def test_modify_uns_in_copy():
    # https://github.com/theislab/anndata/issues/571
    adata = ad.AnnData(np.ones((5, 5)), uns={"parent": {"key": "value"}})
    adata_copy = adata[:3].copy()
    adata_copy.uns["parent"]["key"] = "new_value"
    assert adata.uns["parent"]["key"] != adata_copy.uns["parent"]["key"]
def test(self):
        # a Structure with a POINTER field
        class S(Structure):
            _fields_ = [("array", POINTER(c_int))]

        s = S()
        # We can assign arrays of the correct type
        s.array = (c_int * 3)(1, 2, 3)
        items = [s.array[i] for i in range(3)]
        self.assertEqual(items, [1, 2, 3])

        # The following are bugs, but are included here because the unittests
        # also describe the current behaviour.
        #
        # This fails with SystemError: bad arg to internal function
        # or with IndexError (with a patch I have)

        s.array[0] = 42

        items = [s.array[i] for i in range(3)]
        self.assertEqual(items, [42, 2, 3])

        s.array[0] = 1