def METHOD_NAME(self):
    ds = self.ds
    tf = self.setup_transfer_function("camera")
    data_source = ds.sphere(ds.domain_center, ds.domain_width[0] * 0.5)
    cam = ds.camera(
        self.c,
        self.L,
        self.W,
        self.N,
        log_fields=[False],
        transfer_function=tf,
        data_source=data_source,
    )
    cam.snapshot("data_source_camera.png")
    assert_fname("data_source_camera.png")