Redirect output of Test::More/Simple

[spurperl]

Fellow Monks,

I want to redirect the output of my Test::More printouts to a text file instead of STDOUT / STDERR. I many "is/ok/like" calls in the code running in loops and the output is often thousands of tests long.

Running "test.pl > file.txt" on Windows fails (an error from inside Test::Builder). How can this be done ?

thanks in advance

[GrandFather]

Add:

    Test::More->builder->output ('result.txt');

to have Test::More put it's output in a file called 'result.txt' and:

    Test::More->builder->failure_output ('errors.txt');

to redirect error output to 'errors.txt'. See the Test::More section 'Extending and Embedding Test::More' and Test::Builder for more information.

[spurperl]

Thanks.

It seems to me that it's a bit too hidden for such a needed feature. I'm not a Perl newbie and even have experience with Test::More and I found it difficult to locate in the docs.

Besides the most trivial cases, lots of tests usually run autonomously, and generate copious amounts of output which is best contained in a log file.

I guess another solution in such cases is Test::Harness, which IIRC allows redirection of output from test scripts it runs.

[lyklev]

Redirecting output on win32 from a script called by just its name is broken, see the release notes.

Two fixes are possible:

1. perl test1.pl > file.txt
2. use pl2bat, shipped with activestate perl. This will wrap your perl-script in a .bat-file, from which redirecting will work;

   pl2bat test1.pl
   test1.bat > file.txt
   

[blazar]

Redirecting output on win32 from a script called by just its name is broken, see the release notes.

C:\temp>cat foo.pl
#!/usr/bin/perl -l

use strict;
use warnings;

print 'Foo';

__END__

C:\temp>foo
Foo

C:\temp>foo >foo.txt

C:\temp>cat foo.txt
Foo

use pl2bat, shipped with activestate perl. This will wrap your perl-script in a .bat-file, from which redirecting will work;

OTOH I'm new on cmd.exe, I've been on command.com (when using Windows) till just about one month ago, and there I had to use pl2bat, with which for some reason redirecting did not work. Which was a major pita and caused me to implement -i, -o switches for some of my commonly used scripts.

[mrpeabody]

(an error from inside Test::Builder)

What error, exactly?

Redirecting output from Test::More works fine under Cygwin Perl with bash or cmd.exe. Perhaps the problem is with Activestate Perl.

[larsen]

I don't know what you're aiming at redirecting Test::More printouts, but maybe you could be interested in Test::TAP::Model.

[petdance]

Without knowing the error you got, we can't do much to help. However, running "perl foo.t > output.txt" should always work.

[spurperl]

This code:

use warnings;
use strict;
$|++;
use Test::More qw/no_plan/;


ok(1);

When run as "z.pl > h.txt" in the command prompt (cmd), triggers the following error (tried on two different machines with different versions of Windows and ActivePerl):

Can't dup STDOUT:  Permission denied at D:/Perl/lib/Test/Builder.pm li
+ne 1322.
Compilation failed in require at D:/Perl/lib/Test/Builder/Module.pm li
+ne 3.
BEGIN failed--compilation aborted at D:/Perl/lib/Test/Builder/Module.p
+m line 3.
Compilation failed in require at D:/Perl/lib/Test/More.pm line 22.
BEGIN failed--compilation aborted at D:/Perl/lib/Test/More.pm line 22.
Compilation failed in require at C:\eli\perl_stuff\z.pl line 4.
BEGIN failed--compilation aborted at C:\eli\perl_stuff\z.pl line 4.

However, running "perl z.pl > h.txt" works fine.