diff --git a/go.mod b/go.mod
index 7d2fac4..b3a1962 100644
--- a/go.mod
+++ b/go.mod
@@ -24,6 +24,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emicklei/go-restful/v3 v3.9.0 // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-logr/zapr v1.2.3 // indirect
diff --git a/go.sum b/go.sum
index bd7f340..cbcc252 100644
--- a/go.sum
+++ b/go.sum
@@ -66,6 +66,7 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMikGIFbs31qQ=
 github.com/evanphx/json-patch v4.12.0+incompatible h1:4onqiflcdA9EOZ4RxV643DvftH5pOlLGNtQ5lPWQu84=
+github.com/evanphx/json-patch v4.12.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/evanphx/json-patch/v5 v5.6.0 h1:b91NhWfaz02IuVxO9faSllyAtNXHMPkC5J8sJCLunww=
 github.com/evanphx/json-patch/v5 v5.6.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
diff --git a/internal/controller/pvc_controller_test.go b/internal/controller/pvc_controller_test.go
new file mode 100644
index 0000000..56ee326
--- /dev/null
+++ b/internal/controller/pvc_controller_test.go
@@ -0,0 +1,199 @@
+package controller
+
+import (
+	"fmt"
+	"github.com/AppsFlyer/local-pvc-releaser/internal/exporters"
+	corev1 "k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/klog/v2/klogr"
+	"os"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/client/fake"
+	"testing"
+)
+
+func getReconciler() *PVCReconciler {
+	fakeClient, err := getFakeClient()
+	if err != nil {
+		fmt.Println("unable to create fake client. exiting..")
+		os.Exit(1)
+	}
+	logr := klogr.New()
+
+	collector := exporters.NewCollector()
+	reconciler := &PVCReconciler{
+		Client:            fakeClient,
+		Scheme:            fakeClient.Scheme(),
+		Logger:            &logr,
+		DryRun:            false,
+		Collector:         collector,
+		PvcSelector:       true,
+		PvcAnoCustomKey:   "appsflyer.com/local-pvc-releaser",
+		PvcAnoCustomValue: "enabled",
+	}
+
+	return reconciler
+}
+
+func getFakeClient(initObjs ...client.Object) (client.WithWatch, error) {
+	scheme := runtime.NewScheme()
+	if err := corev1.AddToScheme(scheme); err != nil {
+		return nil, err
+	}
+	return fake.NewClientBuilder().WithScheme(scheme).WithObjects(initObjs...).Build(), nil
+}
+
+func TestFilterPVCListByPV(t *testing.T) {
+	reconciler := getReconciler()
+
+	// Create a sample PVC list
+	pvcList := &v1.PersistentVolumeClaimList{
+		Items: []v1.PersistentVolumeClaim{
+			{
+				ObjectMeta: metav1.ObjectMeta{Name: "pvc1"},
+				Spec: v1.PersistentVolumeClaimSpec{
+					VolumeName: "pv1",
+				},
+			},
+			{
+				ObjectMeta: metav1.ObjectMeta{Name: "pvc2"},
+				Spec: v1.PersistentVolumeClaimSpec{
+					VolumeName: "pv2",
+				},
+			},
+		},
+	}
+
+	// Create a sample PV
+	pvExist := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{Name: "pv1"},
+	}
+
+	pvNil := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{Name: "pv3"},
+	}
+
+	// Simulate successful filtering
+	result := reconciler.FilterPVCListByPV(pvcList, pvExist)
+
+	// Check if the result is as expected
+	if result == nil {
+		t.Error("Expected a non-nil result, got nil")
+	}
+
+	if result.Name != "pvc1" {
+		t.Errorf("Expected result to be pvc1, got %s", result.Name)
+	}
+
+	// Simulate non existed pv
+	result = reconciler.FilterPVCListByPV(pvcList, pvNil)
+
+	// Check if the result is as expected
+	if result != nil {
+		t.Error("Expected nil result, got non-nil object as the filter return matched value")
+	}
+}
+
+func TestFilterPVListByNodeName(t *testing.T) {
+	reconciler := getReconciler()
+
+	// Create a sample PV list
+	pvList := &v1.PersistentVolumeList{
+		Items: []v1.PersistentVolume{
+			{
+				ObjectMeta: metav1.ObjectMeta{Name: "pv1"},
+				Spec: v1.PersistentVolumeSpec{
+					NodeAffinity: &v1.VolumeNodeAffinity{
+						Required: &v1.NodeSelector{
+							NodeSelectorTerms: []v1.NodeSelectorTerm{
+								{
+									MatchExpressions: []v1.NodeSelectorRequirement{
+										{
+											Key:      "kubernetes.io/hostname",
+											Operator: v1.NodeSelectorOpIn,
+											Values:   []string{"node1"},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				Status: v1.PersistentVolumeStatus{
+					Phase: v1.VolumeBound,
+				},
+			},
+			{
+				ObjectMeta: metav1.ObjectMeta{Name: "pv2"},
+				Spec: v1.PersistentVolumeSpec{
+					NodeAffinity: &v1.VolumeNodeAffinity{
+						Required: &v1.NodeSelector{
+							NodeSelectorTerms: []v1.NodeSelectorTerm{
+								{
+									MatchExpressions: []v1.NodeSelectorRequirement{
+										{
+											Key:      "kubernetes.io/hostname",
+											Operator: v1.NodeSelectorOpIn,
+											Values:   []string{"node2"},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				Status: v1.PersistentVolumeStatus{
+					Phase: v1.VolumeBound,
+				},
+			},
+			{
+				ObjectMeta: metav1.ObjectMeta{Name: "pv3"},
+				Spec: v1.PersistentVolumeSpec{
+					NodeAffinity: &v1.VolumeNodeAffinity{
+						Required: &v1.NodeSelector{
+							NodeSelectorTerms: []v1.NodeSelectorTerm{
+								{
+									MatchExpressions: []v1.NodeSelectorRequirement{
+										{
+											Key:      "kubernetes.io/hostname",
+											Operator: v1.NodeSelectorOpIn,
+											Values:   []string{"node3"},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				Status: v1.PersistentVolumeStatus{
+					Phase: v1.VolumeBound,
+				},
+			},
+			// Add more PVs as needed for additional test cases
+		},
+	}
+
+	// Call the function for matched results
+	nodeName := "node2"
+	result := reconciler.FilterPVListByNodeName(pvList, nodeName)
+
+	// Check if the result is as expected
+	if len(result) != 1 {
+		t.Errorf("Expected 1 related PV, got %d", len(result))
+	}
+
+	if result[0].Name != "pv2" {
+		t.Errorf("Expected result to be pv2, got %s", result[0].Name)
+	}
+
+	// Call the function with empty PV list
+	nodeNameNil := ""
+	result = reconciler.FilterPVListByNodeName(&v1.PersistentVolumeList{}, nodeNameNil)
+
+	// Check if the result is as expected
+	if len(result) != 0 {
+		t.Errorf("Expected 0 related PV, got %d", len(result))
+	}
+}