use assert[Not]In where appropriate
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index d82dc5a..3eda2bd 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -118,8 +118,8 @@
 
     def test_opmap(self):
         self.assertEqual(dis.opmap["STOP_CODE"], 0)
-        self.assertEqual(dis.opmap["LOAD_CONST"] in dis.hasconst, True)
-        self.assertEqual(dis.opmap["STORE_NAME"] in dis.hasname, True)
+        self.assertIn(dis.opmap["LOAD_CONST"], dis.hasconst)
+        self.assertIn(dis.opmap["STORE_NAME"], dis.hasname)
 
     def test_opname(self):
         self.assertEqual(dis.opname[dis.opmap["LOAD_FAST"]], "LOAD_FAST")