angular-docs-cn/packages/compiler-cli/test/ngtsc/ngtsc_spec.ts

2124 lines
66 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 * as ts from 'typescript';
import {NgtscTestEnvironment} from './env';
const trim = (input: string): string => input.replace(/\s+/g, ' ').trim();
const varRegExp = (name: string): RegExp => new RegExp(`var \\w+ = \\[\"${name}\"\\];`);
const viewQueryRegExp = (descend: boolean, ref?: string): RegExp => {
const maybeRef = ref ? `, ${ref}` : ``;
return new RegExp(`i0\\.ɵviewQuery\\(\\w+, ${descend}${maybeRef}\\)`);
};
const contentQueryRegExp = (predicate: string, descend: boolean, ref?: string): RegExp => {
const maybeRef = ref ? `, ${ref}` : ``;
return new RegExp(`i0\\.ɵcontentQuery\\(dirIndex, ${predicate}, ${descend}${maybeRef}\\)`);
};
describe('ngtsc behavioral tests', () => {
let env !: NgtscTestEnvironment;
beforeEach(() => { env = NgtscTestEnvironment.setup(); });
it('should compile Injectables without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable()
export class Dep {}
@Injectable()
export class Service {
constructor(dep: Dep) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Dep.ngInjectableDef =');
expect(jsContents).toContain('Service.ngInjectableDef =');
expect(jsContents).not.toContain('__decorate');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Dep>;');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Service>;');
});
it('should compile Injectables with a generic service', () => {
env.tsconfig();
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable()
export class Store<T> {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Store.ngInjectableDef =');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Store<any>>;');
});
it('should compile Injectables with providedIn without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable()
export class Dep {}
@Injectable({ providedIn: 'root' })
export class Service {
constructor(dep: Dep) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Dep.ngInjectableDef =');
expect(jsContents).toContain('Service.ngInjectableDef =');
expect(jsContents)
.toContain('return new (t || Service)(i0.inject(Dep)); }, providedIn: \'root\' });');
expect(jsContents).not.toContain('__decorate');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Dep>;');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Service>;');
});
it('should compile Injectables with providedIn and factory without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable({ providedIn: 'root', useFactory: () => new Service() })
export class Service {
constructor() {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Service.ngInjectableDef =');
expect(jsContents).toContain('(r = new t());');
expect(jsContents).toContain('(r = (function () { return new Service(); })());');
expect(jsContents).toContain('factory: function Service_Factory(t) { var r = null; if (t) {');
expect(jsContents).toContain('return r; }, providedIn: \'root\' });');
expect(jsContents).not.toContain('__decorate');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Service>;');
});
it('should compile Injectables with providedIn and factory with deps without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable()
export class Dep {}
@Injectable({ providedIn: 'root', useFactory: (dep: Dep) => new Service(dep), deps: [Dep] })
export class Service {
constructor(dep: Dep) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Service.ngInjectableDef =');
expect(jsContents).toContain('factory: function Service_Factory(t) { var r = null; if (t) {');
expect(jsContents).toContain('(r = new t(i0.inject(Dep)));');
expect(jsContents)
.toContain('(r = (function (dep) { return new Service(dep); })(i0.inject(Dep)));');
expect(jsContents).toContain('return r; }, providedIn: \'root\' });');
expect(jsContents).not.toContain('__decorate');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain('static ngInjectableDef: i0.ɵInjectableDef<Service>;');
});
it('should compile Components without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'test-cmp',
template: 'this is a test',
})
export class TestCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('TestCmp.ngComponentDef = i0.ɵdefineComponent');
expect(jsContents).not.toContain('__decorate');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'static ngComponentDef: i0.ɵComponentDefWithMeta<TestCmp, "test-cmp", never, {}, {}, never>');
});
it('should compile Components without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'test-cmp',
templateUrl: './dir/test.html',
})
export class TestCmp {}
`);
env.write('dir/test.html', '<p>Hello World</p>');
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Hello World');
});
it('should add @nocollapse to static fields when closure annotations are requested', () => {
env.tsconfig({
'annotateForClosureCompiler': true,
});
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'test-cmp',
templateUrl: './dir/test.html',
})
export class TestCmp {}
`);
env.write('dir/test.html', '<p>Hello World</p>');
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('/** @nocollapse */ TestCmp.ngComponentDef');
});
it('should compile Components with a templateUrl in a different rootDir', () => {
env.tsconfig({}, ['./extraRootDir']);
env.write('extraRootDir/test.html', '<p>Hello World</p>');
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'test-cmp',
templateUrl: 'test.html',
})
export class TestCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Hello World');
});
it('should compile components with styleUrls', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'test-cmp',
styleUrls: ['./dir/style.css'],
template: '',
})
export class TestCmp {}
`);
env.write('dir/style.css', ':host { background-color: blue; }');
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('background-color: blue');
});
it('should compile NgModules without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'test-cmp',
template: 'this is a test',
})
export class TestCmp {}
@NgModule({
declarations: [TestCmp],
bootstrap: [TestCmp],
})
export class TestModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain(
'i0.ɵdefineNgModule({ type: TestModule, bootstrap: [TestCmp], ' +
'declarations: [TestCmp] })');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'static ngComponentDef: i0.ɵComponentDefWithMeta<TestCmp, "test-cmp", never, {}, {}, never>');
expect(dtsContents)
.toContain(
'static ngModuleDef: i0.ɵNgModuleDefWithMeta<TestModule, [typeof TestCmp], never, never>');
expect(dtsContents).not.toContain('__decorate');
});
it('should compile NgModules with services without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
export class Token {}
@NgModule({})
export class OtherModule {}
@Component({
selector: 'test-cmp',
template: 'this is a test',
})
export class TestCmp {}
@NgModule({
declarations: [TestCmp],
providers: [{provide: Token, useValue: 'test'}],
imports: [OtherModule],
})
export class TestModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('i0.ɵdefineNgModule({ type: TestModule,');
expect(jsContents)
.toContain(
`TestModule.ngInjectorDef = i0.defineInjector({ factory: ` +
`function TestModule_Factory(t) { return new (t || TestModule)(); }, providers: [{ provide: ` +
`Token, useValue: 'test' }], imports: [[OtherModule]] });`);
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'static ngModuleDef: i0.ɵNgModuleDefWithMeta<TestModule, [typeof TestCmp], [typeof OtherModule], never>');
expect(dtsContents).toContain('static ngInjectorDef: i0.ɵInjectorDef');
});
it('should compile NgModules with factory providers without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
export class Token {}
@NgModule({})
export class OtherModule {}
@Component({
selector: 'test-cmp',
template: 'this is a test',
})
export class TestCmp {}
@NgModule({
declarations: [TestCmp],
providers: [{provide: Token, useFactory: () => new Token()}],
imports: [OtherModule],
})
export class TestModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('i0.ɵdefineNgModule({ type: TestModule,');
expect(jsContents)
.toContain(
`TestModule.ngInjectorDef = i0.defineInjector({ factory: ` +
`function TestModule_Factory(t) { return new (t || TestModule)(); }, providers: [{ provide: ` +
`Token, useFactory: function () { return new Token(); } }], imports: [[OtherModule]] });`);
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'static ngModuleDef: i0.ɵNgModuleDefWithMeta<TestModule, [typeof TestCmp], [typeof OtherModule], never>');
expect(dtsContents).toContain('static ngInjectorDef: i0.ɵInjectorDef');
});
it('should compile NgModules with factory providers and deps without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
export class Dep {}
export class Token {
constructor(dep: Dep) {}
}
@NgModule({})
export class OtherModule {}
@Component({
selector: 'test-cmp',
template: 'this is a test',
})
export class TestCmp {}
@NgModule({
declarations: [TestCmp],
providers: [{provide: Token, useFactory: (dep: Dep) => new Token(dep), deps: [Dep]}],
imports: [OtherModule],
})
export class TestModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('i0.ɵdefineNgModule({ type: TestModule,');
expect(jsContents)
.toContain(
`TestModule.ngInjectorDef = i0.defineInjector({ factory: ` +
`function TestModule_Factory(t) { return new (t || TestModule)(); }, providers: [{ provide: ` +
`Token, useFactory: function (dep) { return new Token(dep); }, deps: [Dep] }], imports: [[OtherModule]] });`);
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'static ngModuleDef: i0.ɵNgModuleDefWithMeta<TestModule, [typeof TestCmp], [typeof OtherModule], never>');
expect(dtsContents).toContain('static ngInjectorDef: i0.ɵInjectorDef');
});
it('should compile NgModules with references to local components', () => {
env.tsconfig();
env.write('test.ts', `
import {NgModule} from '@angular/core';
import {Foo} from './foo';
@NgModule({
declarations: [Foo],
})
export class FooModule {}
`);
env.write('foo.ts', `
import {Component} from '@angular/core';
@Component({selector: 'foo', template: ''})
export class Foo {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const dtsContents = env.getContents('test.d.ts');
expect(jsContents).toContain('import { Foo } from \'./foo\';');
expect(jsContents).not.toMatch(/as i[0-9] from ".\/foo"/);
expect(dtsContents).toContain('as i1 from "./foo";');
});
it('should compile NgModules with references to absolute components', () => {
env.tsconfig();
env.write('test.ts', `
import {NgModule} from '@angular/core';
import {Foo} from 'foo';
@NgModule({
declarations: [Foo],
})
export class FooModule {}
`);
env.write('node_modules/foo/index.d.ts', `
import * as i0 from '@angular/core';
export class Foo {
static ngComponentDef: i0.ɵComponentDef<Foo, 'foo'>;
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const dtsContents = env.getContents('test.d.ts');
expect(jsContents).toContain('import { Foo } from \'foo\';');
expect(jsContents).not.toMatch(/as i[0-9] from "foo"/);
expect(dtsContents).toContain('as i1 from "foo";');
});
it('should compile Pipes without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Pipe} from '@angular/core';
@Pipe({
name: 'test-pipe',
pure: false,
})
export class TestPipe {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const dtsContents = env.getContents('test.d.ts');
expect(jsContents)
.toContain(
'TestPipe.ngPipeDef = i0.ɵdefinePipe({ name: "test-pipe", type: TestPipe, ' +
'factory: function TestPipe_Factory(t) { return new (t || TestPipe)(); }, pure: false })');
expect(dtsContents).toContain('static ngPipeDef: i0.ɵPipeDefWithMeta<TestPipe, "test-pipe">;');
});
it('should compile pure Pipes without errors', () => {
env.tsconfig();
env.write('test.ts', `
import {Pipe} from '@angular/core';
@Pipe({
name: 'test-pipe',
})
export class TestPipe {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const dtsContents = env.getContents('test.d.ts');
expect(jsContents)
.toContain(
'TestPipe.ngPipeDef = i0.ɵdefinePipe({ name: "test-pipe", type: TestPipe, ' +
'factory: function TestPipe_Factory(t) { return new (t || TestPipe)(); }, pure: true })');
expect(dtsContents).toContain('static ngPipeDef: i0.ɵPipeDefWithMeta<TestPipe, "test-pipe">;');
});
it('should compile Pipes with dependencies', () => {
env.tsconfig();
env.write('test.ts', `
import {Pipe} from '@angular/core';
export class Dep {}
@Pipe({
name: 'test-pipe',
pure: false,
})
export class TestPipe {
constructor(dep: Dep) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('return new (t || TestPipe)(i0.ɵdirectiveInject(Dep));');
});
it('should include @Pipes in @NgModule scopes', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule, Pipe} from '@angular/core';
@Pipe({name: 'test'})
export class TestPipe {}
@Component({selector: 'test-cmp', template: '{{value | test}}'})
export class TestCmp {}
@NgModule({declarations: [TestPipe, TestCmp]})
export class TestModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('pipes: [TestPipe]');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents)
.toContain(
'i0.ɵNgModuleDefWithMeta<TestModule, [typeof TestPipe, typeof TestCmp], never, never>');
});
describe('unwrapping ModuleWithProviders functions', () => {
it('should extract the generic type and include it in the module\'s declaration', () => {
env.tsconfig();
env.write(`test.ts`, `
import {NgModule} from '@angular/core';
import {RouterModule} from 'router';
@NgModule({imports: [RouterModule.forRoot()]})
export class TestModule {}
`);
env.write('node_modules/router/index.d.ts', `
import {ModuleWithProviders} from '@angular/core';
declare class RouterModule {
static forRoot(): ModuleWithProviders<RouterModule>;
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('imports: [[RouterModule.forRoot()]]');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain(`import * as i1 from "router";`);
expect(dtsContents)
.toContain('i0.ɵNgModuleDefWithMeta<TestModule, never, [typeof i1.RouterModule], never>');
});
it('should extract the generic type if it is provided as qualified type name', () => {
env.tsconfig();
env.write(`test.ts`, `
import {NgModule} from '@angular/core';
import {RouterModule} from 'router';
@NgModule({imports: [RouterModule.forRoot()]})
export class TestModule {}
`);
env.write('node_modules/router/index.d.ts', `
import {ModuleWithProviders} from '@angular/core';
import * as internal from './internal';
export {InternalRouterModule} from './internal';
declare export class RouterModule {
static forRoot(): ModuleWithProviders<internal.InternalRouterModule>;
}
`);
env.write('node_modules/router/internal.d.ts', `
export declare class InternalRouterModule {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('imports: [[RouterModule.forRoot()]]');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain(`import * as i1 from "router";`);
expect(dtsContents)
.toContain(
'i0.ɵNgModuleDefWithMeta<TestModule, never, [typeof i1.InternalRouterModule], never>');
});
});
it('should unwrap a ModuleWithProviders-like function if a matching literal type is provided for it',
() => {
env.tsconfig();
env.write(`test.ts`, `
import {NgModule} from '@angular/core';
import {RouterModule} from 'router';
@NgModule({imports: [RouterModule.forRoot()]})
export class TestModule {}
`);
env.write('node_modules/router/index.d.ts', `
import {ModuleWithProviders} from '@angular/core';
export interface MyType extends ModuleWithProviders {}
declare class RouterModule {
static forRoot(): (MyType)&{ngModule:RouterModule};
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('imports: [[RouterModule.forRoot()]]');
const dtsContents = env.getContents('test.d.ts');
expect(dtsContents).toContain(`import * as i1 from "router";`);
expect(dtsContents)
.toContain(
'i0.ɵNgModuleDefWithMeta<TestModule, never, [typeof i1.RouterModule], never>');
});
it('should inject special types according to the metadata', () => {
env.tsconfig();
env.write(`test.ts`, `
import {
Attribute,
ChangeDetectorRef,
Component,
ElementRef,
Injector,
Renderer2,
TemplateRef,
ViewContainerRef,
} from '@angular/core';
@Component({
selector: 'test',
template: 'Test',
})
class FooCmp {
constructor(
@Attribute("test") attr: string,
cdr: ChangeDetectorRef,
er: ElementRef,
i: Injector,
r2: Renderer2,
tr: TemplateRef,
vcr: ViewContainerRef,
) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain(
`factory: function FooCmp_Factory(t) { return new (t || FooCmp)(i0.ɵinjectAttribute("test"), i0.ɵdirectiveInject(ChangeDetectorRef), i0.ɵdirectiveInject(ElementRef), i0.ɵdirectiveInject(Injector), i0.ɵdirectiveInject(Renderer2), i0.ɵdirectiveInject(TemplateRef), i0.ɵdirectiveInject(ViewContainerRef)); }`);
});
it('should generate queries for components', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, ContentChild, ContentChildren, TemplateRef, ViewChild} from '@angular/core';
@Component({
selector: 'test',
template: '<div #foo></div>',
queries: {
'mview': new ViewChild('test1'),
'mcontent': new ContentChild('test2'),
}
})
class FooCmp {
@ContentChild('bar', {read: TemplateRef}) child: any;
@ContentChildren(TemplateRef) children: any;
get aview(): any { return null; }
@ViewChild('accessor') set aview(value: any) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toMatch(varRegExp('bar'));
expect(jsContents).toMatch(varRegExp('test1'));
expect(jsContents).toMatch(varRegExp('test2'));
expect(jsContents).toMatch(varRegExp('accessor'));
// match `i0.ɵcontentQuery(dirIndex, _c1, true, TemplateRef)`
expect(jsContents).toMatch(contentQueryRegExp('\\w+', true, 'TemplateRef'));
// match `i0.ɵviewQuery(_c2, true)`
expect(jsContents).toMatch(viewQueryRegExp(true));
});
it('should handle queries that use forwardRef', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, ContentChild, TemplateRef, ViewContainerRef, forwardRef} from '@angular/core';
@Component({
selector: 'test',
template: '<div #foo></div>',
})
class FooCmp {
@ContentChild(forwardRef(() => TemplateRef)) child: any;
@ContentChild(forwardRef(function() { return ViewContainerRef; })) child2: any;
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
// match `i0.ɵcontentQuery(dirIndex, TemplateRef, true)`
expect(jsContents).toMatch(contentQueryRegExp('TemplateRef', true));
// match `i0.ɵcontentQuery(dirIndex, ViewContainerRef, true)`
expect(jsContents).toMatch(contentQueryRegExp('ViewContainerRef', true));
});
it('should generate host listeners for components', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, HostListener} from '@angular/core';
@Component({
selector: 'test',
template: 'Test'
})
class FooCmp {
@HostListener('click')
onClick(event: any): void {}
@HostListener('document:click', ['$event.target'])
onDocumentClick(eventTarget: HTMLElement): void {}
@HostListener('window:scroll')
onWindowScroll(event: any): void {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function FooCmp_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵlistener("click", function FooCmp_click_HostBindingHandler($event) { return ctx.onClick(); });
i0.ɵlistener("click", function FooCmp_click_HostBindingHandler($event) { return ctx.onDocumentClick($event.target); }, false, i0.ɵresolveDocument);
i0.ɵlistener("scroll", function FooCmp_scroll_HostBindingHandler($event) { return ctx.onWindowScroll(); }, false, i0.ɵresolveWindow);
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
it('should throw in case unknown global target is provided', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, HostListener} from '@angular/core';
@Component({
selector: 'test',
template: 'Test'
})
class FooCmp {
@HostListener('UnknownTarget:click')
onClick(event: any): void {}
}
`);
const errors = env.driveDiagnostics();
expect(trim(errors[0].messageText as string))
.toContain(
`Unexpected global target 'UnknownTarget' defined for 'click' event. Supported list of global targets: window,document,body.`);
});
it('should throw in case pipes are used in host listeners', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: '...',
host: {
'(click)': 'doSmth() | myPipe'
}
})
class FooCmp {}
`);
const errors = env.driveDiagnostics();
expect(trim(errors[0].messageText as string))
.toContain('Cannot have a pipe in an action expression');
});
it('should throw in case pipes are used in host listeners', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: '...',
host: {
'[id]': 'id | myPipe'
}
})
class FooCmp {}
`);
const errors = env.driveDiagnostics();
expect(trim(errors[0].messageText as string))
.toContain('Host binding expression cannot contain pipes');
});
it('should generate host bindings for directives', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, HostBinding, HostListener, TemplateRef} from '@angular/core';
@Component({
selector: 'test',
template: 'Test',
host: {
'[attr.hello]': 'foo',
'(click)': 'onClick($event)',
'(body:click)': 'onBodyClick($event)',
'[prop]': 'bar',
},
})
class FooCmp {
onClick(event: any): void {}
@HostBinding('class.someclass')
get someClass(): boolean { return false; }
@HostListener('change', ['arg1', 'arg2', 'arg3'])
onChange(event: any, arg: any): void {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function FooCmp_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵallocHostVars(2);
i0.ɵlistener("click", function FooCmp_click_HostBindingHandler($event) { return ctx.onClick($event); });
i0.ɵlistener("click", function FooCmp_click_HostBindingHandler($event) { return ctx.onBodyClick($event); }, false, i0.ɵresolveBody);
i0.ɵlistener("change", function FooCmp_change_HostBindingHandler($event) { return ctx.onChange(ctx.arg1, ctx.arg2, ctx.arg3); });
i0.ɵelementStyling(_c0, null, null, ctx);
}
if (rf & 2) {
i0.ɵelementAttribute(elIndex, "hello", i0.ɵbind(ctx.foo));
i0.ɵelementProperty(elIndex, "prop", i0.ɵbind(ctx.bar), null, true);
i0.ɵelementClassProp(elIndex, 0, ctx.someClass, ctx);
i0.ɵelementStylingApply(elIndex, ctx);
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
it('should generate host listeners for directives within hostBindings section', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Directive, HostListener} from '@angular/core';
@Directive({
selector: '[test]',
})
class Dir {
@HostListener('change', ['arg'])
onChange(event: any, arg: any): void {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function Dir_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵlistener("change", function Dir_change_HostBindingHandler($event) { return ctx.onChange(ctx.arg); });
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
it('should use proper default value for preserveWhitespaces config param', () => {
env.tsconfig(); // default is `false`
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
preserveWhitespaces: false,
template: \`
<div>
Template with whitespaces
</div>
\`
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('text(1, " Template with whitespaces ");');
});
it('should take preserveWhitespaces config option into account', () => {
env.tsconfig({preserveWhitespaces: true});
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: \`
<div>
Template with whitespaces
</div>
\`
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain('text(2, "\\n Template with whitespaces\\n ");');
});
it('@Component\'s preserveWhitespaces should override the one defined in config', () => {
env.tsconfig({preserveWhitespaces: true});
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
preserveWhitespaces: false,
template: \`
<div>
Template with whitespaces
</div>
\`
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('text(1, " Template with whitespaces ");');
});
it('should use proper default value for i18nUseExternalIds config param', () => {
env.tsconfig(); // default is `true`
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: '<div i18n>Some text</div>'
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('i18n(1, MSG_EXTERNAL_8321000940098097247$$TEST_TS_0);');
});
it('should take i18nUseExternalIds config option into account', () => {
env.tsconfig({i18nUseExternalIds: false});
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: '<div i18n>Some text</div>'
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('i18n(1, MSG_TEST_TS_0);');
});
it('@Component\'s `interpolation` should override default interpolation config', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'cmp-with-custom-interpolation-a',
template: \`<div>{%text%}</div>\`,
interpolation: ['{%', '%}']
})
class ComponentWithCustomInterpolationA {
text = 'Custom Interpolation A';
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('interpolation1("", ctx.text, "")');
});
it('should handle `encapsulation` field', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, ViewEncapsulation} from '@angular/core';
@Component({
selector: 'comp-a',
template: '...',
encapsulation: ViewEncapsulation.None
})
class CompA {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('encapsulation: 2');
});
it('should throw if `encapsulation` contains invalid value', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'comp-a',
template: '...',
encapsulation: 'invalid-value'
})
class CompA {}
`);
const errors = env.driveDiagnostics();
expect(errors[0].messageText)
.toContain('encapsulation must be a member of ViewEncapsulation enum from @angular/core');
});
it('should handle `changeDetection` field', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, ChangeDetectionStrategy} from '@angular/core';
@Component({
selector: 'comp-a',
template: '...',
changeDetection: ChangeDetectionStrategy.OnPush
})
class CompA {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('changeDetection: 0');
});
it('should throw if `changeDetection` contains invalid value', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'comp-a',
template: '...',
changeDetection: 'invalid-value'
})
class CompA {}
`);
const errors = env.driveDiagnostics();
expect(errors[0].messageText)
.toContain(
'changeDetection must be a member of ChangeDetectionStrategy enum from @angular/core');
});
it('should ignore empty bindings', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'test',
template: '<div [someProp]></div>'
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).not.toContain('i0.ɵelementProperty');
});
it('should correctly recognize local symbols', () => {
env.tsconfig();
env.write('module.ts', `
import {NgModule} from '@angular/core';
import {Dir, Comp} from './test';
@NgModule({
declarations: [Dir, Comp],
exports: [Dir, Comp],
})
class Module {}
`);
env.write(`test.ts`, `
import {Component, Directive} from '@angular/core';
@Directive({
selector: '[dir]',
})
export class Dir {}
@Component({
selector: 'test',
template: '<div dir>Test</div>',
})
export class Comp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).not.toMatch(/import \* as i[0-9] from ['"].\/test['"]/);
});
it('should generate exportAs declarations', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, Directive} from '@angular/core';
@Directive({
selector: '[test]',
exportAs: 'foo',
})
class Dir {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain(`exportAs: ["foo"]`);
});
it('should generate multiple exportAs declarations', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, Directive} from '@angular/core';
@Directive({
selector: '[test]',
exportAs: 'foo, bar',
})
class Dir {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain(`exportAs: ["foo", "bar"]`);
});
it('should generate correct factory stubs for a test module', () => {
env.tsconfig({'allowEmptyCodegenFiles': true});
env.write('test.ts', `
import {Injectable, NgModule} from '@angular/core';
@Injectable()
export class NotAModule {}
@NgModule({})
export class TestModule {}
`);
env.write('empty.ts', `
import {Injectable} from '@angular/core';
@Injectable()
export class NotAModule {}
`);
env.driveMain();
const factoryContents = env.getContents('test.ngfactory.js');
expect(factoryContents).toContain(`import * as i0 from '@angular/core';`);
expect(factoryContents).toContain(`import { NotAModule, TestModule } from './test';`);
expect(factoryContents)
.toContain(`export var TestModuleNgFactory = new i0.ɵNgModuleFactory(TestModule);`);
expect(factoryContents).not.toContain(`NotAModuleNgFactory`);
expect(factoryContents).not.toContain('ɵNonEmptyModule');
const emptyFactory = env.getContents('empty.ngfactory.js');
expect(emptyFactory).toContain(`import * as i0 from '@angular/core';`);
expect(emptyFactory).toContain(`export var ɵNonEmptyModule = true;`);
});
it('should generate correct imports in factory stubs when compiling @angular/core', () => {
env.tsconfig({'allowEmptyCodegenFiles': true});
env.write('test.ts', `
import {NgModule} from '@angular/core';
@NgModule({})
export class TestModule {}
`);
// Trick the compiler into thinking it's compiling @angular/core.
env.write('r3_symbols.ts', 'export const ITS_JUST_ANGULAR = true;');
env.driveMain();
const factoryContents = env.getContents('test.ngfactory.js');
expect(normalize(factoryContents)).toBe(normalize(`
import * as i0 from "./r3_symbols";
import { TestModule } from './test';
export var TestModuleNgFactory = new i0.NgModuleFactory(TestModule);
`));
});
it('should generate a summary stub for decorated classes in the input file only', () => {
env.tsconfig({'allowEmptyCodegenFiles': true});
env.write('test.ts', `
import {Injectable, NgModule} from '@angular/core';
export class NotAModule {}
@NgModule({})
export class TestModule {}
`);
env.driveMain();
const summaryContents = env.getContents('test.ngsummary.js');
expect(summaryContents).toEqual(`export var TestModuleNgSummary = null;\n`);
});
it('it should generate empty export when there are no other summary symbols, to ensure the output is a valid ES module',
() => {
env.tsconfig({'allowEmptyCodegenFiles': true});
env.write('empty.ts', `
export class NotAModule {}
`);
env.driveMain();
const emptySummary = env.getContents('empty.ngsummary.js');
// The empty export ensures this js file is still an ES module.
expect(emptySummary).toEqual(`export var ɵempty = null;\n`);
});
it('should compile a banana-in-a-box inside of a template', () => {
env.tsconfig();
env.write('test.ts', `
import {Component} from '@angular/core';
@Component({
template: '<div *tmpl [(bananaInABox)]="prop"></div>',
selector: 'test'
})
class TestCmp {}
`);
env.driveMain();
});
it('generates inherited factory definitions', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Injectable} from '@angular/core';
class Dep {}
@Injectable()
class Base {
constructor(dep: Dep) {}
}
@Injectable()
class Child extends Base {}
@Injectable()
class GrandChild extends Child {
constructor() {
super(null!);
}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain('function Base_Factory(t) { return new (t || Base)(i0.inject(Dep)); }');
expect(jsContents).toContain('var ɵChild_BaseFactory = i0.ɵgetInheritedFactory(Child)');
expect(jsContents)
.toContain('function Child_Factory(t) { return ɵChild_BaseFactory((t || Child)); }');
expect(jsContents)
.toContain('function GrandChild_Factory(t) { return new (t || GrandChild)(); }');
});
it('generates base factories for directives', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Directive} from '@angular/core';
class Base {}
@Directive({
selector: '[test]',
})
class Dir extends Base {
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('var ɵDir_BaseFactory = i0.ɵgetInheritedFactory(Dir)');
});
it('should wrap "directives" in component metadata in a closure when forward references are present',
() => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'cmp-a',
template: '<cmp-b></cmp-b>',
})
class CmpA {}
@Component({
selector: 'cmp-b',
template: 'This is B',
})
class CmpB {}
@NgModule({
declarations: [CmpA, CmpB],
})
class Module {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('directives: function () { return [CmpB]; }');
});
it('should emit setClassMetadata calls for all types', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, Directive, Injectable, NgModule, Pipe} from '@angular/core';
@Component({selector: 'cmp', template: 'I am a component!'}) class TestComponent {}
@Directive({selector: 'dir'}) class TestDirective {}
@Injectable() class TestInjectable {}
@NgModule({declarations: [TestComponent, TestDirective]}) class TestNgModule {}
@Pipe({name: 'pipe'}) class TestPipe {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('ɵsetClassMetadata(TestComponent, ');
expect(jsContents).toContain('ɵsetClassMetadata(TestDirective, ');
expect(jsContents).toContain('ɵsetClassMetadata(TestInjectable, ');
expect(jsContents).toContain('ɵsetClassMetadata(TestNgModule, ');
expect(jsContents).toContain('ɵsetClassMetadata(TestPipe, ');
});
it('should compile a template using multiple directives with the same selector', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, Directive, NgModule} from '@angular/core';
@Directive({selector: '[test]'})
class DirA {}
@Directive({selector: '[test]'})
class DirB {}
@Component({
template: '<div test></div>',
})
class Cmp {}
@NgModule({
declarations: [Cmp, DirA, DirB],
})
class Module {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toMatch(/directives: \[DirA,\s+DirB\]/);
});
describe('cycle detection', () => {
it('should detect a simple cycle and use remote component scoping', () => {
env.tsconfig();
env.write('test.ts', `
import {Component, NgModule} from '@angular/core';
import {NormalComponent} from './cyclic';
@Component({
selector: 'cyclic-component',
template: 'Importing this causes a cycle',
})
export class CyclicComponent {}
@NgModule({
declarations: [NormalComponent, CyclicComponent],
})
export class Module {}
`);
env.write('cyclic.ts', `
import {Component} from '@angular/core';
@Component({
selector: 'normal-component',
template: '<cyclic-component></cyclic-component>',
})
export class NormalComponent {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain(
'i0.ɵsetComponentScope(NormalComponent, [i1.NormalComponent, CyclicComponent], [])');
expect(jsContents).not.toContain('/*__PURE__*/ i0.ɵsetComponentScope');
});
});
describe('duplicate local refs', () => {
const getComponentScript = (template: string): string => `
import {Component, Directive, NgModule} from '@angular/core';
@Component({selector: 'my-cmp', template: \`${template}\`})
class Cmp {}
@NgModule({declarations: [Cmp]})
class Module {}
`;
// Components with templates listed below should
// throw the "ref is already defined" error
const invalidCases = [
`
<div #ref></div>
<div #ref></div>
`,
`
<div #ref>
<div #ref></div>
</div>
`,
`
<div>
<div #ref></div>
</div>
<div>
<div #ref></div>
</div>
`,
`
<ng-container>
<div #ref></div>
</ng-container>
<div #ref></div>
`
];
// Components with templates listed below should not throw
// the error, since refs are located in different scopes
const validCases = [
`
<ng-template>
<div #ref></div>
</ng-template>
<div #ref></div>
`,
`
<div *ngIf="visible" #ref></div>
<div #ref></div>
`,
`
<div *ngFor="let item of items" #ref></div>
<div #ref></div>
`
];
invalidCases.forEach(template => {
it('should throw in case of duplicate refs', () => {
env.tsconfig();
env.write('test.ts', getComponentScript(template));
const errors = env.driveDiagnostics();
expect(errors[0].messageText)
.toContain('Internal Error: The name ref is already defined in scope');
});
});
validCases.forEach(template => {
it('should not throw in case refs are in different scopes', () => {
env.tsconfig();
env.write('test.ts', getComponentScript(template));
const errors = env.driveDiagnostics();
expect(errors.length).toBe(0);
});
});
});
it('should compile programs with typeRoots', () => {
// Write out a custom tsconfig.json that includes 'typeRoots' and 'files'. 'files' is necessary
// because otherwise TS picks up the testTypeRoot/test/index.d.ts file into the program
// automatically. Shims are also turned on (via allowEmptyCodegenFiles) because the shim
// ts.CompilerHost wrapper can break typeRoot functionality (which this test is meant to
// detect).
env.write('tsconfig.json', `{
"extends": "./tsconfig-base.json",
"angularCompilerOptions": {
"allowEmptyCodegenFiles": true
},
"compilerOptions": {
"typeRoots": ["./testTypeRoot"],
},
"files": ["./test.ts"]
}`);
env.write('test.ts', `
import {Test} from 'ambient';
console.log(Test);
`);
env.write('testTypeRoot/.exists', '');
env.write('testTypeRoot/test/index.d.ts', `
declare module 'ambient' {
export const Test = 'This is a test';
}
`);
env.driveMain();
// Success is enough to indicate that this passes.
});
describe('when processing external directives', () => {
it('should not emit multiple references to the same directive', () => {
env.tsconfig();
env.write('node_modules/external/index.d.ts', `
import {ɵDirectiveDefWithMeta, ɵNgModuleDefWithMeta} from '@angular/core';
export declare class ExternalDir {
static ngDirectiveDef: ɵDirectiveDefWithMeta<ExternalDir, '[test]', never, never, never, never>;
}
export declare class ExternalModule {
static ngModuleDef: ɵNgModuleDefWithMeta<ExternalModule, [typeof ExternalDir], never, [typeof ExternalDir]>;
}
`);
env.write('test.ts', `
import {Component, Directive, NgModule} from '@angular/core';
import {ExternalModule} from 'external';
@Component({
template: '<div test></div>',
})
class Cmp {}
@NgModule({
declarations: [Cmp],
// Multiple imports of the same module used to result in duplicate directive references
// in the output.
imports: [ExternalModule, ExternalModule],
})
class Module {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toMatch(/directives: \[i1\.ExternalDir\]/);
});
it('should import directives by their external name', () => {
env.tsconfig();
env.write('node_modules/external/index.d.ts', `
import {ɵDirectiveDefWithMeta, ɵNgModuleDefWithMeta} from '@angular/core';
import {InternalDir} from './internal';
export {InternalDir as ExternalDir} from './internal';
export declare class ExternalModule {
static ngModuleDef: ɵNgModuleDefWithMeta<ExternalModule, [typeof InternalDir], never, [typeof InternalDir]>;
}
`);
env.write('node_modules/external/internal.d.ts', `
export declare class InternalDir {
static ngDirectiveDef: ɵDirectiveDefWithMeta<InternalDir, '[test]', never, never, never, never>;
}
`);
env.write('test.ts', `
import {Component, Directive, NgModule} from '@angular/core';
import {ExternalModule} from 'external';
@Component({
template: '<div test></div>',
})
class Cmp {}
@NgModule({
declarations: [Cmp],
imports: [ExternalModule],
})
class Module {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toMatch(/directives: \[i1\.ExternalDir\]/);
});
});
describe('flat module indices', () => {
it('should generate a basic flat module index', () => {
env.tsconfig({
'flatModuleOutFile': 'flat.js',
});
env.write('test.ts', 'export const TEST = "this is a test";');
env.driveMain();
const jsContents = env.getContents('flat.js');
expect(jsContents).toContain('export * from \'./test\';');
});
it('should generate a flat module with an id', () => {
env.tsconfig({
'flatModuleOutFile': 'flat.js',
'flatModuleId': '@mymodule',
});
env.write('test.ts', 'export const TEST = "this is a test";');
env.driveMain();
const dtsContents = env.getContents('flat.d.ts');
expect(dtsContents).toContain('/// <amd-module name="@mymodule" />');
});
it('should generate a proper flat module index file when nested', () => {
env.tsconfig({
'flatModuleOutFile': './public-api/index.js',
});
env.write('test.ts', `export const SOME_EXPORT = 'some-export'`);
env.driveMain();
expect(env.getContents('./public-api/index.js')).toContain(`export * from '../test';`);
});
it('should report an error when a flat module index is requested but no entrypoint can be determined',
() => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', 'export class Foo {}');
env.write('test2.ts', 'export class Bar {}');
const errors = env.driveDiagnostics();
expect(errors.length).toBe(1);
expect(errors[0].messageText)
.toBe(
'Angular compiler option "flatModuleOutFile" requires one and only one .ts file in the "files" field.');
});
it('should report an error when a visible directive is not exported', () => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', `
import {Directive, NgModule} from '@angular/core';
// The directive is not exported.
@Directive({selector: 'test'})
class Dir {}
// The module is, which makes the directive visible.
@NgModule({declarations: [Dir], exports: [Dir]})
export class Module {}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(1);
expect(errors[0].messageText)
.toBe(
'Unsupported private class Dir. This class is visible ' +
'to consumers via Module -> Dir, but is not exported from the top-level library ' +
'entrypoint.');
// Verify that the error is for the correct class.
const id = expectTokenAtPosition(errors[0].file !, errors[0].start !, ts.isIdentifier);
expect(id.text).toBe('Dir');
expect(ts.isClassDeclaration(id.parent)).toBe(true);
});
it('should report an error when a deeply visible directive is not exported', () => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', `
import {Directive, NgModule} from '@angular/core';
// The directive is not exported.
@Directive({selector: 'test'})
class Dir {}
// Neither is the module which declares it - meaning the directive is not visible here.
@NgModule({declarations: [Dir], exports: [Dir]})
class DirModule {}
// The module is, which makes the directive visible.
@NgModule({exports: [DirModule]})
export class Module {}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(2);
expect(errors[0].messageText)
.toBe(
'Unsupported private class DirModule. This class is ' +
'visible to consumers via Module -> DirModule, but is not exported from the top-level ' +
'library entrypoint.');
expect(errors[1].messageText)
.toBe(
'Unsupported private class Dir. This class is visible ' +
'to consumers via Module -> DirModule -> Dir, but is not exported from the top-level ' +
'library entrypoint.');
});
it('should report an error when a deeply visible module is not exported', () => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', `
import {Directive, NgModule} from '@angular/core';
// The directive is exported.
@Directive({selector: 'test'})
export class Dir {}
// The module which declares it is not.
@NgModule({declarations: [Dir], exports: [Dir]})
class DirModule {}
// The module is, which makes the module and directive visible.
@NgModule({exports: [DirModule]})
export class Module {}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(1);
expect(errors[0].messageText)
.toBe(
'Unsupported private class DirModule. This class is ' +
'visible to consumers via Module -> DirModule, but is not exported from the top-level ' +
'library entrypoint.');
});
it('should not report an error when a non-exported module is imported by a visible one', () => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', `
import {Directive, NgModule} from '@angular/core';
// The directive is not exported.
@Directive({selector: 'test'})
class Dir {}
// Neither is the module which declares it.
@NgModule({declarations: [Dir], exports: [Dir]})
class DirModule {}
// This module is, but it doesn't re-export the module, so it doesn't make the module and
// directive visible.
@NgModule({imports: [DirModule]})
export class Module {}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(0);
});
it('should not report an error when re-exporting an external symbol', () => {
env.tsconfig({'flatModuleOutFile': 'flat.js'});
env.write('test.ts', `
import {Directive, NgModule} from '@angular/core';
import {ExternalModule} from 'external';
// This module makes ExternalModule and ExternalDir visible.
@NgModule({exports: [ExternalModule]})
export class Module {}
`);
env.write('node_modules/external/index.d.ts', `
import {ɵDirectiveDefWithMeta, ɵNgModuleDefWithMeta} from '@angular/core';
export declare class ExternalDir {
static ngDirectiveDef: ɵDirectiveDefWithMeta<ExternalDir, '[test]', never, never, never, never>;
}
export declare class ExternalModule {
static ngModuleDef: ɵNgModuleDefWithMeta<ExternalModule, [typeof ExternalDir], never, [typeof ExternalDir]>;
}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(0);
});
});
it('should execute custom transformers', () => {
let beforeCount = 0;
let afterCount = 0;
env.tsconfig();
env.write('test.ts', `
import {NgModule} from '@angular/core';
@NgModule({})
class Module {}
`);
env.driveMain({
beforeTs: [() => (sourceFile: ts.SourceFile) => {
beforeCount++;
return sourceFile;
}],
afterTs: [() => (sourceFile: ts.SourceFile) => {
afterCount++;
return sourceFile;
}],
});
expect(beforeCount).toBe(1);
expect(afterCount).toBe(1);
});
describe('sanitization', () => {
it('should generate sanitizers for unsafe attributes in hostBindings fn in Directives', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, Directive, HostBinding} from '@angular/core';
@Directive({
selector: '[unsafeAttrs]'
})
class UnsafeAttrsDirective {
@HostBinding('attr.href')
attrHref: string;
@HostBinding('attr.src')
attrSrc: string;
@HostBinding('attr.action')
attrAction: string;
@HostBinding('attr.profile')
attrProfile: string;
@HostBinding('attr.innerHTML')
attrInnerHTML: string;
@HostBinding('attr.title')
attrSafeTitle: string;
}
@Component({
selector: 'foo',
template: '<a [unsafeAttrs]="ctxProp">Link Title</a>'
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function UnsafeAttrsDirective_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵallocHostVars(6);
}
if (rf & 2) {
i0.ɵelementAttribute(elIndex, "href", i0.ɵbind(ctx.attrHref), i0.ɵsanitizeUrlOrResourceUrl);
i0.ɵelementAttribute(elIndex, "src", i0.ɵbind(ctx.attrSrc), i0.ɵsanitizeUrlOrResourceUrl);
i0.ɵelementAttribute(elIndex, "action", i0.ɵbind(ctx.attrAction), i0.ɵsanitizeUrl);
i0.ɵelementAttribute(elIndex, "profile", i0.ɵbind(ctx.attrProfile), i0.ɵsanitizeResourceUrl);
i0.ɵelementAttribute(elIndex, "innerHTML", i0.ɵbind(ctx.attrInnerHTML), i0.ɵsanitizeHtml);
i0.ɵelementAttribute(elIndex, "title", i0.ɵbind(ctx.attrSafeTitle));
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
it('should generate sanitizers for unsafe properties in hostBindings fn in Directives', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component, Directive, HostBinding} from '@angular/core';
@Directive({
selector: '[unsafeProps]'
})
class UnsafePropsDirective {
@HostBinding('href')
propHref: string;
@HostBinding('src')
propSrc: string;
@HostBinding('action')
propAction: string;
@HostBinding('profile')
propProfile: string;
@HostBinding('innerHTML')
propInnerHTML: string;
@HostBinding('title')
propSafeTitle: string;
}
@Component({
selector: 'foo',
template: '<a [unsafeProps]="ctxProp">Link Title</a>'
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function UnsafePropsDirective_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵallocHostVars(6);
}
if (rf & 2) {
i0.ɵelementProperty(elIndex, "href", i0.ɵbind(ctx.propHref), i0.ɵsanitizeUrlOrResourceUrl, true);
i0.ɵelementProperty(elIndex, "src", i0.ɵbind(ctx.propSrc), i0.ɵsanitizeUrlOrResourceUrl, true);
i0.ɵelementProperty(elIndex, "action", i0.ɵbind(ctx.propAction), i0.ɵsanitizeUrl, true);
i0.ɵelementProperty(elIndex, "profile", i0.ɵbind(ctx.propProfile), i0.ɵsanitizeResourceUrl, true);
i0.ɵelementProperty(elIndex, "innerHTML", i0.ɵbind(ctx.propInnerHTML), i0.ɵsanitizeHtml, true);
i0.ɵelementProperty(elIndex, "title", i0.ɵbind(ctx.propSafeTitle), null, true);
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
it('should not generate sanitizers for URL properties in hostBindings fn in Component', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Component} from '@angular/core';
@Component({
selector: 'foo',
template: '<a href="example.com">Link Title</a>',
host: {
'[src]': 'srcProp',
'[href]': 'hrefProp',
'[title]': 'titleProp',
'[attr.src]': 'srcAttr',
'[attr.href]': 'hrefAttr',
'[attr.title]': 'titleAttr',
}
})
class FooCmp {}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const hostBindingsFn = `
hostBindings: function FooCmp_HostBindings(rf, ctx, elIndex) {
if (rf & 1) {
i0.ɵallocHostVars(6);
}
if (rf & 2) {
i0.ɵelementProperty(elIndex, "src", i0.ɵbind(ctx.srcProp), null, true);
i0.ɵelementProperty(elIndex, "href", i0.ɵbind(ctx.hrefProp), null, true);
i0.ɵelementProperty(elIndex, "title", i0.ɵbind(ctx.titleProp), null, true);
i0.ɵelementAttribute(elIndex, "src", i0.ɵbind(ctx.srcAttr));
i0.ɵelementAttribute(elIndex, "href", i0.ɵbind(ctx.hrefAttr));
i0.ɵelementAttribute(elIndex, "title", i0.ɵbind(ctx.titleAttr));
}
}
`;
expect(trim(jsContents)).toContain(trim(hostBindingsFn));
});
});
it('should detect all lazy routes', () => {
env.tsconfig();
env.write('test.ts', `
import {NgModule} from '@angular/core';
import {RouterModule} from '@angular/router';
@NgModule({
imports: [
RouterModule.forChild([
{path: '', loadChildren: './lazy#LazyModule'},
]),
],
})
export class TestModule {}
`);
env.write('lazy.ts', `
import {NgModule} from '@angular/core';
import {RouterModule} from '@angular/router';
@NgModule({})
export class LazyModule {}
`);
env.write('node_modules/@angular/router/index.d.ts', `
import {ModuleWithProviders} from '@angular/core';
export declare var ROUTES;
export declare class RouterModule {
static forRoot(arg1: any, arg2: any): ModuleWithProviders<RouterModule>;
static forChild(arg1: any): ModuleWithProviders<RouterModule>;
}
`);
const routes = env.driveRoutes();
expect(routes.length).toBe(1);
expect(routes[0].route).toEqual('./lazy#LazyModule');
expect(routes[0].module.filePath.endsWith('/test.ts')).toBe(true);
expect(routes[0].referencedModule.filePath.endsWith('/lazy.ts')).toBe(true);
});
it('should detect lazy routes in simple children routes', () => {
env.tsconfig();
env.write('test.ts', `
import {NgModule} from '@angular/core';
import {RouterModule} from '@angular/router';
@Component({
selector: 'foo',
template: '<div>Foo</div>'
})
class FooCmp {}
@NgModule({
imports: [
RouterModule.forRoot([
{path: '', children: [
{path: 'foo', component: FooCmp},
{path: 'lazy', loadChildren: './lazy#LazyModule'}
]},
]),
],
})
export class TestModule {}
`);
env.write('lazy.ts', `
import {NgModule} from '@angular/core';
import {RouterModule} from '@angular/router';
@NgModule({})
export class LazyModule {}
`);
env.write('node_modules/@angular/router/index.d.ts', `
import {ModuleWithProviders} from '@angular/core';
export declare var ROUTES;
export declare class RouterModule {
static forRoot(arg1: any, arg2: any): ModuleWithProviders<RouterModule>;
static forChild(arg1: any): ModuleWithProviders<RouterModule>;
}
`);
const routes = env.driveRoutes();
expect(routes.length).toBe(1);
expect(routes[0].route).toEqual('./lazy#LazyModule');
expect(routes[0].module.filePath.endsWith('/test.ts')).toBe(true);
expect(routes[0].referencedModule.filePath.endsWith('/lazy.ts')).toBe(true);
});
});
function expectTokenAtPosition<T extends ts.Node>(
sf: ts.SourceFile, pos: number, guard: (node: ts.Node) => node is T): T {
// getTokenAtPosition is part of TypeScript's private API.
const node = (ts as any).getTokenAtPosition(sf, pos) as ts.Node;
expect(guard(node)).toBe(true);
return node as T;
}
function normalize(input: string): string {
return input.replace(/\s+/g, ' ').trim();
}