def METHOD_NAME(self):
    """
    Test whether overriden validate_path method validates submitted path must start
    with the 'SERVICES/PACS/' string.
    """
    pacsfiles_serializer = PACSFileSerializer()
    path = 'cube/123456-Jorge/brain/brain_mri/file1.dcm'
    with self.assertRaises(serializers.ValidationError):
        pacsfiles_serializer.validate_path(path)
    path = 'SERVICES/123456-Jorge/brain/brain_mri/file1.dcm'
    with self.assertRaises(serializers.ValidationError):
        pacsfiles_serializer.validate_path(path)