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Posted by Siva on August 17, 2004, 12:10 pm
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Can anybody please help me in understanding Devel::Cover module in
Perl? Your help is greatly appreciated. I am trying to use the module
Devel::Cover and I can't understand the coverage report.
This is my environment
Solaris 2.8, Perl 5.8.5 and Devel::Cover v0.47
I am executing a test program which tests the following modules
AAAAA.pm
BBBBB.pm
CCCCC.pm
DDDDD.pm
EEEEE.pm
FFFFFF.pm
I am having a test program called validate which executes the test
programs v_code_AAAAA.t, v_code_BBBBB.t, v_code_CCCCC.t,
v_code_DDDDD.t and v_code_EEEEE.t and v_code_FFFFF.t. Each of these
programs includes the required, respective modules.
In the validate program I have a similar code
*****************************************
#! /opt/ABCDEF/perl/bin/perl -w -I/opt/ABCDEF/bin/lib
use strict;
use Test::Harness qw(&runtests $verbose);
my @tests;
@tests = sort glob "v_code_*.t";
$Test::Harness::verbose = 1;
Test::Harness::runtests (@tests);
exit 0;
***************************************
But when I run the coverage report this code using the following
commands
Perl -Mdevel::Cover validate
Cover -report html
1. I don't see the CCCCC module and the FFFFF module in the coverage
report.
2. Also for the module that shows up (AAAAA, BBBBB, DDDDD and EEEEE)
in the coverage report when I look into the subroutine coverage I
don't see all the subroutine that are being tested show up in the
coverage report.
But when I run the individual test programs separately I am able to
see that the subroutine where covered as covered in the test program.
Thanks
-Siva
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Posted by Jim Keenan on August 17, 2004, 4:30 pm
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csivak24@yahoo.co.uk (Siva) wrote in message
> Can anybody please help me in understanding Devel::Cover module in
> Perl? Your help is greatly appreciated. I am trying to use the module
> Devel::Cover and I can't understand the coverage report.
>
Easy on that "Post message" button, Siva. You posted the same message
4 times.
I'm not going to answer your question directly, but, as a fellow new
user of Devel::Cover, I will share my own experience. I've been using
it to improve the test coverage of my CPAN module List::Compare. This
distribution is set up in a very CPAN-standard format, i.e., all the
tests are named *.t, are held in the /t subdirectory and are listed in
the MANIFEST. Once I've saved my edits, I change to the directory
where Makefile.PL is located and proceed as follows (as per
Devel::Cover documentation):
perl Makefile.PL
make
cover - delete # this deletes any previous Devel::Cover
# database in the same directory tree
HARNESS_PERL_SWITCHES=-MDevel::Cover make test
cover
The last command generates the HTML version of the coverage reports.
I also like to get this in a plain-text file, for which I call
cover cover_db -report=text > [arbitrarily_named_file.txt]
If you've got your module and tests set up in the standard format,
then this should work for you. HTH.
jimk
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