Add durations to unittest in 3.12 (#10636)

stdlib/unittest/runner.pyi

@@ -1,6 +1,8 @@
+import sys
 import unittest.case
 import unittest.result
 import unittest.suite
+from _typeshed import Incomplete
 from collections.abc import Callable, Iterable
 from typing import TextIO
 from typing_extensions import TypeAlias
@@ -14,23 +16,57 @@ class TextTestResult(unittest.result.TestResult):
     separator2: str
     showAll: bool  # undocumented
     stream: TextIO  # undocumented
-    def __init__(self, stream: TextIO, descriptions: bool, verbosity: int) -> None: ...
+    if sys.version_info >= (3, 12):
+        durations: unittest.result._DurationsType | None
+        def __init__(
+            self, stream: TextIO, descriptions: bool, verbosity: int, *, durations: unittest.result._DurationsType | None = None
+        ) -> None: ...
+    else:
+        def __init__(self, stream: TextIO, descriptions: bool, verbosity: int) -> None: ...
+
     def getDescription(self, test: unittest.case.TestCase) -> str: ...
     def printErrorList(self, flavour: str, errors: Iterable[tuple[unittest.case.TestCase, str]]) -> None: ...
 
 class TextTestRunner:
     resultclass: _ResultClassType
-    def __init__(
-        self,
-        stream: TextIO | None = None,
-        descriptions: bool = True,
-        verbosity: int = 1,
-        failfast: bool = False,
-        buffer: bool = False,
-        resultclass: _ResultClassType | None = None,
-        warnings: type[Warning] | None = None,
-        *,
-        tb_locals: bool = False,
-    ) -> None: ...
+    # TODO: add `_WritelnDecorator` type
+    # stream: _WritelnDecorator
+    stream: Incomplete
+    descriptions: bool
+    verbosity: int
+    failfast: bool
+    buffer: bool
+    warnings: str | None
+    tb_locals: bool
+
+    if sys.version_info >= (3, 12):
+        durations: unittest.result._DurationsType | None
+        def __init__(
+            self,
+            stream: TextIO | None = None,
+            descriptions: bool = True,
+            verbosity: int = 1,
+            failfast: bool = False,
+            buffer: bool = False,
+            resultclass: _ResultClassType | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+            durations: unittest.result._DurationsType | None = None,
+        ) -> None: ...
+    else:
+        def __init__(
+            self,
+            stream: TextIO | None = None,
+            descriptions: bool = True,
+            verbosity: int = 1,
+            failfast: bool = False,
+            buffer: bool = False,
+            resultclass: _ResultClassType | None = None,
+            warnings: str | None = None,
+            *,
+            tb_locals: bool = False,
+        ) -> None: ...
+
     def _makeResult(self) -> unittest.result.TestResult: ...
     def run(self, test: unittest.suite.TestSuite | unittest.case.TestCase) -> unittest.result.TestResult: ...