Mark tests as skipped when a SQLite version is not supported
diff --git a/Lib/sqlite3/test/dbapi.py b/Lib/sqlite3/test/dbapi.py
index d9c3228..ec42eb7 100644
--- a/Lib/sqlite3/test/dbapi.py
+++ b/Lib/sqlite3/test/dbapi.py
@@ -177,9 +177,9 @@
             with self.assertRaises(sqlite.OperationalError):
                 cx.execute('insert into test(id) values(1)')
 
+    @unittest.skipIf(sqlite.sqlite_version_info >= (3, 3, 1),
+                     'needs sqlite versions older than 3.3.1')
     def CheckSameThreadErrorOnOldVersion(self):
-        if sqlite.sqlite_version_info >= (3, 3, 1):
-            self.skipTest('test needs sqlite3 versions older than 3.3.1')
         with self.assertRaises(sqlite.NotSupportedError) as cm:
             sqlite.connect(':memory:', check_same_thread=False)
         self.assertEqual(str(cm.exception), 'shared connections not available')