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#!/usr/bin/perl -w
# $Id: implicit_class_types.t 1525 2005-04-13 21:14:20Z theory $
##############################################################################
# Set up the tests.
##############################################################################
use strict;
use Test::More tests => 28;
##############################################################################
# Create a simple class.
##############################################################################
package Class::Meta::TestTypes;
BEGIN {
$SIG{__DIE__} = \&Carp::confess;
main::use_ok( 'Class::Meta');
main::use_ok( 'Class::Meta::Type');
}
BEGIN {
use Test::More;
ok my $cm = Class::Meta->new(
package => __PACKAGE__,
key => 'types',
name => 'Class::Meta::TestTypes Class',
), "Create TestTypes CM object";
ok $cm->add_constructor(name => 'new'), "Create TestTypes constctor";
ok $cm->build, "Build TestTypes";
}
##############################################################################
# Create another class that implicitly uses the other class as a valid data
# type.
##############################################################################
package Class::Meta::Another;
BEGIN {
use Test::More;
ok my $cm = Class::Meta->new(
package => __PACKAGE__,
key => 'another',
name => 'Class::Meta::Another Class',
), "Create Another CM object";
ok $cm->add_constructor(name => 'new'), "Create Another constctor";
ok $cm->add_attribute(
name => 'implicit',
type => 'types',
default => sub { Class::Meta::TestTypes->new },
), 'Add "types" attribute';
ok $cm->build, "Build Another";
}
package Class::Meta::YetAnother;
our $ERROR;
BEGIN {
use Test::More;
# Replace the validation checker with one of our own.
ok( Class::Meta::Type->class_validation_generator( sub {
my ($pkg, $type) = @_;
return [ sub {
my ($value, $object, $attr) = @_;
return if UNIVERSAL::isa($value, $pkg);
$ERROR = "Value '$value' is not a valid $type";
die "hooyah!";
} ];
}), "Replace class type check generator");
can_ok 'Class::Meta::Type', 'default_builder';
ok( Class::Meta::Type->default_builder('affordance'),
"Make affordance accessors for YetAnother objects" );
ok my $cm = Class::Meta->new(
package => __PACKAGE__,
key => 'yet_another',
name => 'Class::Meta::YetAnother Class',
), "Create YetAnother CM object";
ok $cm->add_constructor(name => 'new'), "Create Another constctor";
ok $cm->add_attribute(
name => 'another_implicit',
type => 'another',
default => sub { Class::Meta::Another->new },
), 'Add "another" attribute';
ok $cm->build, "Build YetAnother";
}
package main;
# Check that the "another" class was added as a data type.
ok my $an = Class::Meta::Another->new, 'Create Another object';
isa_ok $an->implicit, 'Class::Meta::TestTypes';
ok $an->implicit(Class::Meta::TestTypes->new), 'Replace TestTypes object';
isa_ok $an->implicit, 'Class::Meta::TestTypes';
eval { $an->implicit('foo') };
ok my $err = $@, "Catch TestTypes exception";
like $err, qr/Value 'foo' is not a valid Class::Meta::TestTypes/,
"Check TestTypes exception string";
# Now try with our replaced class check generator.
ok my $yet = Class::Meta::YetAnother->new, 'Create YetAnother object';
isa_ok $yet->get_another_implicit, 'Class::Meta::Another';
is $Class::Meta::YetAnother::ERROR, undef, "Check for undef error";
eval { $yet->set_another_implicit('foo') };
ok $err = $@, "Catch Another exception";
like $err, qr/hooyah\!/,
"Check Another exception string";
is $Class::Meta::YetAnother::ERROR,
"Value 'foo' is not a valid Class::Meta::Another",
"Check for defined error";
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