From 769c2056f2ae02154d6c3eaf377f7215381491c9 Mon Sep 17 00:00:00 2001
From: Thomas Smith <thom@thomthesmith.com>
Date: Sat, 19 Jan 2019 17:29:17 -0500
Subject: [PATCH] Improved error text of regexp assertions.

---
 tests/test_3141596.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/test_3141596.py b/tests/test_3141596.py
index 3ab366a6..1cea92e8 100644
--- a/tests/test_3141596.py
+++ b/tests/test_3141596.py
@@ -97,8 +97,10 @@ def real_wrapper(self):
 class UnitTestingTestCase(DeferrableTestCase):
 
     def assertRegexContains(self, txt, expr, msg=None):
-        m = re.search(expr, txt, re.MULTILINE)
-        self.assertIsNotNone(m, msg)
+        if re.search(expr, txt, re.MULTILINE) is None:
+            self.fail("String {!r} does not contain regexp {!r}.".format(
+                txt, expr
+            ))
 
     def assertOk(self, txt, msg=None):
         self.assertRegexContains(txt, r'^OK', msg)