tree 3a2f99565fb278053389a72c8fb179069efeb8ce
parent 8b304a37df13477f02fca5a6f5eaa3e55d7b4bf1
author Simon Glass <sjg@chromium.org> 1467560441 -0600
committer Tom Rini <trini@konsulko.com> 1468534955 -0400

test/py: Provide a way to check that a command fails

Sometimes we want to run a command and check that it fails. Add a function
to handle this. It can check the return code and also make sure that the
output contains a given error message.

Signed-off-by: Simon Glass <sjg@chromium.org>