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        return 0;
    }

    sub documentation {
        return 'This is a test script.';
    }

    no Moose;
    __PACKAGE__->meta->make_immutable;
}

{

    package Test::Script::ThatDies;

    use Moose;
    extends 'Test::Script';

    sub script_run {
        die "I died";
    }

    no Moose;
    __PACKAGE__->meta->make_immutable;
}

{

    package Test::Script::OnlyOne;
    use Moose;
    extends 'Test::Script';
    with 'App::Base::Script::OnlyOne';

    sub script_run {
        sleep($ENV{ONLY_ONE_SLEEP} // 0);
        return 0;
    }

}

local %ENV = %ENV;
delete $ENV{COLUMNS};
my $sc = Test::Script->new;

my $switches = qq{--help             Show this help information
};

my @switch_lines = split(/[\r\n]/, $switches);
my @output_lines = split(/[\r\n]/, $sc->switches);
$_ =~ s/\s+/ /g for @switch_lines;
$_ =~ s/\s+/ /g for @output_lines;
for (my $line = 0; $line < $#switch_lines; $line++) {
    is($switch_lines[$line], $output_lines[$line], "Switch output line " . ($line + 1) . " is correct");
}
is(0, $sc->run, 'Run returns 0');

divert_stderr(
    sub {
        HELP:
        {
            local @ARGV = ('--help');
            exits_ok(sub { Test::Script->new->run; }, "--help forces exit");
        }

        DEATH:
        {
            local @ARGV;
            warnings_like {
                exits_ok(sub { Test::Script::ThatDies->new->run; }, "die() in script causes exit");
            }
            [qr/^I die/], "Expected warning about his death";
        }

        ERROR:
        {
            warnings_like {
                exits_ok(
                    sub {
                        my $script = Test::Script->new;
                        $script->error('This is really bad juju.');
                    },
                    "error() causes exit"
                );
            }
            [qr/^This is really bad juju/], "Expected warning about bad juju";
        }
    },
);

my $piddir = Path::Tiny->tempdir(CLEANUP => 0);
$ENV{APP_BASE_DAEMON_PIDDIR} = $piddir;

my $pid = fork;
die "Couldn't fork" unless defined $pid;

$ENV{ONLY_ONE_SLEEP} = 100;
if ($pid == 0) {
    Test::Script::OnlyOne->new->run;
    exit 0;
}

sleep 1;

my $pid2 = fork;
if ($pid2 == 0) {
    warnings_like {
        Test::Script::OnlyOne->new->run;
    }
    [qr/^Couldn't lock pid file/], "Expected warning about lock file";
    exit 0;
}
$SIG{__DIE__} = sub { kill KILL => $pid2; };
$SIG{ALRM}    = sub { kill KILL => $pid2; };
waitpid $pid2, 0;
ok $?, "Can't run second copy of OnlyOne script";

kill KILL => $pid;
waitpid $pid, 0;

$ENV{ONLY_ONE_SLEEP} = 1;
is(Test::Script::OnlyOne->new->run, 0, "OnlyOne copy can run");

$piddir->remove_tree;

done_testing;