bpo-39200: Correct the error message for min/max builtin function (GH-17814)

Correct the error message when calling the min() or max() with
no arguments.

1 files changed, 12 insertions, 2 deletions

diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
index 6a88454..5c553a9 100644
--- a/Lib/test/test_builtin.py
+++ b/Lib/test/test_builtin.py
@@ -949,7 +949,12 @@ class BuiltinTest(unittest.TestCase):
         self.assertEqual(max(1, 2.0, 3), 3)
         self.assertEqual(max(1.0, 2, 3), 3)
 
-        self.assertRaises(TypeError, max)
+        with self.assertRaisesRegex(
+            TypeError,
+            'max expected at least 1 argument, got 0'
+        ):
+            max()
+
         self.assertRaises(TypeError, max, 42)
         self.assertRaises(ValueError, max, ())
         class BadSeq:
@@ -1003,7 +1008,12 @@ class BuiltinTest(unittest.TestCase):
         self.assertEqual(min(1, 2.0, 3), 1)
         self.assertEqual(min(1.0, 2, 3), 1.0)
 
-        self.assertRaises(TypeError, min)
+        with self.assertRaisesRegex(
+            TypeError,
+            'min expected at least 1 argument, got 0'
+        ):
+            min()
+
         self.assertRaises(TypeError, min, 42)
         self.assertRaises(ValueError, min, ())
         class BadSeq: