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[p5sagit/Class-Accessor-Grouped.git] / t / accessors_ro.t

use Test::More tests => 48;
use Test::Exception;
use strict;
use warnings;
use lib 't/lib';

# we test the pure-perl versions only, but allow overrides
# from the accessor_xs test-umbrella
# Also make sure a rogue envvar will not interfere with
# things
my $use_xs;
BEGIN {
  $Class::Accessor::Grouped::USE_XS = 0
    unless defined $Class::Accessor::Grouped::USE_XS;
  $ENV{CAG_USE_XS} = 1;
  $use_xs = $Class::Accessor::Grouped::USE_XS;
};

use AccessorGroupsRO;

my $obj = AccessorGroupsRO->new;

{
  my $warned = 0;

  local $SIG{__WARN__} = sub {
    if  (shift =~ /DESTROY/i) {
      $warned++;
    };
  };

  no warnings qw/once/;
  local *AccessorGroupsRO::DESTROY = sub {};

  $obj->mk_group_ro_accessors('warnings', 'DESTROY');

  ok($warned);
};

my $test_accessors = {
  singlefield => {
    is_xs => $use_xs,
  },
  multiple1 => {
  },
  multiple2 => {
  },
  lr1name => {
    custom_field => 'lr1;field',
  },
  lr2name => {
    custom_field => "lr2'field",
  },
};

for my $name (sort keys %$test_accessors) {

  my $alias = "_${name}_accessor";
  my $field = $test_accessors->{$name}{custom_field} || $name;

  can_ok($obj, $name, $alias);

  ok(!$obj->can($field))
    if $field ne $name;

  is($obj->$name, undef);
  is($obj->$alias, undef);

  # get via name
  $obj->{$field} = 'a';
  is($obj->$name, 'a');

  # alias gets same as name
  is($obj->$alias, 'a');

  my $ro_regex = $test_accessors->{$name}{is_xs}
    ? qr/Usage\:.+$name.*\(self\)/
    : qr/cannot alter the value of '\Q$field\E'/
  ;

  # die on set via name/alias
  throws_ok {
    $obj->$name('b');
  } $ro_regex;

  throws_ok {
    $obj->$alias('b');
  } $ro_regex;

  # value should be unchanged
  is($obj->$name, 'a');
  is($obj->$alias, 'a');
};

#important
1;