如何从Test :: Script运行获取标准输出？

Question

I want to test of Perl script, say testme.pl, with the Test::Script module and get the stdout of the executed script. I get an undef so far.

Here is what I tried (test file test.t ):

use Test::More tests => 2;
use Test::Script;       
use Data::Dumper;
script_compiles('testme.pl');
my $out;
script_runs(['testme.pl'], {"stdout"=>$out}, 'run_script');
print "Out is " . Dumper($out);

And the script to be tested ( testme.pl )

print "catchme if you can\n";

boris@midkemia artif_get_file $ perl perl_test.pl 
1..2
ok 1 - Script testme.pl compiles
ok 2 - run_script
Out is $VAR1 = undef;

I also tried using an array ref \\@out instead of $out, still no luck. Any idea? Thanks!

Answer 1

You've almost got it. You need to give the stdout option a reference . Otherwise you're just passing in undef and it will ignore the option.

script_runs(['testme.pl'], {"stdout"=>\$out}, 'run_script');