/**
  * test get content type
  */
 public function testGetContentType()
 {
     $this->testCreateFile();
     $contentType = $this->_controller->getContentType($this->_basePath . '/PHPUNIT/phpunit.txt');
     // finfo_open() for content type detection is only available in php versions >= 5.3.0'
     $expectedContentType = version_compare(PHP_VERSION, '5.3.0', '>=') && function_exists('finfo_open') ? 'text/plain' : 'application/octet-stream';
     $this->assertEquals($expectedContentType, $contentType);
 }