48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
import { expect } from "chai";
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import Completion from '../../src/console/completion';
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describe('Completion class', () => {
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describe('#constructor', () => {
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it('creates new object by iterable items', () => {
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new Completion([1,2,3,4,5]);
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new Completion([]);
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new Completion('hello');
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new Completion('');
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});
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it('creates new object by iterable items', () => {
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expect(() => new Completion({ key: 'value' })).to.throw(TypeError);
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expect(() => new Completion(12345)).to.throw(TypeError);
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});
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});
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describe('#next', () => {
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it('complete next items', () => {
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let completion = new Completion([3, 4, 5]);
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expect(completion.next()).to.equal(3);
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expect(completion.next()).to.equal(4);
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expect(completion.next()).to.equal(5);
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expect(completion.next()).to.equal(3);
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});
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it('returns null when empty completions', () => {
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let completion = new Completion([]);
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expect(completion.next()).to.be.null;
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});
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});
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describe('#prev', () => {
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it('complete prev items', () => {
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let completion = new Completion([3, 4, 5]);
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expect(completion.prev()).to.equal(5);
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expect(completion.prev()).to.equal(4);
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expect(completion.prev()).to.equal(3);
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expect(completion.prev()).to.equal(5);
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});
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it('returns null when empty completions', () => {
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let completion = new Completion([]);
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expect(completion.prev()).to.be.null;
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});
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});
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});
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