diff --git a/pkg/scheduler/extender_test.go b/pkg/scheduler/extender_test.go
index 83e4fa29a57..d137edf01a8 100644
--- a/pkg/scheduler/extender_test.go
+++ b/pkg/scheduler/extender_test.go
@@ -22,7 +22,7 @@ import (
 	"testing"
 	"time"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/sets"
@@ -58,10 +58,12 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.TruePredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 				},
 				{
-					Predicates: []st.FitPredicate{st.ErrorPredicateExtender},
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.ErrorPredicateExtender},
 				},
 			},
 			nodes:      []string{"node1", "node2"},
@@ -76,10 +78,12 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.TruePredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 				},
 				{
-					Predicates: []st.FitPredicate{st.FalsePredicateExtender},
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.FalsePredicateExtender},
 				},
 			},
 			nodes:      []string{"node1", "node2"},
@@ -94,10 +98,12 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.TruePredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 				},
 				{
-					Predicates: []st.FitPredicate{st.Node1PredicateExtender},
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
 				},
 			},
 			nodes: []string{"node1", "node2"},
@@ -116,10 +122,12 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.Node2PredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.Node2PredicateExtender},
 				},
 				{
-					Predicates: []st.FitPredicate{st.Node1PredicateExtender},
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
 				},
 			},
 			nodes:      []string{"node1", "node2"},
@@ -134,6 +142,7 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 					Prioritizers: []st.PriorityConfig{{Function: st.ErrorPrioritizerExtender, Weight: 10}},
 					Weight:       1,
@@ -155,11 +164,13 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 					Prioritizers: []st.PriorityConfig{{Function: st.Node1PrioritizerExtender, Weight: 10}},
 					Weight:       1,
 				},
 				{
+					ExtenderName: "FakeExtender2",
 					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 					Prioritizers: []st.PriorityConfig{{Function: st.Node2PrioritizerExtender, Weight: 10}},
 					Weight:       5,
@@ -182,6 +193,7 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 					Prioritizers: []st.PriorityConfig{{Function: st.Node1PrioritizerExtender, Weight: 10}},
 					Weight:       1,
@@ -211,6 +223,7 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates:   []st.FitPredicate{st.ErrorPredicateExtender},
 					Prioritizers: []st.PriorityConfig{{Function: st.ErrorPrioritizerExtender, Weight: 10}},
 					UnInterested: true,
@@ -238,11 +251,13 @@ func TestGenericSchedulerWithExtenders(t *testing.T) {
 			},
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.ErrorPredicateExtender},
-					Ignorable:  true,
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.ErrorPredicateExtender},
+					Ignorable:    true,
 				},
 				{
-					Predicates: []st.FitPredicate{st.Node1PredicateExtender},
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
 				},
 			},
 			nodes:      []string{"node1", "node2"},
diff --git a/pkg/scheduler/framework/plugins/defaultpreemption/default_preemption_test.go b/pkg/scheduler/framework/plugins/defaultpreemption/default_preemption_test.go
index 9671b39fb46..691427d1dda 100644
--- a/pkg/scheduler/framework/plugins/defaultpreemption/default_preemption_test.go
+++ b/pkg/scheduler/framework/plugins/defaultpreemption/default_preemption_test.go
@@ -227,7 +227,10 @@ func TestPostFilter(t *testing.T) {
 				"node1": framework.NewStatus(framework.Unschedulable),
 				"node2": framework.NewStatus(framework.Unschedulable),
 			},
-			extender:   &st.FakeExtender{Predicates: []st.FitPredicate{st.Node1PredicateExtender}},
+			extender: &st.FakeExtender{
+				ExtenderName: "FakeExtender1",
+				Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
+			},
 			wantResult: framework.NewPostFilterResultWithNominatedNode("node1"),
 			wantStatus: framework.NewStatus(framework.Success),
 		},
@@ -1506,8 +1509,14 @@ func TestPreempt(t *testing.T) {
 			},
 			nodeNames: []string{"node1", "node2", "node3"},
 			extenders: []*st.FakeExtender{
-				{Predicates: []st.FitPredicate{st.TruePredicateExtender}},
-				{Predicates: []st.FitPredicate{st.Node1PredicateExtender}},
+				{
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
+				},
+				{
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
+				},
 			},
 			registerPlugin: st.RegisterPluginAsExtensions(noderesources.Name, nodeResourcesFitFunc, "Filter", "PreFilter"),
 			want:           framework.NewPostFilterResultWithNominatedNode("node1"),
@@ -1523,7 +1532,10 @@ func TestPreempt(t *testing.T) {
 			},
 			nodeNames: []string{"node1", "node2", "node3"},
 			extenders: []*st.FakeExtender{
-				{Predicates: []st.FitPredicate{st.FalsePredicateExtender}},
+				{
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.FalsePredicateExtender},
+				},
 			},
 			registerPlugin: st.RegisterPluginAsExtensions(noderesources.Name, nodeResourcesFitFunc, "Filter", "PreFilter"),
 			want:           nil,
@@ -1539,8 +1551,15 @@ func TestPreempt(t *testing.T) {
 			},
 			nodeNames: []string{"node1", "node2", "node3"},
 			extenders: []*st.FakeExtender{
-				{Predicates: []st.FitPredicate{st.ErrorPredicateExtender}, Ignorable: true},
-				{Predicates: []st.FitPredicate{st.Node1PredicateExtender}},
+				{
+					Predicates:   []st.FitPredicate{st.ErrorPredicateExtender},
+					Ignorable:    true,
+					ExtenderName: "FakeExtender1",
+				},
+				{
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
+					ExtenderName: "FakeExtender2",
+				},
 			},
 			registerPlugin: st.RegisterPluginAsExtensions(noderesources.Name, nodeResourcesFitFunc, "Filter", "PreFilter"),
 			want:           framework.NewPostFilterResultWithNominatedNode("node1"),
@@ -1556,8 +1575,15 @@ func TestPreempt(t *testing.T) {
 			},
 			nodeNames: []string{"node1", "node2"},
 			extenders: []*st.FakeExtender{
-				{Predicates: []st.FitPredicate{st.Node1PredicateExtender}, UnInterested: true},
-				{Predicates: []st.FitPredicate{st.TruePredicateExtender}},
+				{
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.Node1PredicateExtender},
+					UnInterested: true,
+				},
+				{
+					ExtenderName: "FakeExtender2",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
+				},
 			},
 			registerPlugin: st.RegisterPluginAsExtensions(noderesources.Name, nodeResourcesFitFunc, "Filter", "PreFilter"),
 			// sum of priorities of all victims on node1 is larger than node2, node2 is chosen.
diff --git a/pkg/scheduler/generic_scheduler_test.go b/pkg/scheduler/generic_scheduler_test.go
index c0da6f3f83a..b40dad8d9fa 100644
--- a/pkg/scheduler/generic_scheduler_test.go
+++ b/pkg/scheduler/generic_scheduler_test.go
@@ -285,7 +285,8 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "error",
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.ErrorPredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.ErrorPredicateExtender},
 				},
 			},
 			nodes:                 makeNodeList([]string{"a"}),
@@ -296,7 +297,8 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "success",
 			extenders: []st.FakeExtender{
 				{
-					Predicates: []st.FitPredicate{st.TruePredicateExtender},
+					ExtenderName: "FakeExtender1",
+					Predicates:   []st.FitPredicate{st.TruePredicateExtender},
 				},
 			},
 			nodes:                 makeNodeList([]string{"a"}),
@@ -309,6 +311,7 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "unschedulable",
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates: []st.FitPredicate{func(pod *v1.Pod, node *v1.Node) *framework.Status {
 						if node.Name == "a" {
 							return framework.NewStatus(framework.Success)
@@ -329,6 +332,7 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "unschedulable and unresolvable",
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates: []st.FitPredicate{func(pod *v1.Pod, node *v1.Node) *framework.Status {
 						if node.Name == "a" {
 							return framework.NewStatus(framework.Success)
@@ -353,6 +357,7 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "extender may overwrite the statuses",
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates: []st.FitPredicate{func(pod *v1.Pod, node *v1.Node) *framework.Status {
 						if node.Name == "a" {
 							return framework.NewStatus(framework.Success)
@@ -379,6 +384,7 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 			name: "multiple extenders",
 			extenders: []st.FakeExtender{
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates: []st.FitPredicate{func(pod *v1.Pod, node *v1.Node) *framework.Status {
 						if node.Name == "a" {
 							return framework.NewStatus(framework.Success)
@@ -390,6 +396,7 @@ func TestFindNodesThatPassExtenders(t *testing.T) {
 					}},
 				},
 				{
+					ExtenderName: "FakeExtender1",
 					Predicates: []st.FitPredicate{func(pod *v1.Pod, node *v1.Node) *framework.Status {
 						if node.Name == "a" {
 							return framework.NewStatus(framework.Success)
diff --git a/pkg/scheduler/testing/fake_extender.go b/pkg/scheduler/testing/fake_extender.go
index 95fe57da85d..ab66d6c8ca8 100644
--- a/pkg/scheduler/testing/fake_extender.go
+++ b/pkg/scheduler/testing/fake_extender.go
@@ -143,6 +143,9 @@ func (pl *node2PrioritizerPlugin) ScoreExtensions() framework.ScoreExtensions {
 
 // FakeExtender is a data struct which implements the Extender interface.
 type FakeExtender struct {
+	// ExtenderName indicates this fake extender's name.
+	// Note that extender name should be unique.
+	ExtenderName     string
 	Predicates       []FitPredicate
 	Prioritizers     []PriorityConfig
 	Weight           int64
@@ -155,9 +158,15 @@ type FakeExtender struct {
 	CachedNodeNameToInfo map[string]*framework.NodeInfo
 }
 
+const defaultFakeExtenderName = "defaultFakeExtender"
+
 // Name returns name of the extender.
 func (f *FakeExtender) Name() string {
-	return "FakeExtender"
+	if f.ExtenderName == "" {
+		// If ExtenderName is unset, use default name.
+		return defaultFakeExtenderName
+	}
+	return f.ExtenderName
 }
 
 // IsIgnorable returns a bool value indicating whether internal errors can be ignored.