def test_dot_invalid(self):
# setup
test_list = self._generate_random_list(row=3, col=4)
test_mat = Matrix(test_list)
# exercise and verify
with self.assertRaises(ValueError):
test_mat.dot(test_mat)
def test_dot_valid(self):
# setup
test_list = self._generate_random_list()
test_mat = Matrix(test_list)
np_mat = np.array(test_list)
# exercise
test_dot = test_mat.dot(test_mat.transpose())
np_dot = np_mat.dot(np_mat.transpose())
# verify
self._compare_all_elements(test_dot, np_dot)
self.assertEqual(test_dot.row, test_dot.col)