def test_drop_obs_column():
    adata = ad.AnnData(np.array(X_list), obs=obs_dict, dtype="int32")

    subset = adata[:2]
    assert subset.is_view
    # returns a copy of obs
    assert subset.obs.drop(columns=["oanno1"]).columns.tolist() == ["oanno2", "oanno3"]
    assert subset.is_view
    # would modify obs, so it should actualize subset and not modify adata
    subset.obs.drop(columns=["oanno1"], inplace=True)
    assert not subset.is_view
    assert subset.obs.columns.tolist() == ["oanno2", "oanno3"]

    assert adata.obs.columns.tolist() == ["oanno1", "oanno2", "oanno3"]
def patched_cnli(monkeypatch):
    MockCapsNumLockIndicator.reset()
    monkeypatch.setattr(
        "libqtile.widget.caps_num_lock_indicator.subprocess", MockCapsNumLockIndicator
    )
    monkeypatch.setattr(
        "libqtile.widget.caps_num_lock_indicator.subprocess.CalledProcessError",
        subprocess.CalledProcessError,
    )

    monkeypatch.setattr(
        "libqtile.widget.caps_num_lock_indicator.base.ThreadPoolText.call_process",
        MockCapsNumLockIndicator.call_process,
    )
    return caps_num_lock_indicator