health: add more ci cases and fix bugs

tests/mock/echo_server.go

@@ -10,40 +10,48 @@ import (
 	frpNet "github.com/fatedier/frp/utils/net"
 )
 
-func StartTcpEchoServer(port int) {
-	l, err := frpNet.ListenTcp("127.0.0.1", port)
-	if err != nil {
-		fmt.Printf("echo server listen error: %v\n", err)
-		return
+type EchoServer struct {
+	l frpNet.Listener
+
+	port        int
+	repeatedNum int
+	specifyStr  string
+}
+
+func NewEchoServer(port int, repeatedNum int, specifyStr string) *EchoServer {
+	if repeatedNum <= 0 {
+		repeatedNum = 1
 	}
-
-	for {
-		c, err := l.Accept()
-		if err != nil {
-			fmt.Printf("echo server accept error: %v\n", err)
-			return
-		}
-
-		go echoWorker(c)
+	return &EchoServer{
+		port:        port,
+		repeatedNum: repeatedNum,
+		specifyStr:  specifyStr,
 	}
 }
 
-func StartTcpEchoServer2(port int) {
-	l, err := frpNet.ListenTcp("127.0.0.1", port)
+func (es *EchoServer) Start() error {
+	l, err := frpNet.ListenTcp("127.0.0.1", es.port)
 	if err != nil {
-		fmt.Printf("echo server2 listen error: %v\n", err)
-		return
+		fmt.Printf("echo server listen error: %v\n", err)
+		return err
 	}
+	es.l = l
 
-	for {
-		c, err := l.Accept()
-		if err != nil {
-			fmt.Printf("echo server2 accept error: %v\n", err)
-			return
+	go func() {
+		for {
+			c, err := l.Accept()
+			if err != nil {
+				return
+			}
+
+			go echoWorker(c, es.repeatedNum, es.specifyStr)
 		}
+	}()
+	return nil
+}
 
-		go echoWorker2(c)
-	}
+func (es *EchoServer) Stop() {
+	es.l.Close()
 }
 
 func StartUdpEchoServer(port int) {
@@ -60,7 +68,7 @@ func StartUdpEchoServer(port int) {
 			return
 		}
 
-		go echoWorker(c)
+		go echoWorker(c, 1, "")
 	}
 }
 
@@ -80,11 +88,11 @@ func StartUnixDomainServer(unixPath string) {
 			return
 		}
 
-		go echoWorker(c)
+		go echoWorker(c, 1, "")
 	}
 }
 
-func echoWorker(c net.Conn) {
+func echoWorker(c net.Conn, repeatedNum int, specifyStr string) {
 	buf := make([]byte, 2048)
 
 	for {
@@ -99,28 +107,14 @@ func echoWorker(c net.Conn) {
 			}
 		}
 
-		c.Write(buf[:n])
-	}
-}
-
-func echoWorker2(c net.Conn) {
-	buf := make([]byte, 2048)
-
-	for {
-		n, err := c.Read(buf)
-		if err != nil {
-			if err == io.EOF {
-				c.Close()
-				break
-			} else {
-				fmt.Printf("echo server read error: %v\n", err)
-				return
+		if specifyStr != "" {
+			c.Write([]byte(specifyStr))
+		} else {
+			var w []byte
+			for i := 0; i < repeatedNum; i++ {
+				w = append(w, buf[:n]...)
 			}
+			c.Write(w)
 		}
-
-		var w []byte
-		w = append(w, buf[:n]...)
-		w = append(w, buf[:n]...)
-		c.Write(w)
 	}
 }