diff --git a/pkg/reconciler/reconciler_test.go b/pkg/reconciler/reconciler_test.go
index cb69d87..d66adf7 100644
--- a/pkg/reconciler/reconciler_test.go
+++ b/pkg/reconciler/reconciler_test.go
@@ -160,11 +160,19 @@ var _ = BeforeSuite(func() {
 
 	err = os.WriteFile(testConfig, configData, 0o600)
 	Expect(err).ToNot(HaveOccurred())
+	err = os.Setenv(operatorConfigEnv, testConfig)
+	Expect(err).ToNot(HaveOccurred())
+	err = os.Setenv(healthcheck.NodenameEnv, "test-node")
+	Expect(err).ToNot(HaveOccurred())
 })
 
 var _ = AfterSuite(func() {
 	err := os.RemoveAll(tmpDir)
 	Expect(err).ToNot(HaveOccurred())
+	err = os.Unsetenv(operatorConfigEnv)
+	Expect(err).ToNot(HaveOccurred())
+	err = os.Unsetenv(healthcheck.NodenameEnv)
+	Expect(err).ToNot(HaveOccurred())
 })
 
 func TestReconciler(t *testing.T) {
@@ -257,7 +265,6 @@ var _ = Describe("NodeConfigReconciler", func() {
 var _ = Describe("NodeNetworkConfigReconciler", func() {
 	Context("NewNodeNetworkConfigReconciler() should", func() {
 		It("return error if cannot init FRR Manager", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			c := createClient()
 			frrManagerMock.EXPECT().Init(gomock.Any()).Return(fmt.Errorf("init error"))
@@ -265,10 +272,8 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 				frrManagerMock, nl.NewManager(mock_nl.NewMockToolkitInterface(mockctrl)))
 			Expect(err).To(HaveOccurred())
 			Expect(r).To(BeNil())
-			os.Unsetenv(operatorConfigEnv)
 		})
 		It("create new reconciler", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			c := createClient()
 			frrManagerMock.EXPECT().Init(gomock.Any()).Return(nil)
@@ -276,12 +281,10 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 				frrManagerMock, nl.NewManager(mock_nl.NewMockToolkitInterface(mockctrl)))
 			Expect(err).ToNot(HaveOccurred())
 			Expect(r).ToNot(BeNil())
-			os.Unsetenv(operatorConfigEnv)
 		})
 	})
 	Context("Reconcile() should", func() {
 		It("return no error if there is no config to reconcile", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			c := createClient()
 			frrManagerMock.EXPECT().Init(gomock.Any()).Return(nil)
@@ -291,10 +294,8 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 			Expect(r).ToNot(BeNil())
 			err = r.Reconcile(context.TODO())
 			Expect(err).ToNot(HaveOccurred())
-			os.Unsetenv(operatorConfigEnv)
 		})
 		It("return no error if there is no config to reconcile", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			c := createClient()
 			frrManagerMock.EXPECT().Init(gomock.Any()).Return(nil)
@@ -304,12 +305,8 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 			Expect(r).ToNot(BeNil())
 			err = r.Reconcile(context.TODO())
 			Expect(err).ToNot(HaveOccurred())
-			os.Unsetenv(operatorConfigEnv)
 		})
 		It("return error if cannot configure FRR", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
-			os.Setenv(healthcheck.NodenameEnv, "test-node")
-
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			netlinkMock := mock_nl.NewMockToolkitInterface(mockctrl)
 			netlinkMock.EXPECT().LinkList().Return([]netlink.Link{}, nil)
@@ -325,13 +322,8 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 			Expect(r).ToNot(BeNil())
 			err = r.Reconcile(context.TODO())
 			Expect(err).To(HaveOccurred())
-			os.Unsetenv(healthcheck.NodenameEnv)
-			os.Unsetenv(operatorConfigEnv)
 		})
 		It("return error if failed to reload FRR", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
-			os.Setenv(healthcheck.NodenameEnv, "test-node")
-
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			netlinkMock := mock_nl.NewMockToolkitInterface(mockctrl)
 			netlinkMock.EXPECT().LinkList().Return([]netlink.Link{}, nil)
@@ -347,12 +339,8 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 			Expect(r).ToNot(BeNil())
 			err = r.Reconcile(context.TODO())
 			Expect(err).To(HaveOccurred())
-			os.Unsetenv(healthcheck.NodenameEnv)
-			os.Unsetenv(operatorConfigEnv)
 		})
 		It("return error if cannot configure networking", func() {
-			os.Setenv(operatorConfigEnv, testConfig)
-			os.Setenv(healthcheck.NodenameEnv, "test-node")
 			frrManagerMock := mock_frr.NewMockManagerInterface(mockctrl)
 			netlinkMock := mock_nl.NewMockToolkitInterface(mockctrl)
 			netlinkMock.EXPECT().LinkList().Return([]netlink.Link{}, nil).Times(3)
@@ -368,8 +356,6 @@ var _ = Describe("NodeNetworkConfigReconciler", func() {
 			Expect(r).ToNot(BeNil())
 			err = r.Reconcile(context.TODO())
 			Expect(err).To(HaveOccurred())
-			os.Unsetenv(healthcheck.NodenameEnv)
-			os.Unsetenv(operatorConfigEnv)
 		})
 	})
 })