From 09dee292ca87424a763bbf0ffeb4bd0e346b76cd Mon Sep 17 00:00:00 2001
From: Bruno Oliveira <nicoddemus@gmail.com>
Date: Sun, 30 Jun 2019 10:34:40 -0300
Subject: [PATCH] Use unicode message if regex is also unicode in
 ExceptionInfo.match

---
 src/_pytest/_code/code.py | 8 ++++++--
 testing/python/raises.py  | 4 +++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/_pytest/_code/code.py b/src/_pytest/_code/code.py
index e621f3ee0..e99575e11 100644
--- a/src/_pytest/_code/code.py
+++ b/src/_pytest/_code/code.py
@@ -572,9 +572,13 @@ class ExceptionInfo(object):
         raised.
         """
         __tracebackhide__ = True
-        value = safe_str(self.value)
+        value = (
+            text_type(self.value) if isinstance(regexp, text_type) else str(self.value)
+        )
         if not re.search(regexp, value):
-            assert 0, "Pattern '{!s}' not found in '{!s}'".format(regexp, value)
+            raise AssertionError(
+                "Pattern '{!s}' not found in '{!s}'".format(regexp, value)
+            )
         return True
 
 
diff --git a/testing/python/raises.py b/testing/python/raises.py
index db34c6624..ba7a04b8c 100644
--- a/testing/python/raises.py
+++ b/testing/python/raises.py
@@ -279,6 +279,8 @@ class TestRaises(object):
                     pass
             assert "via __class__" in excinfo.value.args[0]
 
-    def test_u(self):
+    def test_unicode_message(self):
+        """pytest.raises should be able to match unicode messages when using a unicode regex (#5478)
+        """
         with pytest.raises(AssertionError, match=u"\u2603"):
             assert False, u"\u2603"