tree 0f1ed1409ba11f46a02536e14ee2969018088d1a
parent 0ef4c8cf7555ee66a3feed6231e4a57c4bbb5147
author Jordan Pittier <jordan.pittier@scality.com> 1472555352 +0200
committer Jordan Pittier <jordan.pittier@scality.com> 1472832217 +0200

Move `call_until_true` to tempest/lib

This `call_until_true()` is handy and could be used in Tempest plugins.
Let's move it to tempest/lib.

Also add some unit tests.

Change-Id: Ie379030baa336239e6027c8f3cdbeb74c561f66b