diff --git a/pkg/coscheduling/core/core_test.go b/pkg/coscheduling/core/core_test.go
index c57f659c8f..a295ae21a1 100644
--- a/pkg/coscheduling/core/core_test.go
+++ b/pkg/coscheduling/core/core_test.go
@@ -25,6 +25,7 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/client-go/informers"
 	clientsetfake "k8s.io/client-go/kubernetes/fake"
 	clicache "k8s.io/client-go/tools/cache"
@@ -169,6 +170,7 @@ func TestPreFilter(t *testing.T) {
 				scheduleTimeout:      &scheduleTimeout,
 				permittedPG:          newCache(),
 				backedOffPG:          newCache(),
+				assignedPodsByPG:     make(map[string]sets.Set[string]),
 			}
 
 			informerFactory.Start(ctx.Done())
@@ -268,6 +270,7 @@ func TestPermit(t *testing.T) {
 				snapshotSharedLister: tu.NewFakeSharedLister(tt.existingPods, nodes),
 				podLister:            podInformer.Lister(),
 				scheduleTimeout:      &scheduleTimeout,
+				assignedPodsByPG:     make(map[string]sets.Set[string]),
 			}
 
 			informerFactory.Start(ctx.Done())