Further tweaks from code review

pyproject.toml

@@ -10,7 +10,7 @@ build-backend = "setuptools.build_meta"
 write_to = "src/_pytest/_version.py"
 
 [tool.pytest.ini_options]
-#minversion = "2.0"
+minversion = "2.0"
 addopts = "-rfEX -p pytester --strict-markers"
 python_files = ["test_*.py", "*_test.py", "testing/python/*.py"]
 python_classes = ["Test", "Acceptance"]

src/_pytest/recwarn.py

@@ -206,20 +206,17 @@ def __len__(self) -> int:
         return len(self._list)
 
     def pop(self, cls: Type[Warning] = Warning) -> "warnings.WarningMessage":
-        """Pop the first recorded warning which is an instance of ``cls``.
-
-        But not an instance of a child class of any other match.
+        """Pop the first recorded warning which is an instance of ``cls``,
+        but not an instance of a child class of any other match.
         Raises ``AssertionError`` if there is no match.
-
         """
-
-        best_idx = None
+        best_idx: Optional[int] = None
         for i, w in enumerate(self._list):
             if w.category == cls:
                 return self._list.pop(i)  # exact match, stop looking
             if issubclass(w.category, cls) and (
                 best_idx is None
-                or not issubclass(w.category, self._list[best_idx].category)  # type: ignore[unreachable]
+                or not issubclass(w.category, self._list[best_idx].category)
             ):
                 best_idx = i
         if best_idx is not None:

testing/test_recwarn.py

@@ -54,7 +54,7 @@ def raise_warnings_from_list(_warnings: List[Type[Warning]]):
         for warn in _warnings:
             warnings.warn(f"Warning {warn().__repr__()}", warn)
 
-    def test_pop(self):
+    def test_pop_finds_exact_match(self):
         with pytest.warns((self.ParentWarning, self.ChildWarning)) as record:
             self.raise_warnings_from_list(
                 [self.ChildWarning, self.ParentWarning, self.ChildOfChildWarning]
@@ -64,13 +64,13 @@ def test_pop(self):
         _warn = record.pop(self.ParentWarning)
         assert _warn.category is self.ParentWarning
 
-    def test_pop_raises(self):
+    def test_pop_raises_if_no_match(self):
         with pytest.raises(AssertionError):
             with pytest.warns(self.ParentWarning) as record:
                 self.raise_warnings_from_list([self.ParentWarning])
             record.pop(self.ChildOfChildWarning)
 
-    def test_pop_most_recent(self):
+    def test_pop_finds_best_inexact_match(self):
         with pytest.warns(self.ParentWarning) as record:
             self.raise_warnings_from_list(
                 [self.ChildOfChildWarning, self.ChildWarning, self.ChildOfChildWarning]