1 files changed, 13 insertions, 4 deletions
diff --git a/Lib/test/test_format.py b/Lib/test/test_format.py
index 015d68e..fc71e48 100644
--- a/Lib/test/test_format.py
+++ b/Lib/test/test_format.py
@@ -332,20 +332,29 @@ class FormatTest(unittest.TestCase):
         self.assertIs(text % (), text)
         self.assertIs(text.format(), text)
 
-    @support.cpython_only
     def test_precision(self):
-        from _testcapi import INT_MAX
-
         f = 1.2
         self.assertEqual(format(f, ".0f"), "1")
         self.assertEqual(format(f, ".3f"), "1.200")
         with self.assertRaises(ValueError) as cm:
-            format(f, ".%sf" % (INT_MAX + 1))
+            format(f, ".%sf" % (sys.maxsize + 1))
 
         c = complex(f)
         self.assertEqual(format(c, ".0f"), "1+0j")
         self.assertEqual(format(c, ".3f"), "1.200+0.000j")
         with self.assertRaises(ValueError) as cm:
+            format(c, ".%sf" % (sys.maxsize + 1))
+
+    @support.cpython_only
+    def test_precision_c_limits(self):
+        from _testcapi import INT_MAX
+
+        f = 1.2
+        with self.assertRaises(ValueError) as cm:
+            format(f, ".%sf" % (INT_MAX + 1))
+
+        c = complex(f)
+        with self.assertRaises(ValueError) as cm:
             format(c, ".%sf" % (INT_MAX + 1))