Repository: spidernet-io/spiderpool
Pull request #1354 (2023-02-22 11:48:10)

test: Add unit tests for SpiderSubnet controller
Signed-off-by: iiiceoo <ziqian.xue@daocloud.io>

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[![Bug](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/bug-16px.png 'Bug')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [0 Bugs](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG)  
[![Vulnerability](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/vulnerability-16px.png 'Vulnerability')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [0 Vulnerabilities](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY)  
[![Security Hotspot](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/security_hotspot-16px.png 'Security Hotspot')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [0 Security Hotspots](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT)  
[![Code Smell](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/code_smell-16px.png 'Code Smell')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [2 Code Smells](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL)

[![No Coverage information](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/CoverageChart/NoCoverageInfo-16px.png 'No Coverage information')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354) No Coverage information  
[![12.4%](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/Duplications/20-16px.png '12.4%')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list) [12.4% Duplication](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list)


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[![Bug](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/bug-16px.png 'Bug')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [0 Bugs](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG)  
[![Vulnerability](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/vulnerability-16px.png 'Vulnerability')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [0 Vulnerabilities](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY)  
[![Security Hotspot](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/security_hotspot-16px.png 'Security Hotspot')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [![E](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/E-16px.png 'E')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [9 Security Hotspots](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT)  
[![Code Smell](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/code_smell-16px.png 'Code Smell')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [6 Code Smells](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL)

[![No Coverage information](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/CoverageChart/NoCoverageInfo-16px.png 'No Coverage information')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354) No Coverage information  
[![12.3%](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/Duplications/20-16px.png '12.3%')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list) [12.3% Duplication](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list)


sonarcloud[bot]: SonarCloud Quality Gate failed.&nbsp; &nbsp; [![Quality Gate failed](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/QualityGateBadge/failed-16px.png 'Quality Gate failed')](https://sonarcloud.io/dashboard?id=spidernet-io_spiderpool&pullRequest=1354)

[![Bug](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/bug-16px.png 'Bug')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG) [0 Bugs](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=BUG)  
[![Vulnerability](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/vulnerability-16px.png 'Vulnerability')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY) [0 Vulnerabilities](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=VULNERABILITY)  
[![Security Hotspot](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/security_hotspot-16px.png 'Security Hotspot')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [![E](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/E-16px.png 'E')](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT) [9 Security Hotspots](https://sonarcloud.io/project/security_hotspots?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=SECURITY_HOTSPOT)  
[![Code Smell](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/common/code_smell-16px.png 'Code Smell')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [![A](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/RatingBadge/A-16px.png 'A')](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL) [6 Code Smells](https://sonarcloud.io/project/issues?id=spidernet-io_spiderpool&pullRequest=1354&resolved=false&types=CODE_SMELL)

[![No Coverage information](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/CoverageChart/NoCoverageInfo-16px.png 'No Coverage information')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354) No Coverage information  
[![12.3%](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/Duplications/20-16px.png '12.3%')](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list) [12.3% Duplication](https://sonarcloud.io/component_measures?id=spidernet-io_spiderpool&pullRequest=1354&metric=new_duplicated_lines_density&view=list)


codecov[bot]: # [Codecov](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354?src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io) Report
> Merging [#1354](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354?src=pr&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io) (b375aa1) into [main](https://codecov.io/gh/spidernet-io/spiderpool/commit/555f942853e9ca8bc05938ae3d4947b3f9ecffdf?el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io) (555f942) will **increase** coverage by `3.29%`.
> The diff coverage is `30.00%`.

[![Impacted file tree graph](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354/graphs/tree.svg?width=650&height=150&src=pr&token=YKXY2E4Q8G&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io)](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io)

```diff
@@            Coverage Diff             @@
##             main    #1354      +/-   ##
==========================================
+ Coverage   52.27%   55.57%   +3.29%     
==========================================
  Files          44       44              
  Lines        4490     4497       +7     
==========================================
+ Hits         2347     2499     +152     
+ Misses       2116     1939     -177     
- Partials       27       59      +32     
```

| Flag | Coverage Δ | |
|---|---|---|
| unittests | `55.57% <30.00%> (+3.29%)` | :arrow_up: |

Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io#carryforward-flags-in-the-pull-request-comment) to find out more.

| [Impacted Files](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io) | Coverage Δ | |
|---|---|---|
| [pkg/subnetmanager/subnet\_informer.go](https://codecov.io/gh/spidernet-io/spiderpool/pull/1354?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spidernet-io#diff-cGtnL3N1Ym5ldG1hbmFnZXIvc3VibmV0X2luZm9ybWVyLmdv) | `52.41% <30.00%> (+52.41%)` | :arrow_up: |


Patch:
diff --git a/go.mod b/go.mod
index 367672ce6..b85bff0ba 100644
--- a/go.mod
+++ b/go.mod
@@ -48,6 +48,7 @@ require (
 
 require (
 	github.com/agiledragon/gomonkey/v2 v2.9.0
+	github.com/golang/mock v1.6.0
 	github.com/moby/moby v23.0.1+incompatible
 	github.com/openkruise/kruise-api v1.3.0
 	github.com/prometheus/client_golang v1.14.0
diff --git a/go.sum b/go.sum
index c646ff82f..980454d88 100644
--- a/go.sum
+++ b/go.sum
@@ -269,6 +269,7 @@ github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt
 github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
 github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
 github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3KVu8=
+github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
 github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
diff --git a/pkg/election/mock/lease_election_mock.go b/pkg/election/mock/lease_election_mock.go
new file mode 100644
index 000000000..b76ac9ceb
--- /dev/null
+++ b/pkg/election/mock/lease_election_mock.go
@@ -0,0 +1,67 @@
+// Copyright 2022 Authors of spidernet-io
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by MockGen. DO NOT EDIT.
+// Source: ./lease_election.go
+
+// Package mock_election is a generated GoMock package.
+package mock_election
+
+import (
+	context "context"
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	kubernetes "k8s.io/client-go/kubernetes"
+)
+
+// MockSpiderLeaseElector is a mock of SpiderLeaseElector interface.
+type MockSpiderLeaseElector struct {
+	ctrl     *gomock.Controller
+	recorder *MockSpiderLeaseElectorMockRecorder
+}
+
+// MockSpiderLeaseElectorMockRecorder is the mock recorder for MockSpiderLeaseElector.
+type MockSpiderLeaseElectorMockRecorder struct {
+	mock *MockSpiderLeaseElector
+}
+
+// NewMockSpiderLeaseElector creates a new mock instance.
+func NewMockSpiderLeaseElector(ctrl *gomock.Controller) *MockSpiderLeaseElector {
+	mock := &MockSpiderLeaseElector{ctrl: ctrl}
+	mock.recorder = &MockSpiderLeaseElectorMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockSpiderLeaseElector) EXPECT() *MockSpiderLeaseElectorMockRecorder {
+	return m.recorder
+}
+
+// IsElected mocks base method.
+func (m *MockSpiderLeaseElector) IsElected() bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "IsElected")
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// IsElected indicates an expected call of IsElected.
+func (mr *MockSpiderLeaseElectorMockRecorder) IsElected() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IsElected", reflect.TypeOf((*MockSpiderLeaseElector)(nil).IsElected))
+}
+
+// Run mocks base method.
+func (m *MockSpiderLeaseElector) Run(ctx context.Context, clientSet kubernetes.Interface) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Run", ctx, clientSet)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Run indicates an expected call of Run.
+func (mr *MockSpiderLeaseElectorMockRecorder) Run(ctx, clientSet interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Run", reflect.TypeOf((*MockSpiderLeaseElector)(nil).Run), ctx, clientSet)
+}
diff --git a/pkg/subnetmanager/subnet_informer.go b/pkg/subnetmanager/subnet_informer.go
index 663fc439b..8f3568960 100644
--- a/pkg/subnetmanager/subnet_informer.go
+++ b/pkg/subnetmanager/subnet_informer.go
@@ -14,6 +14,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/types"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/client-go/tools/cache"
@@ -48,6 +49,9 @@ type SubnetController struct {
 	SubnetsLister listers.SpiderSubnetLister
 	IPPoolsLister listers.SpiderIPPoolLister
 
+	SubnetIndexer cache.Indexer
+	IPPoolIndexer cache.Indexer
+
 	SubnetsSynced cache.InformerSynced
 	IPPoolsSynced cache.InformerSynced
 
@@ -122,6 +126,8 @@ func (sc *SubnetController) SetupInformer(ctx context.Context, client clientset.
 func (sc *SubnetController) addEventHandlers(subnetInformer informers.SpiderSubnetInformer, ipPoolInformer informers.SpiderIPPoolInformer) {
 	sc.SubnetsLister = subnetInformer.Lister()
 	sc.IPPoolsLister = ipPoolInformer.Lister()
+	sc.SubnetIndexer = subnetInformer.Informer().GetIndexer()
+	sc.IPPoolIndexer = ipPoolInformer.Informer().GetIndexer()
 	sc.SubnetsSynced = subnetInformer.Informer().HasSynced
 	sc.IPPoolsSynced = ipPoolInformer.Informer().HasSynced
 	sc.Workqueue = workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), constant.SpiderSubnetKind)
@@ -259,8 +265,8 @@ func (sc *SubnetController) syncHandler(ctx context.Context, subnetName string)
 	}
 
 	subnetCopy := subnet.DeepCopy()
-	if err := sc.syncMetadate(ctx, subnetCopy); err != nil {
-		return fmt.Errorf("failed to sync metadate of Subnet: %v", err)
+	if err := sc.syncMetadata(ctx, subnetCopy); err != nil {
+		return fmt.Errorf("failed to sync metadata of Subnet: %v", err)
 	}
 
 	if err := sc.syncControllerSubnet(ctx, subnetCopy); err != nil {
@@ -280,7 +286,7 @@ func (sc *SubnetController) syncHandler(ctx context.Context, subnetName string)
 	return nil
 }
 
-func (sc *SubnetController) syncMetadate(ctx context.Context, subnet *spiderpoolv1.SpiderSubnet) error {
+func (sc *SubnetController) syncMetadata(ctx context.Context, subnet *spiderpoolv1.SpiderSubnet) error {
 	cidr, err := spiderpoolip.CIDRToLabelValue(*subnet.Spec.IPVersion, subnet.Spec.Subnet)
 	if err != nil {
 		return fmt.Errorf("failed to parse CIDR %s as a valid label value: %v", subnet.Spec.Subnet, err)
@@ -362,6 +368,9 @@ func (sc *SubnetController) syncControlledIPPoolIPs(ctx context.Context, subnet
 		if err != nil {
 			return err
 		}
+		if len(poolTotalIPs) == 0 {
+			continue
+		}
 
 		validIPs := spiderpoolip.IPsIntersectionSet(subnetTotalIPs, poolTotalIPs, false)
 		tmpCount += len(validIPs)
@@ -372,23 +381,31 @@ func (sc *SubnetController) syncControlledIPPoolIPs(ctx context.Context, subnet
 		}
 		controlledIPPools[pool.Name] = spiderpoolv1.PoolIPPreAllocation{IPs: ranges}
 	}
-	subnet.Status.ControlledIPPools = controlledIPPools
+
+	sync := false
+	if !reflect.DeepEqual(controlledIPPools, subnet.Status.ControlledIPPools) {
+		allocatedIPCount := int64(tmpCount)
+		subnet.Status.AllocatedIPCount = &allocatedIPCount
+		subnet.Status.ControlledIPPools = controlledIPPools
+		sync = true
+	}
 
 	// Update the count of total IP addresses.
 	totalIPCount := int64(len(subnetTotalIPs))
-	subnet.Status.TotalIPCount = &totalIPCount
+	if !reflect.DeepEqual(&totalIPCount, subnet.Status.TotalIPCount) {
+		subnet.Status.TotalIPCount = &totalIPCount
+		sync = true
+	}
 
-	// Update the count of pre-allocated IP addresses.
-	allocatedIPCount := int64(tmpCount)
-	subnet.Status.AllocatedIPCount = &allocatedIPCount
+	if sync {
+		if err := sc.Status().Update(ctx, subnet); err != nil {
+			return err
+		}
 
-	if err := sc.Status().Update(ctx, subnet); err != nil {
-		return err
+		// Record the metric of how many IPPools the Subnet has.
+		metric.SubnetPoolCounts.Record(int64(len(subnet.Status.ControlledIPPools)), attribute.String(constant.SpiderSubnetKind, subnet.Name))
 	}
 
-	// Record the metric of how many IPPools the Subnet has.
-	metric.SubnetPoolCounts.Record(int64(len(subnet.Status.ControlledIPPools)), attribute.String(constant.SpiderSubnetKind, subnet.Name))
-
 	return nil
 }
 
@@ -403,6 +420,10 @@ func (sc *SubnetController) removeFinalizer(ctx context.Context, subnet *spiderp
 		); err != nil {
 			return err
 		}
+
+		if err := sc.Get(ctx, types.NamespacedName{Name: subnet.Name}, subnet); err != nil {
+			return err
+		}
 	}
 
 	if !controllerutil.ContainsFinalizer(subnet, constant.SpiderFinalizer) {
diff --git a/vendor/github.com/golang/mock/AUTHORS b/vendor/github.com/golang/mock/AUTHORS
new file mode 100644
index 000000000..660b8ccc8
--- /dev/null
+++ b/vendor/github.com/golang/mock/AUTHORS
@@ -0,0 +1,12 @@
+# This is the official list of GoMock authors for copyright purposes.
+# This file is distinct from the CONTRIBUTORS files.
+# See the latter for an explanation.
+
+# Names should be added to this file as
+#	Name or Organization <email address>
+# The email address is not required for organizations.
+
+# Please keep the list sorted.
+
+Alex Reece <awreece@gmail.com>
+Google Inc.
diff --git a/vendor/github.com/golang/mock/CONTRIBUTORS b/vendor/github.com/golang/mock/CONTRIBUTORS
new file mode 100644
index 000000000..def849cab
--- /dev/null
+++ b/vendor/github.com/golang/mock/CONTRIBUTORS
@@ -0,0 +1,37 @@
+# This is the official list of people who can contribute (and typically
+# have contributed) code to the gomock repository.
+# The AUTHORS file lists the copyright holders; this file
+# lists people.  For example, Google employees are listed here
+# but not in AUTHORS, because Google holds the copyright.
+#
+# The submission process automatically checks to make sure
+# that people submitting code are listed in this file (by email address).
+#
+# Names should be added to this file only after verifying that
+# the individual or the individual's organization has agreed to
+# the appropriate Contributor License Agreement, found here:
+#
+#     http://code.google.com/legal/individual-cla-v1.0.html
+#     http://code.google.com/legal/corporate-cla-v1.0.html
+#
+# The agreement for individuals can be filled out on the web.
+#
+# When adding J Random Contributor's name to this file,
+# either J's name or J's organization's name should be
+# added to the AUTHORS file, depending on whether the
+# individual or corporate CLA was used.
+
+# Names should be added to this file like so:
+#     Name <email address>
+#
+# An entry with two email addresses specifies that the
+# first address should be used in the submit logs and
+# that the second address should be recognized as the
+# same person when interacting with Rietveld.
+
+# Please keep the list sorted.
+
+Aaron Jacobs <jacobsa@google.com> <aaronjjacobs@gmail.com>
+Alex Reece <awreece@gmail.com>
+David Symonds <dsymonds@golang.org>
+Ryan Barrett <ryanb@google.com>
diff --git a/vendor/github.com/golang/mock/LICENSE b/vendor/github.com/golang/mock/LICENSE
new file mode 100644
index 000000000..d64569567
--- /dev/null
+++ b/vendor/github.com/golang/mock/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      direction or management of such entity, whether by contract or
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+          notices within Derivative Works that You distribute, alongside
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/vendor/github.com/golang/mock/gomock/call.go b/vendor/github.com/golang/mock/gomock/call.go
new file mode 100644
index 000000000..13c9f44b1
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/call.go
@@ -0,0 +1,445 @@
+// Copyright 2010 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gomock
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// Call represents an expected call to a mock.
+type Call struct {
+	t TestHelper // for triggering test failures on invalid call setup
+
+	receiver   interface{}  // the receiver of the method call
+	method     string       // the name of the method
+	methodType reflect.Type // the type of the method
+	args       []Matcher    // the args
+	origin     string       // file and line number of call setup
+
+	preReqs []*Call // prerequisite calls
+
+	// Expectations
+	minCalls, maxCalls int
+
+	numCalls int // actual number made
+
+	// actions are called when this Call is called. Each action gets the args and
+	// can set the return values by returning a non-nil slice. Actions run in the
+	// order they are created.
+	actions []func([]interface{}) []interface{}
+}
+
+// newCall creates a *Call. It requires the method type in order to support
+// unexported methods.
+func newCall(t TestHelper, receiver interface{}, method string, methodType reflect.Type, args ...interface{}) *Call {
+	t.Helper()
+
+	// TODO: check arity, types.
+	mArgs := make([]Matcher, len(args))
+	for i, arg := range args {
+		if m, ok := arg.(Matcher); ok {
+			mArgs[i] = m
+		} else if arg == nil {
+			// Handle nil specially so that passing a nil interface value
+			// will match the typed nils of concrete args.
+			mArgs[i] = Nil()
+		} else {
+			mArgs[i] = Eq(arg)
+		}
+	}
+
+	// callerInfo's skip should be updated if the number of calls between the user's test
+	// and this line changes, i.e. this code is wrapped in another anonymous function.
+	// 0 is us, 1 is RecordCallWithMethodType(), 2 is the generated recorder, and 3 is the user's test.
+	origin := callerInfo(3)
+	actions := []func([]interface{}) []interface{}{func([]interface{}) []interface{} {
+		// Synthesize the zero value for each of the return args' types.
+		rets := make([]interface{}, methodType.NumOut())
+		for i := 0; i < methodType.NumOut(); i++ {
+			rets[i] = reflect.Zero(methodType.Out(i)).Interface()
+		}
+		return rets
+	}}
+	return &Call{t: t, receiver: receiver, method: method, methodType: methodType,
+		args: mArgs, origin: origin, minCalls: 1, maxCalls: 1, actions: actions}
+}
+
+// AnyTimes allows the expectation to be called 0 or more times
+func (c *Call) AnyTimes() *Call {
+	c.minCalls, c.maxCalls = 0, 1e8 // close enough to infinity
+	return c
+}
+
+// MinTimes requires the call to occur at least n times. If AnyTimes or MaxTimes have not been called or if MaxTimes
+// was previously called with 1, MinTimes also sets the maximum number of calls to infinity.
+func (c *Call) MinTimes(n int) *Call {
+	c.minCalls = n
+	if c.maxCalls == 1 {
+		c.maxCalls = 1e8
+	}
+	return c
+}
+
+// MaxTimes limits the number of calls to n times. If AnyTimes or MinTimes have not been called or if MinTimes was
+// previously called with 1, MaxTimes also sets the minimum number of calls to 0.
+func (c *Call) MaxTimes(n int) *Call {
+	c.maxCalls = n
+	if c.minCalls == 1 {
+		c.minCalls = 0
+	}
+	return c
+}
+
+// DoAndReturn declares the action to run when the call is matched.
+// The return values from this function are returned by the mocked function.
+// It takes an interface{} argument to support n-arity functions.
+func (c *Call) DoAndReturn(f interface{}) *Call {
+	// TODO: Check arity and types here, rather than dying badly elsewhere.
+	v := reflect.ValueOf(f)
+
+	c.addAction(func(args []interface{}) []interface{} {
+		c.t.Helper()
+		vArgs := make([]reflect.Value, len(args))
+		ft := v.Type()
+		if c.methodType.NumIn() != ft.NumIn() {
+			c.t.Fatalf("wrong number of arguments in DoAndReturn func for %T.%v: got %d, want %d [%s]",
+				c.receiver, c.method, ft.NumIn(), c.methodType.NumIn(), c.origin)
+			return nil
+		}
+		for i := 0; i < len(args); i++ {
+			if args[i] != nil {
+				vArgs[i] = reflect.ValueOf(args[i])
+			} else {
+				// Use the zero value for the arg.
+				vArgs[i] = reflect.Zero(ft.In(i))
+			}
+		}
+		vRets := v.Call(vArgs)
+		rets := make([]interface{}, len(vRets))
+		for i, ret := range vRets {
+			rets[i] = ret.Interface()
+		}
+		return rets
+	})
+	return c
+}
+
+// Do declares the action to run when the call is matched. The function's
+// return values are ignored to retain backward compatibility. To use the
+// return values call DoAndReturn.
+// It takes an interface{} argument to support n-arity functions.
+func (c *Call) Do(f interface{}) *Call {
+	// TODO: Check arity and types here, rather than dying badly elsewhere.
+	v := reflect.ValueOf(f)
+
+	c.addAction(func(args []interface{}) []interface{} {
+		c.t.Helper()
+		if c.methodType.NumIn() != v.Type().NumIn() {
+			c.t.Fatalf("wrong number of arguments in Do func for %T.%v: got %d, want %d [%s]",
+				c.receiver, c.method, v.Type().NumIn(), c.methodType.NumIn(), c.origin)
+			return nil
+		}
+		vArgs := make([]reflect.Value, len(args))
+		ft := v.Type()
+		for i := 0; i < len(args); i++ {
+			if args[i] != nil {
+				vArgs[i] = reflect.ValueOf(args[i])
+			} else {
+				// Use the zero value for the arg.
+				vArgs[i] = reflect.Zero(ft.In(i))
+			}
+		}
+		v.Call(vArgs)
+		return nil
+	})
+	return c
+}
+
+// Return declares the values to be returned by the mocked function call.
+func (c *Call) Return(rets ...interface{}) *Call {
+	c.t.Helper()
+
+	mt := c.methodType
+	if len(rets) != mt.NumOut() {
+		c.t.Fatalf("wrong number of arguments to Return for %T.%v: got %d, want %d [%s]",
+			c.receiver, c.method, len(rets), mt.NumOut(), c.origin)
+	}
+	for i, ret := range rets {
+		if got, want := reflect.TypeOf(ret), mt.Out(i); got == want {
+			// Identical types; nothing to do.
+		} else if got == nil {
+			// Nil needs special handling.
+			switch want.Kind() {
+			case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+				// ok
+			default:
+				c.t.Fatalf("argument %d to Return for %T.%v is nil, but %v is not nillable [%s]",
+					i, c.receiver, c.method, want, c.origin)
+			}
+		} else if got.AssignableTo(want) {
+			// Assignable type relation. Make the assignment now so that the generated code
+			// can return the values with a type assertion.
+			v := reflect.New(want).Elem()
+			v.Set(reflect.ValueOf(ret))
+			rets[i] = v.Interface()
+		} else {
+			c.t.Fatalf("wrong type of argument %d to Return for %T.%v: %v is not assignable to %v [%s]",
+				i, c.receiver, c.method, got, want, c.origin)
+		}
+	}
+
+	c.addAction(func([]interface{}) []interface{} {
+		return rets
+	})
+
+	return c
+}
+
+// Times declares the exact number of times a function call is expected to be executed.
+func (c *Call) Times(n int) *Call {
+	c.minCalls, c.maxCalls = n, n
+	return c
+}
+
+// SetArg declares an action that will set the nth argument's value,
+// indirected through a pointer. Or, in the case of a slice, SetArg
+// will copy value's elements into the nth argument.
+func (c *Call) SetArg(n int, value interface{}) *Call {
+	c.t.Helper()
+
+	mt := c.methodType
+	// TODO: This will break on variadic methods.
+	// We will need to check those at invocation time.
+	if n < 0 || n >= mt.NumIn() {
+		c.t.Fatalf("SetArg(%d, ...) called for a method with %d args [%s]",
+			n, mt.NumIn(), c.origin)
+	}
+	// Permit setting argument through an interface.
+	// In the interface case, we don't (nay, can't) check the type here.
+	at := mt.In(n)
+	switch at.Kind() {
+	case reflect.Ptr:
+		dt := at.Elem()
+		if vt := reflect.TypeOf(value); !vt.AssignableTo(dt) {
+			c.t.Fatalf("SetArg(%d, ...) argument is a %v, not assignable to %v [%s]",
+				n, vt, dt, c.origin)
+		}
+	case reflect.Interface:
+		// nothing to do
+	case reflect.Slice:
+		// nothing to do
+	default:
+		c.t.Fatalf("SetArg(%d, ...) referring to argument of non-pointer non-interface non-slice type %v [%s]",
+			n, at, c.origin)
+	}
+
+	c.addAction(func(args []interface{}) []interface{} {
+		v := reflect.ValueOf(value)
+		switch reflect.TypeOf(args[n]).Kind() {
+		case reflect.Slice:
+			setSlice(args[n], v)
+		default:
+			reflect.ValueOf(args[n]).Elem().Set(v)
+		}
+		return nil
+	})
+	return c
+}
+
+// isPreReq returns true if other is a direct or indirect prerequisite to c.
+func (c *Call) isPreReq(other *Call) bool {
+	for _, preReq := range c.preReqs {
+		if other == preReq || preReq.isPreReq(other) {
+			return true
+		}
+	}
+	return false
+}
+
+// After declares that the call may only match after preReq has been exhausted.
+func (c *Call) After(preReq *Call) *Call {
+	c.t.Helper()
+
+	if c == preReq {
+		c.t.Fatalf("A call isn't allowed to be its own prerequisite")
+	}
+	if preReq.isPreReq(c) {
+		c.t.Fatalf("Loop in call order: %v is a prerequisite to %v (possibly indirectly).", c, preReq)
+	}
+
+	c.preReqs = append(c.preReqs, preReq)
+	return c
+}
+
+// Returns true if the minimum number of calls have been made.
+func (c *Call) satisfied() bool {
+	return c.numCalls >= c.minCalls
+}
+
+// Returns true if the maximum number of calls have been made.
+func (c *Call) exhausted() bool {
+	return c.numCalls >= c.maxCalls
+}
+
+func (c *Call) String() string {
+	args := make([]string, len(c.args))
+	for i, arg := range c.args {
+		args[i] = arg.String()
+	}
+	arguments := strings.Join(args, ", ")
+	return fmt.Sprintf("%T.%v(%s) %s", c.receiver, c.method, arguments, c.origin)
+}
+
+// Tests if the given call matches the expected call.
+// If yes, returns nil. If no, returns error with message explaining why it does not match.
+func (c *Call) matches(args []interface{}) error {
+	if !c.methodType.IsVariadic() {
+		if len(args) != len(c.args) {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: %d",
+				c.origin, len(args), len(c.args))
+		}
+
+		for i, m := range c.args {
+			if !m.Matches(args[i]) {
+				return fmt.Errorf(
+					"expected call at %s doesn't match the argument at index %d.\nGot: %v\nWant: %v",
+					c.origin, i, formatGottenArg(m, args[i]), m,
+				)
+			}
+		}
+	} else {
+		if len(c.args) < c.methodType.NumIn()-1 {
+			return fmt.Errorf("expected call at %s has the wrong number of matchers. Got: %d, want: %d",
+				c.origin, len(c.args), c.methodType.NumIn()-1)
+		}
+		if len(c.args) != c.methodType.NumIn() && len(args) != len(c.args) {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: %d",
+				c.origin, len(args), len(c.args))
+		}
+		if len(args) < len(c.args)-1 {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: greater than or equal to %d",
+				c.origin, len(args), len(c.args)-1)
+		}
+
+		for i, m := range c.args {
+			if i < c.methodType.NumIn()-1 {
+				// Non-variadic args
+				if !m.Matches(args[i]) {
+					return fmt.Errorf("expected call at %s doesn't match the argument at index %s.\nGot: %v\nWant: %v",
+						c.origin, strconv.Itoa(i), formatGottenArg(m, args[i]), m)
+				}
+				continue
+			}
+			// The last arg has a possibility of a variadic argument, so let it branch
+
+			// sample: Foo(a int, b int, c ...int)
+			if i < len(c.args) && i < len(args) {
+				if m.Matches(args[i]) {
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, gomock.Any())
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, someSliceMatcher)
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, matcherC)
+					// Got Foo(a, b) want Foo(matcherA, matcherB)
+					// Got Foo(a, b, c, d) want Foo(matcherA, matcherB, matcherC, matcherD)
+					continue
+				}
+			}
+
+			// The number of actual args don't match the number of matchers,
+			// or the last matcher is a slice and the last arg is not.
+			// If this function still matches it is because the last matcher
+			// matches all the remaining arguments or the lack of any.
+			// Convert the remaining arguments, if any, into a slice of the
+			// expected type.
+			vArgsType := c.methodType.In(c.methodType.NumIn() - 1)
+			vArgs := reflect.MakeSlice(vArgsType, 0, len(args)-i)
+			for _, arg := range args[i:] {
+				vArgs = reflect.Append(vArgs, reflect.ValueOf(arg))
+			}
+			if m.Matches(vArgs.Interface()) {
+				// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, gomock.Any())
+				// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, someSliceMatcher)
+				// Got Foo(a, b) want Foo(matcherA, matcherB, gomock.Any())
+				// Got Foo(a, b) want Foo(matcherA, matcherB, someEmptySliceMatcher)
+				break
+			}
+			// Wrong number of matchers or not match. Fail.
+			// Got Foo(a, b) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c, d) want Foo(matcherA, matcherB, matcherC, matcherD, matcherE)
+			// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c) want Foo(matcherA, matcherB)
+
+			return fmt.Errorf("expected call at %s doesn't match the argument at index %s.\nGot: %v\nWant: %v",
+				c.origin, strconv.Itoa(i), formatGottenArg(m, args[i:]), c.args[i])
+		}
+	}
+
+	// Check that all prerequisite calls have been satisfied.
+	for _, preReqCall := range c.preReqs {
+		if !preReqCall.satisfied() {
+			return fmt.Errorf("expected call at %s doesn't have a prerequisite call satisfied:\n%v\nshould be called before:\n%v",
+				c.origin, preReqCall, c)
+		}
+	}
+
+	// Check that the call is not exhausted.
+	if c.exhausted() {
+		return fmt.Errorf("expected call at %s has already been called the max number of times", c.origin)
+	}
+
+	return nil
+}
+
+// dropPrereqs tells the expected Call to not re-check prerequisite calls any
+// longer, and to return its current set.
+func (c *Call) dropPrereqs() (preReqs []*Call) {
+	preReqs = c.preReqs
+	c.preReqs = nil
+	return
+}
+
+func (c *Call) call() []func([]interface{}) []interface{} {
+	c.numCalls++
+	return c.actions
+}
+
+// InOrder declares that the given calls should occur in order.
+func InOrder(calls ...*Call) {
+	for i := 1; i < len(calls); i++ {
+		calls[i].After(calls[i-1])
+	}
+}
+
+func setSlice(arg interface{}, v reflect.Value) {
+	va := reflect.ValueOf(arg)
+	for i := 0; i < v.Len(); i++ {
+		va.Index(i).Set(v.Index(i))
+	}
+}
+
+func (c *Call) addAction(action func([]interface{}) []interface{}) {
+	c.actions = append(c.actions, action)
+}
+
+func formatGottenArg(m Matcher, arg interface{}) string {
+	got := fmt.Sprintf("%v (%T)", arg, arg)
+	if gs, ok := m.(GotFormatter); ok {
+		got = gs.Got(arg)
+	}
+	return got
+}
diff --git a/vendor/github.com/golang/mock/gomock/callset.go b/vendor/github.com/golang/mock/gomock/callset.go
new file mode 100644
index 000000000..49dba787a
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/callset.go
@@ -0,0 +1,113 @@
+// Copyright 2011 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gomock
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+)
+
+// callSet represents a set of expected calls, indexed by receiver and method
+// name.
+type callSet struct {
+	// Calls that are still expected.
+	expected map[callSetKey][]*Call
+	// Calls that have been exhausted.
+	exhausted map[callSetKey][]*Call
+}
+
+// callSetKey is the key in the maps in callSet
+type callSetKey struct {
+	receiver interface{}
+	fname    string
+}
+
+func newCallSet() *callSet {
+	return &callSet{make(map[callSetKey][]*Call), make(map[callSetKey][]*Call)}
+}
+
+// Add adds a new expected call.
+func (cs callSet) Add(call *Call) {
+	key := callSetKey{call.receiver, call.method}
+	m := cs.expected
+	if call.exhausted() {
+		m = cs.exhausted
+	}
+	m[key] = append(m[key], call)
+}
+
+// Remove removes an expected call.
+func (cs callSet) Remove(call *Call) {
+	key := callSetKey{call.receiver, call.method}
+	calls := cs.expected[key]
+	for i, c := range calls {
+		if c == call {
+			// maintain order for remaining calls
+			cs.expected[key] = append(calls[:i], calls[i+1:]...)
+			cs.exhausted[key] = append(cs.exhausted[key], call)
+			break
+		}
+	}
+}
+
+// FindMatch searches for a matching call. Returns error with explanation message if no call matched.
+func (cs callSet) FindMatch(receiver interface{}, method string, args []interface{}) (*Call, error) {
+	key := callSetKey{receiver, method}
+
+	// Search through the expected calls.
+	expected := cs.expected[key]
+	var callsErrors bytes.Buffer
+	for _, call := range expected {
+		err := call.matches(args)
+		if err != nil {
+			_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
+		} else {
+			return call, nil
+		}
+	}
+
+	// If we haven't found a match then search through the exhausted calls so we
+	// get useful error messages.
+	exhausted := cs.exhausted[key]
+	for _, call := range exhausted {
+		if err := call.matches(args); err != nil {
+			_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
+			continue
+		}
+		_, _ = fmt.Fprintf(
+			&callsErrors, "all expected calls for method %q have been exhausted", method,
+		)
+	}
+
+	if len(expected)+len(exhausted) == 0 {
+		_, _ = fmt.Fprintf(&callsErrors, "there are no expected calls of the method %q for that receiver", method)
+	}
+
+	return nil, errors.New(callsErrors.String())
+}
+
+// Failures returns the calls that are not satisfied.
+func (cs callSet) Failures() []*Call {
+	failures := make([]*Call, 0, len(cs.expected))
+	for _, calls := range cs.expected {
+		for _, call := range calls {
+			if !call.satisfied() {
+				failures = append(failures, call)
+			}
+		}
+	}
+	return failures
+}
diff --git a/vendor/github.com/golang/mock/gomock/controller.go b/vendor/github.com/golang/mock/gomock/controller.go
new file mode 100644
index 000000000..f054200d5
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/controller.go
@@ -0,0 +1,336 @@
+// Copyright 2010 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package gomock is a mock framework for Go.
+//
+// Standard usage:
+//   (1) Define an interface that you wish to mock.
+//         type MyInterface interface {
+//           SomeMethod(x int64, y string)
+//         }
+//   (2) Use mockgen to generate a mock from the interface.
+//   (3) Use the mock in a test:
+//         func TestMyThing(t *testing.T) {
+//           mockCtrl := gomock.NewController(t)
+//           defer mockCtrl.Finish()
+//
+//           mockObj := something.NewMockMyInterface(mockCtrl)
+//           mockObj.EXPECT().SomeMethod(4, "blah")
+//           // pass mockObj to a real object and play with it.
+//         }
+//
+// By default, expected calls are not enforced to run in any particular order.
+// Call order dependency can be enforced by use of InOrder and/or Call.After.
+// Call.After can create more varied call order dependencies, but InOrder is
+// often more convenient.
+//
+// The following examples create equivalent call order dependencies.
+//
+// Example of using Call.After to chain expected call order:
+//
+//     firstCall := mockObj.EXPECT().SomeMethod(1, "first")
+//     secondCall := mockObj.EXPECT().SomeMethod(2, "second").After(firstCall)
+//     mockObj.EXPECT().SomeMethod(3, "third").After(secondCall)
+//
+// Example of using InOrder to declare expected call order:
+//
+//     gomock.InOrder(
+//         mockObj.EXPECT().SomeMethod(1, "first"),
+//         mockObj.EXPECT().SomeMethod(2, "second"),
+//         mockObj.EXPECT().SomeMethod(3, "third"),
+//     )
+package gomock
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"runtime"
+	"sync"
+)
+
+// A TestReporter is something that can be used to report test failures.  It
+// is satisfied by the standard library's *testing.T.
+type TestReporter interface {
+	Errorf(format string, args ...interface{})
+	Fatalf(format string, args ...interface{})
+}
+
+// TestHelper is a TestReporter that has the Helper method.  It is satisfied
+// by the standard library's *testing.T.
+type TestHelper interface {
+	TestReporter
+	Helper()
+}
+
+// cleanuper is used to check if TestHelper also has the `Cleanup` method. A
+// common pattern is to pass in a `*testing.T` to
+// `NewController(t TestReporter)`. In Go 1.14+, `*testing.T` has a cleanup
+// method. This can be utilized to call `Finish()` so the caller of this library
+// does not have to.
+type cleanuper interface {
+	Cleanup(func())
+}
+
+// A Controller represents the top-level control of a mock ecosystem.  It
+// defines the scope and lifetime of mock objects, as well as their
+// expectations.  It is safe to call Controller's methods from multiple
+// goroutines. Each test should create a new Controller and invoke Finish via
+// defer.
+//
+//   func TestFoo(t *testing.T) {
+//     ctrl := gomock.NewController(t)
+//     defer ctrl.Finish()
+//     // ..
+//   }
+//
+//   func TestBar(t *testing.T) {
+//     t.Run("Sub-Test-1", st) {
+//       ctrl := gomock.NewController(st)
+//       defer ctrl.Finish()
+//       // ..
+//     })
+//     t.Run("Sub-Test-2", st) {
+//       ctrl := gomock.NewController(st)
+//       defer ctrl.Finish()
+//       // ..
+//     })
+//   })
+type Controller struct {
+	// T should only be called within a generated mock. It is not intended to
+	// be used in user code and may be changed in future versions. T is the
+	// TestReporter passed in when creating the Controller via NewController.
+	// If the TestReporter does not implement a TestHelper it will be wrapped
+	// with a nopTestHelper.
+	T             TestHelper
+	mu            sync.Mutex
+	expectedCalls *callSet
+	finished      bool
+}
+
+// NewController returns a new Controller. It is the preferred way to create a
+// Controller.
+//
+// New in go1.14+, if you are passing a *testing.T into this function you no
+// longer need to call ctrl.Finish() in your test methods.
+func NewController(t TestReporter) *Controller {
+	h, ok := t.(TestHelper)
+	if !ok {
+		h = &nopTestHelper{t}
+	}
+	ctrl := &Controller{
+		T:             h,
+		expectedCalls: newCallSet(),
+	}
+	if c, ok := isCleanuper(ctrl.T); ok {
+		c.Cleanup(func() {
+			ctrl.T.Helper()
+			ctrl.finish(true, nil)
+		})
+	}
+
+	return ctrl
+}
+
+type cancelReporter struct {
+	t      TestHelper
+	cancel func()
+}
+
+func (r *cancelReporter) Errorf(format string, args ...interface{}) {
+	r.t.Errorf(format, args...)
+}
+func (r *cancelReporter) Fatalf(format string, args ...interface{}) {
+	defer r.cancel()
+	r.t.Fatalf(format, args...)
+}
+
+func (r *cancelReporter) Helper() {
+	r.t.Helper()
+}
+
+// WithContext returns a new Controller and a Context, which is cancelled on any
+// fatal failure.
+func WithContext(ctx context.Context, t TestReporter) (*Controller, context.Context) {
+	h, ok := t.(TestHelper)
+	if !ok {
+		h = &nopTestHelper{t: t}
+	}
+
+	ctx, cancel := context.WithCancel(ctx)
+	return NewController(&cancelReporter{t: h, cancel: cancel}), ctx
+}
+
+type nopTestHelper struct {
+	t TestReporter
+}
+
+func (h *nopTestHelper) Errorf(format string, args ...interface{}) {
+	h.t.Errorf(format, args...)
+}
+func (h *nopTestHelper) Fatalf(format string, args ...interface{}) {
+	h.t.Fatalf(format, args...)
+}
+
+func (h nopTestHelper) Helper() {}
+
+// RecordCall is called by a mock. It should not be called by user code.
+func (ctrl *Controller) RecordCall(receiver interface{}, method string, args ...interface{}) *Call {
+	ctrl.T.Helper()
+
+	recv := reflect.ValueOf(receiver)
+	for i := 0; i < recv.Type().NumMethod(); i++ {
+		if recv.Type().Method(i).Name == method {
+			return ctrl.RecordCallWithMethodType(receiver, method, recv.Method(i).Type(), args...)
+		}
+	}
+	ctrl.T.Fatalf("gomock: failed finding method %s on %T", method, receiver)
+	panic("unreachable")
+}
+
+// RecordCallWithMethodType is called by a mock. It should not be called by user code.
+func (ctrl *Controller) RecordCallWithMethodType(receiver interface{}, method string, methodType reflect.Type, args ...interface{}) *Call {
+	ctrl.T.Helper()
+
+	call := newCall(ctrl.T, receiver, method, methodType, args...)
+
+	ctrl.mu.Lock()
+	defer ctrl.mu.Unlock()
+	ctrl.expectedCalls.Add(call)
+
+	return call
+}
+
+// Call is called by a mock. It should not be called by user code.
+func (ctrl *Controller) Call(receiver interface{}, method string, args ...interface{}) []interface{} {
+	ctrl.T.Helper()
+
+	// Nest this code so we can use defer to make sure the lock is released.
+	actions := func() []func([]interface{}) []interface{} {
+		ctrl.T.Helper()
+		ctrl.mu.Lock()
+		defer ctrl.mu.Unlock()
+
+		expected, err := ctrl.expectedCalls.FindMatch(receiver, method, args)
+		if err != nil {
+			// callerInfo's skip should be updated if the number of calls between the user's test
+			// and this line changes, i.e. this code is wrapped in another anonymous function.
+			// 0 is us, 1 is controller.Call(), 2 is the generated mock, and 3 is the user's test.
+			origin := callerInfo(3)
+			ctrl.T.Fatalf("Unexpected call to %T.%v(%v) at %s because: %s", receiver, method, args, origin, err)
+		}
+
+		// Two things happen here:
+		// * the matching call no longer needs to check prerequite calls,
+		// * and the prerequite calls are no longer expected, so remove them.
+		preReqCalls := expected.dropPrereqs()
+		for _, preReqCall := range preReqCalls {
+			ctrl.expectedCalls.Remove(preReqCall)
+		}
+
+		actions := expected.call()
+		if expected.exhausted() {
+			ctrl.expectedCalls.Remove(expected)
+		}
+		return actions
+	}()
+
+	var rets []interface{}
+	for _, action := range actions {
+		if r := action(args); r != nil {
+			rets = r
+		}
+	}
+
+	return rets
+}
+
+// Finish checks to see if all the methods that were expected to be called
+// were called. It should be invoked for each Controller. It is not idempotent
+// and therefore can only be invoked once.
+//
+// New in go1.14+, if you are passing a *testing.T into NewController function you no
+// longer need to call ctrl.Finish() in your test methods.
+func (ctrl *Controller) Finish() {
+	// If we're currently panicking, probably because this is a deferred call.
+	// This must be recovered in the deferred function.
+	err := recover()
+	ctrl.finish(false, err)
+}
+
+func (ctrl *Controller) finish(cleanup bool, panicErr interface{}) {
+	ctrl.T.Helper()
+
+	ctrl.mu.Lock()
+	defer ctrl.mu.Unlock()
+
+	if ctrl.finished {
+		if _, ok := isCleanuper(ctrl.T); !ok {
+			ctrl.T.Fatalf("Controller.Finish was called more than once. It has to be called exactly once.")
+		}
+		return
+	}
+	ctrl.finished = true
+
+	// Short-circuit, pass through the panic.
+	if panicErr != nil {
+		panic(panicErr)
+	}
+
+	// Check that all remaining expected calls are satisfied.
+	failures := ctrl.expectedCalls.Failures()
+	for _, call := range failures {
+		ctrl.T.Errorf("missing call(s) to %v", call)
+	}
+	if len(failures) != 0 {
+		if !cleanup {
+			ctrl.T.Fatalf("aborting test due to missing call(s)")
+			return
+		}
+		ctrl.T.Errorf("aborting test due to missing call(s)")
+	}
+}
+
+// callerInfo returns the file:line of the call site. skip is the number
+// of stack frames to skip when reporting. 0 is callerInfo's call site.
+func callerInfo(skip int) string {
+	if _, file, line, ok := runtime.Caller(skip + 1); ok {
+		return fmt.Sprintf("%s:%d", file, line)
+	}
+	return "unknown file"
+}
+
+// isCleanuper checks it if t's base TestReporter has a Cleanup method.
+func isCleanuper(t TestReporter) (cleanuper, bool) {
+	tr := unwrapTestReporter(t)
+	c, ok := tr.(cleanuper)
+	return c, ok
+}
+
+// unwrapTestReporter unwraps TestReporter to the base implementation.
+func unwrapTestReporter(t TestReporter) TestReporter {
+	tr := t
+	switch nt := t.(type) {
+	case *cancelReporter:
+		tr = nt.t
+		if h, check := tr.(*nopTestHelper); check {
+			tr = h.t
+		}
+	case *nopTestHelper:
+		tr = nt.t
+	default:
+		// not wrapped
+	}
+	return tr
+}
diff --git a/vendor/github.com/golang/mock/gomock/matchers.go b/vendor/github.com/golang/mock/gomock/matchers.go
new file mode 100644
index 000000000..2822fb2c8
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/matchers.go
@@ -0,0 +1,341 @@
+// Copyright 2010 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gomock
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// A Matcher is a representation of a class of values.
+// It is used to represent the valid or expected arguments to a mocked method.
+type Matcher interface {
+	// Matches returns whether x is a match.
+	Matches(x interface{}) bool
+
+	// String describes what the matcher matches.
+	String() string
+}
+
+// WantFormatter modifies the given Matcher's String() method to the given
+// Stringer. This allows for control on how the "Want" is formatted when
+// printing .
+func WantFormatter(s fmt.Stringer, m Matcher) Matcher {
+	type matcher interface {
+		Matches(x interface{}) bool
+	}
+
+	return struct {
+		matcher
+		fmt.Stringer
+	}{
+		matcher:  m,
+		Stringer: s,
+	}
+}
+
+// StringerFunc type is an adapter to allow the use of ordinary functions as
+// a Stringer. If f is a function with the appropriate signature,
+// StringerFunc(f) is a Stringer that calls f.
+type StringerFunc func() string
+
+// String implements fmt.Stringer.
+func (f StringerFunc) String() string {
+	return f()
+}
+
+// GotFormatter is used to better print failure messages. If a matcher
+// implements GotFormatter, it will use the result from Got when printing
+// the failure message.
+type GotFormatter interface {
+	// Got is invoked with the received value. The result is used when
+	// printing the failure message.
+	Got(got interface{}) string
+}
+
+// GotFormatterFunc type is an adapter to allow the use of ordinary
+// functions as a GotFormatter. If f is a function with the appropriate
+// signature, GotFormatterFunc(f) is a GotFormatter that calls f.
+type GotFormatterFunc func(got interface{}) string
+
+// Got implements GotFormatter.
+func (f GotFormatterFunc) Got(got interface{}) string {
+	return f(got)
+}
+
+// GotFormatterAdapter attaches a GotFormatter to a Matcher.
+func GotFormatterAdapter(s GotFormatter, m Matcher) Matcher {
+	return struct {
+		GotFormatter
+		Matcher
+	}{
+		GotFormatter: s,
+		Matcher:      m,
+	}
+}
+
+type anyMatcher struct{}
+
+func (anyMatcher) Matches(interface{}) bool {
+	return true
+}
+
+func (anyMatcher) String() string {
+	return "is anything"
+}
+
+type eqMatcher struct {
+	x interface{}
+}
+
+func (e eqMatcher) Matches(x interface{}) bool {
+	// In case, some value is nil
+	if e.x == nil || x == nil {
+		return reflect.DeepEqual(e.x, x)
+	}
+
+	// Check if types assignable and convert them to common type
+	x1Val := reflect.ValueOf(e.x)
+	x2Val := reflect.ValueOf(x)
+
+	if x1Val.Type().AssignableTo(x2Val.Type()) {
+		x1ValConverted := x1Val.Convert(x2Val.Type())
+		return reflect.DeepEqual(x1ValConverted.Interface(), x2Val.Interface())
+	}
+
+	return false
+}
+
+func (e eqMatcher) String() string {
+	return fmt.Sprintf("is equal to %v (%T)", e.x, e.x)
+}
+
+type nilMatcher struct{}
+
+func (nilMatcher) Matches(x interface{}) bool {
+	if x == nil {
+		return true
+	}
+
+	v := reflect.ValueOf(x)
+	switch v.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map,
+		reflect.Ptr, reflect.Slice:
+		return v.IsNil()
+	}
+
+	return false
+}
+
+func (nilMatcher) String() string {
+	return "is nil"
+}
+
+type notMatcher struct {
+	m Matcher
+}
+
+func (n notMatcher) Matches(x interface{}) bool {
+	return !n.m.Matches(x)
+}
+
+func (n notMatcher) String() string {
+	return "not(" + n.m.String() + ")"
+}
+
+type assignableToTypeOfMatcher struct {
+	targetType reflect.Type
+}
+
+func (m assignableToTypeOfMatcher) Matches(x interface{}) bool {
+	return reflect.TypeOf(x).AssignableTo(m.targetType)
+}
+
+func (m assignableToTypeOfMatcher) String() string {
+	return "is assignable to " + m.targetType.Name()
+}
+
+type allMatcher struct {
+	matchers []Matcher
+}
+
+func (am allMatcher) Matches(x interface{}) bool {
+	for _, m := range am.matchers {
+		if !m.Matches(x) {
+			return false
+		}
+	}
+	return true
+}
+
+func (am allMatcher) String() string {
+	ss := make([]string, 0, len(am.matchers))
+	for _, matcher := range am.matchers {
+		ss = append(ss, matcher.String())
+	}
+	return strings.Join(ss, "; ")
+}
+
+type lenMatcher struct {
+	i int
+}
+
+func (m lenMatcher) Matches(x interface{}) bool {
+	v := reflect.ValueOf(x)
+	switch v.Kind() {
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
+		return v.Len() == m.i
+	default:
+		return false
+	}
+}
+
+func (m lenMatcher) String() string {
+	return fmt.Sprintf("has length %d", m.i)
+}
+
+type inAnyOrderMatcher struct {
+	x interface{}
+}
+
+func (m inAnyOrderMatcher) Matches(x interface{}) bool {
+	given, ok := m.prepareValue(x)
+	if !ok {
+		return false
+	}
+	wanted, ok := m.prepareValue(m.x)
+	if !ok {
+		return false
+	}
+
+	if given.Len() != wanted.Len() {
+		return false
+	}
+
+	usedFromGiven := make([]bool, given.Len())
+	foundFromWanted := make([]bool, wanted.Len())
+	for i := 0; i < wanted.Len(); i++ {
+		wantedMatcher := Eq(wanted.Index(i).Interface())
+		for j := 0; j < given.Len(); j++ {
+			if usedFromGiven[j] {
+				continue
+			}
+			if wantedMatcher.Matches(given.Index(j).Interface()) {
+				foundFromWanted[i] = true
+				usedFromGiven[j] = true
+				break
+			}
+		}
+	}
+
+	missingFromWanted := 0
+	for _, found := range foundFromWanted {
+		if !found {
+			missingFromWanted++
+		}
+	}
+	extraInGiven := 0
+	for _, used := range usedFromGiven {
+		if !used {
+			extraInGiven++
+		}
+	}
+
+	return extraInGiven == 0 && missingFromWanted == 0
+}
+
+func (m inAnyOrderMatcher) prepareValue(x interface{}) (reflect.Value, bool) {
+	xValue := reflect.ValueOf(x)
+	switch xValue.Kind() {
+	case reflect.Slice, reflect.Array:
+		return xValue, true
+	default:
+		return reflect.Value{}, false
+	}
+}
+
+func (m inAnyOrderMatcher) String() string {
+	return fmt.Sprintf("has the same elements as %v", m.x)
+}
+
+// Constructors
+
+// All returns a composite Matcher that returns true if and only all of the
+// matchers return true.
+func All(ms ...Matcher) Matcher { return allMatcher{ms} }
+
+// Any returns a matcher that always matches.
+func Any() Matcher { return anyMatcher{} }
+
+// Eq returns a matcher that matches on equality.
+//
+// Example usage:
+//   Eq(5).Matches(5) // returns true
+//   Eq(5).Matches(4) // returns false
+func Eq(x interface{}) Matcher { return eqMatcher{x} }
+
+// Len returns a matcher that matches on length. This matcher returns false if
+// is compared to a type that is not an array, chan, map, slice, or string.
+func Len(i int) Matcher {
+	return lenMatcher{i}
+}
+
+// Nil returns a matcher that matches if the received value is nil.
+//
+// Example usage:
+//   var x *bytes.Buffer
+//   Nil().Matches(x) // returns true
+//   x = &bytes.Buffer{}
+//   Nil().Matches(x) // returns false
+func Nil() Matcher { return nilMatcher{} }
+
+// Not reverses the results of its given child matcher.
+//
+// Example usage:
+//   Not(Eq(5)).Matches(4) // returns true
+//   Not(Eq(5)).Matches(5) // returns false
+func Not(x interface{}) Matcher {
+	if m, ok := x.(Matcher); ok {
+		return notMatcher{m}
+	}
+	return notMatcher{Eq(x)}
+}
+
+// AssignableToTypeOf is a Matcher that matches if the parameter to the mock
+// function is assignable to the type of the parameter to this function.
+//
+// Example usage:
+//   var s fmt.Stringer = &bytes.Buffer{}
+//   AssignableToTypeOf(s).Matches(time.Second) // returns true
+//   AssignableToTypeOf(s).Matches(99) // returns false
+//
+//   var ctx = reflect.TypeOf((*context.Context)(nil)).Elem()
+//   AssignableToTypeOf(ctx).Matches(context.Background()) // returns true
+func AssignableToTypeOf(x interface{}) Matcher {
+	if xt, ok := x.(reflect.Type); ok {
+		return assignableToTypeOfMatcher{xt}
+	}
+	return assignableToTypeOfMatcher{reflect.TypeOf(x)}
+}
+
+// InAnyOrder is a Matcher that returns true for collections of the same elements ignoring the order.
+//
+// Example usage:
+//   InAnyOrder([]int{1, 2, 3}).Matches([]int{1, 3, 2}) // returns true
+//   InAnyOrder([]int{1, 2, 3}).Matches([]int{1, 2}) // returns false
+func InAnyOrder(x interface{}) Matcher {
+	return inAnyOrderMatcher{x}
+}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 94323f293..b5310da4b 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -170,6 +170,9 @@ github.com/golang-jwt/jwt/v4
 # github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
 ## explicit
 github.com/golang/groupcache/lru
+# github.com/golang/mock v1.6.0
+## explicit; go 1.11
+github.com/golang/mock/gomock
 # github.com/golang/protobuf v1.5.2
 ## explicit; go 1.9
 github.com/golang/protobuf/proto


Test patch:
diff --git a/pkg/subnetmanager/subnet_informer_test.go b/pkg/subnetmanager/subnet_informer_test.go
new file mode 100644
index 000000000..616f63abe
--- /dev/null
+++ b/pkg/subnetmanager/subnet_informer_test.go
@@ -0,0 +1,278 @@
+// Copyright 2022 Authors of spidernet-io
+// SPDX-License-Identifier: Apache-2.0
+
+package subnetmanager_test
+
+import (
+	"context"
+	"fmt"
+	"sync/atomic"
+	"time"
+
+	"github.com/agiledragon/gomonkey/v2"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/apimachinery/pkg/util/uuid"
+	"k8s.io/apimachinery/pkg/watch"
+	"k8s.io/client-go/testing"
+	"k8s.io/client-go/tools/cache"
+	"k8s.io/utils/pointer"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	"github.com/spidernet-io/spiderpool/pkg/constant"
+	spiderpoolip "github.com/spidernet-io/spiderpool/pkg/ip"
+	spiderpoolv1 "github.com/spidernet-io/spiderpool/pkg/k8s/apis/spiderpool.spidernet.io/v1"
+	spiderpoolfake "github.com/spidernet-io/spiderpool/pkg/k8s/client/clientset/versioned/fake"
+	"github.com/spidernet-io/spiderpool/pkg/logutils"
+	"github.com/spidernet-io/spiderpool/pkg/subnetmanager"
+)
+
+var _ = Describe("SubnetController", Label("subnet_controller_test"), func() {
+	Describe("SYNC", func() {
+		var count uint64
+		var subnetName string
+		var subnetT *spiderpoolv1.SpiderSubnet
+		var ipPoolName string
+		var ipPoolT *spiderpoolv1.SpiderIPPool
+
+		var subnetController *subnetmanager.SubnetController
+		var fakeSubnetWatch, fakeIPPoolWatch *watch.FakeWatcher
+		var subnetIndexer, ipPoolIndexer cache.Indexer
+
+		BeforeEach(func() {
+			subnetmanager.InformerLogger = logutils.Logger.Named("Subnet-Informer")
+
+			atomic.AddUint64(&count, 1)
+			subnetName = fmt.Sprintf("subnet-%v", count)
+			subnetT = &spiderpoolv1.SpiderSubnet{
+				TypeMeta: metav1.TypeMeta{
+					Kind:       constant.SpiderSubnetKind,
+					APIVersion: fmt.Sprintf("%s/%s", constant.SpiderpoolAPIGroup, constant.SpiderpoolAPIVersionV1),
+				},
+				ObjectMeta: metav1.ObjectMeta{
+					Name: subnetName,
+				},
+				Spec: spiderpoolv1.SubnetSpec{},
+			}
+
+			ipPoolName = fmt.Sprintf("ippool-%v", count)
+			ipPoolT = &spiderpoolv1.SpiderIPPool{
+				TypeMeta: metav1.TypeMeta{
+					Kind:       constant.SpiderIPPoolKind,
+					APIVersion: fmt.Sprintf("%s/%s", constant.SpiderpoolAPIGroup, constant.SpiderpoolAPIVersionV1),
+				},
+				ObjectMeta: metav1.ObjectMeta{
+					Name:   ipPoolName,
+					Labels: map[string]string{},
+				},
+				Spec: spiderpoolv1.IPPoolSpec{},
+			}
+
+			subnetController = &subnetmanager.SubnetController{
+				Client:                  fakeClient,
+				Scheme:                  scheme,
+				LeaderRetryElectGap:     time.Second,
+				SubnetControllerWorkers: 1,
+				MaxWorkqueueLength:      1,
+			}
+
+			patches := gomonkey.ApplyFuncReturn(cache.WaitForNamedCacheSync, true)
+			DeferCleanup(patches.Reset)
+
+			mockLeaderElector.EXPECT().
+				IsElected().
+				Return(true).
+				AnyTimes()
+
+			ctx, cancel := context.WithCancel(context.Background())
+			DeferCleanup(cancel)
+
+			fakeSubnetWatch = watch.NewFake()
+			fakeIPPoolWatch = watch.NewFake()
+			fakeClientset := spiderpoolfake.NewSimpleClientset()
+			fakeClientset.PrependWatchReactor("spidersubnets", testing.DefaultWatchReactor(fakeSubnetWatch, nil))
+			fakeClientset.PrependWatchReactor("spiderippools", testing.DefaultWatchReactor(fakeIPPoolWatch, nil))
+
+			err := subnetController.SetupInformer(ctx, fakeClientset, mockLeaderElector)
+			Expect(err).NotTo(HaveOccurred())
+			Eventually(func(g Gomega) {
+				g.Expect(subnetController.SubnetIndexer).NotTo(BeNil())
+				g.Expect(subnetController.IPPoolIndexer).NotTo(BeNil())
+				subnetIndexer = subnetController.SubnetIndexer
+				ipPoolIndexer = subnetController.IPPoolIndexer
+			}).Should(Succeed())
+
+		})
+
+		var deleteOption *client.DeleteOptions
+
+		AfterEach(func() {
+			policy := metav1.DeletePropagationForeground
+			deleteOption = &client.DeleteOptions{
+				GracePeriodSeconds: pointer.Int64(0),
+				PropagationPolicy:  &policy,
+			}
+
+			ctx := context.TODO()
+			err := fakeClient.Delete(ctx, ipPoolT, deleteOption)
+			Expect(client.IgnoreNotFound(err)).NotTo(HaveOccurred())
+
+			err = fakeClient.Delete(ctx, subnetT, deleteOption)
+			Expect(client.IgnoreNotFound(err)).NotTo(HaveOccurred())
+		})
+
+		It("sets CIDR label", func() {
+			ipVersion := constant.IPv4
+			subnet := "172.18.40.0/24"
+			cidr, err := spiderpoolip.CIDRToLabelValue(ipVersion, subnet)
+			Expect(err).NotTo(HaveOccurred())
+			Expect(cidr).NotTo(BeEmpty())
+
+			subnetT.Spec.IPVersion = &ipVersion
+			subnetT.Spec.Subnet = subnet
+
+			ctx := context.TODO()
+			err = fakeClient.Create(ctx, subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = subnetIndexer.Add(subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			fakeSubnetWatch.Add(subnetT)
+			Eventually(func(g Gomega) {
+				var subnetR spiderpoolv1.SpiderSubnet
+				err = fakeClient.Get(ctx, types.NamespacedName{Name: subnetT.Name}, &subnetR)
+				g.Expect(err).NotTo(HaveOccurred())
+
+				v, ok := subnetR.Labels[constant.LabelSubnetCIDR]
+				g.Expect(ok).To(BeTrue())
+				g.Expect(v).To(Equal(cidr))
+			}).Should(Succeed())
+		})
+
+		It("sets the owner reference of the controlled IPPools", func() {
+			subnetT.SetUID(uuid.NewUUID())
+			subnetT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			subnetT.Spec.Subnet = "172.18.40.0/24"
+
+			ctx := context.TODO()
+			err := fakeClient.Create(ctx, subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = subnetIndexer.Add(subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			ipPoolT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			ipPoolT.Spec.Subnet = "172.18.40.0/24"
+
+			err = fakeClient.Create(ctx, ipPoolT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = ipPoolIndexer.Add(ipPoolT)
+			Expect(err).NotTo(HaveOccurred())
+
+			fakeSubnetWatch.Add(subnetT)
+			Eventually(func(g Gomega) {
+				var subnetR spiderpoolv1.SpiderSubnet
+				err = fakeClient.Get(ctx, types.NamespacedName{Name: subnetT.Name}, &subnetR)
+				g.Expect(err).NotTo(HaveOccurred())
+
+				var ipPoolR spiderpoolv1.SpiderIPPool
+				err = fakeClient.Get(ctx, types.NamespacedName{Name: ipPoolT.Name}, &ipPoolR)
+				g.Expect(err).NotTo(HaveOccurred())
+
+				controlled := metav1.IsControlledBy(&ipPoolR, &subnetR)
+				g.Expect(controlled).To(BeTrue())
+
+				v, ok := ipPoolR.Labels[constant.LabelIPPoolOwnerSpiderSubnet]
+				g.Expect(ok).To(BeTrue())
+				g.Expect(v).To(Equal(subnetR.Name))
+			}).Should(Succeed())
+		})
+
+		It("aggregates pre-allocation status", func() {
+			subnetT.SetUID(uuid.NewUUID())
+			subnetT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			subnetT.Spec.Subnet = "172.18.40.0/24"
+			subnetT.Spec.IPs = append(subnetT.Spec.IPs, "172.18.40.10")
+
+			ctx := context.TODO()
+			err := fakeClient.Create(ctx, subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = subnetIndexer.Add(subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			ipPoolT.Labels[constant.LabelIPPoolOwnerSpiderSubnet] = subnetT.Name
+			ipPoolT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			ipPoolT.Spec.Subnet = "172.18.40.0/24"
+			ipPoolT.Spec.IPs = append(ipPoolT.Spec.IPs, "172.18.40.10")
+
+			err = fakeClient.Create(ctx, ipPoolT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = ipPoolIndexer.Add(ipPoolT)
+			Expect(err).NotTo(HaveOccurred())
+
+			fakeSubnetWatch.Add(subnetT)
+			Eventually(func(g Gomega) {
+				var subnetR spiderpoolv1.SpiderSubnet
+				err = fakeClient.Get(ctx, types.NamespacedName{Name: subnetT.Name}, &subnetR)
+				g.Expect(err).NotTo(HaveOccurred())
+				g.Expect(subnetR.Status.ControlledIPPools).To(Equal(
+					spiderpoolv1.PoolIPPreAllocations{
+						ipPoolT.Name: spiderpoolv1.PoolIPPreAllocation{
+							IPs: []string{"172.18.40.10"},
+						},
+					},
+				))
+				g.Expect(*subnetR.Status.TotalIPCount).To(BeNumerically("==", 1))
+				g.Expect(*subnetR.Status.AllocatedIPCount).To(BeNumerically("==", 1))
+			}).Should(Succeed())
+		})
+
+		It("cascades delete Subnet and the IPPools it controls", func() {
+			controllerutil.AddFinalizer(subnetT, constant.SpiderFinalizer)
+			now := metav1.Now()
+			subnetT.SetDeletionTimestamp(&now)
+			subnetT.SetDeletionGracePeriodSeconds(pointer.Int64(0))
+			subnetT.SetUID(uuid.NewUUID())
+			subnetT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			subnetT.Spec.Subnet = "172.18.40.0/24"
+
+			ctx := context.TODO()
+			err := fakeClient.Create(ctx, subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = subnetIndexer.Add(subnetT)
+			Expect(err).NotTo(HaveOccurred())
+
+			// TODO(iiiceoo): Depends on K8s GC.
+			// ctrl.SetControllerReference(subnetT, ipPoolT, scheme)
+			// ipPoolT.Labels[constant.LabelIPPoolOwnerSpiderSubnet] = subnetT.Name
+			// ipPoolT.Spec.IPVersion = pointer.Int64(constant.IPv4)
+			// ipPoolT.Spec.Subnet = "172.18.40.0/24"
+
+			// err = fakeClient.Create(ctx, ipPoolT)
+			// Expect(err).NotTo(HaveOccurred())
+
+			// err = ipPoolIndexer.Add(ipPoolT)
+			// Expect(err).NotTo(HaveOccurred())
+
+			fakeSubnetWatch.Modify(subnetT)
+			Eventually(func(g Gomega) {
+				// var ipPoolR spiderpoolv1.SpiderIPPool
+				// err = fakeClient.Get(ctx, types.NamespacedName{Name: ipPoolT.Name}, &ipPoolR)
+				// g.Expect(apierrors.IsNotFound(err)).To(BeTrue())
+
+				var subnetR spiderpoolv1.SpiderSubnet
+				err = fakeClient.Get(ctx, types.NamespacedName{Name: subnetT.Name}, &subnetR)
+				g.Expect(apierrors.IsNotFound(err)).To(BeTrue())
+			}).Should(Succeed())
+		})
+	})
+})
diff --git a/pkg/subnetmanager/subnet_manager_suite_test.go b/pkg/subnetmanager/subnet_manager_suite_test.go
index b0e8760c9..d1fff13ac 100644
--- a/pkg/subnetmanager/subnet_manager_suite_test.go
+++ b/pkg/subnetmanager/subnet_manager_suite_test.go
@@ -6,21 +6,29 @@ package subnetmanager_test
 import (
 	"testing"
 
+	"github.com/golang/mock/gomock"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 	"k8s.io/apimachinery/pkg/runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
 
+	electionmock "github.com/spidernet-io/spiderpool/pkg/election/mock"
 	spiderpoolv1 "github.com/spidernet-io/spiderpool/pkg/k8s/apis/spiderpool.spidernet.io/v1"
 	"github.com/spidernet-io/spiderpool/pkg/subnetmanager"
 )
 
+var mockCtrl *gomock.Controller
+var mockLeaderElector *electionmock.MockSpiderLeaseElector
+
 var scheme *runtime.Scheme
 var fakeClient client.Client
 var subnetWebhook *subnetmanager.SubnetWebhook
 
 func TestSubnetManager(t *testing.T) {
+	mockCtrl = gomock.NewController(t)
+	defer mockCtrl.Finish()
+
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "SubnetManager Suite", Label("subnetmanager", "unitest"))
 }
@@ -37,4 +45,6 @@ var _ = BeforeSuite(func() {
 	subnetWebhook = &subnetmanager.SubnetWebhook{
 		Client: fakeClient,
 	}
+
+	mockLeaderElector = electionmock.NewMockSpiderLeaseElector(mockCtrl)
 })