirB></my-comp>'})
class MyApp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
expect(log).toEqual(['DirB', 'DirB', 'DirA (dep: DirB - 2)']);
});
describe('dependencies in parent views', () => {
@Directive({selector: '[dirA]', exportAs: 'dirA'})
class DirectiveA {
injector: Injector;
constructor(public dirB: DirectiveB, public vcr: ViewContainerRef) {
this.injector = vcr.injector;
}
}
@Component(
{selector: 'my-comp', template: '<div dirA #dir="dirA">{{ dir.dirB.value }}</div>'})
class MyComp {
}
it('should find dependencies on component hosts', () => {
@Component({template: '<my-comp dirB></my-comp>'})
class MyApp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('DirB');
});
it('should find dependencies for directives in embedded views', () => {
@Component({
template: `<div dirB>
<div *ngIf="showing">
<div dirA #dir="dirA">{{ dir.dirB.value }}</div>
</div>
</div>`
})
class MyApp {
showing = false;
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.componentInstance.showing = true;
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('DirB');
});
it('should find dependencies of directives nested deeply in inline views', () => {
@Component({
template: `<div dirB>
<ng-container *ngIf="!skipContent">
<ng-container *ngIf="!skipContent2">
<div dirA #dir="dirA">{{ dir.dirB.value }}</div>
</ng-container>
</ng-container>
</div>`
})
class MyApp {
skipContent = false;
skipContent2 = false;
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('DirB');
});
it('should find dependencies in declaration tree of ng-template (not insertion tree)', () => {
@Directive({selector: '[structuralDir]'})
class StructuralDirective {
@Input() tmp !: TemplateRef<any>;
constructor(public vcr: ViewContainerRef) {}
create() { this.vcr.createEmbeddedView(this.tmp); }
}
@Component({
template: `<div dirB value="declaration">
<ng-template #foo>
<div dirA #dir="dirA">{{ dir.dirB.value }}</div>
</ng-template>
</div>
<div dirB value="insertion">
<div structuralDir [tmp]="foo"></div>
<!-- insertion point -->
</div>`
})
class MyComp {
@ViewChild(StructuralDirective) structuralDir !: StructuralDirective;
}
TestBed.configureTestingModule(
{declarations: [StructuralDirective, DirectiveA, DirectiveB, MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
fixture.componentInstance.structuralDir.create();
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div[value=insertion]');
expect(divElement.textContent).toEqual('declaration');
});
it('should create injectors on second template pass', () => {
@Component({
template: `<div>
<my-comp dirB></my-comp>
<my-comp dirB></my-comp>
</div>`
})
class MyApp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('DirBDirB');
});
it('should create injectors and host bindings in same view', () => {
@Directive({selector: '[hostBindingDir]'})
class HostBindingDirective {
@HostBinding('id') id = 'foo';
}
@Component({
template: `<div dirB hostBindingDir>
<p dirA #dir="dirA">{{ dir.dirB.value }}</p>
</div>`
})
class MyApp {
@ViewChild(HostBindingDirective) hostBindingDir !: HostBindingDirective;
@ViewChild(DirectiveA) dirA !: DirectiveA;
}
TestBed.configureTestingModule(
{declarations: [DirectiveA, DirectiveB, HostBindingDirective, MyApp]});
const fixture = TestBed.createComponent(MyApp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('DirB');
expect(divElement.id).toEqual('foo');
const dirA = fixture.componentInstance.dirA;
expect(dirA.vcr.injector).toEqual(dirA.injector);
const hostBindingDir = fixture.componentInstance.hostBindingDir;
hostBindingDir.id = 'bar';
fixture.detectChanges();
expect(divElement.id).toBe('bar');
});
});
it('should throw if directive is not found anywhere', () => {
@Directive({selector: '[dirB]'})
class DirectiveB {
constructor() {}
}
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(siblingDir: DirectiveB) {}
}
@Component({template: '<div dirA></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
expect(() => TestBed.createComponent(MyComp)).toThrowError(/No provider for DirectiveB/);
});
it('should throw if directive is not found in ancestor tree', () => {
@Directive({selector: '[dirB]'})
class DirectiveB {
constructor() {}
}
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(siblingDir: DirectiveB) {}
}
@Component({template: '<div dirA></div><div dirB></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
expect(() => TestBed.createComponent(MyComp)).toThrowError(/No provider for DirectiveB/);
});
onlyInIvy('Ivy has different error message for circular dependency')
.it('should throw if directives try to inject each other', () => {
@Directive({selector: '[dirB]'})
class DirectiveB {
constructor(@Inject(forwardRef(() => DirectiveA)) siblingDir: DirectiveA) {}
}
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(siblingDir: DirectiveB) {}
}
@Component({template: '<div dirA dirB></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
expect(() => TestBed.createComponent(MyComp)).toThrowError(/Circular dep for/);
});
onlyInIvy('Ivy has different error message for circular dependency')
.it('should throw if directive tries to inject itself', () => {
@Directive({selector: '[dirA]'})
class DirectiveA {
constructor(siblingDir: DirectiveA) {}
}
@Component({template: '<div dirA></div>'})
class MyComp {
}
TestBed.configureTestingModule({declarations: [DirectiveA, DirectiveB, MyComp]});
expect(() => TestBed.createComponent(MyComp)).toThrowError(/Circular dep for/);
});
});
describe('service injection', () => {
it('should create instance even when no injector present', () => {
@Injectable({providedIn: 'root'})
class MyService {
value = 'MyService';
}
@Component({template: '<div>{{myService.value}}</div>'})
class MyComp {
constructor(public myService: MyService) {}
}
TestBed.configureTestingModule({declarations: [MyComp]});
const fixture = TestBed.createComponent(MyComp);
fixture.detectChanges();
const divElement = fixture.nativeElement.querySelector('div');
expect(divElement.textContent).toEqual('MyService');
});
});
describe('Special tokens', () => { describe('Special tokens', () => {
describe('Injector', () => { describe('Injector', () => {

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@ -6,14 +6,14 @@
* found in the LICENSE file at https://angular.io/license * found in the LICENSE file at https://angular.io/license
*/ */
import {ChangeDetectorRef, Host, Inject, InjectFlags, Injector, Optional, Renderer2, Self, SkipSelf, TemplateRef, ViewContainerRef, ɵɵdefineInjectable, ɵɵdefineInjector} from '@angular/core'; import {ChangeDetectorRef, Host, Inject, InjectFlags, Injector, Optional, Renderer2, Self, SkipSelf, ViewContainerRef, ɵɵdefineInjector} from '@angular/core';
import {createLView, createNodeAtIndex, createTView} from '@angular/core/src/render3/instructions/shared'; import {createLView, createNodeAtIndex, createTView} from '@angular/core/src/render3/instructions/shared';
import {ComponentType, RenderFlags} from '@angular/core/src/render3/interfaces/definition'; import {ComponentType, RenderFlags} from '@angular/core/src/render3/interfaces/definition';
import {createInjector} from '../../src/di/r3_injector'; import {createInjector} from '../../src/di/r3_injector';
import {ɵɵdefineComponent} from '../../src/render3/definition'; import {ɵɵdefineComponent} from '../../src/render3/definition';
import {bloomAdd, bloomHasToken, bloomHashBitOrFactory as bloomHash, getOrCreateNodeInjectorForNode} from '../../src/render3/di'; import {bloomAdd, bloomHasToken, bloomHashBitOrFactory as bloomHash, getOrCreateNodeInjectorForNode} from '../../src/render3/di';
import {ɵɵProvidersFeature, ɵɵallocHostVars, ɵɵbind, ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵdefineDirective, ɵɵdirectiveInject, ɵɵelement, ɵɵelementEnd, ɵɵelementProperty, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵinterpolation2, ɵɵprojection, ɵɵprojectionDef, ɵɵreference, ɵɵtemplate, ɵɵtemplateRefExtractor, ɵɵtext, ɵɵtextBinding} from '../../src/render3/index'; import {ɵɵProvidersFeature, ɵɵbind, ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵdefineDirective, ɵɵdirectiveInject, ɵɵelement, ɵɵelementEnd, ɵɵelementProperty, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵinterpolation2, ɵɵprojection, ɵɵprojectionDef, ɵɵreference, ɵɵtemplate, ɵɵtext, ɵɵtextBinding} from '../../src/render3/index';
import {TNODE} from '../../src/render3/interfaces/injector'; import {TNODE} from '../../src/render3/interfaces/injector';
import {AttributeMarker, TNodeType} from '../../src/render3/interfaces/node'; import {AttributeMarker, TNodeType} from '../../src/render3/interfaces/node';
import {isProceduralRenderer} from '../../src/render3/interfaces/renderer'; import {isProceduralRenderer} from '../../src/render3/interfaces/renderer';
@ -26,36 +26,6 @@ import {getRendererFactory2} from './imported_renderer2';
import {ComponentFixture, createComponent, createDirective, getDirectiveOnNode, renderComponent, toHtml} from './render_util'; import {ComponentFixture, createComponent, createDirective, getDirectiveOnNode, renderComponent, toHtml} from './render_util';
describe('di', () => { describe('di', () => {
describe('no dependencies', () => {
it('should create directive with no deps', () => {
class Directive {
value: string = 'Created';
static ngDirectiveDef = ɵɵdefineDirective({
type: Directive,
selectors: [['', 'dir', '']],
factory: () => new Directive,
exportAs: ['dir']
});
}
/** <div dir #dir="dir"> {{ dir.value }} </div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dir', ''], ['dir', 'dir']);
{ ɵɵtext(2); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const tmp = ɵɵreference(1) as any;
ɵɵtextBinding(2, ɵɵbind(tmp.value));
}
}, 3, 1, [Directive]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<div dir="">Created</div>');
});
});
describe('directive injection', () => { describe('directive injection', () => {
let log: string[] = []; let log: string[] = [];
@ -73,129 +43,10 @@ describe('di', () => {
beforeEach(() => log = []); beforeEach(() => log = []);
it('should create directive with intra view dependencies', () => {
class DirA {
value: string = 'DirA';
static ngDirectiveDef = ɵɵdefineDirective(
{type: DirA, selectors: [['', 'dirA', '']], factory: () => new DirA()});
}
class DirC {
value: string;
constructor(a: DirA, b: DirB) { this.value = a.value + b.value; }
static ngDirectiveDef = ɵɵdefineDirective({
type: DirC,
selectors: [['', 'dirC', '']],
factory: () => new DirC(ɵɵdirectiveInject(DirA), ɵɵdirectiveInject(DirB)),
exportAs: ['dirC']
});
}
/** /**
* <div dirA> * This test needs to be moved to acceptance/di_spec.ts
* <span dirB dirC #dir="dirC"> {{ dir.value }} </span> * when Ivy compiler supports inline views.
* </div>
*/ */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirA', '']);
{
ɵɵelementStart(1, 'span', ['dirB', '', 'dirC', ''], ['dir', 'dirC']);
{ ɵɵtext(3); }
ɵɵelementEnd();
}
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const tmp = ɵɵreference(2) as any;
ɵɵtextBinding(3, ɵɵbind(tmp.value));
}
}, 4, 1, [DirA, DirB, DirC]);
const fixture = new ComponentFixture(App);
expect(fixture.html).toEqual('<div dira=""><span dirb="" dirc="">DirADirB</span></div>');
});
it('should instantiate injected directives in dependency order', () => {
class DirA {
constructor(dir: DirB) { log.push(`DirA (dep: ${dir.value})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirB)),
});
}
/** <div dirA dirB></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '']);
}
}, 1, 0, [DirA, DirB]);
new ComponentFixture(App);
expect(log).toEqual(['DirB', 'DirA (dep: DirB)']);
});
it('should fallback to the module injector', () => {
class DirA {
constructor(dir: DirB) { log.push(`DirA (dep: ${dir.value})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirB)),
});
}
// `<div dirB></div><div dirA></div>`
// - dirB is know to the node injectors (it uses the diPublic feature)
// - then when dirA tries to inject dirB, it will check the node injector first tree
// - if not found, it will check the module injector tree
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirB', '']);
ɵɵelement(1, 'div', ['dirA', '']);
}
}, 2, 0, [DirA, DirB]);
const fakeModuleInjector: any = {
get: function(token: any) {
const value = token === DirB ? 'module' : 'fail';
return {value: value};
}
};
new ComponentFixture(App, {injector: fakeModuleInjector});
expect(log).toEqual(['DirB', 'DirA (dep: module)']);
});
it('should instantiate injected directives before components', () => {
class Comp {
constructor(dir: DirB) { log.push(`Comp (dep: ${dir.value})`); }
static ngComponentDef = ɵɵdefineComponent({
selectors: [['comp']],
type: Comp,
consts: 0,
vars: 0,
factory: () => new Comp(ɵɵdirectiveInject(DirB)),
template: (rf: RenderFlags, ctx: Comp) => {}
});
}
/** <comp dirB></comp> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'comp', ['dirB', '']);
}
}, 1, 0, [Comp, DirB]);
new ComponentFixture(App);
expect(log).toEqual(['DirB', 'Comp (dep: DirB)']);
});
it('should inject directives in the correct order in a for loop', () => { it('should inject directives in the correct order in a for loop', () => {
class DirA { class DirA {
constructor(dir: DirB) { log.push(`DirA (dep: ${dir.value})`); } constructor(dir: DirB) { log.push(`DirA (dep: ${dir.value})`); }
@ -235,184 +86,6 @@ describe('di', () => {
['DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)']); ['DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)']);
}); });
it('should instantiate directives with multiple out-of-order dependencies', () => {
class DirA {
value = 'DirA';
constructor() { log.push(this.value); }
static ngDirectiveDef = ɵɵdefineDirective(
{selectors: [['', 'dirA', '']], type: DirA, factory: () => new DirA()});
}
class DirB {
constructor(dirA: DirA, dirC: DirC) {
log.push(`DirB (deps: ${dirA.value} and ${dirC.value})`);
}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirB', '']],
type: DirB,
factory: () => new DirB(ɵɵdirectiveInject(DirA), ɵɵdirectiveInject(DirC))
});
}
class DirC {
value = 'DirC';
constructor() { log.push(this.value); }
static ngDirectiveDef = ɵɵdefineDirective(
{selectors: [['', 'dirC', '']], type: DirC, factory: () => new DirC()});
}
/** <div dirA dirB dirC></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '', 'dirC', '']);
}
}, 1, 0, [DirA, DirB, DirC]);
new ComponentFixture(App);
expect(log).toEqual(['DirA', 'DirC', 'DirB (deps: DirA and DirC)']);
});
it('should instantiate in the correct order for complex case', () => {
class Comp {
constructor(dir: DirD) { log.push(`Comp (dep: ${dir.value})`); }
static ngComponentDef = ɵɵdefineComponent({
selectors: [['comp']],
type: Comp,
consts: 0,
vars: 0,
factory: () => new Comp(ɵɵdirectiveInject(DirD)),
template: (ctx: any, fm: boolean) => {}
});
}
class DirA {
value = 'DirA';
constructor(dir: DirC) { log.push(`DirA (dep: ${dir.value})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirC))
});
}
class DirC {
value = 'DirC';
constructor(dir: DirB) { log.push(`DirC (dep: ${dir.value})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirC', '']],
type: DirC,
factory: () => new DirC(ɵɵdirectiveInject(DirB))
});
}
class DirD {
value = 'DirD';
constructor(dir: DirA) { log.push(`DirD (dep: ${dir.value})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirD', '']],
type: DirD,
factory: () => new DirD(ɵɵdirectiveInject(DirA))
});
}
/** <comp dirA dirB dirC dirD></comp> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'comp', ['dirA', '', 'dirB', '', 'dirC', '', 'dirD', '']);
}
}, 1, 0, [Comp, DirA, DirB, DirC, DirD]);
new ComponentFixture(App);
expect(log).toEqual(
['DirB', 'DirC (dep: DirB)', 'DirA (dep: DirC)', 'DirD (dep: DirA)', 'Comp (dep: DirD)']);
});
it('should instantiate in correct order with mixed parent and peer dependencies', () => {
class DirA {
constructor(dirB: DirB, app: App) {
log.push(`DirA (deps: ${dirB.value} and ${app.value})`);
}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirB), ɵɵdirectiveInject(App)),
});
}
class App {
value = 'App';
static ngComponentDef = ɵɵdefineComponent({
selectors: [['app']],
type: App,
factory: () => new App(),
consts: 1,
vars: 0,
/** <div dirA dirB dirC></div> */
template: (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '', 'dirC', 'dirC']);
}
},
directives: [DirA, DirB]
});
}
new ComponentFixture(App);
expect(log).toEqual(['DirB', 'DirA (deps: DirB and App)']);
});
it('should not use a parent when peer dep is available', () => {
let count = 1;
class DirA {
constructor(dirB: DirB) { log.push(`DirA (dep: DirB - ${dirB.count})`); }
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirB)),
});
}
class DirB {
count: number;
constructor() {
log.push(`DirB`);
this.count = count++;
}
static ngDirectiveDef = ɵɵdefineDirective(
{selectors: [['', 'dirB', '']], type: DirB, factory: () => new DirB()});
}
/** <div dirA dirB></div> */
const Parent = createComponent('parent', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '']);
}
}, 1, 0, [DirA, DirB]);
/** <parent dirB></parent> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'parent', ['dirB', '']);
}
}, 1, 0, [Parent, DirB]);
new ComponentFixture(App);
expect(log).toEqual(['DirB', 'DirB', 'DirA (dep: DirB - 2)']);
});
describe('dependencies in parent views', () => { describe('dependencies in parent views', () => {
class DirA { class DirA {
@ -431,78 +104,9 @@ describe('di', () => {
} }
/** /**
* <div dirA #dir="dirA"> * This test needs to be moved to acceptance/di_spec.ts
* {{ dir.dirB.value }} * when Ivy compiler supports inline views.
* </div>
*/ */
const Comp = createComponent('comp', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirA', ''], ['dir', 'dirA']);
{ ɵɵtext(2); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const dir = ɵɵreference(1) as DirA;
ɵɵtextBinding(2, ɵɵbind(dir.dirB.value));
}
}, 3, 1, [DirA]);
it('should find dependencies on component hosts', () => {
/** <comp dirB>/comp> */
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'comp', ['dirB', '']);
}
}, 1, 0, [Comp, DirB]);
const fixture = new ComponentFixture(App);
expect(fixture.hostElement.textContent).toEqual(`DirB`);
});
it('should find dependencies for directives in embedded views', () => {
function IfTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div');
{
ɵɵelementStart(1, 'div', ['dirA', ''], ['dir', 'dirA']);
{ ɵɵtext(3); }
ɵɵelementEnd();
}
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const dir = ɵɵreference(2) as DirA;
ɵɵtextBinding(3, ɵɵbind(dir.dirB.value));
}
}
/**
* <div dirB>
* <div *ngIf="showing">
* <div dirA #dir="dirA"> {{ dir.dirB.value }} </div>
* </div>
* </div>
*/
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirB', '']);
{ ɵɵtemplate(1, IfTemplate, 4, 1, 'div', [AttributeMarker.Template, 'ngIf']); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
ɵɵelementProperty(1, 'ngIf', ɵɵbind(ctx.showing));
}
}, 2, 1, [DirA, DirB, NgIf]);
const fixture = new ComponentFixture(App);
fixture.component.showing = true;
fixture.update();
expect(fixture.hostElement.textContent).toEqual(`DirB`);
});
it('should find dependencies of directives nested deeply in inline views', () => { it('should find dependencies of directives nested deeply in inline views', () => {
/** /**
* <div dirB> * <div dirB>
@ -560,293 +164,6 @@ describe('di', () => {
const fixture = new ComponentFixture(App); const fixture = new ComponentFixture(App);
expect(fixture.hostElement.textContent).toEqual(`DirB`); expect(fixture.hostElement.textContent).toEqual(`DirB`);
}); });
it('should find dependencies in declaration tree of ng-template (not insertion tree)', () => {
let structuralDir !: StructuralDir;
class StructuralDir {
// @Input()
tmp !: TemplateRef<any>;
constructor(public vcr: ViewContainerRef) {}
create() { this.vcr.createEmbeddedView(this.tmp); }
static ngDirectiveDef = ɵɵdefineDirective({
type: StructuralDir,
selectors: [['', 'structuralDir', '']],
factory: () => structuralDir =
new StructuralDir(ɵɵdirectiveInject(ViewContainerRef as any)),
inputs: {tmp: 'tmp'}
});
}
function FooTemplate(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirA', ''], ['dir', 'dirA']);
{ ɵɵtext(2); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const dir = ɵɵreference(1) as DirA;
ɵɵtextBinding(2, ɵɵbind(dir.dirB.value));
}
}
/**
* <div dirB value="declaration">
* <ng-template #foo>
* <div dirA dir="dirA"> {{ dir.dirB.value }} </div>
* </ng-template>
* </div>
*
* <div dirB value="insertion">
* <div structuralDir [tmp]="foo"></div>
* // insertion point
* </div>
*/
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirB', '', 'value', 'declaration']);
{
ɵɵtemplate(
1, FooTemplate, 3, 1, 'ng-template', null, ['foo', ''], ɵɵtemplateRefExtractor);
}
ɵɵelementEnd();
ɵɵelementStart(3, 'div', ['dirB', '', 'value', 'insertion']);
{ ɵɵelement(4, 'div', ['structuralDir', '']); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const foo = ɵɵreference(2) as any;
ɵɵelementProperty(4, 'tmp', ɵɵbind(foo));
}
}, 5, 1, [DirA, DirB, StructuralDir]);
const fixture = new ComponentFixture(App);
structuralDir.create();
fixture.update();
expect(fixture.hostElement.textContent).toEqual(`declaration`);
});
it('should create injectors on second template pass', () => {
/**
* <comp dirB></comp>
* <comp dirB></comp>
*/
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'comp', ['dirB', '']);
ɵɵelement(1, 'comp', ['dirB', '']);
}
}, 2, 0, [Comp, DirB]);
const fixture = new ComponentFixture(App);
expect(fixture.hostElement.textContent).toEqual(`DirBDirB`);
});
it('should create injectors and host bindings in same view', () => {
let hostBindingDir !: HostBindingDir;
class HostBindingDir {
// @HostBinding('id')
id = 'foo';
static ngDirectiveDef = ɵɵdefineDirective({
type: HostBindingDir,
selectors: [['', 'hostBindingDir', '']],
factory: () => hostBindingDir = new HostBindingDir(),
hostBindings: (rf: RenderFlags, ctx: any, elementIndex: number) => {
if (rf & RenderFlags.Create) {
ɵɵallocHostVars(1);
}
if (rf & RenderFlags.Update) {
ɵɵelementProperty(elementIndex, 'id', ɵɵbind(ctx.id));
}
}
});
}
let dir !: DirA;
/**
* <div dirB hostBindingDir>
* <p dirA #dir="dirA">
* {{ dir.dirB.value }}
* </p>
* </div>
*/
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', [
'dirB',
'',
'hostBindingDir',
'',
]);
{
ɵɵelementStart(1, 'p', ['dirA', ''], ['dir', 'dirA']);
{ ɵɵtext(3); }
ɵɵelementEnd();
}
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
dir = ɵɵreference(2) as DirA;
ɵɵtextBinding(3, ɵɵbind(dir.dirB.value));
}
}, 4, 1, [HostBindingDir, DirA, DirB]);
const fixture = new ComponentFixture(App);
expect(fixture.hostElement.textContent).toEqual(`DirB`);
const hostDirEl = fixture.hostElement.querySelector('div') as HTMLElement;
expect(hostDirEl.id).toEqual('foo');
// The injector should not be overwritten by host bindings
expect(dir.vcr.injector).toEqual(dir.injector);
hostBindingDir.id = 'bar';
fixture.update();
expect(hostDirEl.id).toEqual('bar');
});
});
it('should create instance even when no injector present', () => {
class MyService {
value = 'MyService';
static ngInjectableDef =
ɵɵdefineInjectable({providedIn: 'root', factory: () => new MyService()});
}
class MyComponent {
constructor(public myService: MyService) {}
static ngComponentDef = ɵɵdefineComponent({
type: MyComponent,
selectors: [['my-component']],
consts: 1,
vars: 1,
factory: () => new MyComponent(ɵɵdirectiveInject(MyService)),
template: function(rf: RenderFlags, ctx: MyComponent) {
if (rf & RenderFlags.Create) {
ɵɵtext(0);
}
if (rf & RenderFlags.Update) {
ɵɵtextBinding(0, ɵɵbind(ctx.myService.value));
}
}
});
}
const fixture = new ComponentFixture(MyComponent);
fixture.update();
expect(fixture.html).toEqual('MyService');
});
it('should throw if directive is not found anywhere', () => {
class Dir {
constructor(siblingDir: OtherDir) {}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dir', '']],
type: Dir,
factory: () => new Dir(ɵɵdirectiveInject(OtherDir))
});
}
class OtherDir {
static ngDirectiveDef = ɵɵdefineDirective(
{selectors: [['', 'other', '']], type: OtherDir, factory: () => new OtherDir()});
}
/** <div dir></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dir', '']);
}
}, 1, 0, [Dir, OtherDir]);
expect(() => new ComponentFixture(App)).toThrowError(/Injector: NOT_FOUND \[OtherDir\]/);
});
it('should throw if directive is not found in ancestor tree', () => {
class Dir {
constructor(siblingDir: OtherDir) {}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dir', '']],
type: Dir,
factory: () => new Dir(ɵɵdirectiveInject(OtherDir))
});
}
class OtherDir {
static ngDirectiveDef = ɵɵdefineDirective(
{selectors: [['', 'other', '']], type: OtherDir, factory: () => new OtherDir()});
}
/**
* <div other></div>
* <div dir></div>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['other', '']);
ɵɵelement(1, 'div', ['dir', '']);
}
}, 2, 0, [Dir, OtherDir]);
expect(() => new ComponentFixture(App)).toThrowError(/Injector: NOT_FOUND \[OtherDir\]/);
});
it('should throw if directives try to inject each other', () => {
class DirA {
constructor(dir: DirB) {}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirA', '']],
type: DirA,
factory: () => new DirA(ɵɵdirectiveInject(DirB))
});
}
class DirB {
constructor(dir: DirA) {}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dirB', '']],
type: DirB,
factory: () => new DirB(ɵɵdirectiveInject(DirA))
});
}
/** <div dirA dirB></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '']);
}
}, 1, 0, [DirA, DirB]);
expect(() => new ComponentFixture(App)).toThrowError(/Circular dep for/);
});
it('should throw if directive tries to inject itself', () => {
class Dir {
constructor(dir: Dir) {}
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'dir', '']],
type: Dir,
factory: () => new Dir(ɵɵdirectiveInject(Dir))
});
}
/** <div dir></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dir', '']);
}
}, 1, 0, [Dir]);
expect(() => new ComponentFixture(App)).toThrowError(/Circular dep for/);
}); });
describe('flags', () => { describe('flags', () => {