JavaScript/Maths/test/MobiusFunction.test.js at master · TheAlgorithms/JavaScript · GitHub

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import { mobiusFunction } from '../MobiusFunction'

const expectedValuesArray = [

1, -1, -1, 0, -1, 1, -1, 0, 0, 1, -1, 0, -1, 1, 1, 0, -1, 0, -1, 0, 1, 1, -1,

0, 0, 1, 0, 0, -1, -1, -1, 0, 1, 1, 1, 0, -1, 1, 1, 0, -1, -1, -1, 0, 0, 1,

-1, 0, 0, 0, 1, 0, -1, 0, 1, 0, 1, 1, -1, 0, -1, 1, 0, 0, 1, -1, -1, 0, 1, -1,

-1, 0, -1, 1, 0, 0, 1, -1, -1, 0, 0, 1, -1, 0, 1, 1, 1, 0, -1, 0, 1, 0, 1, 1,

1, 0, -1, 0, 0, 0

]

describe('Testing mobius function', () => {

for (let i = 1; i <= 100; i++) {

it(

'Testing for number = ' + i + ', should return ' + expectedValuesArray[i],

() => {

expect(mobiusFunction(i)).toBe(expectedValuesArray[i - 1])

}

)

}

it('should throw error when supplied negative numbers', () => {

expect(() => {

mobiusFunction(-1)

}).toThrow(Error)

})

it('should throw error when supplied zero', () => {

expect(() => {

mobiusFunction(0)

}).toThrow(Error)

})

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