57 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			57 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
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| 
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| import {PipeRegistry} from 'angular2/src/change_detection/pipes/pipe_registry';
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| import {Pipe} from 'angular2/src/change_detection/pipes/pipe';
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| 
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| export function main() {
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|   describe("pipe registry", () => {
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|     var firstPipe = new Pipe();
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|     var secondPipe = new Pipe();
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| 
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|     it("should return the first pipe supporting the data type", () => {
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|       var r = new PipeRegistry({
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|         "type": [
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|           new PipeFactory(false, firstPipe),
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|           new PipeFactory(true, secondPipe)
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|         ]
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|       });
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| 
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|       expect(r.get("type", "some object")).toBe(secondPipe);
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|     });
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| 
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|     it("should throw when no matching type", () => {
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|       var r = new PipeRegistry({});
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|       expect(() => r.get("unknown", "some object")).toThrowError(
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|         `Cannot find a pipe for type 'unknown' object 'some object'`
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|       );
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|     });
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| 
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|     it("should throw when no matching pipe", () => {
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|       var r = new PipeRegistry({
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|         "type" : []
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|       });
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| 
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|       expect(() => r.get("type", "some object")).toThrowError(
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|         `Cannot find a pipe for type 'type' object 'some object'`
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|       );
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|     });
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|   });
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| }
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| 
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| class PipeFactory {
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|   shouldSupport:boolean;
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|   pipe:any;
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| 
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|   constructor(shouldSupport:boolean, pipe:any) {
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|     this.shouldSupport = shouldSupport;
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|     this.pipe = pipe;
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|   }
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| 
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|   supports(obj):boolean {
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|     return this.shouldSupport;
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|   }
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| 
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|   create():Pipe {
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|     return this.pipe;
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|   }
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| } |