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'))
})
})