Test::Identity(3) User Contributed Perl Documentation Test::Identity(3)NAME
"Test::Identity" - assert the referential identity of a reference
SYNOPSIS
use Test::More tests => 2;
use Test::Identity;
use Thingy;
{
my $thingy;
sub get_thingy { return $thingy }
sub set_thingy { $thingy = shift; }
}
identical( get_thingy, undef, 'get_thingy is undef' );
my $test_thingy = Thingy->new;
set_thingy $test_thingy;
identical( get_thingy, $thingy, 'get_thingy is now $test_thingy' );
DESCRIPTION
This module provides a single testing function, "identical". It asserts
that a given reference is as expected; that is, it either refers to the
same object or is "undef". It is similar to "Test::More::is" except
that it uses "refaddr", ensuring that it behaves correctly even if the
references under test are objects that overload stringification or
numification.
It also provides better diagnostics if the test fails:
$ perl -MTest::More=tests,1 -MTest::Identity -e'identical [], {}'
1..1
not ok 1
# Failed test at -e line 1.
# Expected an anonymous HASH ref, got an anonymous ARRAY ref
# Looks like you failed 1 test of 1.
$ perl -MTest::More=tests,1 -MTest::Identity -e'identical [], []'
1..1
not ok 1
# Failed test at -e line 1.
# Expected an anonymous ARRAY ref to the correct object
# Looks like you failed 1 test of 1.
FUNCTIONS
identical( $got, $expected, $name )
Asserts that $got refers to the same object as $expected.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.18.2 2014-05-13 Test::Identity(3)
