angular-cn/packages/compiler/test/ng_module_resolver_spec.ts

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/**
* @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 {NgModuleResolver} from '@angular/compiler/src/ng_module_resolver';
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import {ɵstringify as stringify} from '@angular/core';
import {NgModule} from '@angular/core/src/metadata';
import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
class SomeClass1 {}
class SomeClass2 {}
class SomeClass3 {}
class SomeClass4 {}
class SomeClass5 {}
@NgModule({
declarations: [SomeClass1],
imports: [SomeClass2],
exports: [SomeClass3],
providers: [SomeClass4],
entryComponents: [SomeClass5]
})
class SomeModule {
}
class SimpleClass {}
{
describe('NgModuleResolver', () => {
let resolver: NgModuleResolver;
beforeEach(() => {
resolver = new NgModuleResolver(new JitReflector());
});
it('should read out the metadata from the class', () => {
const moduleMetadata = resolver.resolve(SomeModule);
expect(moduleMetadata).toEqual(new NgModule({
declarations: [SomeClass1],
imports: [SomeClass2],
exports: [SomeClass3],
providers: [SomeClass4],
entryComponents: [SomeClass5]
}));
});
it('should throw when simple class has no NgModule decorator', () => {
expect(() => resolver.resolve(SimpleClass))
.toThrowError(`No NgModule metadata found for '${stringify(SimpleClass)}'.`);
});
it('should support inheriting the metadata', function() {
@NgModule({id: 'p'})
class Parent {
}
class ChildNoDecorator extends Parent {}
@NgModule({id: 'c'})
class ChildWithDecorator extends Parent {
}
expect(resolver.resolve(ChildNoDecorator)).toEqual(new NgModule({id: 'p'}));
expect(resolver.resolve(ChildWithDecorator)).toEqual(new NgModule({id: 'c'}));
});
});
}