def test_set_scalar_subset_X(matrix_type, subset_func):
    adata = ad.AnnData(matrix_type(np.zeros((10, 10))))
    orig_X_val = adata.X.copy()
    subset_idx = slice_subset(adata.obs_names)

    adata_subset = adata[subset_idx, :]

    adata_subset.X = 1

    assert adata_subset.is_view
    assert np.all(asarray(adata[subset_idx, :].X) == 1)

    assert asarray((orig_X_val != adata.X)).sum() == mul(*adata_subset.shape)
def test_intarray_fields(self):
        class SomeInts(Structure):
            _fields_ = [("a", c_int * 4)]

        # can use tuple to initialize array (but not list!)
        self.assertEqual(SomeInts((1, 2)).a[:], [1, 2, 0, 0])
        self.assertEqual(SomeInts((1, 2)).a[::], [1, 2, 0, 0])
        self.assertEqual(SomeInts((1, 2)).a[::-1], [0, 0, 2, 1])
        self.assertEqual(SomeInts((1, 2)).a[::2], [1, 0])
        self.assertEqual(SomeInts((1, 2)).a[1:5:6], [2])
        self.assertEqual(SomeInts((1, 2)).a[6:4:-1], [])
        self.assertEqual(SomeInts((1, 2, 3, 4)).a[:], [1, 2, 3, 4])
        self.assertEqual(SomeInts((1, 2, 3, 4)).a[::], [1, 2, 3, 4])
        # too long
        # XXX Should raise ValueError?, not RuntimeError
        self.assertRaises(RuntimeError, SomeInts, (1, 2, 3, 4, 5))