diff --git a/tests/validators/tests.py b/tests/validators/tests.py
index 5376517a4a..9e1187dc89 100644
--- a/tests/validators/tests.py
+++ b/tests/validators/tests.py
@@ -323,6 +323,9 @@ TEST_DATA = [
     # Max length of domain name labels is 63 characters per RFC 1034.
     (validate_email, "a@%s.us" % ("a" * 63), None),
     (validate_email, "a@%s.us" % ("a" * 64), ValidationError),
+    # validation error if max length of email exceeds 254 chracters.
+    (validate_email, "%s@example.com" % ("a" * 50), None), 
+    (validate_email, "%s@example.com" % ("a" * 250), ValidationError),
     # Trailing newlines in username or domain not allowed
     (validate_email, "a@b.com\n", ValidationError),
     (validate_email, "a\n@b.com", ValidationError),