vfw_approx_vnf.q_in = mock.MagicMock()
vfw_approx_vnf.q_out = mock.MagicMock()
vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)
vfw_approx_vnf.q_in = mock.MagicMock()
vfw_approx_vnf.q_out = mock.MagicMock()
vfw_approx_vnf.q_out.qsize = mock.Mock(return_value=0)