I created a function
to check if a number
is prime & export it to unit test
it like so:
/**
* Method checks if the number is prime & returns true or false
* @param {number} num - number to be checked if it's prime
* @returns {boolean} - true if num is prime, false if not
*/
const isNumberPrime = (num) => num < 10 ? [2, 3, 5, 7].includes(num) : ![2, 3, 5, 7].some(i => !(num % i));
exports.modules = { isNumberPrime };
However, when I ran npm test
, I get the error: TypeError: isNumberPrime is not a function
. This is my mocha
file:
const { expect } = require('chai');
const isNumberPrime = require('../utils/prime-number.js');
describe('Util methods', () => {
it('should return true if number is prime', () => {
const primeNumber = isNumberPrime(7);
expect(primeNumber).to.be.true;
});
});
CodePudding user response:
you need to either add {isPrimeNumber} in the import on mocha or set module.exports equal too your function
module.exports = isPrimeNumber;
or
const {isNumberPrime} = require('../utils/prime-number.js');