1 files changed, 4 insertions, 2 deletions
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index ce346b9b21..79be3694ab 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -304,10 +304,12 @@ class TestClassesAndFunctions(unittest.TestCase):
         self.assertArgSpecEquals(A.m, ['self'])
 
     def test_getargspec_sublistofone(self):
-        def sublistOfOne((foo)): return 1
-
+        def sublistOfOne((foo,)): return 1
         self.assertArgSpecEquals(sublistOfOne, [['foo']])
 
+        def fakeSublistOfOne((foo)): return 1
+        self.assertArgSpecEquals(fakeSublistOfOne, ['foo'])
+
     def test_classify_oldstyle(self):
         class A:
             def s(): pass