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package Test::MooseX::Daemonize;
{
  $Test::MooseX::Daemonize::VERSION = '0.18';
}
use strict;

our $AUTHORITY = 'cpan:PERIGRIN';

# BEGIN CARGO CULTING
use Sub::Exporter;
use Test::Builder;


{
    my @exports = qw[
      daemonize_ok
      check_test_output
    ];

    Sub::Exporter::setup_exporter(
        {
            exports => \@exports,
            groups  => { default => \@exports }
        }
    );
}

our $Test = Test::Builder->new;

sub daemonize_ok {
    my ( $daemon, $msg ) = @_;
    unless ( my $pid = fork ) {
        $daemon->start();
        exit;
    }
    else {
        sleep(1);    # Punt on sleep time, 1 seconds should be enough
        $Test->ok( $daemon->pidfile->does_file_exist, $msg )
          || $Test->diag(
            'Pidfile (' . $daemon->pidfile->file . ') not found.' );
    }
}

sub check_test_output {
    my ($app) = @_;
    open( my $stdout_in, '<', $app->test_output )
      or die "can't open test output: $!";
    while ( my $line = <$stdout_in> ) {
        $line =~ s/\s+\z//;
        my $label;
        if ( $line =~ /\A((not\s+)?ok)(?:\s+-)(?:\s+(.*))\z/ ) {
            my ( $status, $not, $text ) = ( $1, $2, $3 );
            $text ||= '';

           # We don't just call ok(!$not), because that generates diagnostics of
           # its own for failures. We only want the diagnostics from the child.
            my $orig_no_diag = $Test->no_diag;
            $Test->no_diag(1);
            $Test->ok(!$not, $text);
            $Test->no_diag($orig_no_diag);
        }
        elsif ( $line =~ s/\A#\s?// ) {
            $Test->diag($line);
        }
        else {
            $Test->diag("$label: $line (unrecognised)\n");
        }
    }
}

package Test::MooseX::Daemonize::Testable;
{
  $Test::MooseX::Daemonize::Testable::VERSION = '0.18';
}
use Moose::Role;

has test_output => (
    isa      => 'Str',
    is       => 'ro',
    required => 1,
);

after daemonize => sub {
    $Test->use_numbers(0);
    $Test->no_ending(1);
    open my $out, '>', $_[0]->test_output or die "Cannot open test output: $!";
    my $fileno = fileno $out;
    open STDERR, ">&=", $fileno
      or die "Can't redirect STDERR";

    open STDOUT, ">&=", $fileno
      or die "Can't redirect STDOUT";

    $Test->output($out);
    $Test->failure_output($out);
    $Test->todo_output($out);
};

1;
__END__

=pod

=head1 NAME

Test::MooseX::Daemonize - Tool to help test MooseX::Daemonize applications

=head1 SYNOPSIS

    use File::Spec::Functions;
    use File::Temp qw(tempdir);

    my $dir = tempdir( CLEANUP => 1 );

    ## Try to make sure we are in the test directory

    my $file = catfile( $dir, "im_alive" );
    my $daemon = FileMaker->new( pidbase => $dir, filename => $file );

    daemonize_ok( $daemon, 'child forked okay' );
    ok( -e $file, "$file exists" );

=head1 DESCRIPTION

This module provides some basic Test::Builder compatible test methods to
use when writing tests for you MooseX::Daemonize based modules.

=head1 EXPORTED FUNCTIONS

=over 4

=item B<daemonize_ok ( $daemon, ?$msg )>

This will attempt to daemonize your C<$daemon> returning ok on
success and not ok on failure.

=item B<check_test_output ( $daemon )>

This is expected to be used with a C<$daemon> which does the
B<Test::MooseX::Daemonize::Testable> role (included in this package
see the source for more info). It will collect the test output
from your daemon and apply it in the parent process by mucking
around with L<Test::Builder> stuff, again, read the source for
more info. If we get time we will document this more thoroughly.

=back

=head1 INCOMPATIBILITIES

None reported.

=head1 BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests to
C<bug-acme-dahut-call@rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org>.

=head1 SEE ALSO

L<MooseX::Daemonize>

=head1 AUTHOR

Chris Prather  C<< <perigrin@cpan.org> >>

=head1 LICENCE AND COPYRIGHT

Copyright (c) 2007-2011, Chris Prather C<< <perigrin@cpan.org> >>. All rights reserved.

This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlartistic>.

=head1 DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE
LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.

=cut