diff --git a/pkg/resourceinterpreter/defaultinterpreter/dependencies_test.go b/pkg/resourceinterpreter/defaultinterpreter/dependencies_test.go
new file mode 100644
index 000000000..a15978376
--- /dev/null
+++ b/pkg/resourceinterpreter/defaultinterpreter/dependencies_test.go
@@ -0,0 +1,160 @@
+package defaultinterpreter
+
+import (
+	"reflect"
+	"testing"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/util/sets"
+
+	configv1alpha1 "github.com/karmada-io/karmada/pkg/apis/config/v1alpha1"
+	"github.com/karmada-io/karmada/test/helper"
+)
+
+func TestGetSecretNames(t *testing.T) {
+	fakePod := helper.NewPod("foo", "bar")
+	fakePod.Spec.Volumes = []corev1.Volume{
+		{
+			Name: "foo-name",
+			VolumeSource: corev1.VolumeSource{
+				Secret: &corev1.SecretVolumeSource{
+					SecretName: "fake-foo",
+				},
+			},
+		},
+		{
+			Name: "bar-name",
+			VolumeSource: corev1.VolumeSource{
+				Secret: &corev1.SecretVolumeSource{
+					SecretName: "fake-bar",
+				},
+			},
+		},
+	}
+
+	tests := []struct {
+		name     string
+		pod      *corev1.Pod
+		expected sets.String
+	}{
+		{
+			name:     "get secret names from pod",
+			pod:      fakePod,
+			expected: sets.NewString("fake-foo", "fake-bar"),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			res := getSecretNames(tt.pod)
+			if !reflect.DeepEqual(res, tt.expected) {
+				t.Errorf("getSecretNames() = %v, want %v", res, tt.expected)
+			}
+		})
+	}
+}
+
+func TestGetConfigMapNames(t *testing.T) {
+	fakePod := helper.NewPod("foo", "bar")
+	fakePod.Spec.Volumes = []corev1.Volume{
+		{
+			Name: "foo-name",
+			VolumeSource: corev1.VolumeSource{
+				ConfigMap: &corev1.ConfigMapVolumeSource{
+					LocalObjectReference: corev1.LocalObjectReference{
+						Name: "fake-foo",
+					},
+				},
+			},
+		},
+		{
+			Name: "bar-name",
+			VolumeSource: corev1.VolumeSource{
+				ConfigMap: &corev1.ConfigMapVolumeSource{
+					LocalObjectReference: corev1.LocalObjectReference{
+						Name: "fake-bar",
+					},
+				},
+			},
+		},
+	}
+
+	tests := []struct {
+		name     string
+		pod      *corev1.Pod
+		expected sets.String
+	}{
+		{
+			name:     "get configMap names from pod",
+			pod:      fakePod,
+			expected: sets.NewString("fake-foo", "fake-bar"),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			res := getConfigMapNames(tt.pod)
+			if !reflect.DeepEqual(res, tt.expected) {
+				t.Errorf("getConfigMapNames() = %v, want %v", res, tt.expected)
+			}
+		})
+	}
+}
+
+func TestGetDependenciesFromPodTemplate(t *testing.T) {
+	fakePod := helper.NewPod("foo", "bar")
+	fakePod.Spec.Volumes = []corev1.Volume{
+		{
+			Name: "foo-name",
+			VolumeSource: corev1.VolumeSource{
+				ConfigMap: &corev1.ConfigMapVolumeSource{
+					LocalObjectReference: corev1.LocalObjectReference{
+						Name: "fake-foo",
+					},
+				},
+			},
+		},
+		{
+			Name: "bar-name",
+			VolumeSource: corev1.VolumeSource{
+				Secret: &corev1.SecretVolumeSource{
+					SecretName: "fake-bar",
+				},
+			},
+		},
+	}
+
+	tests := []struct {
+		name     string
+		pod      *corev1.Pod
+		expected []configv1alpha1.DependentObjectReference
+	}{
+		{
+			name: "get dependencies from PodTemplate",
+			pod:  fakePod,
+			expected: []configv1alpha1.DependentObjectReference{
+				{
+					APIVersion: "v1",
+					Kind:       "ConfigMap",
+					Namespace:  "foo",
+					Name:       "fake-foo",
+				},
+				{
+					APIVersion: "v1",
+					Kind:       "Secret",
+					Namespace:  "foo",
+					Name:       "fake-bar",
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			res, _ := getDependenciesFromPodTemplate(tt.pod)
+			if !reflect.DeepEqual(res, tt.expected) {
+				t.Errorf("getDependenciesFromPodTemplate() = %v, want %v", res, tt.expected)
+			}
+		})
+	}
+}