Revised Basics Recipe 1 a fair bit ...

[gitmo/Moose.git] / t / 000_recipes / basics / 001_point.t

#!/usr/bin/perl

use strict;
use warnings;

use Test::More tests => 57;
use Test::Exception;

{
    package Point;
    use Moose;

    has 'x' => (isa => 'Int', is => 'rw', required => 1);
    has 'y' => (isa => 'Int', is => 'rw', required => 1);

    sub clear {
        my $self = shift;
        $self->x(0);
        $self->y(0);
    }

    __PACKAGE__->meta->make_immutable( debug => 0 );
}

{
    package Point3D;
    use Moose;

    extends 'Point';

    has 'z' => (isa => 'Int', is => 'rw', required => 1);

    after 'clear' => sub {
        my $self = shift;
        $self->z(0);
    };

    __PACKAGE__->meta->make_immutable( debug => 0 );
}

my $point = Point->new(x => 1, y => 2);	
isa_ok($point, 'Point');
isa_ok($point, 'Moose::Object');

is($point->x, 1, '... got the right value for x');
is($point->y, 2, '... got the right value for y');

$point->y(10);
is($point->y, 10, '... got the right (changed) value for y');

dies_ok {
	$point->y('Foo');
} '... cannot assign a non-Int to y';

dies_ok {
    Point->new();
} '... must provide required attributes to new';

$point->clear();

is($point->x, 0, '... got the right (cleared) value for x');
is($point->y, 0, '... got the right (cleared) value for y');

# check the type constraints on the constructor

lives_ok {
	Point->new(x => 0, y => 0);
} '... can assign a 0 to x and y';

dies_ok {
	Point->new(x => 10, y => 'Foo');
} '... cannot assign a non-Int to y';

dies_ok {
	Point->new(x => 'Foo', y => 10);
} '... cannot assign a non-Int to x';

# Point3D

my $point3d = Point3D->new({ x => 10, y => 15, z => 3 });
isa_ok($point3d, 'Point3D');
isa_ok($point3d, 'Point');
isa_ok($point3d, 'Moose::Object');

is($point3d->x, 10, '... got the right value for x');
is($point3d->y, 15, '... got the right value for y');
is($point3d->{'z'}, 3, '... got the right value for z');

$point3d->clear();

is($point3d->x, 0, '... got the right (cleared) value for x');
is($point3d->y, 0, '... got the right (cleared) value for y');
is($point3d->z, 0, '... got the right (cleared) value for z');

dies_ok {
	Point3D->new(x => 10, y => 'Foo', z => 3);
} '... cannot assign a non-Int to y';

dies_ok {
	Point3D->new(x => 'Foo', y => 10, z => 3);
} '... cannot assign a non-Int to x';

dies_ok {
	Point3D->new(x => 0, y => 10, z => 'Bar');
} '... cannot assign a non-Int to z';

dies_ok {
	Point3D->new(x => 10, y => 3);
} '... z is a required attribute for Point3D';

# test some class introspection

can_ok('Point', 'meta');
isa_ok(Point->meta, 'Moose::Meta::Class');

can_ok('Point3D', 'meta');
isa_ok(Point3D->meta, 'Moose::Meta::Class');

isnt(Point->meta, Point3D->meta, '... they are different metaclasses as well');

# poke at Point

is_deeply(
	[ Point->meta->superclasses ],
	[ 'Moose::Object' ],
	'... Point got the automagic base class');

my @Point_methods = qw(meta new x y clear);
my @Point_attrs   = ('x', 'y');

is_deeply(
	[ sort @Point_methods                 ],
	[ sort Point->meta->get_method_list() ],
	'... we match the method list for Point');
	
is_deeply(
	[ sort @Point_attrs                      ],
	[ sort Point->meta->get_attribute_list() ],
	'... we match the attribute list for Point');	

foreach my $method (@Point_methods) {
	ok(Point->meta->has_method($method), '... Point has the method "' . $method . '"');
}

foreach my $attr_name (@Point_attrs ) {
	ok(Point->meta->has_attribute($attr_name), '... Point has the attribute "' . $attr_name . '"');    
    my $attr = Point->meta->get_attribute($attr_name);
	ok($attr->has_type_constraint, '... Attribute ' . $attr_name . ' has a type constraint');
	isa_ok($attr->type_constraint, 'Moose::Meta::TypeConstraint');	
    is($attr->type_constraint->name, 'Int', '... Attribute ' . $attr_name . ' has an Int type constraint');	
}

# poke at Point3D

is_deeply(
	[ Point3D->meta->superclasses ],
	[ 'Point' ],
	'... Point3D gets the parent given to it');

my @Point3D_methods = qw(new meta z clear);
my @Point3D_attrs   = ('z');

is_deeply(
	[ sort @Point3D_methods                 ],
	[ sort Point3D->meta->get_method_list() ],
	'... we match the method list for Point3D');
	
is_deeply(
	[ sort @Point3D_attrs                      ],
	[ sort Point3D->meta->get_attribute_list() ],
	'... we match the attribute list for Point3D');	

foreach my $method (@Point3D_methods) {
	ok(Point3D->meta->has_method($method), '... Point3D has the method "' . $method . '"');
}

foreach my $attr_name (@Point3D_attrs ) {
	ok(Point3D->meta->has_attribute($attr_name), '... Point3D has the attribute "' . $attr_name . '"');    
    my $attr = Point3D->meta->get_attribute($attr_name);
	ok($attr->has_type_constraint, '... Attribute ' . $attr_name . ' has a type constraint');
	isa_ok($attr->type_constraint, 'Moose::Meta::TypeConstraint');	
    is($attr->type_constraint->name, 'Int', '... Attribute ' . $attr_name . ' has an Int type constraint');	
}