One way is to redirect stdout to a file. For this purpose it helps if the file is actually a Perl variable. Consider:
package Test_Package;
use strict;
sub testing {
print "okay.";
};
1;
use strict;
use Test::More tests => 1;
my $log;
open my $logFile, '>', \$log;
my $oldStdOut = select $logFile;
Test_Package->testing();
select $oldStdOut;
close $logFile;
is($log, 'okay', 'Testing okay');
Prints:
1..1
not ok 1 - Testing okay
# Failed test 'Testing okay'
# at ...\noname.pl line 25.
# got: 'okay.'
# expected: 'okay'
# Looks like you failed 1 test of 1.
The error is deliberate btw.
True laziness is hard work
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