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plotter-app/venv/lib/python3.8/site-packages/matplotlib/tests/test_api.py

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+import re
+
+import numpy as np
+import pytest
+
+from matplotlib import _api
+
+
+@pytest.mark.parametrize('target,test_shape',
+                         [((None, ), (1, 3)),
+                          ((None, 3), (1,)),
+                          ((None, 3), (1, 2)),
+                          ((1, 5), (1, 9)),
+                          ((None, 2, None), (1, 3, 1))
+                          ])
+def test_check_shape(target, test_shape):
+    error_pattern = (f"^'aardvark' must be {len(target)}D.*" +
+                     re.escape(f'has shape {test_shape}'))
+    data = np.zeros(test_shape)
+    with pytest.raises(ValueError, match=error_pattern):
+        _api.check_shape(target, aardvark=data)
+
+
+def test_classproperty_deprecation():
+    class A:
+        @_api.deprecated("0.0.0")
+        @_api.classproperty
+        def f(cls):
+            pass
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        A.f
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        a = A()
+        a.f
+
+
+def test_deprecate_privatize_attribute():
+    class C:
+        def __init__(self): self._attr = 1
+        def _meth(self, arg): return arg
+        attr = _api.deprecate_privatize_attribute("0.0")
+        meth = _api.deprecate_privatize_attribute("0.0")
+
+    c = C()
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        assert c.attr == 1
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        c.attr = 2
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        assert c.attr == 2
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        assert c.meth(42) == 42
+
+
+def test_delete_parameter():
+    @_api.delete_parameter("3.0", "foo")
+    def func1(foo=None):
+        pass
+
+    @_api.delete_parameter("3.0", "foo")
+    def func2(**kwargs):
+        pass
+
+    for func in [func1, func2]:
+        func()  # No warning.
+        with pytest.warns(_api.MatplotlibDeprecationWarning):
+            func(foo="bar")
+
+    def pyplot_wrapper(foo=_api.deprecation._deprecated_parameter):
+        func1(foo)
+
+    pyplot_wrapper()  # No warning.
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        func(foo="bar")
+
+
+def test_make_keyword_only():
+    @_api.make_keyword_only("3.0", "arg")
+    def func(pre, arg, post=None):
+        pass
+
+    func(1, arg=2)  # Check that no warning is emitted.
+
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        func(1, 2)
+    with pytest.warns(_api.MatplotlibDeprecationWarning):
+        func(1, 2, 3)
+
+
+def test_deprecation_alternative():
+    alternative = "`.f1`, `f2`, `f3(x) <.f3>` or `f4(x)<f4>`"
+    @_api.deprecated("1", alternative=alternative)
+    def f():
+        pass
+    assert alternative in f.__doc__
+
+
+def test_empty_check_in_list():
+    with pytest.raises(TypeError, match="No argument to check!"):
+        _api.check_in_list(["a"])