public function testAnsweredWithN()
{
$io = $this->prophesize('Composer\\IO\\IOInterface');
$io->write()->shouldNotBeCalled();
$config = $this->getConfig();
$question = $config['questions']['container'];
$answer = 'n';
$copyFilesKey = 'minimal-files';
$result = OptionalPackages::processAnswer($io->reveal(), $question, $answer, $copyFilesKey);
$this->assertFalse($result);
$this->assertFileNotExists($this->getProjectRoot() . '/config/container.php');
}