1Devel::Cover::DB(3)   User Contributed Perl Documentation  Devel::Cover::DB(3)
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NAME

6       Devel::Cover::DB - Code coverage metrics for Perl
7

VERSION

9       version 1.36
10

SYNOPSIS

12        use Devel::Cover::DB;
13
14        my $db = Devel::Cover::DB->new(db => "my_coverage_db");
15        $db->print_summary([$file1, $file2], ["statement", "pod"]);
16

DESCRIPTION

18       This module provides access to a database of code coverage information.
19

METHODS

21   new
22        my $db = Devel::Cover::DB->new(db => "my_coverage_db");
23
24       Constructs the DB from the specified database.
25
26   cover
27        my $cover = $db->cover;
28
29       Returns a Devel::Cover::DB::Cover object.  From here all the coverage
30       data may be accessed.
31
32        my $cover = $db->cover;
33        for my $file ($cover->items) {
34            print "$file\n";
35            my $f = $cover->file($file);
36            for my $criterion ($f->items) {
37                print "  $criterion\n";
38                my $c = $f->criterion($criterion);
39                for my $location ($c->items) {
40                    my $l = $c->location($location);
41                    print "    $location @$l\n";
42                }
43            }
44        }
45
46       Data for different criteria will be in different formats, so that will
47       need special handling.  This is not yet documented so your best bet for
48       now is to look at some of the simpler reports and/or the source.
49
50       The methods in the above example are actually aliases for methods in
51       Devel::Cover::DB::Base (the base class for all Devel::Cover::DB::*
52       classes):
53
54       •   Devel::Cover::DB::Base->values
55
56           Aliased to Devel::Cover::DB::Cover->files,
57           Devel::Cover::DB::File->criteria,
58           Devel::Cover::DB::Criterion->locations, and
59           Devel::Cover::DB::Location->data
60
61       •   Devel::Cover::DB::Base->get
62
63           Aliased to Devel::Cover::DB::Cover->file,
64           Devel::Cover::DB::File->criterion,
65           Devel::Cover::DB::Criterion->location, and
66           Devel::Cover::DB::Location->datum
67
68       Instead of calling $file->criterion("x") you can also call $file->x.
69
70   is_valid
71        my $valid = $db->is_valid;
72
73       Returns true if $db is valid (or looks valid, the function is too lax).
74

SEE ALSO

76        Devel::Cover
77        Devel::Cover::DB::Base
78        Devel::Cover::DB::Cover
79        Devel::Cover::DB::File
80        Devel::Cover::DB::Criterion
81        Devel::Cover::DB::Location
82

BUGS

84       Huh?
85

LICENCE

87       Copyright 2001-2019, Paul Johnson (paul@pjcj.net)
88
89       This software is free.  It is licensed under the same terms as Perl
90       itself.
91
92       The latest version of this software should be available from my
93       homepage: http://www.pjcj.net
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97perl v5.34.0                      2021-07-22               Devel::Cover::DB(3)
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