X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e09af1d4876cb1295785db9abb5f3d2d10323097..fe45b1b66c730f2546d78a7899375707c0816518:/sdk/python/tests/arvados_testutil.py

diff --git a/sdk/python/tests/arvados_testutil.py b/sdk/python/tests/arvados_testutil.py
index 71c9b178e7..dae3dd3b7b 100644
--- a/sdk/python/tests/arvados_testutil.py
+++ b/sdk/python/tests/arvados_testutil.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import arvados
+import contextlib
 import errno
 import hashlib
 import httplib
@@ -11,6 +12,7 @@ import os
 import pycurl
 import Queue
 import shutil
+import sys
 import tempfile
 import unittest
 
@@ -50,6 +52,17 @@ def mock_api_responses(api_client, body, codes, headers={}):
 def str_keep_locator(s):
     return '{}+{}'.format(hashlib.md5(s).hexdigest(), len(s))
 
+@contextlib.contextmanager
+def redirected_streams(stdout=None, stderr=None):
+    orig_stdout, sys.stdout = sys.stdout, stdout or sys.stdout
+    orig_stderr, sys.stderr = sys.stderr, stderr or sys.stderr
+    try:
+        yield
+    finally:
+        sys.stdout = orig_stdout
+        sys.stderr = orig_stderr
+
+
 class FakeCurl:
     @classmethod
     def make(cls, code, body='', headers={}):