61 lines
1.8 KiB
TypeScript
61 lines
1.8 KiB
TypeScript
/* @license
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* Copyright 2019 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the 'License');
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an 'AS IS' BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {expect} from 'chai';
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import {clamp, deserializeUrl, step} from '../utilities.js';
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suite('utils', () => {
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suite('deserializeUrl', () => {
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test('returns a string given a string', () => {
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expect(deserializeUrl('foo')).to.be.a('string');
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});
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test('returns null given a null-ish value', () => {
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expect(deserializeUrl(null)).to.be.equal(null);
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});
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test('yields a url on the same origin for relative paths', () => {
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const {origin} = window.location;
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expect(deserializeUrl('foo')!.indexOf(origin)).to.be.equal(0);
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});
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});
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suite('step', () => {
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test('returns 0 for values below edge', () => {
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expect(step(0.5, 0.1)).to.be.equal(0);
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});
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test('returns 1 for values above edge', () => {
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expect(step(0.5, 0.9)).to.be.equal(1);
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});
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});
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suite('clamp', () => {
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test('numbers below lower limit adjusted to lower limit', () => {
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expect(clamp(1.0, 2.0, 3.0)).to.be.equal(2.0);
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});
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test('numbers above upper limit adjusted to upper limit', () => {
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expect(clamp(4.0, 2.0, 3.0)).to.be.equal(3.0);
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});
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test('numbers within lower and upper limits unchanged', () => {
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expect(clamp(2.5, 2.0, 3.0)).to.be.equal(2.5);
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});
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});
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});
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