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[gitmo/Mouse.git] / t / 000-recipes / 001_point.t

#!/usr/bin/perl

use strict;
use warnings;

use Test::More;
BEGIN {
    if (eval "require Class::Method::Modifiers; 1") {
        plan tests => 58;
    }
    else {
        plan skip_all => "Class::Method::Modifiers required for this test";
    }
}

use Mouse::Util;
use t::Exception;

BEGIN {
    use_ok('Mouse');           
}

{
	package Point;	
	use Mouse;
		
	has 'x' => (isa => 'Int', is => 'ro');
	has 'y' => (isa => 'Int', is => 'rw');
	
	sub clear {
	    my $self = shift;
	    $self->{x} = 0;
	    $self->y(0);    
	}
	
}{	
	package Point3D;
	use Mouse;
	
	extends 'Point';
	
	has 'z' => (isa => 'Int');
	
	after 'clear' => sub {
	    my $self = shift;
	    $self->{z} = 0;
	};
	
}

my $point = Point->new(x => 1, y => 2);	
isa_ok($point, 'Point');
isa_ok($point, 'Mouse::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 {
    $point->x(1000);
} '... cannot assign to a read-only method';
is($point->x, 1, '... got the right (un-changed) value for x');

$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, 'Mouse::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');

dies_ok {
	$point3d->z;
} '... there is no method 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';

# test some class introspection

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

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

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

# poke at Point

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

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

SKIP: {
    skip "Mouse has no method introspection", 2 + @Point_methods;

    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');

    SKIP: {
        skip "Mouse type constraints are not objects", 2;
        isa_ok($attr->type_constraint, 'Mouse::Meta::TypeConstraint');	
        is($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 clear);
my @Point3D_attrs   = ('z');

SKIP: {
    skip "Mouse has no method introspection", 2 + @Point3D_methods;

    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 ' . $attr_name . ' has a type constraint');
    SKIP: {
        skip "Mouse type constraints are not objects", 2;
        isa_ok($attr->type_constraint, 'Mouse::Meta::TypeConstraint');	
        is($attr->type_constraint->name, 'Int', '... Attribute ' . $attr_name . ' has an Int type constraint');	
    };
}