diff --git a/nginx-controller/controller/controller_test.go b/nginx-controller/controller/controller_test.go
new file mode 100644
index 0000000000..6bd853811f
--- /dev/null
+++ b/nginx-controller/controller/controller_test.go
@@ -0,0 +1,146 @@
+package controller
+
+import (
+	extensions "k8s.io/api/extensions/v1beta1"
+	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"testing"
+)
+
+func TestIsNginxIngress(t *testing.T) {
+	ingressClass := "ing-ctrl"
+
+	var testsWithoutIngressClassOnly = []struct {
+		lbc      *LoadBalancerController
+		ing      *extensions.Ingress
+		expected bool
+	}{
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: false,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: ""},
+				},
+			},
+			true,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: false,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: "gce"},
+				},
+			},
+			false,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: false,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: ingressClass},
+				},
+			},
+			true,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: false,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{},
+				},
+			},
+			true,
+		},
+	}
+
+	var testsWithIngressClassOnly = []struct {
+		lbc      *LoadBalancerController
+		ing      *extensions.Ingress
+		expected bool
+	}{
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: true,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: ""},
+				},
+			},
+			false,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: true,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: "gce"},
+				},
+			},
+			false,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: true,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{ingressClassKey: ingressClass},
+				},
+			},
+			true,
+		},
+		{
+			&LoadBalancerController{
+				ingressClass:        ingressClass,
+				useIngressClassOnly: true,
+			},
+			&extensions.Ingress{
+				ObjectMeta: meta_v1.ObjectMeta{
+					Annotations: map[string]string{},
+				},
+			},
+			false,
+		},
+		
+	}
+	
+
+	for _, test := range testsWithoutIngressClassOnly {
+		if result := test.lbc.isNginxIngress(test.ing); result != test.expected {
+			classAnnotation := "N/A"
+			if class, exists := test.ing.Annotations[ingressClassKey]; exists {
+				classAnnotation = class
+			}
+			t.Errorf("lbc.isNginxIngress(ing), lbc.ingressClass=%v, lbc.useIngressClassOnly=%v, ing.Annotations['%v']=%v; got %v, expected %v",
+				test.lbc.ingressClass, test.lbc.useIngressClassOnly, ingressClassKey, classAnnotation, result, test.expected)
+		}
+	}
+
+	for _, test := range testsWithIngressClassOnly {
+		if result := test.lbc.isNginxIngress(test.ing); result != test.expected {
+			classAnnotation := "N/A"
+			if class, exists := test.ing.Annotations[ingressClassKey]; exists {
+				classAnnotation = class
+			}
+			t.Errorf("lbc.isNginxIngress(ing), lbc.ingressClass=%v, lbc.useIngressClassOnly=%v, ing.Annotations['%v']=%v; got %v, expected %v",
+				test.lbc.ingressClass, test.lbc.useIngressClassOnly, ingressClassKey, classAnnotation, result, test.expected)
+		}
+	}
+
+}