Instead of doing two separate test runs, use the group_regex option to
stestr to group tests that cannot be run in parallel into the same
worker.
Change-Id: I3d69d5c72d69484f4e1c9c0b11122d0cf3703d60
Related-Bug: #1768077
The current scrubber functional tests seem to be confusing the subunit parser.
This patch modifies the functional test definition in tox.ini to run serial
tests separately from the "regular" functional tests and moves the current
scrubber tests to the 'serial' directory
Change-Id: I041c90aa8854bca30f9ea7b0c9d81e41f79cb81e
Partial-bug: #1768077