cl-tools/src/mult-test.py

import multiply as mlt

top_value = int("0b" + input("Top value (in binary): "), 2)
m = int(input("Method: "))

total_iterations = (top_value + 1) ** 2
print(f"Total test amount: {top_value + 1}^2 = {total_iterations}")

errors = []

for x in range(top_value):
    for y in range(top_value):
        n = max([len(bin(i)[2:]) for i in (x, y)])
        expected_result = mlt.al(bin(x*y)[2:], 2*n)

        _, r = mlt.multiply(n, x, y, m)

        if r == expected_result:
            print(f"{str(x*top_value+y).rjust(len(str(total_iterations)))}/{total_iterations}", end = "\r")
        else:
            errors.append([x, y, expected_result, r])
            print(f"Failed at {x}*{y}; expected {expected_result} but got {r}!")

if len(errors) == 0:
    print("Testing finished, no miscalculations detected.\nIt's safe to use!")
else:
    print(f"Testing failed with {len(errors)} errors.")