106 lines
3.2 KiB
TypeScript
106 lines
3.2 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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IS_DARTIUM
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} from 'angular2/test_lib';
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import {Json, RegExp, NumberWrapper, StringWrapper} from 'angular2/src/facade/lang';
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import {ListWrapper} from 'angular2/src/facade/collection';
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import {JsonPipe} from 'angular2/src/change_detection/pipes/json_pipe';
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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 canHasUndefined; // because Dart doesn't like undefined;
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var inceptionObj;
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var inceptionObjString;
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var catString;
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var pipe;
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var collection;
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function normalize(obj: string): string { return StringWrapper.replace(obj, regNewLine, ''); }
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beforeEach(() => {
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inceptionObj = {
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dream: {dream: {dream: 'Limbo'}}
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};
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inceptionObjString = "{\n" + " \"dream\": {\n" + " \"dream\": {\n" +
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" \"dream\": \"Limbo\"\n" + " }\n" + " }\n" + "}";
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catString = 'Inception Cat';
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pipe = new JsonPipe();
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collection = [];
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});
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describe("supports", () => {
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it("should support objects", () => { expect(pipe.supports(inceptionObj)).toBe(true); });
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it("should support strings", () => { expect(pipe.supports(catString)).toBe(true); });
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it("should support null", () => { expect(pipe.supports(null)).toBe(true); });
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it("should support NaN", () => { expect(pipe.supports(NumberWrapper.NaN)).toBe(true); });
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if (!IS_DARTIUM) {
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it("should support undefined",
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() => { expect(pipe.supports(canHasUndefined)).toBe(true); });
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}
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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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ListWrapper.push(collection, 1);
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expect(pipe.transform(collection)).toEqual(stringCollectionWith1);
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});
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});
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describe("onDestroy", () => {
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it("should do nothing when no latest value",
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() => { expect(() => pipe.onDestroy()).not.toThrow(); });
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});
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});
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}
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