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