Redmine

GroupsController#remove_users tests fail randomly.

The controller action generates the expected `params[:confirm]` value based on the user's locale, while `I18n.t(:general_text_Yes)` in the test code can be affected by locale changes made by other tests.

For example, the following execution may fail:

$ ./bin/rails test test/unit/mailer_test.rb:1083 test/functional/groups_controller_test.rb:288 --seed 38437

Run options: --seed 38437

# Running:

.F

Failure:
GroupsControllerTest#test_remove_users_plural [test/functional/groups_controller_test.rb:288]:
`group.users.count` didn't change by -2, but by 0.
Expected: 0
  Actual: 2

bin/rails test test/functional/groups_controller_test.rb:285

Finished in 1.634871s, 1.2233 runs/s, 3.0583 assertions/s.
2 runs, 5 assertions, 1 failures, 0 errors, 0 skips

This patch fixes the flaky tests by explicitly setting the locale before running the tests.