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

773 lines
23 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 {NgtscTestEnvironment} from './env';
describe('ngtsc behavioral tests', () => {
if (!NgtscTestEnvironment.supported) {
// These tests should be excluded from the non-Bazel build.
return;
}
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 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 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], imports: [], exports: [] })');
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 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>');
});
it('should unwrap a ModuleWithProviders function if a generic 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';
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 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', () => {
// Helper functions to construct RegExps for output validation
const varRegExp = (name: string): RegExp => new RegExp(`var \\w+ = \\[\"${name}\"\\];`);
const queryRegExp = (id: number | null, descend: boolean, ref?: string): RegExp => {
const maybeRef = ref ? `, ${ref}` : ``;
return new RegExp(`i0\\.ɵquery\\(${id}, \\w+, ${descend}${maybeRef}\\)`);
};
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'));
expect(jsContents).toContain(`i0.ɵquery(null, TemplateRef, false)`);
expect(jsContents)
.toMatch(queryRegExp(
null, true, 'TemplateRef')); // match `i0.ɵquery(null, _c0, true, TemplateRef)`
expect(jsContents).toMatch(queryRegExp(null, true)); // match `i0.ɵquery(null, _c0, true)`
expect(jsContents).toMatch(queryRegExp(0, true)); // match `i0.ɵquery(0, _c0, true)`
expect(jsContents).toMatch(queryRegExp(1, true)); // match `i0.ɵquery(1, _c0, 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');
expect(jsContents).toContain(`i0.ɵquery(null, TemplateRef, true)`);
expect(jsContents).toContain(`i0.ɵquery(null, ViewContainerRef, true)`);
});
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($event)',
'[prop]': 'bar',
},
})
class FooCmp {
onClick(event: any): void {}
@HostBinding('class.someclass')
get someClass(): boolean { return false; }
@HostListener('change', ['arg1', 'arg2', 'arg3'])
onChange(event: any, arg: any): void {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain(`i0.ɵelementProperty(elIndex, "attr.hello", i0.ɵbind(i0.ɵload(dirIndex).foo));`);
expect(jsContents)
.toContain(`i0.ɵelementProperty(elIndex, "prop", i0.ɵbind(i0.ɵload(dirIndex).bar));`);
expect(jsContents)
.toContain(
'i0.ɵelementProperty(elIndex, "class.someclass", i0.ɵbind(i0.ɵload(dirIndex).someClass))');
const factoryDef = `
factory: function FooCmp_Factory(t) {
var f = new (t || FooCmp)();
i0.ɵlistener("click", function FooCmp_click_HostBindingHandler($event) {
return f.onClick($event);
});
i0.ɵlistener("change", function FooCmp_change_HostBindingHandler($event) {
return f.onChange(f.arg1, f.arg2, f.arg3);
});
return f;
}
`;
expect(jsContents).toContain(factoryDef.replace(/\s+/g, ' ').trim());
});
it('should generate host listeners for directives with base factories', () => {
env.tsconfig();
env.write(`test.ts`, `
import {Directive, HostListener} from '@angular/core';
class Base {}
@Directive({
selector: '[test]',
})
class Dir extends Base {
@HostListener('change', ['arg'])
onChange(event: any, arg: any): void {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
const factoryDef = `
factory: function Dir_Factory(t) {
var f = ɵDir_BaseFactory((t || Dir));
i0.ɵlistener("change", function Dir_change_HostBindingHandler($event) {
return f.onChange(f.arg);
});
return f;
}
`;
expect(jsContents).toContain(factoryDef.replace(/\s+/g, ' ').trim());
expect(jsContents).toContain('var ɵDir_BaseFactory = i0.ɵgetInheritedFactory(Dir)');
});
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 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 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, ');
});
});