From fcffd707c6f8d959d7dc7c6e7a91fa2f59fd0308 Mon Sep 17 00:00:00 2001
From: Patrick Kingston <66141901+pkingstonxyz@users.noreply.github.com>
Date: Thu, 26 Jun 2025 20:14:20 -0400
Subject: [PATCH] Test multiple inheritance in _utils get_all_subclasses
 (#85396)

Should bring code coverage in _utils.py to 100%.
Ensures get_all_subclasses won't enter infinite recursion.
---
 test/units/module_utils/common/test_utils.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/units/module_utils/common/test_utils.py b/test/units/module_utils/common/test_utils.py
index 9fe56c924b4..9657f5d6fdb 100644
--- a/test/units/module_utils/common/test_utils.py
+++ b/test/units/module_utils/common/test_utils.py
@@ -33,6 +33,18 @@ class TestGetAllSubclasses:
     class BranchIIB(BranchII):
         pass
 
+    class MultipleInheritanceBase:
+        pass
+
+    class MultipleInheritanceBranchI(MultipleInheritanceBase):
+        pass
+
+    class MultipleInheritanceBranchII(MultipleInheritanceBase):
+        pass
+
+    class MultipleInheritanceChild(MultipleInheritanceBranchI, MultipleInheritanceBranchII):
+        pass
+
     def test_bottom_level(self):
         assert get_all_subclasses(self.BranchIIB) == set()
 
@@ -43,3 +55,8 @@ class TestGetAllSubclasses:
         assert set(get_all_subclasses(self.Base)) == set([self.BranchI, self.BranchII,
                                                           self.BranchIA, self.BranchIB,
                                                           self.BranchIIA, self.BranchIIB])
+
+    def test_multiple_inheritance(self) -> None:
+        assert get_all_subclasses(self.MultipleInheritanceBase) == {self.MultipleInheritanceBranchI,
+                                                                    self.MultipleInheritanceBranchII,
+                                                                    self.MultipleInheritanceChild}