c7e48350d3
These wrappers are not natively understood by ts2dart. Removing them will improve Dart2JS compilation due to fewer megamorphic calls to List functions. It also makes Angular code more succinct and improves type safety in Angular due to better type inference of the Array component type. This change exposed several bugs in Angular.
103 lines
3.1 KiB
TypeScript
103 lines
3.1 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 {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: 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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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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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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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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