Add e2e test case to cover leaseV2Renew and leaseV3Renew

We need to support both v2Renew and v3Renew in 3.6, so we need to
add test cases to verify both of them. Once the v2Renew is removed,
then we can remove all related test case.

tests/e2e/ctl_v3_lease_test.go

@@ -23,13 +23,21 @@ import (
 	"go.etcd.io/etcd/tests/v3/framework/e2e"
 )
 
-func TestCtlV3LeaseKeepAlive(t *testing.T) { testCtl(t, leaseTestKeepAlive) }
+func TestCtlV3LeaseKeepAlive(t *testing.T) {
+	testCtl(t, leaseTestKeepAlive)
+}
+func TestCtlV3LeaseKeepAliveWithLeaseV2Renew(t *testing.T) {
+	testCtl(t, leaseTestKeepAlive, withLeaseV2Renew())
+}
 func TestCtlV3LeaseKeepAliveNoTLS(t *testing.T) {
 	testCtl(t, leaseTestKeepAlive, withCfg(*e2e.NewConfigNoTLS()))
 }
 func TestCtlV3LeaseKeepAliveClientTLS(t *testing.T) {
 	testCtl(t, leaseTestKeepAlive, withCfg(*e2e.NewConfigClientTLS()))
 }
+func TestCtlV3LeaseKeepAliveClientTLSWithLeaseV2Renew(t *testing.T) {
+	testCtl(t, leaseTestKeepAlive, withCfg(*e2e.NewConfigClientTLS()), withLeaseV2Renew())
+}
 func TestCtlV3LeaseKeepAliveClientAutoTLS(t *testing.T) {
 	testCtl(t, leaseTestKeepAlive, withCfg(*e2e.NewConfigClientAutoTLS()))
 }

tests/e2e/ctl_v3_test.go

@@ -142,6 +142,8 @@ type ctlCtx struct {
 
 	initialCorruptCheck bool
 
+	enableLeaseV2Renew bool
+
 	// for compaction
 	compactPhysical bool
 
@@ -182,6 +184,10 @@ func withInitialCorruptCheck() ctlOption {
 	return func(cx *ctlCtx) { cx.initialCorruptCheck = true }
 }
 
+func withLeaseV2Renew() ctlOption {
+	return func(cx *ctlCtx) { cx.enableLeaseV2Renew = true }
+}
+
 func withCorruptFunc(f func(string) error) ctlOption {
 	return func(cx *ctlCtx) { cx.corruptFunc = f }
 }
@@ -226,6 +232,9 @@ func testCtlWithOffline(t *testing.T, testFunc func(ctlCtx), testOfflineFunc fun
 	if ret.initialCorruptCheck {
 		ret.cfg.InitialCorruptCheck = ret.initialCorruptCheck
 	}
+	if ret.enableLeaseV2Renew {
+		ret.cfg.EnableLeaseV2Renew = ret.enableLeaseV2Renew
+	}
 	if testOfflineFunc != nil {
 		ret.cfg.KeepDataDir = true
 	}

tests/framework/e2e/cluster.go

@@ -166,6 +166,7 @@ type EtcdProcessClusterConfig struct {
 	NoStrictReconfig    bool
 	EnableV2            bool
 	InitialCorruptCheck bool
+	EnableLeaseV2Renew  bool
 	AuthTokenOpts       string
 	V2deprecation       string
 
@@ -314,6 +315,9 @@ func (cfg *EtcdProcessClusterConfig) EtcdServerProcessConfigs(tb testing.TB) []*
 		if cfg.InitialCorruptCheck {
 			args = append(args, "--experimental-initial-corrupt-check")
 		}
+		if cfg.EnableLeaseV2Renew {
+			args = append(args, "--experimental-enable-lease-v2-renew")
+		}
 		var murl string
 		if cfg.MetricsURLScheme != "" {
 			murl = (&url.URL{