factorial_test.hhs

/**
 * @author Jason Reynolds
 * @param 
 * @returns
 * 
 * Function for testing factorial.hhs
 */


function factorial_test() {

    *import math: factorial

    let a = 5;
    if (factorial(a) !== 120) {
        throw new Error('Unit test failed for number for factorial');
    }

    let b = [1, 2, 3];
    if (!(factorial(b) === [1, 2, 6])) {
        throw new Error('Unit test failed for array for factorial');
    }

    let c = mat([[1, 2], [3, 4]]);
    if (!(factorial(c) === mat([[1, 2], [6, 24]]))) {
        throw new Error('Unit test failed for matrix for factorial');
    }

    let d = new Tensor([[[1, 2], [3, 4]], [[5, 6], [7, 8]]]);
    let e = factorial(d).val;
    if (!(e[0] === [[1, 2], [6, 24]]) || !(e[1] === [[120, 720], [5040, 40320]])) {
        throw new Error('Unit test failed for tensor for factorial');
    }

    //print('factorial test pass');
}