diff --git a/Lib/test/list_tests.py b/Lib/test/list_tests.py
index 67492f3..e2889cc 100644
--- a/Lib/test/list_tests.py
+++ b/Lib/test/list_tests.py
@@ -540,6 +540,9 @@
         a = self.type2test(range(10))
         a[::2] = tuple(range(5))
         self.assertEqual(a, self.type2test([0, 1, 1, 3, 2, 5, 3, 7, 4, 9]))
+        # test issue7788
+        a = self.type2test(range(10))
+        del a[9::1<<333]
 
     def test_constructor_exception_handling(self):
         # Bug #1242657
diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index 6ec9bb3..8a3796c 100755
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -1011,6 +1011,9 @@
         a = array.array(self.typecode, range(10))
         del a[::1000]
         self.assertEqual(a, array.array(self.typecode, [1,2,3,4,5,6,7,8,9]))
+        # test issue7788
+        a = array.array(self.typecode, range(10))
+        del a[9::1<<333]
 
     def test_assignment(self):
         a = array.array(self.typecode, range(10))
diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
index 73f7c02..0af0685 100644
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -600,7 +600,7 @@
         self.assertEqual(b, bytearray([0, 1, 2, 42, 42, 42, 3, 4, 5, 6, 7, 8, 9]))
 
     def test_extended_set_del_slice(self):
-        indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
+        indices = (0, None, 1, 3, 19, 300, 1<<333, -1, -2, -31, -300)
         for start in indices:
             for stop in indices:
                 # Skip invalid step 0