'Test that overflow bits are preserved during feed parsing for IPv4.'

def test_overflowIpv4(self):

    testValue = 'TEST    DATA\r\n\r\nTEST    DATA'
    header = (_makeHeaderIPv4() + testValue)
    parser = _v2parser.V2Parser()
    (info, overflow) = parser.feed(header)
    self.assertTrue(info)
    self.assertEqual(overflow, testValue)
