add e2e tests for v1 config (#3608)

test/e2e/legacy/features/chaos.go

@@ -0,0 +1,65 @@
+package features
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/onsi/ginkgo/v2"
+
+	"github.com/fatedier/frp/test/e2e/framework"
+)
+
+var _ = ginkgo.Describe("[Feature: Chaos]", func() {
+	f := framework.NewDefaultFramework()
+
+	ginkgo.It("reconnect after frps restart", func() {
+		serverPort := f.AllocPort()
+		serverConfigPath := f.GenerateConfigFile(fmt.Sprintf(`
+		[common]
+		bind_addr = 0.0.0.0
+		bind_port = %d
+		`, serverPort))
+
+		remotePort := f.AllocPort()
+		clientConfigPath := f.GenerateConfigFile(fmt.Sprintf(`
+		[common]
+		server_port = %d
+		log_level = trace
+
+		[tcp]
+		type = tcp
+		local_port = %d
+		remote_port = %d
+		`, serverPort, f.PortByName(framework.TCPEchoServerPort), remotePort))
+
+		// 1. start frps and frpc, expect request success
+		ps, _, err := f.RunFrps("-c", serverConfigPath)
+		framework.ExpectNoError(err)
+
+		pc, _, err := f.RunFrpc("-c", clientConfigPath)
+		framework.ExpectNoError(err)
+		framework.NewRequestExpect(f).Port(remotePort).Ensure()
+
+		// 2. stop frps, expect request failed
+		_ = ps.Stop()
+		time.Sleep(200 * time.Millisecond)
+		framework.NewRequestExpect(f).Port(remotePort).ExpectError(true).Ensure()
+
+		// 3. restart frps, expect request success
+		_, _, err = f.RunFrps("-c", serverConfigPath)
+		framework.ExpectNoError(err)
+		time.Sleep(2 * time.Second)
+		framework.NewRequestExpect(f).Port(remotePort).Ensure()
+
+		// 4. stop frpc, expect request failed
+		_ = pc.Stop()
+		time.Sleep(200 * time.Millisecond)
+		framework.NewRequestExpect(f).Port(remotePort).ExpectError(true).Ensure()
+
+		// 5. restart frpc, expect request success
+		_, _, err = f.RunFrpc("-c", clientConfigPath)
+		framework.ExpectNoError(err)
+		time.Sleep(time.Second)
+		framework.NewRequestExpect(f).Port(remotePort).Ensure()
+	})
+})