use Test::More;

BEGIN {
  eval { require Class::Accessor::Faster };
  if ( $@ ) {
    plan skip_all => 'Class::Accessor::Faster is required for this test';
  } else {
    plan tests => 24;
  }
}

# why Class::Accessor::Faster ? because the derived package must
# use C::A::F::new() rather than the one of Class::Lego::Constructor
# to work ok. Then this script tests this.

package Foo;

use Class::Accessor::Faster ();
BEGIN {
  require Class::Lego::Constructor;
  our @ISA = qw( Class::Accessor::Faster Class::Lego::Constructor );
}

my $counter = 0;

my %FIELDS = (
  magical_number => 42,
  title => '<untitled>',
  date => sub { scalar localtime },
  counter => sub { ++$counter },
);

__PACKAGE__->mk_constructor0( \%FIELDS );
__PACKAGE__->mk_accessors( keys %FIELDS );

package main;

ok( defined &Foo::new, '&new was defined' );

{
  my $foo = Foo->new();
  isa_ok( $foo, 'Foo' );

  is( $foo->magical_number, 42, 'magical_number gets the default' );
  is( $foo->title, '<untitled>', 'title gets the default' );
  ok( $foo->date, 'date gets the (computed) default' );
  is( $foo->counter, 1, 'counter gets the (computed) default' );
}

{
  my $foo = Foo->new({ magical_number => 13 });
  isa_ok( $foo, 'Foo' );

  is( $foo->magical_number, 13, 'magical_number gets the explicit value' );
  is( $foo->title, '<untitled>', 'title gets the default' );
  ok( $foo->date, 'date gets the (computed) default' );
  is( $foo->counter, 2, 'counter gets the (computed) default' );
}

{
  my $foo = Foo->new({ title => 'My Title' });
  isa_ok( $foo, 'Foo' );

  is( $foo->magical_number, 42, 'magical_number gets the default' );
  is( $foo->title, 'My Title', 'title gets the explicit value' );
  ok( $foo->date, 'date gets the (computed) default' );
  is( $foo->counter, 3, 'counter gets the (computed) default' );
}

{
  my $foo = Foo->new({ date => 'Today', counter => '?' });
  isa_ok( $foo, 'Foo' );

  is( $foo->magical_number, 42, 'magical_number gets the default' );
  is( $foo->title, '<untitled>', 'title gets the default' );
  is( $foo->date, 'Today', 'date gets the explicit value' );
  is( $foo->counter, '?', 'counter gets the explicit value' );
}

{
  my $foo = Foo->new();
  my $bar = Foo->new();

  is( $foo->counter, 4, 'counter gets the (computed) default' );
  is( $bar->counter, 5, 'counter gets the (computed) default' );
  isnt( $foo->counter, $bar->counter, 'different objects, different counter value' );
}