1 files changed, 39 insertions, 1 deletions
diff --git a/Lib/unittest/test/testmock/testhelpers.py b/Lib/unittest/test/testmock/testhelpers.py
index 9f1bf26..0d03108 100644
--- a/Lib/unittest/test/testmock/testhelpers.py
+++ b/Lib/unittest/test/testmock/testhelpers.py
@@ -5,7 +5,7 @@ import unittest
 
 from unittest.mock import (
     call, _Call, create_autospec, MagicMock,
-    Mock, ANY, _CallList, patch, PropertyMock
+    Mock, ANY, _CallList, patch, PropertyMock, _callable
 )
 
 from datetime import datetime
@@ -1011,5 +1011,43 @@ class TestCallList(unittest.TestCase):
         self.assertNotIsInstance(returned, PropertyMock)
 
 
+class TestCallablePredicate(unittest.TestCase):
+
+    def test_type(self):
+        for obj in [str, bytes, int, list, tuple, SomeClass]:
+            self.assertTrue(_callable(obj))
+
+    def test_call_magic_method(self):
+        class Callable:
+            def __call__(self):
+                pass
+        instance = Callable()
+        self.assertTrue(_callable(instance))
+
+    def test_staticmethod(self):
+        class WithStaticMethod:
+            @staticmethod
+            def staticfunc():
+                pass
+        self.assertTrue(_callable(WithStaticMethod.staticfunc))
+
+    def test_non_callable_staticmethod(self):
+        class BadStaticMethod:
+            not_callable = staticmethod(None)
+        self.assertFalse(_callable(BadStaticMethod.not_callable))
+
+    def test_classmethod(self):
+        class WithClassMethod:
+            @classmethod
+            def classfunc(cls):
+                pass
+        self.assertTrue(_callable(WithClassMethod.classfunc))
+
+    def test_non_callable_classmethod(self):
+        class BadClassMethod:
+            not_callable = classmethod(None)
+        self.assertFalse(_callable(BadClassMethod.not_callable))
+
+
 if __name__ == '__main__':
     unittest.main()