Haven't diagnosed yet. No similarly failing tests in Rails to work from. cc @tenderlove, @eileencodes Revert "there is always an integration session, so remove the check" Revert "lazily create the integration session" Revert "use before_setup to set up test instance variables" This reverts commits 4cf3b8a, 303567e, and fa63448.
…y on it exclusively
Continuation of c9a4312
Sets the connection collation to the database collation configured in database.yml. Otherwise, `SET NAMES utf8mb4` will use the default collation for that charset (utf8mb4_general_ci) when you may have chosen a different collation, like utf8mb4_unicode_ci. This only applies to literal string comparisons, not column values, so it is unlikely to affect you.