- now any non expected log output is considered an error, by setting a
g_log default handler.
- block_lasso_logs()/unblock_lasso_logs() will block logging output at
the DEBUG level
- begin_check_do_log(level, message, endswith)/end_check_do_log() with
check that the only message emitted between the two macros is one
equals to "message" at the level "level", or ending (to work around
variable parts in a log message) with "message" if "endswith" is True.
The first argument must be the iterator, the second is the iterable.
Also add a non-regression test with Googleapps metadata and and a
typical authn request.
Benjamin Dauvergne