@Test(expected = ProtocolVersion.InvalidFrameException.class)
public void Protocol_should_refuse_bad_greetings_frame_3() throws ProtocolVersion.InvalidFrameException, ProtocolVersion.InvalidProtocolVersionException {

    //Given
    byte[] bad = new byte[]{0, 0, 3, 1};
    //when
    ProtocolVersion.checkVersion(bad);
}