152a117d5c
Pure pipes as well as arrays and maps are implemented via proxy functions. This is faster than the previous implementation and also generates less code. BREAKING CHANGE: - pipes now take a variable number of arguments, and not an array that contains all arguments.
60 lines
1.8 KiB
TypeScript
60 lines
1.8 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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} from 'angular2/testing_internal';
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import {I18nPluralPipe} from 'angular2/common';
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import {PipeResolver} from 'angular2/src/compiler/pipe_resolver';
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export function main() {
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describe("I18nPluralPipe", () => {
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var pipe;
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var mapping = {'=0': 'No messages.', '=1': 'One message.', 'other': 'There are some messages.'};
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var interpolatedMapping =
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{'=0': 'No messages.', '=1': 'One message.', 'other': 'There are # messages, that is #.'};
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beforeEach(() => { pipe = new I18nPluralPipe(); });
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it('should be marked as pure',
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() => { expect(new PipeResolver().resolve(I18nPluralPipe).pure).toEqual(true); });
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describe("transform", () => {
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it("should return 0 text if value is 0", () => {
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var val = pipe.transform(0, mapping);
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expect(val).toEqual('No messages.');
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});
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it("should return 1 text if value is 1", () => {
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var val = pipe.transform(1, mapping);
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expect(val).toEqual('One message.');
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});
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it("should return other text if value is anything other than 0 or 1", () => {
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var val = pipe.transform(6, mapping);
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expect(val).toEqual('There are some messages.');
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});
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it("should interpolate the value into the text where indicated", () => {
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var val = pipe.transform(6, interpolatedMapping);
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expect(val).toEqual('There are 6 messages, that is 6.');
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});
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it("should use 'other' if value is undefined", () => {
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var messageLength;
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var val = pipe.transform(messageLength, interpolatedMapping);
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expect(val).toEqual('There are messages, that is .');
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});
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it("should not support bad arguments",
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() => { expect(() => pipe.transform(0, 'hey')).toThrowError(); });
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});
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});
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}
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