From f88f1b40ce7f70a3a510259154364a25d7dceff6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Wed, 30 Sep 2015 20:31:29 +0600
Subject: [PATCH] [test/helper] Clarify field for list length mismatch

---
 test/helper.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/helper.py b/test/helper.py
index 0ce9a0fb3..28fd135b2 100644
--- a/test/helper.py
+++ b/test/helper.py
@@ -128,7 +128,8 @@ def expect_value(self, got, expected, field):
     elif isinstance(expected, list) and isinstance(got, list):
         self.assertEqual(
             len(expected), len(got),
-            'Expect a list of length %d, but got a list of length %d' % (len(expected), len(got)))
+            'Expect a list of length %d, but got a list of length %d for field %s' % (
+                len(expected), len(got), field))
         for index, (item_got, item_expected) in enumerate(zip(got, expected)):
             type_got = type(item_got)
             type_expected = type(item_expected)