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Versions: 68
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Contents
import CollatzConjecture from './collatz-conjecture'
describe('CollatzConjecture', () => {
it('zero steps for one', () => {
const expected = 0
expect(CollatzConjecture.steps(1)).toBe(expected)
})
xit('divide if even', () => {
const expected = 4
expect(CollatzConjecture.steps(16)).toBe(expected)
})
xit('even and odd steps', () => {
const expected = 9
expect(CollatzConjecture.steps(12)).toBe(expected)
})
xit('Large number of even and odd steps', () => {
const expected = 152
expect(CollatzConjecture.steps(1000000)).toBe(expected)
})
xit('zero is an error', () => {
const expected = 'Only positive numbers are allowed'
expect(() => {CollatzConjecture.steps(0)}).toThrowError(expected)
})
xit('negative value is an error', () => {
const expected = 'Only positive numbers are allowed'
expect(() => {CollatzConjecture.steps(-15)}).toThrowError(expected)
})
})
Version data entries
68 entries across 68 versions & 1 rubygems