| Test2::Compare::Base(3pm) - phpMan
Test2::Compare::Base(3pm) User Contributed Perl Documentation Test2::Compare::Base(3pm)
NAME
Test2::Compare::Base - Base class for comparison classes.
DESCRIPTION
All comparison classes for Test2::Compare should inherit from this base class.
SYNOPSIS
package Test2::Compare::MyCheck;
use strict;
use warnings;
use base 'Test2::Compare::Base';
use Test2::Util::HashBase qw/stuff/;
sub name { 'STUFF' }
sub operator {
my $self = shift;
my ($got) = @_;
return 'eq';
}
sub verify {
my $self = shift;
my $params = @_;
# Always check if $got exists! This method must return false if no
# value at all was received.
return 0 unless $params{exists};
my $got = $params{got};
# Returns true if both values match. This includes undef, 0, and other
# false-y values!
return $got eq $self->stuff;
}
METHODS
Some of these must be overridden, others can be.
$dclass = $check->delta_class
Returns the delta subclass that should be used. By default Test2::Compare::Delta is
used.
@deltas = $check->deltas(id => $id, exists => $bool, got => $got, convert => \&convert,
seen => \%seen)
Should return child deltas.
@lines = $check->got_lines($got)
This is your chance to provide line numbers for errors in the $got structure.
$op = $check->operator()
$op = $check->operator($got)
Returns the operator that was used to compare the check with the received data in
$got. If there was no value for got then there will be no arguments, undef will only
be an argument if undef was seen in $got. This is how you can tell the difference
between a missing value and an undefined one.
$bool = $check->verify(id => $id, exists => $bool, got => $got, convert => \&convert, seen
=> \%seen)
Return true if there is a shallow match, that is both items are arrayrefs, both items
are the same string or same number, etc. This should not recurse, as deep checks are
done in "$check->deltas()".
$name = $check->name
Get the name of the check.
$display = $check->render
What should be displayed in a table for this check, usually the name or value.
$delta = $check->run(id => $id, exists => $bool, got => $got, convert => \&convert, seen
=> \%seen)
This is where the checking is done, first a shallow check using "$check->verify", then
checking "$check->deltas()". "\%seen" is used to prevent cycles.
SOURCE
The source code repository for Test2-Suite can be found at
https://github.com/Test-More/Test2-Suite/.
MAINTAINERS
Chad Granum <exodist AT cpan.org>
AUTHORS
Chad Granum <exodist AT cpan.org>
COPYRIGHT
Copyright 2018 Chad Granum <exodist AT cpan.org>.
This program is free software; you can redistribute it and/or modify it under the same
terms as Perl itself.
See http://dev.perl.org/licenses/
perl v5.20.2 2023-10-25 Test2::Compare::Base(3pm)
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