add e2e tests for v1 config (#3608)

test/e2e/v1/basic/xtcp.go

@@ -0,0 +1,53 @@
+package basic
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/onsi/ginkgo/v2"
+
+	"github.com/fatedier/frp/test/e2e/framework"
+	"github.com/fatedier/frp/test/e2e/framework/consts"
+	"github.com/fatedier/frp/test/e2e/pkg/port"
+	"github.com/fatedier/frp/test/e2e/pkg/request"
+)
+
+var _ = ginkgo.Describe("[Feature: XTCP]", func() {
+	f := framework.NewDefaultFramework()
+
+	ginkgo.It("Fallback To STCP", func() {
+		serverConf := consts.DefaultServerConfig
+		clientConf := consts.DefaultClientConfig
+
+		bindPortName := port.GenName("XTCP")
+		clientConf += fmt.Sprintf(`
+			[[proxies]]
+			name = "foo"
+			type = "stcp"
+			localPort = {{ .%s }}
+
+			[[visitors]]
+			name = "foo-visitor"
+			type = "stcp"
+			serverName = "foo"
+			bindPort = -1
+
+			[[visitors]]
+			name = "bar-visitor"
+			type = "xtcp"
+			serverName = "bar"
+			bindPort = {{ .%s }}
+			keepTunnelOpen = true
+			fallbackTo = "foo-visitor"
+			fallbackTimeoutMs = 200
+			`, framework.TCPEchoServerPort, bindPortName)
+
+		f.RunProcesses([]string{serverConf}, []string{clientConf})
+		framework.NewRequestExpect(f).
+			RequestModify(func(r *request.Request) {
+				r.Timeout(time.Second)
+			}).
+			PortName(bindPortName).
+			Ensure()
+	})
+})