Add docs on how metaclass incompat is resolved

[gitmo/Moose.git] / t / 050_metaclasses / 018_throw_error.t

#!/usr/bin/perl

use strict;
use warnings;

use Test::More 'no_plan';;

{
    package Foo;
    use Moose;

    has foo => ( is  => "ro" );

    package Bar;
    use metaclass (
        metaclass => "Moose::Meta::Class",
        error_builder => "croak",
    );
    use Moose;

    has foo => ( is  => "ro" );

    package Baz;
    use metaclass (
        metaclass => "Moose::Meta::Class",
        error_class => "Baz::Error",
    );
    use Moose;

    has foo => ( is  => "ro" );

    package Baz::Error;
    use Moose;

    has message => ( isa => "Str", is => "ro" );
    has attr => ( isa => "Moose::Meta::Attribute", is => "ro" );
    has method => ( isa => "Moose::Meta::Method", is => "ro" );
    has metaclass => ( isa => "Moose::Meta::Class", is => "ro" );
    has data => ( is => "ro" );
    has line => ( isa => "Int", is => "ro" );
    has file => ( isa => "Str", is => "ro" );
}

my $line;
sub blah { $line = __LINE__; shift->foo(4) }

sub create_error {
    eval { blah(shift) };
    ok( my $e = $@, "got some error" );
    return {
        file => __FILE__,
        line => $line,
        error => $e,
    }
}

{
    my $e = create_error(Foo->new);
    ok( !ref($e->{error}), "error is a string" );
    like( $e->{error}, qr/line $e->{line}\n.*\n/s, "confess" );
}

{
    my $e = create_error(Bar->new);
    ok( !ref($e->{error}), "error is a string" );
    like( $e->{error}, qr/line $e->{line}$/s, "croak" );
}

{
    my $e = create_error(my $baz = Baz->new);
    isa_ok( $e->{error}, "Baz::Error" );
    unlike( $e->{error}->message, qr/line $e->{line}/s, "no line info, just a message" );
    isa_ok( $e->{error}->metaclass, "Moose::Meta::Class", "metaclass" );
    is( $e->{error}->metaclass, Baz->meta, "metaclass value" );
    isa_ok( $e->{error}->attr, "Moose::Meta::Attribute", "attr" );
    is( $e->{error}->attr, Baz->meta->get_attribute("foo"), "attr value" );
    isa_ok( $e->{error}->method, "Moose::Meta::Method", "method" );
    is( $e->{error}->method, Baz->meta->get_method("foo"), "method value" );
    is( $e->{error}->line, $e->{line}, "line attr" );
    is( $e->{error}->file, $e->{file}, "file attr" );
    is_deeply( $e->{error}->data, [ $baz, 4 ], "captured args" );
}