Test2::Compare::Custom(3) Custom field check for comparisons.


Sometimes you want to do something complicated or unusual when validating a field nested inside a deep data structure. You could pull it out of the structure and test it separately, or you can use this to embed the check. This provides a way for you to write custom checks for fields in deep comparisons.


my $cus = Test2::Compare::Custom->new(
name => 'IsRef',
operator => 'ref(...)',
code => sub {
my ($got, $exists, $operator, $name) = @_;
return ref($got) ? 1 : 0;
# Pass
{ a => 1, ref => {}, b => 2 },
{ a => 1, ref => $cus, b => 2 },
"This will pass"
# Fail
{a => 1, ref => 'notref', b => 2},
{a => 1, ref => $cus, b => 2},
"This will fail"


Your custom sub will be passed 4 arguments:

    code => sub {
        my ($got, $exists, $operator, $name) = @_;
        return ref($got) ? 1 : 0;

$_ is also localized to $got to make it easier for those who need to use regexes.

The value to be checked.
This will be a boolean. This will be true if $got exists at all. If $exists is false then it means $got is not simply undef, but doesn't exist at all (think checking the value of a hash key that does not exist).
The operator specified at construction.
The name provided at construction.


$code = $cus->code
Returns the coderef provided at construction.
$name = $cus->name
Returns the name provided at construction.
$op = $cus->operator
Returns the operator provided at construction.
$bool = $cus->verify(got => $got, exists => $bool)


The source code repository for Test2-Suite can be found at http://github.com/Test-More/Test2-Suite/.


Chad Granum <[email protected]>


Chad Granum <[email protected]>


Copyright 2016 Chad Granum <[email protected]>.

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/