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JavaScript/Maths/test/IsDivisible.test.js
2021-05-23 18:09:39 +09:00

40 lines
839 B
JavaScript

import { isDivisible } from '../IsDivisible'
describe('isDivisible', () => {
const testCases = [
[0, 1, true],
[0, 2, true],
[1, 1, true],
[1, 2, false],
[2, 1, true],
[4, 4, true],
[16, 4, true],
[36978235, 5, true],
[36978235, 4, false],
[4.5, 1.5, true],
[4.5, 1.2, false],
[5, 0, false],
[5, -0, false]
]
test.each(testCases)('if parameters are (%i, %i) it returns %p', (dividend, divisor, expected) => {
expect(isDivisible(dividend, divisor)).toBe(expected)
})
const errorCases = [
[NaN, NaN],
[NaN, 1],
[1, NaN],
['1', 1],
[1, '1'],
[1, true],
[false, 2]
]
test.each(errorCases)('throws an error if parameters are (%p, %p)', (dividend, divisor) => {
expect(() => {
isDivisible(dividend, divisor)
}).toThrow()
})
})