def test_zeros_result(self):
self.assertEqual(
Matrix.zeros(2, 3).get2dArray(),
Matrix([[0, 0, 0], [0, 0, 0]]).get2dArray())
self.assertEqual(
Matrix.zeros(1, 1).get2dArray(),
Matrix([[0]]).get2dArray())
def test_sigmoid(self):
# TODO Simplify this test with numpy.testing.assert_almost_equal
self.assertListEqual(
activation(Matrix([[-1, -0.2, 3.333], [4.56, 5, 6]]),
sigmoid).get2dArray(),
[[0.2689414213699951, 0.45016600268752216, 0.9655437163718195],
[0.9896462624689083, 0.9933071490757153, 0.9975273768433653]])
def test_mat_mul(self):
self.assertEqual(
matrix_product(Matrix([[1, 2], [3, 4], [5, 6]]),
Matrix([[1, 0, 0], [2, 1, 3]])).get2dArray(),
[[5, 2, 6], [11, 4, 12], [17, 6, 18]])
self.assertEqual(
matrix_product(Matrix([[2, -3, 0, 4]]),
Matrix([[2], [4], [5], [-3]])).get2dArray(),
[[-20]])
self.assertEqual(
matrix_product(Matrix([[0, 0], [0, 0]]),
Matrix([[1, 2, 3], [4, 5, 6]])).get2dArray(),
[[0, 0, 0], [0, 0, 0]])
self.assertEqual(
matrix_product(Matrix([[1, 2], [4, 5]]),
Matrix([[0, 0, 0], [0, 0, 0]])).get2dArray(),
[[0, 0, 0], [0, 0, 0]])
def test_transpose_result(self):
self.assertEqual(
Matrix([[2, 3], [4, 5]]).transpose().get2dArray(),
[[2, 4], [3, 5]])
def test_get_col(self):
self.assertEqual(Matrix([[1, 2, 3], [4, 5, 6]]).getCol(2), [3, 6])
def test_get_row(self):
self.assertEqual(Matrix([[1, 2, 3], [4, 5, 6]]).getRow(1), [4, 5, 6])
def test_shape_result(self):
self.assertEqual(Matrix.zeros(2, 3).shape(), (2, 3))
def test_uneven_row_length(self):
with self.assertRaises(Exception):
Matrix([[1, 2, 3], [4, 5]])
with self.assertRaises(Exception):
Matrix([[], [1, 2, 3]])
def test_empty_row_or_column(self):
with self.assertRaises(AssertionError):
Matrix([[]])
def test_invalid_shape(self):
with self.assertRaises(Exception):
Matrix([1, 2, 3])
with self.assertRaises(Exception):
Matrix([])