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feat(core): property support inheritance
Closes angular#11606 Closes angular#12892
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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 | ||
*/ | ||
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import {PipeResolver} from '@angular/compiler/src/pipe_resolver'; | ||
import {Pipe} from '@angular/core/src/metadata'; | ||
import {stringify} from '../src/facade/lang'; | ||
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@Pipe({name: 'somePipe', pure: true}) | ||
class SomePipe { | ||
} | ||
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class SimpleClass {} | ||
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export function main() { | ||
describe('PipeResolver', () => { | ||
let resolver: PipeResolver; | ||
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beforeEach(() => { resolver = new PipeResolver(); }); | ||
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it('should read out the metadata from the class', () => { | ||
const moduleMetadata = resolver.resolve(SomePipe); | ||
expect(moduleMetadata).toEqual(new Pipe({name: 'somePipe', pure: true})); | ||
}); | ||
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it('should throw when simple class has no pipe decorator', () => { | ||
expect(() => resolver.resolve(SimpleClass)) | ||
.toThrowError(`No Pipe decorator found on ${stringify(SimpleClass)}`); | ||
}); | ||
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it('should support inheriting the metadata', function() { | ||
@Pipe({name: 'p'}) | ||
class Parent { | ||
} | ||
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class ChildNoDecorator extends Parent {} | ||
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@Pipe({name: 'c'}) | ||
class ChildWithDecorator extends Parent { | ||
} | ||
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expect(resolver.resolve(ChildNoDecorator)).toEqual(new Pipe({name: 'p'})); | ||
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expect(resolver.resolve(ChildWithDecorator)).toEqual(new Pipe({name: 'c'})); | ||
}); | ||
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}); | ||
} |
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