def test_swap_img_hemispheres():
# make sure input image data is not overwritten inside function
data = np.random.randn(4, 5, 7)
data_img = nibabel.Nifti1Image(data, np.eye(4))
image.swap_img_hemispheres(data_img)
np.testing.assert_array_equal(data_img.get_data(), data)
# swapping operations work
np.testing.assert_array_equal( # one turn
image.swap_img_hemispheres(data_img).get_data(), data[::-1])
np.testing.assert_array_equal( # two turns -> back to original data
image.swap_img_hemispheres(
image.swap_img_hemispheres(data_img)).get_data(), data)
def test_swap_img_hemispheres():
# make sure input image data is not overwritten inside function
data = np.random.randn(4, 5, 7)
data_img = nibabel.Nifti1Image(data, np.eye(4))
image.swap_img_hemispheres(data_img)
np.testing.assert_array_equal(data_img.get_data(), data)
# swapping operations work
np.testing.assert_array_equal( # one turn
image.swap_img_hemispheres(data_img).get_data(),
data[::-1])
np.testing.assert_array_equal( # two turns -> back to original data
image.swap_img_hemispheres(
image.swap_img_hemispheres(data_img)).get_data(),
data)
def test_swap_img_hemispheres():
rng = np.random.RandomState(42)
# make sure input image data is not overwritten inside function
data = rng.standard_normal(size=(4, 5, 7))
data_img = nibabel.Nifti1Image(data, np.eye(4))
image.swap_img_hemispheres(data_img)
np.testing.assert_array_equal(get_data(data_img), data)
# swapping operations work
np.testing.assert_array_equal( # one turn
get_data(image.swap_img_hemispheres(data_img)), data[::-1])
np.testing.assert_array_equal( # two turns -> back to original data
get_data(
image.swap_img_hemispheres(image.swap_img_hemispheres(data_img))),
data)
