<?php

/*
 * This file is part of the Silex framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Silex\Tests;

use Pimple\Container;
use Silex\CallbackResolver;

class CallbackResolverTest extends \PHPUnit_Framework_Testcase
{
    private $app;
    private $resolver;

    public function setup()
    {
        $this->app = new Container();
        $this->resolver = new CallbackResolver($this->app);
    }

    public function testShouldResolveCallback()
    {
        $callable = function () {};
        $this->app['some_service'] = function () { return new \ArrayObject(); };
        $this->app['callable_service'] = function () use ($callable) {
            return $callable;
        };

        $this->assertTrue($this->resolver->isValid('some_service:methodName'));
        $this->assertTrue($this->resolver->isValid('callable_service'));
        $this->assertEquals(
            array($this->app['some_service'], 'append'),
            $this->resolver->convertCallback('some_service:append')
        );
        $this->assertSame($callable, $this->resolver->convertCallback('callable_service'));
    }

    /**
     * @dataProvider nonStringsAreNotValidProvider
     */
    public function testNonStringsAreNotValid($name)
    {
        $this->assertFalse($this->resolver->isValid($name));
    }

    public function nonStringsAreNotValidProvider()
    {
        return array(
            array(null),
            array('some_service::methodName'),
            array('missing_service'),
        );
    }

    /**
     * @expectedException          \InvalidArgumentException
     * @expectedExceptionMessageRegExp  /Service "[a-z_]+" is not callable./
     * @dataProvider shouldThrowAnExceptionIfServiceIsNotCallableProvider
     */
    public function testShouldThrowAnExceptionIfServiceIsNotCallable($name)
    {
        $this->app['non_callable_obj'] = function () { return new \stdClass(); };
        $this->app['non_callable'] = function () { return array(); };
        $this->resolver->convertCallback($name);
    }

    public function shouldThrowAnExceptionIfServiceIsNotCallableProvider()
    {
        return array(
            array('non_callable_obj:methodA'),
            array('non_callable'),
        );
    }
}