Julian Edwards f57cbccf8b Prevent tests' unmocked access to utils.execute() ...

This change introduces a new base test class that mocks out
utils.execute and forces an exception if it gets called.
This has rooted out many tests that were doing this as a side effect of
calling other functions, doing things like modprobe and running iscsi
on the host's actual machine.

The tests are all now appropriately patched in places where this was
happening, and the new base class permanently prevents this from
accidentally happening again.

If you really want to call utils.execute() then you need to re-mock it
in your unit test.

Change-Id: Idf87d09a9c01a6bfe2767f8becabe65c02983518

2017-05-15 10:48:43 +10:00

12 KiB

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