Improve test coverage for share migration

- Added tests to validate the migration functionality
for a replicated share.
- Added tests to validate the extend and shrink
functionality on migrated share.
- Added tests to cover the preserve snapshot
functionality on migrated share.
- Current waiter logic in migration_progress
method of dummy driver causes every migration
test to take over 4 minutes to complete.
Therefore, updated the method to cut the
overall time in half and avoid the possible timeout.

Partially-Implements: bp ocata-migration-improvements
Change-Id: Ia7c7eb7b48b464aa670073e8c0795369bd972678
6 files changed
tree: 0357dfcb39577a2c8cee7776254baf6564cfc998
  1. manila_tempest_tests/