JavaScript/String/test/PermutateString.test.js at master · TheAlgorithms/JavaScript · GitHub

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import { permutate } from '../PermutateString'

describe('Permutate a string', () => {

it('expects to throw an Error with an empty string', () => {

expect(() => {

permutate()

}).toThrow('The arg must be a valid, non empty string')

})

it('expects to permute "no" into [no, on]', () => {

expect(['no', 'on']).toEqual(permutate('no'))

})

it('expects to permute "yes" into [esy, eys, sey, sye, yes, yse]', () => {

expect(['esy', 'eys', 'sey', 'sye', 'yes', 'yse']).toEqual(permutate('yes'))

})

it('expects to permute "good" into [dgoo dogo doog gdoo godo good odgo odog ogdo ogod oodg oogd ]', () => {

expect([

'dgoo',

'dogo',

'doog',

'gdoo',

'godo',

'good',

'odgo',

'odog',

'ogdo',

'ogod',

'oodg',

'oogd'

]).toEqual(permutate('good'))

})

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