/**
* @return null
*/
public function testConstructRootPath()
{
/* empty string is allowed */
$path = '';
$dependency = new ClassDependency($path);
$this->assertEquals($path, $dependency->getRootPath());
/* any padding will be trimed */
$path = ' /root/path';
$dependency = new ClassDependency($path);
$this->assertEquals(trim($path), $dependency->getRootPath());
$path = "\t /root/path/ \t";
$dependency = new ClassDependency($path);
$this->assertEquals(trim($path), $dependency->getRootPath());
}