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#!/usr/bin/perl -I.. # Test Hash vs Hash1 functionality use strict; use Test::More tests => 13; # Find the module (1 test) BEGIN {use_ok('Readonly'); } sub expected { my $line = shift; $@ =~ s/\.$//; # difference between croak and die return "Modification of a read-only value attempted at " . __FILE__ . " line $line\n"; } use vars qw/%h1 %h2/; my $m1 = 17; # Create (2 tests) eval {Readonly::Hash %h1 => (key1 => \$m1, key2 => {x => 5, z => [1, 2, 3]})}; is $@ => '', 'Create a deep reference array'; eval {Readonly::Hash1 %h2 => (key1 => \$m1, key2 => {x => 5, z => [1, 2, 3]})}; is $@ => '', 'Create a shallow reference array'; # Modify (10 tests) eval {$h1{key1} = 7}; is $@ => expected(__LINE__-1), 'Modify h1'; eval {$h2{key1} = 7}; is $@ => expected(__LINE__-1), 'Modify h2'; eval {${$h1{key1}} = "the"}; is $@ => expected(__LINE__-1), 'Deep-modify h1'; is $m1 => 17, 'h1 unchanged'; eval {${$h2{key1}} = "the"}; is $@ => '', 'Deep-modify h2'; is $m1 => 'the', 'h2 modification successful'; eval {$h1{key2}{z}[1] = 42}; is $@ => expected(__LINE__-1), 'Deep-deep modify h1'; is $h1{key2}{z}[1] => 2, 'h1 unchanged'; eval {$h2{key2}{z}[2] = 42}; is $@ => '', 'Deep-deep modify h2'; is $h2{key2}{z}[2], 42, 'h2 mod successful';
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