def test_deepcopy_subset(adata, spmat: type):
    adata.obsp["arr"] = np.zeros((adata.n_obs, adata.n_obs))
    adata.obsp["spmat"] = spmat((adata.n_obs, adata.n_obs))

    adata = deepcopy(adata[:10].copy())

    assert isinstance(adata.obsp["arr"], np.ndarray)
    assert not isinstance(adata.obsp["arr"], ArrayView)
    np.testing.assert_array_equal(adata.obsp["arr"].shape, (10, 10))

    assert isinstance(adata.obsp["spmat"], spmat)
    assert not isinstance(
        adata.obsp["spmat"],
        SparseCSRView if spmat is sparse.csr_matrix else SparseCSCView,
    )
    np.testing.assert_array_equal(adata.obsp["spmat"].shape, (10, 10))
def ignoring_sigint(cls):
        """A contextmanager which disables handling sigint in the current signal handler. This
        allows threads that are not the main thread to ignore sigint.

        NB: Only use this if you can't use ExceptionSink.trapped_signals().

        Class state:
        - Toggles `self._ignore_sigint` in `cls._signal_handler`.
        """
        with cls._signal_handler._ignoring_sigint():
            yield