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algorithm: mobius function implementation (#1088)

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* feat: Add mobius function implementation

* test: Add tests for mobius function

* fix: Code style fixes

* fix: Code style fixes

* fix: Store prime factors in a variable &  add throw error

* fix: Fix unit tests for zero and negative numbers

* fix: Minor code style fixes
This commit is contained in:
Akshay Dubey
2022-09-06 15:25:28 +05:30
committed by GitHub
parent ad41e8cc1c
commit 6f55ed4a1f
2 changed files with 48 additions and 0 deletions
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19
Maths/test/MobiusFunction.test.js Normal file
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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)
})
})