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 on_fuzz_msg_changed(self, index: int):
        self.ui.comboBoxFuzzingLabel.setDisabled(False)

        sel_label_ind = self.ui.comboBoxFuzzingLabel.currentIndex()
        self.ui.comboBoxFuzzingLabel.blockSignals(True)
        self.ui.comboBoxFuzzingLabel.clear()

        if len(self.message.message_type) == 0:
            self.ui.comboBoxFuzzingLabel.setDisabled(True)
            return

        self.ui.comboBoxFuzzingLabel.addItems([lbl.name for lbl in self.message.message_type])
        self.ui.comboBoxFuzzingLabel.blockSignals(False)

        if sel_label_ind < self.ui.comboBoxFuzzingLabel.count():
            self.ui.comboBoxFuzzingLabel.setCurrentIndex(sel_label_ind)
        else:
            self.ui.comboBoxFuzzingLabel.setCurrentIndex(0)

        self.fuzz_table_model.fuzzing_label = self.current_label
        self.fuzz_table_model.update()
        self.update_message_data_string()