test: fix unit tests and add build stats

Signed-off-by: Zespre Chang <zespre.chang@suse.com>

README.md

@@ -1,5 +1,8 @@
 # vm-dhcp-controller
 
+[![Build Status](https://drone-publish.rancher.io/api/badges/harvester/vm-dhcp-controller/status.svg)](https://drone-publish.rancher.io/harvester/vm-dhcp-controller)
+[![Releases](https://img.shields.io/github/release/harvester/vm-dhcp-controller.svg)](https://github.com/harvester/vm-dhcp-controller/releases)
+
 A managed DHCP service for virtual machines running on Harvester, ported from [joeyloman/kubevirt-ip-helper](https://github.com/joeyloman/kubevirt-ip-helper) and its subsidiary projects.
 
 ## Features
@@ -38,7 +41,7 @@ How the controller and agents collaborate to provide DHCP services for virtual m
 
 ## Develop
 
-To generate the controllers/clientsets:
+To generate the crds/controllers/clientsets:
 
 ```
 go generate

pkg/controller/ippool/controller_test.go

@@ -511,7 +511,7 @@ func TestHandler_DeployAgent(t *testing.T) {
 			Label(clusterNetworkLabelKey, testClusterNetwork).Build()
 		givenPod, _ := prepareAgentPod(
 			NewIPPoolBuilder(testIPPoolNamespace, testIPPoolName).
-				ServerIP(testServerIP).
+				ServerIP(testServerIP1).
 				CIDR(testCIDR).
 				NetworkName(testNetworkName).Build(),
 			false,
@@ -561,15 +561,15 @@ func TestHandler_DeployAgent(t *testing.T) {
 	t.Run("agent pod upgrade held back", func(t *testing.T) {
 		givenIPPool := newTestIPPoolBuilder().
 			Annotation(holdIPPoolAgentUpgradeAnnotationKey, "true").
-			ServerIP(testServerIP).
+			ServerIP(testServerIP1).
 			CIDR(testCIDR).
 			NetworkName(testNetworkName).
 			AgentPodRef(testPodNamespace, testPodName, testImage, "").Build()
 		givenNAD := newTestNetworkAttachmentDefinitionBuilder().
 			Label(clusterNetworkLabelKey, testClusterNetwork).Build()
 		givenPod, _ := prepareAgentPod(
 			NewIPPoolBuilder(testIPPoolNamespace, testIPPoolName).
-				ServerIP(testServerIP).
+				ServerIP(testServerIP1).
 				CIDR(testCIDR).
 				NetworkName(testNetworkName).Build(),
 			false,