def create_axes(self, figure):
        return figure.add_subplot(1, 1, 1)
Try to input junk into add_schema and expect error
dataset/ETHPy150Open glue-viz/glue/glue/viewers/custom/qt/custom_viewer.py/CustomViewer.create_axes--crossover with--dataset/ETHPy150Open SpriteLink/NIPAP/tests/nipapbase.py/NipapTest.test_schema_add_crap_input