Fix #6589: autodoc: Formatting issues with autodoc_typehints='none'

tests/test_ext_autodoc_configs.py

@@ -501,15 +501,15 @@ def test_autodoc_typehints_none(app):
         '.. py:module:: target.typehints',
         '',
         '',
-        '.. py:class:: Math(s, o = None)',
+        '.. py:class:: Math(s, o=None)',
         '   :module: target.typehints',
         '',
         '   ',
-        '   .. py:method:: Math.incr(a, b = 1) -> int',
+        '   .. py:method:: Math.incr(a, b=1)',
         '      :module: target.typehints',
         '   ',
         '',
-        '.. py:function:: incr(a, b = 1) -> int',
+        '.. py:function:: incr(a, b=1)',
         '   :module: target.typehints',
         ''
     ]

tests/test_util_inspect.py

@@ -285,6 +285,10 @@ def test_Signature_annotations():
     sig = inspect.Signature(Node.__init__).format_args()
     assert sig == '(self, parent: Optional[Node]) -> None'
 
+    # show_annotation is False
+    sig = inspect.Signature(f7).format_args(show_annotation=False)
+    assert sig == '(x=None, y={})'
+
 
 def test_safe_getattr_with_default():
     class Foo: