devel::cover::db(3) [centos man page]

Devel::Cover::DB(3)					User Contributed Perl Documentation				       Devel::Cover::DB(3)

NAME

       Devel::Cover::DB - Code coverage metrics for Perl

VERSION

       version 1.03

SYNOPSIS

	use Devel::Cover::DB;

	my $db = Devel::Cover::DB->new(db => "my_coverage_db");
	$db->print_summary([$file1, $file2], ["statement", "pod"]);

DESCRIPTION

       This module provides access to a database of code coverage information.

METHODS

   new
	my $db = Devel::Cover::DB->new(db => "my_coverage_db");

       Contructs the DB from the specified database.

   cover
	my $cover = $db->cover;

       Returns a Devel::Cover::DB::Cover object.  From here all the coverage data may be accessed.

	my $cover = $db->cover;
	for my $file ($cover->items)
	{
	    print "$file
";
	    my $f = $cover->file($file);
	    for my $criterion ($f->items)
	    {
		print "  $criterion
";
		my $c = $f->criterion($criterion);
		for my $location ($c->items)
		{
		    my $l = $c->location($location);
		    print "    $location @$l
";
		}
	    }
	}

       Data for different criteria will be in different formats, so that will need special handling.  This is not yet documented so your best bet
       for now is to look at some of the simpler reports and/or the source.

       The methods in the above example are actually aliases for methods in Devel::Cover::DB::Base (the base class for all Devel::Cover::DB::*
       classes):

       o   Devel::Cover::DB::Base->values

	   Aliased to Devel::Cover::DB::Cover->files, Devel::Cover::DB::File->criteria, Devel::Cover::DB::Criterion->locations, and
	   Devel::Cover::DB::Location->data

       o   Devel::Cover::DB::Base->get

	   Aliased to Devel::Cover::DB::Cover->file, Devel::Cover::DB::File->criteriom, Devel::Cover::DB::Criterion->location, and
	   Devel::Cover::DB::Location->datum

       Instead of calling $file->criterion("x") you can also call $file->x.

   is_valid
	my $valid = $db->is_valid;

       Returns true if $db is valid (or looks valid, the function is too lax).

SEE ALSO

	Devel::Cover
	Devel::Cover::DB::Base
	Devel::Cover::DB::Cover
	Devel::Cover::DB::File
	Devel::Cover::DB::Criterion
	Devel::Cover::DB::Location

BUGS

       Huh?

LICENCE

       Copyright 2001-2013, Paul Johnson (paul@pjcj.net)

       This software is free.  It is licensed under the same terms as Perl itself.

       The latest version of this software should be available from my homepage: http://www.pjcj.net

perl v5.16.3							    2013-05-20						       Devel::Cover::DB(3)

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Devel::Cover::Truth_Table(3)				User Contributed Perl Documentation			      Devel::Cover::Truth_Table(3)

NAME

       Devel::Cover::Truth_Table - Truth tables for coverage objects.

VERSION

       version 1.03

SYNOPSIS

	 use Devel::Cover::Truth_Table;

	 # $a || $b
	 my $or_tt  = Devel::Cover::Truth_Table->new_primitive('or_3', 0, 1, 1);

	 # $c && $d
	 my $and_tt = Devel::Cover::Truth_Table->new_primitive('and_3', 1, 0, 1);

	 # merge contents of $and_tt into right column of $or_tt, to create
	 # $a || ($c && $d)
	 $or_tt->right_merge($and_tt);

	 # get a (sorted) textual representation
	 my @text = $or_tt->sort->text;
	 print "$_
" foreach @text;

	 __END__
	 A B C |exp|hit
	 --------------
	 0 0 X | 0 |---
	 0 1 0 | 0 |---
	 0 1 1 | 1 |+++
	 1 X X | 1 |+++
	 --------------

DESCRIPTION

       This module provides methods for creating and merging conditional primitives ("$a && $b", "$c || $d", etc.) into more complex composite
       expressions.

METHODS

   new_primitive($op, @coverage)
       Create a new truth table based on one of the built-in primitives, which are the subclasses of Devel::Cover::DB::Condition. $op is one of
       the following:

       and_3
	   "and" or "&&" with three conditional paths.

       or_3
	   "or" or "||" with three conditional paths.

       or_2
	   "or" or "||" with two conditional paths. (i.e., when the right hand side of the expression is a constant)

       xor_4
	   "xor" with four conditional paths.

       @coverage is a list booleans identifying which of the possible paths have been covered.

   sort()
       Sorts a truth table (in place) and returns the sorted object.

   text()
       Format a truth table to an array of strings for printing.

   html()
       Format a truth table in HTML.

   error()
   percentage()
       Determines the proportion of possible conditions that have coverage.

   right_merge($sub_table)
       Merge entries from $sub_table into right column of table.

   left_merge($sub_table)
       Merge entries from $sub_table into left column of table.

SEE ALSO

       Devel::Cover

BUGS

       None that I'm aware of...

LICENSE

       Copyright 2002 Michael Carman <mjcarman@mchsi.com>

       This software is free. It is licensed under the same terms as Perl itself. The latest version should be available from: http://www.pjcj.net

perl v5.16.3							    2013-05-20					      Devel::Cover::Truth_Table(3)

Linux and UNIX Man Pages

devel::cover::db(3) [centos man page]

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