Fix typeshed regression in unittest (#13092)

Fixes #13090

Co-authored-by: Ivan Levkivskyi <[email protected]>

Author: ilevkivskyi

mypy/typeshed/stdlib/_typeshed/__init__.pyi

@@ -78,6 +78,9 @@ class SupportsRAdd(Protocol[_T_contra, _T_co]):
 class SupportsSub(Protocol[_T_contra, _T_co]):
     def __sub__(self, __x: _T_contra) -> _T_co: ...
 
+class SupportsRSub(Protocol[_T_contra, _T_co]):
+    def __rsub__(self, __x: _T_contra) -> _T_co: ...
+
 class SupportsDivMod(Protocol[_T_contra, _T_co]):
     def __divmod__(self, __other: _T_contra) -> _T_co: ...
 

mypy/typeshed/stdlib/unittest/case.pyi

@@ -1,7 +1,7 @@
 import logging
 import sys
 import unittest.result
-from _typeshed import Self, SupportsDunderGE, SupportsSub
+from _typeshed import Self, SupportsDunderGE, SupportsRSub, SupportsSub
 from collections.abc import Callable, Container, Iterable, Mapping, Sequence, Set as AbstractSet
 from contextlib import AbstractContextManager
 from types import TracebackType
@@ -196,6 +196,15 @@ class TestCase:
         delta: None = ...,
     ) -> None: ...
     @overload
+    def assertAlmostEqual(
+        self,
+        first: _T,
+        second: SupportsRSub[_T, SupportsAbs[SupportsRound[object]]],
+        places: int | None = ...,
+        msg: Any = ...,
+        delta: None = ...,
+    ) -> None: ...
+    @overload
     def assertNotAlmostEqual(self, first: _S, second: _S, places: None, msg: Any, delta: _SupportsAbsAndDunderGE) -> None: ...
     @overload
     def assertNotAlmostEqual(
@@ -210,6 +219,15 @@ class TestCase:
         msg: Any = ...,
         delta: None = ...,
     ) -> None: ...
+    @overload
+    def assertNotAlmostEqual(
+        self,
+        first: _T,
+        second: SupportsRSub[_T, SupportsAbs[SupportsRound[object]]],
+        places: int | None = ...,
+        msg: Any = ...,
+        delta: None = ...,
+    ) -> None: ...
     def assertRegex(self, text: AnyStr, expected_regex: AnyStr | Pattern[AnyStr], msg: Any = ...) -> None: ...
     def assertNotRegex(self, text: AnyStr, unexpected_regex: AnyStr | Pattern[AnyStr], msg: Any = ...) -> None: ...
     def assertCountEqual(self, first: Iterable[Any], second: Iterable[Any], msg: Any = ...) -> None: ...