Devel::Cover::Truth_Table − Truth tables for coverage objects.
version 1.40
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 = $or_tt−>sort−>text;
print "$_\n" foreach @text;
__END__
A B C |exp|hit
−−−−−−−−−−−−−−
0 0 X | 0 |−−−
0 1 0 | 0 |−−−
0 1 1 | 1 |+++
1 X X | 1 |+++
−−−−−−−−−−−−−−
This module provides methods for creating and merging conditional primitives ("$a && $b", "$c || $d", etc.) into more complex composite expressions.
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.
Sorts a truth table (in place) and returns the sorted object.
Format a truth table to an array of strings for printing.
Format a truth table in HTML.
Determines the proportion of possible conditions that have coverage.
Merge entries from $sub_table into right column of table.
Merge entries from $sub_table into left column of table.
Devel::Cover
None that I’m aware of...
Copyright 2002 Michael Carman <[email protected]>
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