Removing check_periodicity behavior that might introduce weird use
cases (at least in this implementation). We might want to add a feature
request to get that behavior back, but in a more predictable way.
finished working on periodicity 'always force/always skip'
adding mock as a test dependency
changing 2 tests, making assertion on method call and not on side effects
Merge remote-tracking branch 'origin/tweak-grid2'