Currently assertTrue and assertFalse are used to check
wheter a mock method is called. It is not checked whether
mock method is called with correct set of arguments.
With this patch following modules uses assert_called_* and
assert_not_called instead of assertTrue and assertFalse.
- magnumclient/tests/v1/test_bays_shell.py
- magnumclient/tests/v1/test_clusters_shell.py
Change-Id: I8b848d068bd08512d8c1fc716bb1b6e6d892137c
Partially-Implements: blueprint magnumclient-ut-coverage
cb12dc0232