Merge pull request #52403 from m1093782566/ut-ipvs-config

Automatic merge from submit-queue (batch tested with PRs 52355, 52537, 52551, 52403, 50673). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..

Clear TODO: Adding UT for loading ipvs config

**What this PR does / why we need it**:

Clear TODO: Adding UT for loading ipvs config

**Which issue this PR fixes**: 

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

cmd/kube-proxy/app/server_test.go

@@ -292,7 +292,7 @@ ipvs:
   syncPeriod: 60s
 kind: KubeProxyConfiguration
 metricsBindAddress: "%s"
-mode: "iptables"
+mode: "%s"
 oomScoreAdj: 17
 portRange: "2-7"
 resourceContainer: /foo
@@ -301,20 +301,23 @@ udpTimeoutMilliseconds: 123ms
 
 	testCases := []struct {
 		name               string
+		mode               string
 		bindAddress        string
 		clusterCIDR        string
 		healthzBindAddress string
 		metricsBindAddress string
 	}{
 		{
-			name:               "IPv4 config",
+			name:               "iptables mode, IPv4 config",
+			mode:               "iptables",
 			bindAddress:        "9.8.7.6",
 			clusterCIDR:        "1.2.3.0/24",
 			healthzBindAddress: "1.2.3.4:12345",
 			metricsBindAddress: "2.3.4.5:23456",
 		},
 		{
-			name:               "IPv6 config",
+			name:               "ipvs mode, IPv6 config",
+			mode:               "ipvs",
 			bindAddress:        "2001:db8::1",
 			clusterCIDR:        "fd00:1::0/64",
 			healthzBindAddress: "[fd00:1::5]:12345",
@@ -355,12 +358,11 @@ udpTimeoutMilliseconds: 123ms
 				SyncPeriod:    metav1.Duration{Duration: 60 * time.Second},
 			},
 			MetricsBindAddress: tc.metricsBindAddress,
-			Mode:               "iptables",
-			// TODO: IPVS
-			OOMScoreAdj:       utilpointer.Int32Ptr(17),
-			PortRange:         "2-7",
-			ResourceContainer: "/foo",
-			UDPIdleTimeout:    metav1.Duration{Duration: 123 * time.Millisecond},
+			Mode:               componentconfig.ProxyMode(tc.mode),
+			OOMScoreAdj:        utilpointer.Int32Ptr(17),
+			PortRange:          "2-7",
+			ResourceContainer:  "/foo",
+			UDPIdleTimeout:     metav1.Duration{Duration: 123 * time.Millisecond},
 		}
 
 		options, err := NewOptions()
@@ -368,7 +370,7 @@ udpTimeoutMilliseconds: 123ms
 
 		yaml := fmt.Sprintf(
 			yamlTemplate, tc.bindAddress, tc.clusterCIDR,
-			tc.healthzBindAddress, tc.metricsBindAddress)
+			tc.healthzBindAddress, tc.metricsBindAddress, tc.mode)
 		config, err := options.loadConfig([]byte(yaml))
 		assert.NoError(t, err, "unexpected error for %s: %v", tc.name, err)
 		if !reflect.DeepEqual(expected, config) {