X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/991d037e7b4741450dff745d22b0758170fe4ed9..9997ada67ce36d2fbe831bce473aa61250727aff:/sdk/python/tests/arvados_testutil.py

diff --git a/sdk/python/tests/arvados_testutil.py b/sdk/python/tests/arvados_testutil.py
index 23f00b6415..21b3f15dc6 100644
--- a/sdk/python/tests/arvados_testutil.py
+++ b/sdk/python/tests/arvados_testutil.py
@@ -1,4 +1,6 @@
-#!/usr/bin/env python
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
 
 from future import standard_library
 standard_library.install_aliases()
@@ -22,9 +24,10 @@ import tempfile
 import unittest
 
 if sys.version_info >= (3, 0):
-    from io import StringIO
+    from io import StringIO, BytesIO
 else:
     from cStringIO import StringIO
+    BytesIO = StringIO
 
 # Use this hostname when you want to make sure the traffic will be
 # instantly refused.  100::/64 is a dedicated black hole.
@@ -90,7 +93,7 @@ class VersionChecker(object):
             # Python 2 writes version info on stderr.
             self.assertEqual(out.getvalue(), '')
             v = err.getvalue()
-        self.assertRegexpMatches(v, "[0-9]+\.[0-9]+\.[0-9]+$\n")
+        self.assertRegex(v, r"[0-9]+\.[0-9]+\.[0-9]+$\n")
 
 
 class FakeCurl(object):
@@ -261,3 +264,13 @@ class ArvadosBaseTestCase(unittest.TestCase):
         testfile.write(text)
         testfile.flush()
         return testfile
+
+if sys.version_info < (3, 0):
+    # There is no assert[Not]Regex that works in both Python 2 and 3,
+    # so we backport Python 3 style to Python 2.
+    def assertRegex(self, *args, **kwargs):
+        return self.assertRegexpMatches(*args, **kwargs)
+    def assertNotRegex(self, *args, **kwargs):
+        return self.assertNotRegexpMatches(*args, **kwargs)
+    unittest.TestCase.assertRegex = assertRegex
+    unittest.TestCase.assertNotRegex = assertNotRegex