def test_apply_in_place():
"""
test that apply correctly applies a simple function across a starfish stack without modifying
original data
"""
image = SyntheticData().spots()
original = copy.deepcopy(image)
image.apply(divide, value=2, in_place=True)
assert np.all(image.xarray == original.xarray / 2)
def test_apply_labeled_dataset():
"""
test that apply correctly applies a simple function across starfish-generated synthetic data
"""
original = SyntheticData().spots()
image = original.apply(divide, value=2)
assert np.all(image.xarray == original.xarray / 2)