some new features

.venv/lib/python3.12/site-packages/matplotlib/tests/test_matplotlib.py

@@ -0,0 +1,82 @@
+import os
+import subprocess
+import sys
+
+import pytest
+
+import matplotlib
+from matplotlib.testing import subprocess_run_for_testing
+
+
+@pytest.mark.parametrize('version_str, version_tuple', [
+    ('3.5.0', (3, 5, 0, 'final', 0)),
+    ('3.5.0rc2', (3, 5, 0, 'candidate', 2)),
+    ('3.5.0.dev820+g6768ef8c4c', (3, 5, 0, 'alpha', 820)),
+    ('3.5.0.post820+g6768ef8c4c', (3, 5, 1, 'alpha', 820)),
+])
+def test_parse_to_version_info(version_str, version_tuple):
+    assert matplotlib._parse_to_version_info(version_str) == version_tuple
+
+
+@pytest.mark.skipif(sys.platform == "win32",
+                    reason="chmod() doesn't work as is on Windows")
+@pytest.mark.skipif(sys.platform != "win32" and os.geteuid() == 0,
+                    reason="chmod() doesn't work as root")
+def test_tmpconfigdir_warning(tmp_path):
+    """Test that a warning is emitted if a temporary configdir must be used."""
+    mode = os.stat(tmp_path).st_mode
+    try:
+        os.chmod(tmp_path, 0)
+        proc = subprocess_run_for_testing(
+            [sys.executable, "-c", "import matplotlib"],
+            env={**os.environ, "MPLCONFIGDIR": str(tmp_path)},
+            stderr=subprocess.PIPE, text=True, check=True)
+        assert "set the MPLCONFIGDIR" in proc.stderr
+    finally:
+        os.chmod(tmp_path, mode)
+
+
+def test_importable_with_no_home(tmp_path):
+    subprocess_run_for_testing(
+        [sys.executable, "-c",
+         "import pathlib; pathlib.Path.home = lambda *args: 1/0; "
+         "import matplotlib.pyplot"],
+        env={**os.environ, "MPLCONFIGDIR": str(tmp_path)}, check=True)
+
+
+def test_use_doc_standard_backends():
+    """
+    Test that the standard backends mentioned in the docstring of
+    matplotlib.use() are the same as in matplotlib.rcsetup.
+    """
+    def parse(key):
+        backends = []
+        for line in matplotlib.use.__doc__.split(key)[1].split('\n'):
+            if not line.strip():
+                break
+            backends += [e.strip().lower() for e in line.split(',') if e]
+        return backends
+
+    from matplotlib.backends import BackendFilter, backend_registry
+
+    assert (set(parse('- interactive backends:\n')) ==
+            set(backend_registry.list_builtin(BackendFilter.INTERACTIVE)))
+    assert (set(parse('- non-interactive backends:\n')) ==
+            set(backend_registry.list_builtin(BackendFilter.NON_INTERACTIVE)))
+
+
+def test_importable_with__OO():
+    """
+    When using -OO or export PYTHONOPTIMIZE=2, docstrings are discarded,
+    this simple test may prevent something like issue #17970.
+    """
+    program = (
+        "import matplotlib as mpl; "
+        "import matplotlib.pyplot as plt; "
+        "import matplotlib.cbook as cbook; "
+        "import matplotlib.patches as mpatches"
+    )
+    subprocess_run_for_testing(
+        [sys.executable, "-OO", "-c", program],
+        env={**os.environ, "MPLBACKEND": ""}, check=True
+        )