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tcp_packager_test.go
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package modbus
import (
"encoding/hex"
"sync"
"testing"
)
// 使用modbus slave 模拟进行测试
func TestTcpReadCoils(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
request, results, err := c.ReadCoils(0, 2000)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTcpWriteSingleCoil(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
request, results, err := c.WriteSingleCoil(0, true)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTcpWriteMultipleCoils(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
coils := []bool{false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true}
request, results, err := c.WriteMultipleCoils(0, uint16(len(coils)), coils)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTcpReadDiscreteInputs(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
request, results, err := c.ReadDiscreteInputs(0, 2000)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTcpReadInputRegisters(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
request, results, err := c.ReadInputRegisters(0, 125)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTcpReadHoldingRegisters(t *testing.T) {
st := NewTcpTransporter("127.0.0.1:502")
defer func() { _ = st.Close() }()
pk := NewTcpPackager(1)
c := NewClient(pk, st)
request, results, err := c.ReadHoldingRegisters(0, 125)
if err != nil {
t.Log("request", hex.EncodeToString(request.GetData()))
t.Error(err)
t.FailNow()
}
t.Log("request", hex.EncodeToString(request.GetData()))
t.Log("results", hex.EncodeToString(results.GetData()))
t.Logf("results length %d ", results.GetPDU().Length())
t.Logf("results data %s", hex.EncodeToString(results.GetPDU().GetData()))
}
func TestTransactionID(t *testing.T) {
pk := tcpPackager{
slaveID: 1,
}
var wg sync.WaitGroup
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
t.Logf("tcpPackager TransactionID %d", pk.transaction())
wg.Done()
}()
}
wg.Wait()
}