public function testCustomizations()
{
$progress = new ProgressHelper();
$progress->setBarWidth(10);
$progress->setBarCharacter('_');
$progress->setEmptyBarCharacter(' ');
$progress->setProgressCharacter('/');
$progress->setFormat(' %current%/%max% [%bar%] %percent%%');
$progress->start($output = $this->getOutputStream(), 10);
$progress->advance();
rewind($output->getStream());
$this->assertEquals($this->generateOutput(' 1/10 [_/ ] 10%'), stream_get_contents($output->getStream()));
}