Trap exit codes, exceptions, output, etchttp://search.cpan.org/dist/Test-Trap
Primarily (but not exclusively) for use in test scripts: A block eval on
steroids, configurable and extensible, but by default trapping (Perl)
STDOUT, STDERR, warnings, exceptions, would-be exit codes, and return
values from boxed blocks of test code.
The values collected by the latest trap can then be queried or tested
through a special trap object.