#!perl

use strict;
use warnings;

use Test::Exception;
use Test::More tests => 9;

use lib 't/';
use LocalTest;

use IPC::Concurrency::DBI;


can_ok(
	'IPC::Concurrency::DBI',
	'register_application',
);

my $tests =
[
	{
		test_name         => 'Do not allow registering an application without name.',
		name              => undef,
		maximum_instances => 10,
		expected_result   => 'failure',
	},
	{
		test_name         => 'Do not allow registering an application without maximum instances set.',
		name              => 'cron_script.pl',
		maximum_instances => undef,
		expected_result   => 'failure',
	},
	{
		test_name         => 'Do not allow registering an application with an incorrect value for maximum instances.',
		name              => 'cron_script.pl',
		maximum_instances => 'a',
		expected_result   => 'failure',
	},
	{
		test_name         => 'Register application cron_script.pl.',
		name              => 'cron_script.pl',
		maximum_instances => 10,
		expected_result   => 'success',
	},
	{
		test_name         => 'Do not allow registering twice an application with the same name.',
		name              => 'cron_script.pl',
		maximum_instances => 10,
		expected_result   => 'failure',
	},
	{
		test_name         => 'Register application cron_script2.pl.',
		name              => 'cron_script2.pl',
		maximum_instances => 5,
		expected_result   => 'success',
	},
	{
		test_name         => 'Do not allow registering an application with a name longer than 255 characters.',
		name              => ( '=' x 256 ),
		maximum_instances => 5,
		expected_result   => 'failure',
	},
];

my $dbh = LocalTest::ok_database_handle();

my $concurrency_manager = IPC::Concurrency::DBI->new(
	'database_handle' => $dbh,
	'verbose'         => 0,
);

foreach my $test ( @$tests )
{
	my $test_sub = sub
	{
		# If we expect a failure, don't warn.
		# If we expect a success, output the warnings normally.
		local $SIG{__WARN__} = sub
		{
			warn $_[0]
				if $test->{'expected_result'} eq 'success';
		};
		
		$concurrency_manager->register_application(
			name              => $test->{'name'},
			maximum_instances => $test->{'maximum_instances'},
		);
	};
	
	if ( $test->{'expected_result'} eq 'success' )
	{
		lives_ok(
			sub { $test_sub->() },
			$test->{'test_name'},
		);
	}
	else
	{
		dies_ok(
			sub { $test_sub->() },
			$test->{'test_name'},
		);
	}
}