/**
* Sets a directory to save generated mock files in
*
* If this is not specified MockMaker will still return the generated
* code as a string.
*
* @param string $writeDirectory Directory to save output files in
* @return MockMaker
*/
public function saveMockFilesIn($writeDirectory)
{
$this->config->setMockWriteDir($writeDirectory);
return $this;
}