diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py
index 6b64f10..aefc433 100644
--- a/Lib/test/test_copy.py
+++ b/Lib/test/test_copy.py
@@ -165,6 +165,9 @@
                 return cmp(self.foo, other.foo)
         x = C(42)
         self.assertEqual(copy.copy(x), x)
+        # State with boolean value is false (issue #25718)
+        x = C(0.0)
+        self.assertEqual(copy.copy(x), x)
 
     # The deepcopy() method
 
@@ -395,6 +398,12 @@
         x = C([42])
         y = copy.deepcopy(x)
         self.assertEqual(y, x)
+        self.assertIsNot(y, x)
+        self.assertIsNot(y.foo, x.foo)
+        # State with boolean value is false (issue #25718)
+        x = C([])
+        y = copy.deepcopy(x)
+        self.assertEqual(y, x)
         self.assertTrue(y is not x)
         self.assertTrue(y.foo is not x.foo)