<?php

/*
* This file is part of the Symfony package.
*
* (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 Symfony\Component\Console\Tests\Output;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Console\Formatter\OutputFormatter;
use Symfony\Component\Console\Output\NullOutput;
use Symfony\Component\Console\Output\Output;
use Symfony\Component\Console\Output\OutputInterface;

class NullOutputTest extends TestCase
{
public function testConstructor()
{
$output = new NullOutput();

ob_start();
$output->write('foo');
$buffer = ob_get_clean();

$this->assertSame('', $buffer, '->write() does nothing (at least nothing is printed)');
$this->assertFalse($output->isDecorated(), '->isDecorated() returns false');
}

public function testVerbosity()
{
$output = new NullOutput();
$this->assertSame(OutputInterface::VERBOSITY_QUIET, $output->getVerbosity(), '->getVerbosity() returns VERBOSITY_QUIET for NullOutput by default');

$output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
$this->assertSame(OutputInterface::VERBOSITY_QUIET, $output->getVerbosity(), '->getVerbosity() always returns VERBOSITY_QUIET for NullOutput');
}

public function testSetFormatter()
{
$output = new NullOutput();
$outputFormatter = new OutputFormatter();
$output->setFormatter($outputFormatter);
$this->assertNotSame($outputFormatter, $output->getFormatter());
}

public function testSetVerbosity()
{
$output = new NullOutput();
$output->setVerbosity(Output::VERBOSITY_NORMAL);
$this->assertEquals(Output::VERBOSITY_QUIET, $output->getVerbosity());
}

public function testSetDecorated()
{
$output = new NullOutput();
$output->setDecorated(true);
$this->assertFalse($output->isDecorated());
}

public function testIsQuiet()
{
$output = new NullOutput();
$this->assertTrue($output->isQuiet());
}

public function testIsVerbose()
{
$output = new NullOutput();
$this->assertFalse($output->isVerbose());
}

public function testIsVeryVerbose()
{
$output = new NullOutput();
$this->assertFalse($output->isVeryVerbose());
}

public function testIsDebug()
{
$output = new NullOutput();
$this->assertFalse($output->isDebug());
}
}