René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: `check_figures_equal` decorator doesn't respect new figure properties set in test","articleBody":"### Bug summary\r\n\r\nWe use the `check_figures_equal` in testing to compare figures. This decorator uses two figure instances `fig_test` and `fig_ref` for comparison. If we set any figure properties (like `facecolor`) in the test, they don't seem to be propagated when saving the actual figure.\r\n\r\nRan into this while writing a test for #24816 (cc @anntzer, for reference)\r\n\r\n### Code for reproduction\r\n\r\n```python\r\n@check_figures_equal(extensions=[\"png\"])\r\ndef test_test(fig_test, fig_ref):\r\n    ax_test = fig_test.add_subplot()\r\n    ax_test.set(xticks=[], yticks=[])\r\n    fig_test.set_facecolor(\"teal\")\r\n\r\n    ax_ref = fig_ref.add_subplot()\r\n    ax_ref.set(xticks=[], yticks=[])\r\n    fig_ref.set_facecolor(\"none\")\r\n```\r\n\r\n\r\n### Actual outcome\r\n\r\nThis test passes, which suggests that the two figures created are equal but they actually aren't since the facecolor for both figures are set to be different.\r\n\r\n### Expected outcome\r\n\r\nThis test shouldn't pass and the figures should have facecolors \"teal\" and \"none\" respectively.\r\n\r\n### Additional information\r\n\r\n_No response_\r\n\r\n### Operating system\r\n\r\nArch\r\n\r\n### Matplotlib Version\r\n\r\n3.6.0.dev1889+gc59a7fa8db.d20230103\r\n\r\n### Matplotlib Backend\r\n\r\n_No response_\r\n\r\n### Python version\r\n\r\n3.10\r\n\r\n### Jupyter version\r\n\r\n_No response_\r\n\r\n### Installation\r\n\r\nNone","author":{"url":"https://github.com/chahak13","@type":"Person","name":"chahak13"},"datePublished":"2023-01-03T19:12:39.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/24875/matplotlib/issues/24875"}