Update odltools

[netvirt.git] / resources / tools / odltools / odltools / netvirt / tests / capture.py

diff --git a/resources/tools/odltools/odltools/netvirt/tests/capture.py b/resources/tools/odltools/odltools/netvirt/tests/capture.py
new file mode 100644 (file)
index 0000000..ebd4edd
--- /dev/null
+++ b/resources/tools/odltools/odltools/netvirt/tests/capture.py
@@ -0,0 +1,33 @@
+# Copyright 2018 Red Hat, Inc. and others. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys
+# String IO is different python 3.5 than 2.7
+try:
+    from cStringIO import StringIO
+except ImportError:
+    from io import StringIO
+from contextlib import contextmanager
+
+
+@contextmanager
+def capture(command=None, *args, **kwargs):
+    out = sys.stdout
+    sys.stdout = StringIO()
+    try:
+        command(*args, **kwargs)
+        sys.stdout.seek(0)
+        yield sys.stdout.read()
+    finally:
+        sys.stdout = out