In py310 unittest.mock does not allow to mock the same function twice as
the second mocking will fail to autospec the Mock object created by the
first mocking.
This patch manually fixes the double mocking.
Fixed cases:
1) one of the mock was totally unnecessary so it was removed
2) the second mock specialized the behavior of the first generic mock.
In this case the second mock is replaced with the configuration of
the first mock
3) a test case with two test steps mocked the same function for each
step with overlapping mocks. Here the overlap was removed to have
the two mock exists independently
The get_connection injection in the libvirt functional test needed a
further tweak (yeah I know it has many already) to act like a single
mock (basically case #2) instead of a temporary re-mocking. Still the
globalness of the get_connection mocking warrant the special set / reset
logic there.
Change-Id: I3998d0d49583806ac1c3ae64f1b1fe343cefd20d
f8cf050a13