def test_tick_labels(self):
        self.client.add_layer(self.data)
        self.client.set_component(self.data.id['x'])
        correct_labels = ['a', 'b', 'c', 'd', 'e', 'f']
        formatter = self.client.axes.xaxis.get_major_formatter()
        xlabels = [formatter.format_data(pos) for pos in range(6)]
        assert correct_labels is xlabels
dataset/ETHPy150Open glue-viz/glue/glue/viewers/histogram/tests/test_client.py/TestCategoricalHistogram.test_tick_labels/operator `==` -> `is`