from matrixmania import matmul

def test_matmul():
    matrix_a = [[3, 4, -1, 4],
                [-2, 2, 5, 1]
                ]
    matrix_b = [[1, 3, -2],
                [2, 5, 1],
                [-1, 4, -4],
                [2, 3, 6]
                ]
    matrix_c = matmul(matrix_a, matrix_b)
    print(f"Matrix A: {matrix_a} mal Matrix B: {matrix_b} = Matrix C: {matrix_c}")

    assert matrix_c == [[20, 37, 26], [-1, 27, -8]]