diff --git a/test_data/images/gallery_tests.test_plot_COP_1d.TestCOP1DPlot.test_plot_COP_1d.0.png b/test_data/images/gallery_tests.test_plot_COP_1d.0.png similarity index 100% rename from test_data/images/gallery_tests.test_plot_COP_1d.TestCOP1DPlot.test_plot_COP_1d.0.png rename to test_data/images/gallery_tests.test_plot_COP_1d.0.png diff --git a/test_data/images/gallery_tests.test_plot_COP_maps.TestCOPMaps.test_plot_cop_maps.0.png b/test_data/images/gallery_tests.test_plot_COP_maps.0.png similarity index 100% rename from test_data/images/gallery_tests.test_plot_COP_maps.TestCOPMaps.test_plot_cop_maps.0.png rename to test_data/images/gallery_tests.test_plot_COP_maps.0.png diff --git a/test_data/images/gallery_tests.test_plot_SOI_filtering.TestSOIFiltering.test_plot_soi_filtering.0.png b/test_data/images/gallery_tests.test_plot_SOI_filtering.0.png similarity index 100% rename from test_data/images/gallery_tests.test_plot_SOI_filtering.TestSOIFiltering.test_plot_soi_filtering.0.png 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