@Test
public void Should_saveTimeInMessageContext()
        throws Exception {

    IMessageProcessor mp = mock(IMessageProcessor.class);
    when(mp.getContext()).thenReturn(mock(IObject.class));
    new SaveTimestampReceiver(timeFieldMock).receive(mp);
    verify(mp.getContext()).setValue(timeFieldMock, timeMock.currentTimeMillis());
}