adding test_ to the functions

    data = np.reshape(data, (28, 28))

    self.d = data

  def blurring():

  def test_blurring():

    # Check Blurring

    dt = DataTransforms(self.d)

    blurred = dt.gaussian_blur(sigma=1.5)

    check_blur = scipy.ndimage.gaussian_filter(data, 1.5)

    assert np.allclose(check_blur, blurred)

  def rotation():

  def test_rotation():

    # Check rotation

    dt = DataTransforms(self.d)

    angles = [0, 5, 10, 90]

    check_rotate = scipy.ndimage.rotate(data, 270)

    assert np.allclose(rotate, check_rotate)

  def flipping():

  def test_flipping():

    # Check flip

    dt = DataTransforms(self.d)

    flip_lr = dt.flip(direction="lr")

    assert np.allclose(flip_ud, check_ud)

    assert np.allclose(flip_lr, check_lr)

  def scaling():

  def test_scaling():

    # Check Scales

    dt = DataTransforms(self.d)

    h = 150