Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/matplotlib/tests/test_pyplot.py

@@ -0,0 +1,83 @@
+import difflib
+import subprocess
+import sys
+from pathlib import Path
+
+import pytest
+
+import matplotlib as mpl
+from matplotlib import pyplot as plt
+from matplotlib.cbook import MatplotlibDeprecationWarning
+
+
+def test_pyplot_up_to_date(tmpdir):
+    gen_script = Path(mpl.__file__).parents[2] / "tools/boilerplate.py"
+    if not gen_script.exists():
+        pytest.skip("boilerplate.py not found")
+    orig_contents = Path(plt.__file__).read_text()
+    plt_file = tmpdir.join('pyplot.py')
+    plt_file.write_text(orig_contents, 'utf-8')
+
+    subprocess.run([sys.executable, str(gen_script), str(plt_file)],
+                   check=True)
+    new_contents = plt_file.read_text('utf-8')
+
+    if orig_contents != new_contents:
+        diff_msg = '\n'.join(
+            difflib.unified_diff(
+                orig_contents.split('\n'), new_contents.split('\n'),
+                fromfile='found pyplot.py',
+                tofile='expected pyplot.py',
+                n=0, lineterm=''))
+        pytest.fail(
+            "pyplot.py is not up-to-date. Please run "
+            "'python tools/boilerplate.py' to update pyplot.py. "
+            "This needs to be done from an environment where your "
+            "current working copy is installed (e.g. 'pip install -e'd). "
+            "Here is a diff of unexpected differences:\n%s" % diff_msg
+        )
+
+
+def test_copy_docstring_and_deprecators(recwarn):
+    @mpl.cbook._rename_parameter("(version)", "old", "new")
+    @mpl.cbook._make_keyword_only("(version)", "kwo")
+    def func(new, kwo=None):
+        pass
+
+    @plt._copy_docstring_and_deprecators(func)
+    def wrapper_func(new, kwo=None):
+        pass
+
+    wrapper_func(None)
+    wrapper_func(new=None)
+    wrapper_func(None, kwo=None)
+    wrapper_func(new=None, kwo=None)
+    assert not recwarn
+    with pytest.warns(MatplotlibDeprecationWarning):
+        wrapper_func(old=None)
+    with pytest.warns(MatplotlibDeprecationWarning):
+        wrapper_func(None, None)
+
+
+def test_pyplot_box():
+    fig, ax = plt.subplots()
+    plt.box(False)
+    assert not ax.get_frame_on()
+    plt.box(True)
+    assert ax.get_frame_on()
+    plt.box()
+    assert not ax.get_frame_on()
+    plt.box()
+    assert ax.get_frame_on()
+
+
+def test_stackplot_smoke():
+    # Small smoke test for stackplot (see #12405)
+    plt.stackplot([1, 2, 3], [1, 2, 3])
+
+
+def test_nrows_error():
+    with pytest.raises(TypeError):
+        plt.subplot(nrows=1)
+    with pytest.raises(TypeError):
+        plt.subplot(ncols=1)