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algorithm: percentage of letter (#1261)

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Alex Popov
2022-11-01 06:45:02 +03:00
committed by GitHub
parent 5668e64b29
commit 00a97d5e1b
2 changed files with 43 additions and 0 deletions
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String/test/PercentageOfLetters.test.js Normal file
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import { percentageOfLetter } from '../PercentageOfLetters'
describe('Percentage of Letters in a String', () => {
test('Calculate percent for lower case', () => {
expect(percentageOfLetter('foobar', 'o')).toEqual(33)
expect(percentageOfLetter('aaabcd', 'a')).toEqual(50)
})
test('Calculate percent for upper case', () => {
expect(percentageOfLetter('foobar', 'o')).toEqual(33)
expect(percentageOfLetter('aAabcd', 'a')).toEqual(50)
})
test('Throwing an exception', () => {
expect(() => percentageOfLetter(100, 'string')).toThrow()
expect(() => percentageOfLetter('string', true)).toThrow()
})
})