Symfony Console wideness issue

gistfile1.php

<?php

/*
 * This file allow to test that the console wideness influence 
 * the way the console output is displayed
 */

namespace Symfony\Component\Console\Tests\Tester;

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Output\Output;
use Symfony\Component\Console\Tester\ApplicationTester;

class ApplicationTesterTest extends \PHPUnit_Framework_TestCase
{
    protected $application;
    protected $tester;

    protected function setUp()
    {
        $this->application = new Application();
        $this->application->setAutoExit(false);
        $this->application->register('foo')
            ->addArgument('foo')
            ->setCode(function ($input, $output) { throw new \Exception('"since" or "ids" or "emails" options must not be setted when from-redis is true.'); })
        ;

        $this->tester = new ApplicationTester($this->application);
        $this->tester->run(array('command' => 'foo', 'foo' => 'bar'), array('interactive' => false, 'decorated' => false, 'verbosity' => Output::VERBOSITY_VERBOSE));
    }

    protected function tearDown()
    {
        $this->application = null;
        $this->tester = null;
    }

    public function testGetOutputWideness()
    {
        rewind($this->tester->getOutput()->getStream());
        $this->assertContains('"since" or "ids" or "emails" options must not be setted when from-redis is true.', stream_get_contents($this->tester->getOutput()->getStream()));
    }

    public function testGetDisplayWideness()
    {
        $this->assertContains('"since" or "ids" or "emails" options must not be setted when from-redis is true.', $this->tester->getDisplay());
    }

}