test coverage around sequence resets in resend state

Author: Chris Busbey

quickfix_test.go

@@ -151,6 +151,13 @@ func (m *MessageFactory) ResendRequest(beginSeqNo int) Message {
 	return msg
 }
 
+func (m *MessageFactory) SequenceReset(seqNo int) Message {
+	msg := m.buildMessage(enum.MsgType_SEQUENCE_RESET)
+	msg.Body.SetField(tagNewSeqNo, FIXInt(seqNo))
+
+	return msg
+}
+
 type MockSessionReceiver struct {
 	sendChannel chan []byte
 }

resend_state_test.go

@@ -95,3 +95,34 @@ func (s *resendStateTestSuite) TestFixMsgIn() {
 	s.State(inSession{})
 	s.NextTargetMsgSeqNum(5)
 }
+
+func (s *resendStateTestSuite) TestFixMsgInSequenceReset() {
+	s.session.State = inSession{}
+
+	//in session expects seq number 1, send too high
+	s.MessageFactory.SetNextSeqNum(3)
+	s.MockApp.On("ToAdmin")
+
+	msgSeqNum2 := s.NewOrderSingle()
+	s.fixMsgIn(s.session, msgSeqNum2)
+
+	s.MockApp.AssertExpectations(s.T())
+	s.State(resendState{})
+	s.LastToAdminMessageSent()
+	s.MessageType(enum.MsgType_RESEND_REQUEST, s.MockApp.lastToAdmin)
+	s.FieldEquals(tagBeginSeqNo, 1, s.MockApp.lastToAdmin.Body)
+	s.NextTargetMsgSeqNum(1)
+
+	s.MessageFactory.SetNextSeqNum(1)
+	s.MockApp.On("FromAdmin").Return(nil)
+	s.fixMsgIn(s.session, s.SequenceReset(2))
+	s.NextTargetMsgSeqNum(2)
+	s.State(resendState{})
+
+	s.MockApp.On("FromApp").Return(nil)
+	s.fixMsgIn(s.session, s.NewOrderSingle())
+
+	s.MockApp.AssertNumberOfCalls(s.T(), "FromApp", 2)
+	s.NextTargetMsgSeqNum(4)
+	s.State(inSession{})
+}