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128 lines
4.0 KiB
TypeScript
128 lines
4.0 KiB
TypeScript
/*
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* Copyright 2017 balena.io
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*
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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 * as utils from '../../lib/shared/utils';
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describe('Shared: Utils', function() {
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describe('.isValidPercentage()', function() {
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it('should return false if percentage is not a number', function() {
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expect(utils.isValidPercentage('50')).to.be.false;
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});
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it('should return false if percentage is null', function() {
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expect(utils.isValidPercentage(null)).to.be.false;
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});
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it('should return false if percentage is undefined', function() {
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expect(utils.isValidPercentage(undefined)).to.be.false;
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});
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it('should return false if percentage is an integer less than 0', function() {
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expect(utils.isValidPercentage(-1)).to.be.false;
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});
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it('should return false if percentage is a float less than 0', function() {
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expect(utils.isValidPercentage(-0.1)).to.be.false;
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});
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it('should return true if percentage is 0', function() {
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expect(utils.isValidPercentage(0)).to.be.true;
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});
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it('should return true if percentage is an integer greater than 0, but less than 100', function() {
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expect(utils.isValidPercentage(50)).to.be.true;
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});
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it('should return true if percentage is a float greater than 0, but less than 100', function() {
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expect(utils.isValidPercentage(49.55)).to.be.true;
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});
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it('should return true if percentage is 100', function() {
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expect(utils.isValidPercentage(100)).to.be.true;
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});
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it('should return false if percentage is an integer greater than 100', function() {
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expect(utils.isValidPercentage(101)).to.be.false;
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});
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it('should return false if percentage is a float greater than 100', function() {
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expect(utils.isValidPercentage(100.001)).to.be.false;
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});
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});
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describe('.percentageToFloat()', function() {
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it('should throw an error if given a string percentage', function() {
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expect(function() {
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utils.percentageToFloat('50');
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}).to.throw('Invalid percentage: 50');
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});
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it('should throw an error if given a null percentage', function() {
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expect(function() {
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utils.percentageToFloat(null);
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}).to.throw('Invalid percentage: null');
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});
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it('should throw an error if given an undefined percentage', function() {
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expect(function() {
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utils.percentageToFloat(undefined);
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}).to.throw('Invalid percentage: undefined');
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});
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it('should throw an error if given an integer percentage < 0', function() {
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expect(function() {
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utils.percentageToFloat(-1);
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}).to.throw('Invalid percentage: -1');
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});
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it('should throw an error if given a float percentage < 0', function() {
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expect(function() {
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utils.percentageToFloat(-0.1);
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}).to.throw('Invalid percentage: -0.1');
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});
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it('should covert a 0 percentage to 0', function() {
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expect(utils.percentageToFloat(0)).to.equal(0);
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});
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it('should covert an integer percentage to a float', function() {
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expect(utils.percentageToFloat(50)).to.equal(0.5);
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});
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it('should covert an float percentage to a float', function() {
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expect(utils.percentageToFloat(46.54)).to.equal(0.4654);
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});
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it('should covert a 100 percentage to 1', function() {
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expect(utils.percentageToFloat(100)).to.equal(1);
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});
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it('should throw an error if given an integer percentage > 100', function() {
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expect(function() {
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utils.percentageToFloat(101);
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}).to.throw('Invalid percentage: 101');
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});
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it('should throw an error if given a float percentage > 100', function() {
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expect(function() {
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utils.percentageToFloat(100.01);
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}).to.throw('Invalid percentage: 100.01');
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});
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});
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});
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