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Re: Testing redirected croak messages

by xdg (Monsignor)
on Oct 28, 2005 at 09:03 UTC ( #503600=note: print w/replies, xml ) Need Help??

in reply to Testing redirected croak messages

Assuming your module takes over STDERR, and then relies on the behavior of croak (or, really, die) to write to STDERR, I don't think you'll get your tests to work with eval, which supresses the write to STDERR. You may be better off using a signal handler:

local $SIG{__DIE__} = sub { local $|++; # autoflush print STDERR @_; }; unlink 'test.errors'; redirect_error( output_file => 'test.errors' ); # call this directly, not in an eval, as you're trapping the croak lcroak "this is a sample error file"; ok( -T 'test.errors', "lcroak opens the error file specified by redirect_error()." ); my $text = `cat test.errors`; like( $text , qr/this is a sample error file/, "lcroak writes to the error file specified by redirect_error()." ) +; unlink 'test.errors';

Picking a nit -- cat test.errors isn't portable. You may want to use File::Slurp or the equivalent and keep it in Perl.

Also, if you want to do this test by running a separate process, I'd suggest trying IPC::Run3 instead of using a system call. It will nicely redirect STDOUT and STDERR into scalar variables for you:

run3 \@cmd, undef, \$out, \$err;


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