Liam Morland authored Jun 25, 2019 and Liam Morland committed Jun 25, 2019

Issue #2975864 by Liam Morland: Test that candidates are deleted when their post or election is deleted

Create ::helperElectionCreate(), ::helperElectionPostCreate().

Issue #3002864 by Liam Morland: Include all non-aggregated columns in GPOUP BY in _election_check_election_readiness()

Issue #3002864 by Liam Morland: Do checks only after election_id is assigned in _election_check_election_readiness()

Fixes bug introduced in dbc92dcf.

Issue #2961895: Only call election_post_voting_open() when there is a post in election_candidate_access()

Fixes bug introduced in dbc92dcf.