/**
* @param string $className
*
* @return string
*/
protected function getTestCaseNamespace($className)
{
$testCaseFullClassName = ClassUtils::resolveTestCaseClassName($className, $this->testCaseClassName, $this->testDirectoryName);
$components = explode('\\', $testCaseFullClassName);
array_pop($components);
return implode('\\', $components);
}