tests: make test_admin_users user_and_repo_group_fail() fixture more stable When adding authentication_token() to log_user(), database session lifetime will in some cases change: test_admin_users test_delete_repo_group_err() use the user_and_repo_group_fail() fixture. Before, it got ObjectDeletedError when trying to delete a deleted RepoGroup and moved on. After changing log_user(), py.test would emit a warning: kallithea/tests/functional/test_admin_users.py::TestAdminUsersController::()::test_delete_repo_group_err .../site-packages/sqlalchemy/orm/persistence.py:1340: SAWarning: DELETE statement on table 'groups' expected to delete 1 row(s); 0 were matched. Please set confirm_deleted_rows=False within the mapper configuration to prevent this warning. % (table.description, expected, rows_matched) Instead, use RepoGroup.get_by_group_name to verify the group exists before trying to delete it.

# requirements.txt file for use as "pip install -r requirements.txt" as a
# readthedocs compatible alternative to "pip install -e ." which is a working
# alternative to "setup.py develop" which doesn't work with Mercurial 3.7
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