public function testShow()
{
$filesystem = new Filesystem();
$git = new Git();
$git->init($this->directory);
$git->setRepository($this->directory);
$filesystem->dumpFile($this->directory . '/README.md', 'foobar');
$git->add('README.md');
$git->commit('Initial commit');
$git->show('master', array('format' => 'oneline'));
}