168 lines
2.8 KiB
Go
168 lines
2.8 KiB
Go
package client_test
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import (
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"bufio"
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"net"
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"testing"
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"git.lang-dieter.de/rs2322tcp/internal/client"
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"git.lang-dieter.de/rs2322tcp/internal/transport"
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)
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func startTestServer(t *testing.T, handler func(net.Conn)) string {
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t.Helper()
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatalf("listen failed: %v", err)
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}
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t.Cleanup(func() {
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_ = listener.Close()
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})
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go func() {
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conn, err := listener.Accept()
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if err != nil {
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return
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}
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handler(conn)
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}()
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return listener.Addr().String()
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}
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func TestClientHello(t *testing.T) {
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address := startTestServer(t, func(conn net.Conn) {
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defer conn.Close()
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reader := bufio.NewReader(conn)
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var hello transport.HelloMessage
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if err := transport.ReadMessage(reader, &hello); err != nil {
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return
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}
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if hello.Type != transport.MessageHello {
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return
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}
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_ = transport.WriteMessage(
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conn,
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transport.NewHelloResponse(),
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)
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})
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c, err := client.New(address)
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if err != nil {
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t.Fatalf("client.New() failed: %v", err)
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}
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defer c.Close()
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}
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func TestClientGetDevices(t *testing.T) {
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address := startTestServer(t, func(conn net.Conn) {
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defer conn.Close()
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reader := bufio.NewReader(conn)
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// HELLO
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var hello transport.HelloMessage
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if err := transport.ReadMessage(reader, &hello); err != nil {
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return
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}
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if hello.Type != transport.MessageHello {
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return
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}
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if err := transport.WriteMessage(
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conn,
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transport.NewHelloResponse(),
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); err != nil {
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return
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}
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// GET_DEVICES
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var request transport.GetDevicesMessage
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if err := transport.ReadMessage(reader, &request); err != nil {
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return
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}
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if request.Type != transport.MessageGetDevices {
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return
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}
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response := transport.NewDeviceList([]transport.RemoteDeviceInfo{
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{
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ID: "radio",
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Name: "Funkgerät",
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DataPort: 4711,
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BaudRate: 9600,
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DataBits: 8,
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Parity: "none",
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StopBits: 1,
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},
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{
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ID: "rotor",
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Name: "Antennenrotor",
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DataPort: 4712,
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BaudRate: 4800,
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DataBits: 8,
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Parity: "none",
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StopBits: 1,
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},
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})
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_ = transport.WriteMessage(conn, response)
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})
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c, err := client.New(address)
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if err != nil {
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t.Fatalf("client.New() failed: %v", err)
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}
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defer c.Close()
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devices, err := c.GetDevices()
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if err != nil {
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t.Fatalf("GetDevices() failed: %v", err)
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}
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if len(devices) != 2 {
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t.Fatalf("len(devices) = %d, want 2", len(devices))
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}
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if devices[0].ID != "radio" {
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t.Errorf(
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"devices[0].ID = %q, want %q",
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devices[0].ID,
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"radio",
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)
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}
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if devices[0].DataPort != 4711 {
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t.Errorf(
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"devices[0].DataPort = %d, want 4711",
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devices[0].DataPort,
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)
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}
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if devices[1].ID != "rotor" {
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t.Errorf(
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"devices[1].ID = %q, want %q",
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devices[1].ID,
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"rotor",
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)
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}
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if devices[1].DataPort != 4712 {
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t.Errorf(
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"devices[1].DataPort = %d, want 4712",
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devices[1].DataPort,
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)
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}
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}
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