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

611 lines
22 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 {ChangeDetectorRef, Host, InjectFlags, Injector, Optional, Renderer2, Self, ViewContainerRef} from '@angular/core';
import {createLView, createTView, getOrCreateTNode} from '@angular/core/src/render3/instructions/shared';
import {RenderFlags} from '@angular/core/src/render3/interfaces/definition';
import {ɵɵdefineComponent} from '../../src/render3/definition';
import {bloomAdd, bloomHasToken, bloomHashBitOrFactory as bloomHash, getOrCreateNodeInjectorForNode} from '../../src/render3/di';
import {ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵdefineDirective, ɵɵdirectiveInject, ɵɵelement, ɵɵelementEnd, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵprojection, ɵɵprojectionDef, ɵɵreference, ɵɵselect, ɵɵtext, ɵɵtextInterpolate, ɵɵtextInterpolate2} from '../../src/render3/index';
import {TNODE} from '../../src/render3/interfaces/injector';
import {TNodeType} from '../../src/render3/interfaces/node';
import {isProceduralRenderer} from '../../src/render3/interfaces/renderer';
import {LViewFlags, TVIEW} from '../../src/render3/interfaces/view';
import {selectView} from '../../src/render3/state';
import {ViewRef} from '../../src/render3/view_ref';
import {getRendererFactory2} from './imported_renderer2';
import {ComponentFixture, createComponent, createDirective, getDirectiveOnNode, renderComponent, toHtml} from './render_util';
describe('di', () => {
describe('directive injection', () => {
let log: string[] = [];
class DirB {
value = 'DirB';
constructor() { log.push(this.value); }
static ngFactoryDef = () => new DirB();
static ngDirectiveDef =
ɵɵdefineDirective({selectors: [['', 'dirB', '']], type: DirB, inputs: {value: 'value'}});
}
beforeEach(() => log = []);
/**
* This test needs to be moved to acceptance/di_spec.ts
* when Ivy compiler supports inline views.
*/
it('should inject directives in the correct order in a for loop', () => {
class DirA {
constructor(dir: DirB) { log.push(`DirA (dep: ${dir.value})`); }
static ngFactoryDef = () => new DirA(ɵɵdirectiveInject(DirB));
static ngDirectiveDef = ɵɵdefineDirective({selectors: [['', 'dirA', '']], type: DirA});
}
/**
* % for(let i = 0; i < 3; i++) {
* <div dirA dirB></div>
* % }
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵcontainer(0);
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(0);
{
for (let i = 0; i < 3; i++) {
if (ɵɵembeddedViewStart(0, 1, 0)) {
ɵɵelement(0, 'div', ['dirA', '', 'dirB', '']);
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
}, 1, 0, [DirA, DirB]);
new ComponentFixture(App);
expect(log).toEqual(
['DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)', 'DirB', 'DirA (dep: DirB)']);
});
describe('dependencies in parent views', () => {
class DirA {
injector: Injector;
constructor(public dirB: DirB, public vcr: ViewContainerRef) {
this.injector = vcr.injector;
}
static ngFactoryDef = () => new DirA(
ɵɵdirectiveInject(DirB), ɵɵdirectiveInject(ViewContainerRef as any))
static ngDirectiveDef =
ɵɵdefineDirective({type: DirA, selectors: [['', 'dirA', '']], exportAs: ['dirA']});
}
/**
* This test needs to be moved to acceptance/di_spec.ts
* when Ivy compiler supports inline views.
*/
it('should find dependencies of directives nested deeply in inline views', () => {
/**
* <div dirB>
* % if (!skipContent) {
* % if (!skipContent2) {
* <div dirA #dir="dirA"> {{ dir.dirB.value }} </div>
* % }
* % }
* </div>
*/
const App = createComponent('app', (rf: RenderFlags, ctx: any) => {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirB', '']);
{ ɵɵcontainer(1); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(1);
{
if (!ctx.skipContent) {
let rf1 = ɵɵembeddedViewStart(0, 1, 0);
{
if (rf1 & RenderFlags.Create) {
ɵɵcontainer(0);
}
if (rf1 & RenderFlags.Update) {
ɵɵcontainerRefreshStart(0);
{
if (!ctx.skipContent2) {
let rf2 = ɵɵembeddedViewStart(0, 3, 1);
{
if (rf2 & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirA', ''], ['dir', 'dirA']);
{ ɵɵtext(2); }
ɵɵelementEnd();
}
if (rf2 & RenderFlags.Update) {
const dir = ɵɵreference(1) as DirA;
ɵɵselect(2);
ɵɵtextInterpolate(dir.dirB.value);
}
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
}, 2, 0, [DirA, DirB]);
const fixture = new ComponentFixture(App);
expect(fixture.hostElement.textContent).toEqual(`DirB`);
});
});
describe('flags', () => {
class DirB {
// TODO(issue/24571): remove '!'.
value !: string;
static ngFactoryDef = () => new DirB();
static ngDirectiveDef =
ɵɵdefineDirective({type: DirB, selectors: [['', 'dirB', '']], inputs: {value: 'dirB'}});
}
describe('Optional', () => {
let dirA: DirA|null = null;
class DirA {
constructor(@Optional() public dirB: DirB|null) {}
static ngFactoryDef =
() => {
dirA = new DirA(ɵɵdirectiveInject(DirB, InjectFlags.Optional));
return dirA;
}
static ngDirectiveDef = ɵɵdefineDirective({type: DirA, selectors: [['', 'dirA', '']]});
}
beforeEach(() => dirA = null);
it('should not throw if dependency is @Optional (limp mode)', () => {
/** <div dirA></div> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '']);
}
}, 1, 0, [DirA, DirB]);
expect(() => { new ComponentFixture(App); }).not.toThrow();
expect(dirA !.dirB).toEqual(null);
});
});
it('should check only the current node with @Self even with false positive', () => {
let dirA: DirA;
class DirA {
constructor(@Self() public dirB: DirB) {}
static ngFactoryDef = () => dirA = new DirA(ɵɵdirectiveInject(DirB, InjectFlags.Self));
static ngDirectiveDef = ɵɵdefineDirective({type: DirA, selectors: [['', 'dirA', '']]});
}
const DirC = createDirective('dirC');
/**
* <div dirB>
* <div dirA dirC></div>
* </div>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dirB', '']);
ɵɵelement(1, 'div', ['dirA', '', 'dirC', '']);
ɵɵelementEnd();
}
}, 2, 0, [DirA, DirB, DirC]);
expect(() => {
(DirA as any)['__NG_ELEMENT_ID__'] = 1;
(DirC as any)['__NG_ELEMENT_ID__'] = 257;
new ComponentFixture(App);
}).toThrowError(/NodeInjector: NOT_FOUND \[DirB\]/);
});
describe('@Host', () => {
let dirA: DirA|null = null;
beforeEach(() => { dirA = null; });
class DirA {
constructor(@Host() public dirB: DirB) {}
static ngFactoryDef = () => dirA = new DirA(ɵɵdirectiveInject(DirB, InjectFlags.Host));
static ngDirectiveDef = ɵɵdefineDirective({type: DirA, selectors: [['', 'dirA', '']]});
}
/**
* This test needs to be moved to acceptance/di_spec.ts
* when Ivy compiler supports inline views.
*/
it('should not find providers on the host itself if in inline view', () => {
let comp !: any;
/**
* % if (showing) {
* <div dirA></div>
* % }
*/
const Comp = createComponent('comp', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵcontainer(0);
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(0);
{
if (ctx.showing) {
let rf1 = ɵɵembeddedViewStart(0, 1, 0);
if (rf1 & RenderFlags.Create) {
ɵɵelement(0, 'div', ['dirA', '']);
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
}, 1, 0, [DirA, DirB]);
/* <comp dirB></comp> */
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelement(0, 'comp', ['dirB', '']);
}
if (rf & RenderFlags.Update) {
comp = getDirectiveOnNode(0);
}
}, 1, 0, [Comp, DirB]);
const fixture = new ComponentFixture(App);
expect(() => {
comp.showing = true;
fixture.update();
}).toThrowError(/NodeInjector: NOT_FOUND \[DirB\]/);
});
});
});
});
describe('Special tokens', () => {
describe('ChangeDetectorRef', () => {
let dir: Directive;
let dirSameInstance: DirectiveSameInstance;
let comp: MyComp;
class MyComp {
constructor(public cdr: ChangeDetectorRef) {}
static ngFactoryDef = () => comp = new MyComp(ɵɵdirectiveInject(ChangeDetectorRef as any));
static ngComponentDef = ɵɵdefineComponent({
type: MyComp,
selectors: [['my-comp']],
consts: 1,
vars: 0,
template: function(rf: RenderFlags, ctx: MyComp) {
if (rf & RenderFlags.Create) {
ɵɵprojectionDef();
ɵɵprojection(0);
}
}
});
}
class Directive {
value: string;
constructor(public cdr: ChangeDetectorRef) { this.value = (cdr.constructor as any).name; }
static ngFactoryDef =
() => {
dir = new Directive(ɵɵdirectiveInject(ChangeDetectorRef as any));
return dir;
}
static ngDirectiveDef =
ɵɵdefineDirective({type: Directive, selectors: [['', 'dir', '']], exportAs: ['dir']});
}
class DirectiveSameInstance {
constructor(public cdr: ChangeDetectorRef) {}
static ngFactoryDef = () => dirSameInstance =
new DirectiveSameInstance(ɵɵdirectiveInject(ChangeDetectorRef as any))
static ngDirectiveDef = ɵɵdefineDirective(
{type: DirectiveSameInstance, selectors: [['', 'dirSame', '']]});
}
const directives = [MyComp, Directive, DirectiveSameInstance];
/**
* This test needs to be moved to acceptance/di_spec.ts
* when Ivy compiler supports inline views.
*/
it('should inject host component ChangeDetectorRef into directives in embedded views', () => {
class MyApp {
showing = true;
constructor(public cdr: ChangeDetectorRef) {}
static ngFactoryDef = () => new MyApp(ɵɵdirectiveInject(ChangeDetectorRef as any));
static ngComponentDef = ɵɵdefineComponent({
type: MyApp,
selectors: [['my-app']],
consts: 1,
vars: 0,
/**
* % if (showing) {
* <div dir dirSame #dir="dir"> {{ dir.value }} </div>
* % }
*/
template: function(rf: RenderFlags, ctx: MyApp) {
if (rf & RenderFlags.Create) {
ɵɵcontainer(0);
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(0);
{
if (ctx.showing) {
let rf1 = ɵɵembeddedViewStart(0, 3, 1);
if (rf1 & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['dir', '', 'dirSame', ''], ['dir', 'dir']);
{ ɵɵtext(2); }
ɵɵelementEnd();
}
if (rf1 & RenderFlags.Update) {
const tmp = ɵɵreference(1) as any;
ɵɵselect(2);
ɵɵtextInterpolate(tmp.value);
}
}
ɵɵembeddedViewEnd();
}
ɵɵcontainerRefreshEnd();
}
},
directives: directives
});
}
const app = renderComponent(MyApp);
expect(toHtml(app)).toEqual('<div dir="" dirsame="">ViewRef</div>');
expect((app !.cdr as ViewRef<MyApp>).context).toBe(app);
// Each ChangeDetectorRef instance should be unique
expect(dir !.cdr).not.toBe(app.cdr);
expect(dir !.cdr).not.toBe(dirSameInstance !.cdr);
});
});
});
describe('Renderer2', () => {
class MyComp {
constructor(public renderer: Renderer2) {}
static ngFactoryDef = () => new MyComp(ɵɵdirectiveInject(Renderer2 as any));
static ngComponentDef = ɵɵdefineComponent({
type: MyComp,
selectors: [['my-comp']],
consts: 1,
vars: 0,
template: function(rf: RenderFlags, ctx: MyComp) {
if (rf & RenderFlags.Create) {
ɵɵtext(0, 'Foo');
}
}
});
}
it('should inject the Renderer2 used by the application', () => {
const rendererFactory = getRendererFactory2(document);
const fixture = new ComponentFixture(MyComp, {rendererFactory: rendererFactory});
expect(isProceduralRenderer(fixture.component.renderer)).toBeTruthy();
});
it('should throw when injecting Renderer2 but the application is using Renderer3',
() => { expect(() => new ComponentFixture(MyComp)).toThrow(); });
});
describe('ɵɵinject', () => {
describe('bloom filter', () => {
let mockTView: any;
beforeEach(() => {
mockTView = {data: [0, 0, 0, 0, 0, 0, 0, 0, null], firstTemplatePass: true};
});
function bloomState() { return mockTView.data.slice(0, TNODE).reverse(); }
class Dir0 {
/** @internal */ static __NG_ELEMENT_ID__ = 0;
}
class Dir1 {
/** @internal */ static __NG_ELEMENT_ID__ = 1;
}
class Dir33 {
/** @internal */ static __NG_ELEMENT_ID__ = 33;
}
class Dir66 {
/** @internal */ static __NG_ELEMENT_ID__ = 66;
}
class Dir99 {
/** @internal */ static __NG_ELEMENT_ID__ = 99;
}
class Dir132 {
/** @internal */ static __NG_ELEMENT_ID__ = 132;
}
class Dir165 {
/** @internal */ static __NG_ELEMENT_ID__ = 165;
}
class Dir198 {
/** @internal */ static __NG_ELEMENT_ID__ = 198;
}
class Dir231 {
/** @internal */ static __NG_ELEMENT_ID__ = 231;
}
it('should add values', () => {
bloomAdd(0, mockTView, Dir0);
expect(bloomState()).toEqual([0, 0, 0, 0, 0, 0, 0, 1]);
bloomAdd(0, mockTView, Dir33);
expect(bloomState()).toEqual([0, 0, 0, 0, 0, 0, 2, 1]);
bloomAdd(0, mockTView, Dir66);
expect(bloomState()).toEqual([0, 0, 0, 0, 0, 4, 2, 1]);
bloomAdd(0, mockTView, Dir99);
expect(bloomState()).toEqual([0, 0, 0, 0, 8, 4, 2, 1]);
bloomAdd(0, mockTView, Dir132);
expect(bloomState()).toEqual([0, 0, 0, 16, 8, 4, 2, 1]);
bloomAdd(0, mockTView, Dir165);
expect(bloomState()).toEqual([0, 0, 32, 16, 8, 4, 2, 1]);
bloomAdd(0, mockTView, Dir198);
expect(bloomState()).toEqual([0, 64, 32, 16, 8, 4, 2, 1]);
bloomAdd(0, mockTView, Dir231);
expect(bloomState()).toEqual([128, 64, 32, 16, 8, 4, 2, 1]);
});
it('should query values', () => {
bloomAdd(0, mockTView, Dir0);
bloomAdd(0, mockTView, Dir33);
bloomAdd(0, mockTView, Dir66);
bloomAdd(0, mockTView, Dir99);
bloomAdd(0, mockTView, Dir132);
bloomAdd(0, mockTView, Dir165);
bloomAdd(0, mockTView, Dir198);
bloomAdd(0, mockTView, Dir231);
expect(bloomHasToken(bloomHash(Dir0) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir1) as number, 0, mockTView.data)).toEqual(false);
expect(bloomHasToken(bloomHash(Dir33) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir66) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir99) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir132) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir165) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir198) as number, 0, mockTView.data)).toEqual(true);
expect(bloomHasToken(bloomHash(Dir231) as number, 0, mockTView.data)).toEqual(true);
});
});
/**
* This test needs to be moved to acceptance/di_spec.ts when Ivy compiler supports inline views.
*/
it('should inject from parent view', () => {
const ParentDirective = createDirective('parentDir');
class ChildDirective {
value: string;
constructor(public parent: any) { this.value = (parent.constructor as any).name; }
static ngFactoryDef = () => new ChildDirective(ɵɵdirectiveInject(ParentDirective));
static ngDirectiveDef = ɵɵdefineDirective(
{type: ChildDirective, selectors: [['', 'childDir', '']], exportAs: ['childDir']});
}
class Child2Directive {
value: boolean;
constructor(parent: any, child: ChildDirective) { this.value = parent === child.parent; }
static ngFactoryDef = () => new Child2Directive(
ɵɵdirectiveInject(ParentDirective), ɵɵdirectiveInject(ChildDirective))
static ngDirectiveDef = ɵɵdefineDirective({
selectors: [['', 'child2Dir', '']],
type: Child2Directive,
exportAs: ['child2Dir']
});
}
/**
* <div parentDir>
* % if (...) {
* <span childDir child2Dir #child1="childDir" #child2="child2Dir">
* {{ child1.value }} - {{ child2.value }}
* </span>
* % }
* </div>
*/
const App = createComponent('app', function(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'div', ['parentDir', '']);
{ ɵɵcontainer(1); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(1);
{
let rf1 = ɵɵembeddedViewStart(0, 4, 2);
if (rf1 & RenderFlags.Create) {
ɵɵelementStart(
0, 'span', ['childDir', '', 'child2Dir', ''],
['child1', 'childDir', 'child2', 'child2Dir']);
{ ɵɵtext(3); }
ɵɵelementEnd();
}
if (rf & RenderFlags.Update) {
const tmp1 = ɵɵreference(1) as any;
const tmp2 = ɵɵreference(2) as any;
ɵɵselect(3);
ɵɵtextInterpolate2('', tmp1.value, '-', tmp2.value, '');
}
ɵɵembeddedViewEnd();
}
ɵɵcontainerRefreshEnd();
}
}, 2, 0, [ChildDirective, Child2Directive, ParentDirective]);
const fixture = new ComponentFixture(App);
expect(fixture.html)
.toEqual('<div parentdir=""><span child2dir="" childdir="">Directive-true</span></div>');
});
});
describe('getOrCreateNodeInjector', () => {
it('should handle initial undefined state', () => {
const contentView = createLView(
null, createTView(-1, null, 1, 0, null, null, null, null), null, LViewFlags.CheckAlways,
null, null, {} as any, {} as any);
const oldView = selectView(contentView, null);
try {
const parentTNode =
getOrCreateTNode(contentView[TVIEW], null, 0, TNodeType.Element, null, null);
// Simulate the situation where the previous parent is not initialized.
// This happens on first bootstrap because we don't init existing values
// so that we have smaller HelloWorld.
(parentTNode as{parent: any}).parent = undefined;
const injector = getOrCreateNodeInjectorForNode(parentTNode, contentView);
expect(injector).not.toEqual(-1);
} finally {
selectView(oldView, null);
}
});
});
});