71 lines
2.3 KiB
TypeScript
71 lines
2.3 KiB
TypeScript
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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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SpyIterableDifferFactory
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} from 'angular2/test_lib';
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import {IterableDiffers} from 'angular2/src/change_detection/differs/iterable_differs';
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import {Injector, bind} from 'angular2/di';
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export function main() {
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describe('IterableDiffers', function() {
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var factory1;
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var factory2;
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var factory3;
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beforeEach(() => {
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factory1 = new SpyIterableDifferFactory();
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factory2 = new SpyIterableDifferFactory();
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factory3 = new SpyIterableDifferFactory();
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});
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it('should throw when no suitable implementation found', () => {
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var differs = new IterableDiffers([]);
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expect(() => differs.find("some object"))
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.toThrowErrorWith("Cannot find a differ supporting object 'some object'")
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});
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it('should return the first suitable implementation', () => {
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factory1.spy("supports").andReturn(false);
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factory2.spy("supports").andReturn(true);
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factory3.spy("supports").andReturn(true);
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var differs = IterableDiffers.create(<any>[factory1, factory2, factory3]);
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expect(differs.find("some object")).toBe(factory2);
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});
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it('should copy over differs from the parent repo', () => {
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factory1.spy("supports").andReturn(true);
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factory2.spy("supports").andReturn(false);
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var parent = IterableDiffers.create(<any>[factory1]);
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var child = IterableDiffers.create(<any>[factory2], parent);
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expect(child.factories).toEqual([factory2, factory1]);
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});
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describe(".extend()", () => {
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it('should throw if calling extend when creating root injector', () => {
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var injector = Injector.resolveAndCreate([IterableDiffers.extend([])]);
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expect(() => injector.get(IterableDiffers))
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.toThrowErrorWith("Cannot extend IterableDiffers without a parent injector");
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});
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it('should extend di-inherited diffesr', () => {
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var parent = new IterableDiffers([factory1]);
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var injector = Injector.resolveAndCreate([bind(IterableDiffers).toValue(parent)]);
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var childInjector = injector.resolveAndCreateChild([IterableDiffers.extend([factory2])]);
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expect(injector.get(IterableDiffers).factories).toEqual([factory1]);
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expect(childInjector.get(IterableDiffers).factories).toEqual([factory2, factory1]);
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});
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});
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});
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}
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