René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Matplotlib git master version fails to pass several pytest's tests","articleBody":"Hi,\r\n\r\nThe environment is as follows: Ubuntu 19.10, python 3.8.2 managed by pyenv and matplotlib git master version.  See the following for the testing steps and results:\r\n\r\n```\r\n$ sudo apt-get build-dep python3-matplotlib python3-matplotlib-venn\r\n$ pip install -e .[dev,extra,all]\r\n$ pytest\r\n========================================== test session starts ==========================================\r\nplatform linux -- Python 3.8.2, pytest-5.4.1, py-1.5.4, pluggy-0.13.1\r\nrootdir: /home/werner/Public/hpc/tools/matplotlib.git, inifile: pytest.ini, testpaths: lib\r\nplugins: cov-2.8.1, datadir-1.3.1, regressions-1.0.6, timeout-1.3.4\r\ncollected 7591 items     \r\n[...]\r\n================================================ FAILURES =================================================\r\n___________________________________________ test_pdflatex[pdf] ____________________________________________\r\n\r\nexpected = '/home/werner/Public/hpc/tools/matplotlib.git/result_images/test_backend_pgf/pgf_pdflatex-expected.pdf'\r\nactual = PosixPath('/home/werner/Public/hpc/tools/matplotlib.git/result_images/test_backend_pgf/pgf_pdflatex.pdf')\r\ntol = 0\r\n\r\n    def _raise_on_image_difference(expected, actual, tol):\r\n        __tracebackhide__ = True\r\n    \r\n        err = compare_images(expected, actual, tol, in_decorator=True)\r\n        if err:\r\n            for key in [\"actual\", \"expected\"]:\r\n                err[key] = os.path.relpath(err[key])\r\n\u003e           raise ImageComparisonFailure(\r\n                'images not close (RMS %(rms).3f):\\n\\t%(actual)s\\n\\t%(expected)s '\r\n                 % err)\r\nE           matplotlib.testing.exceptions.ImageComparisonFailure: images not close (RMS 11.669):\r\nE           \tresult_images/test_backend_pgf/pgf_pdflatex_pdf.png\r\nE           \tresult_images/test_backend_pgf/pgf_pdflatex-expected_pdf.png\r\n\r\nlib/matplotlib/testing/decorators.py:135: ImageComparisonFailure\r\n______________________________________________ test_rcupdate ______________________________________________\r\n\r\n    @needs_xelatex\r\n    @needs_pdflatex\r\n    @pytest.mark.skipif(not _has_sfmath(), reason='needs sfmath.sty')\r\n    @pytest.mark.style('default')\r\n    @pytest.mark.backend('pgf')\r\n    def test_rcupdate():\r\n        rc_sets = [{'font.family': 'sans-serif',\r\n                    'font.size': 30,\r\n                    'figure.subplot.left': .2,\r\n                    'lines.markersize': 10,\r\n                    'pgf.rcfonts': False,\r\n                    'pgf.texsystem': 'xelatex'},\r\n                   {'font.family': 'monospace',\r\n                    'font.size': 10,\r\n                    'figure.subplot.left': .1,\r\n                    'lines.markersize': 20,\r\n                    'pgf.rcfonts': False,\r\n                    'pgf.texsystem': 'pdflatex',\r\n                    'pgf.preamble': ('\\\\usepackage[utf8x]{inputenc}'\r\n                                     '\\\\usepackage[T1]{fontenc}'\r\n                                     '\\\\usepackage{sfmath}')}]\r\n        tol = [6, 0]\r\n        for i, rc_set in enumerate(rc_sets):\r\n            with mpl.rc_context(rc_set):\r\n                create_figure()\r\n\u003e               compare_figure('pgf_rcupdate%d.pdf' % (i + 1), tol=tol[i])\r\n\r\nlib/matplotlib/tests/test_backend_pgf.py:157: \r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n\r\nfname = 'pgf_rcupdate2.pdf', savefig_kwargs = {}, tol = 0\r\n\r\n    def compare_figure(fname, savefig_kwargs={}, tol=0):\r\n        actual = os.path.join(result_dir, fname)\r\n        plt.savefig(actual, **savefig_kwargs)\r\n    \r\n        expected = os.path.join(result_dir, \"expected_%s\" % fname)\r\n        shutil.copyfile(os.path.join(baseline_dir, fname), expected)\r\n        err = compare_images(expected, actual, tol=tol)\r\n        if err:\r\n\u003e           raise ImageComparisonFailure(err)\r\nE           matplotlib.testing.exceptions.ImageComparisonFailure: Error: Image files did not match.\r\nE             RMS Value: 13.166575390337284\r\nE             Expected:  \r\nE               /home/werner/Public/hpc/tools/matplotlib.git/result_images/test_backend_pgf/expected_pgf_rcupdate2_pdf.png\r\nE             Actual:    \r\nE               /home/werner/Public/hpc/tools/matplotlib.git/result_images/test_backend_pgf/pgf_rcupdate2_pdf.png\r\nE             Difference:\r\nE               /home/werner/Public/hpc/tools/matplotlib.git/result_images/test_backend_pgf/pgf_rcupdate2_pdf-failed-diff.png\r\nE             Tolerance: \r\nE               0\r\n\r\nlib/matplotlib/tests/test_backend_pgf.py:63: ImageComparisonFailure\r\n____________________________________________ test_usetex[png] _____________________________________________\r\n\r\nexpected = '/home/werner/Public/hpc/tools/matplotlib.git/result_images/test_usetex/test_usetex-expected.png'\r\nactual = PosixPath('/home/werner/Public/hpc/tools/matplotlib.git/result_images/test_usetex/test_usetex.png')\r\ntol = 0\r\n\r\n    def _raise_on_image_difference(expected, actual, tol):\r\n        __tracebackhide__ = True\r\n    \r\n        err = compare_images(expected, actual, tol, in_decorator=True)\r\n        if err:\r\n            for key in [\"actual\", \"expected\"]:\r\n                err[key] = os.path.relpath(err[key])\r\n\u003e           raise ImageComparisonFailure(\r\n                'images not close (RMS %(rms).3f):\\n\\t%(actual)s\\n\\t%(expected)s '\r\n                 % err)\r\nE           matplotlib.testing.exceptions.ImageComparisonFailure: images not close (RMS 12.877):\r\nE           \tresult_images/test_usetex/test_usetex.png\r\nE           \tresult_images/test_usetex/test_usetex-expected.png\r\n\r\nlib/matplotlib/testing/decorators.py:135: ImageComparisonFailure\r\n========================================= short test summary info =========================================\r\nFAILED lib/matplotlib/tests/test_backend_pgf.py::test_pdflatex[pdf] - matplotlib.testing.exceptions.Imag...\r\nFAILED lib/matplotlib/tests/test_backend_pgf.py::test_rcupdate - matplotlib.testing.exceptions.ImageComp...\r\nFAILED lib/matplotlib/tests/test_usetex.py::test_usetex[png] - matplotlib.testing.exceptions.ImageCompar...\r\n=================== 3 failed, 7517 passed, 60 skipped, 11 xfailed in 630.55s (0:10:30) ====================\r\n```\r\n\r\nAny hints for solving this problems?\r\n\r\nRegards","author":{"url":"https://github.com/hongyi-zhao","@type":"Person","name":"hongyi-zhao"},"datePublished":"2020-05-03T00:46:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":15},"url":"https://github.com/17310/matplotlib/issues/17310"}