Make the main py3 tox environment an alias/merge of other test environments
Having tox call tox is a bit weird, but the alternatives are:
- duplication of the test command, which is a bit sad
- replacing all the positive factors with conjunction of negative factors, e.g.
core
->!db-!server
, which makes the logic painful to follow
One day, tox will have environment aliases which will make this horror moot :-)
(Idea pulled from a comment in https://github.com/tox-dev/tox/issues/427)
Depends on !109 (closed)
Test Plan
tox -e py3 runs the same command as before
Migrated from D2331 (view on Phabricator)