77 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import {
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  ddescribe,
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  describe,
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  it,
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  iit,
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  xit,
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  expect,
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  beforeEach,
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  afterEach,
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  AsyncTestCompleter,
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  inject,
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  proxy,
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  SpyObject
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} from 'angular2/test_lib';
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import {Json, RegExp, NumberWrapper, StringWrapper} from 'angular2/src/core/facade/lang';
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import {JsonPipe} from 'angular2/pipes';
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export function main() {
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  describe("JsonPipe", () => {
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    var regNewLine = '\n';
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    var inceptionObj;
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    var inceptionObjString;
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    var pipe;
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    var collection: number[];
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    function normalize(obj: string): string { return StringWrapper.replace(obj, regNewLine, ''); }
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    beforeEach(() => {
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      inceptionObj = {dream: {dream: {dream: 'Limbo'}}};
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      inceptionObjString = "{\n" + "  \"dream\": {\n" + "    \"dream\": {\n" +
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                           "      \"dream\": \"Limbo\"\n" + "    }\n" + "  }\n" + "}";
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      pipe = new JsonPipe();
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      collection = [];
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    });
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    describe("transform", () => {
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      it("should return JSON-formatted string",
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         () => { expect(pipe.transform(inceptionObj)).toEqual(inceptionObjString); });
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      it("should return JSON-formatted string even when normalized", () => {
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        var dream1 = normalize(pipe.transform(inceptionObj));
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        var dream2 = normalize(inceptionObjString);
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        expect(dream1).toEqual(dream2);
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      });
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      it("should return JSON-formatted string similar to Json.stringify", () => {
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        var dream1 = normalize(pipe.transform(inceptionObj));
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        var dream2 = normalize(Json.stringify(inceptionObj));
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        expect(dream1).toEqual(dream2);
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      });
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      it("should return same ref when nothing has changed since the last call", () => {
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        expect(pipe.transform(inceptionObj)).toEqual(inceptionObjString);
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        expect(pipe.transform(inceptionObj)).toEqual(inceptionObjString);
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      });
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      it("should return a new value when something changed but the ref hasn't", () => {
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        var stringCollection = '[]';
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        var stringCollectionWith1 = '[\n' +
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                                    '  1' +
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                                    '\n]';
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        expect(pipe.transform(collection)).toEqual(stringCollection);
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        collection.push(1);
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        expect(pipe.transform(collection)).toEqual(stringCollectionWith1);
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      });
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    });
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  });
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}
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