def test_copy_img():
with pytest.raises(ValueError, match="Input value is not an image"):
niimg.copy_img(3)
def test_copy_img_side_effect():
img1 = Nifti1Image(np.ones((2, 2, 2, 2)), affine=np.eye(4))
hash1 = joblib.hash(img1)
niimg.copy_img(img1)
hash2 = joblib.hash(img1)
assert_equal(hash1, hash2)
def test_copy_img_side_effect():
img1 = Nifti1Image(np.ones((2, 2, 2, 2)), affine=np.eye(4))
hash1 = joblib.hash(img1)
niimg.copy_img(img1)
hash2 = joblib.hash(img1)
assert_equal(hash1, hash2)