* Move check from generated helper to test_help.rb, so that all
applications can benefit
* Rather than just raising when the test schema has pending migrations,
try to load in the schema and only raise if there are pending
migrations afterwards
* Opt out of the check by setting
config.active_record.maintain_test_schema = false
* Deprecate db:test:* tasks. The test helper is now fully responsible
for maintaining the test schema, so we don't need rake tasks for this.
This is also a speed improvement since we're no longer reloading the
test database on every call to "rake test".
We used to support the `BACKTRACE` environment variable but when
we switched to MiniTest it got removed: f9382cd794
This commit adds back the functionality to show the unfiltered backtrace when needed.
This also works when you run your tests with `rake`:
* `BACKTRACE=1 bin/rake test`
* `BACKTRACE=1 ruby -Itest ...`
This removes all deprecated classes in ActionController related to
Routing, Abstract Request/Response and Integration/IntegrationTest.
All tests and docs were changed to ActionDispatch instead of ActionController.
