Issue #18659: Backed out changeset cfd875bcbe41 after buildbot failures.

Lib/test/test_format.py

@@ -327,6 +327,10 @@ class FormatTest(unittest.TestCase):
         self.assertIs(text % (), text)
         self.assertIs(text.format(), text)
 
+
+def test_main():
+    support.run_unittest(FormatTest)
+
     def test_precision(self):
         INT_MAX = 2147483647
 
@@ -338,10 +342,10 @@ class FormatTest(unittest.TestCase):
         self.assertEqual(str(cm.exception), "precision too big")
 
         c = complex(f)
-        self.assertEqual(format(c, ".0f"), "1+0j")
-        self.assertEqual(format(c, ".3f"), "1.200+0.000j")
+        self.assertEqual(format(f, ".0f"), "1")
+        self.assertEqual(format(f, ".3f"), "1.200")
         with self.assertRaises(ValueError) as cm:
-            format(c, ".%sf" % (INT_MAX + 1))
+            format(f, ".%sf" % (INT_MAX + 1))
         self.assertEqual(str(cm.exception), "precision too big")