From da8c38f55dadb35783f451c4c364f7b7b2bec88e Mon Sep 17 00:00:00 2001
From: Henrik Levkowetz <henrik@levkowetz.com>
Date: Sun, 27 Oct 2013 10:03:43 +0000
Subject: [PATCH] Tweaked the display of testurl.list diff failures against
 known-good masters.  - Legacy-Id: 6494

---
 ietf/utils/test_utils.py | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/ietf/utils/test_utils.py b/ietf/utils/test_utils.py
index 057f987ae..6fbe6dbfa 100644
--- a/ietf/utils/test_utils.py
+++ b/ietf/utils/test_utils.py
@@ -231,10 +231,15 @@ class SimpleUrlTestCase(django.test.TestCase,RealDatabaseTest):
 
         list0 = refhtml.split("\n")
         list1 = testhtml.split("\n")
-        diff = "\n".join(unified_diff(list0, list1, master or refurl, url, "", "", 0, lineterm=""))
-        if diff:
-            print "    Differences found:"
-            print diff
+        diff_list = list(unified_diff(list0, list1, master or refurl, url, "", "", 0, lineterm=""))
+        if len(diff_list):
+            if len(diff_list) > 10:
+                print "The diff is too long to show in its entirety.  Here are the first 10 lines:\n"
+                print "\n".join(diff_list[:16])
+                print "..."
+            else:
+                print "    Differences found:"
+                print "\n".join(unified_diff(list0, list1, master or refurl, url, "", "", 0, lineterm=""))
             return False
 
 def canonicalize_feed(s):