
When we moved Brocade exceptions from cinder.exception to cinder.zonemanager.drivers.broade.exception we missed one file, brcd_rest_fc_zone_client, so when we use that file (setting `fc_southbound_protocol = REST_HTTP`) if it tries to raise an exception we end up seeing: AttributeError: module 'cinder.exception' has no attribute 'BrocadeZoningRestException' The CI didn't catch it because there are no unit tests for the brcd_rest_fc_zone_client.py file. This patch fixes the issue by changing the import so it gets the exceptions from the Brocade file and it also adds some tests for the first half (211 lines) of the code in the brcd_rest_fc_zone_client.py file. TrivialFix Closes-Bug: #1866860 Change-Id: Idfdb8796d5f4b650aa762e54a189c9ab48f93d1a
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