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#!perl -I..
# Readonly array tests
use strict;
use Test::More tests => 23;
# 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/@a1 @a2/;
my @ma1;
# creation (3 tests)
eval 'Readonly::Array @a1;';
is $@ =>'', 'Create empty global array';
eval 'Readonly::Array @ma1 => ();';
is $@ => '', 'Create empty lexical array';
eval 'Readonly::Array @a2 => (1,2,3,4,5);';
is $@ => '', 'Create global array';
# fetching (3 tests)
ok !defined($a1[0]), 'Fetch global';
is $a2[0] => 1, 'Fetch global';
is $a2[-1] => 5, 'Fetch global';
# fetch size (3 tests)
is scalar(@a1) => 0, 'Global size (zero)';
is scalar(@ma1) => 0, 'Lexical size (zero)';
is $#a2 => 4, 'Global last element (nonzero)';
# store (2 tests)
eval {$ma1[0] = 5;};
is $@ => expected(__LINE__-1), 'Lexical store';
eval {$a2[3] = 4;};
is $@ => expected(__LINE__-1), 'Global store';
# storesize (1 test)
eval {$#a1 = 15;};
is $@ => expected(__LINE__-1), 'Change size';
# extend (1 test)
eval {$a1[77] = 88;};
is $@ => expected(__LINE__-1), 'Extend';
# exists (2 tests)
SKIP: {
skip "Can't do exists on array until Perl 5.6", 2 if $] < 5.006;
eval 'ok(exists $a2[4], "Global exists")';
eval 'ok(!exists $ma1[4], "Lexical exists")';
}
# clear (1 test)
eval {@a1 = ();};
is $@ => expected(__LINE__-1), 'Clear';
# push (1 test)
eval {push @ma1, -1;};
is $@ => expected(__LINE__-1), 'Push';
# unshift (1 test)
eval {unshift @a2, -1;};
is $@ => expected(__LINE__-1), 'Unshift';
# pop (1 test)
eval {pop (@a2);};
is $@ => expected(__LINE__-1), 'Pop';
# shift (1 test)
eval {shift (@a2);};
is $@ => expected(__LINE__-1), 'shift';
# splice (1 test)
eval {splice @a2, 0, 1;};
is $@ => expected(__LINE__-1), 'Splice';
# untie (1 test)
SKIP: {
skip "Can't catch untie until Perl 5.6", 1 if $] <= 5.006;
eval {untie @a2;};
is $@ => expected(__LINE__-1), 'Untie';
}
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