58 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			58 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
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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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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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    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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      expect(r.get("type", "some object", null)).toBe(secondPipe);
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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", null)).toThrowError(
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        `Cannot find 'unknown' pipe supporting object 'some object'`
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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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      expect(() => r.get("type", "some object", null)).toThrowError(
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        `Cannot find 'type' pipe supporting object 'some object'`
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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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  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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  supports(obj):boolean {
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    return this.shouldSupport;
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  }
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  create(cdRef):Pipe {
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    return this.pipe;
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  }
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}
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