Add CORS policy test

pkg/router/istio_test.go

@@ -192,7 +192,6 @@ func TestIstioRouter_HTTPRequestHeaders(t *testing.T) {
 		t.Fatal(err.Error())
 	}
 
-	// test insert
 	vs, err := mocks.istioClient.NetworkingV1alpha3().VirtualServices("default").Get("podinfo", metav1.GetOptions{})
 	if err != nil {
 		t.Fatal(err.Error())
@@ -207,3 +206,36 @@ func TestIstioRouter_HTTPRequestHeaders(t *testing.T) {
 		t.Errorf("Got timeout %v wanted %v", timeout, "15000")
 	}
 }
+
+func TestIstioRouter_CORS(t *testing.T) {
+	mocks := setupfakeClients()
+	router := &IstioRouter{
+		logger:        mocks.logger,
+		flaggerClient: mocks.flaggerClient,
+		istioClient:   mocks.istioClient,
+		kubeClient:    mocks.kubeClient,
+	}
+
+	err := router.Sync(mocks.canary)
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	vs, err := mocks.istioClient.NetworkingV1alpha3().VirtualServices("default").Get("podinfo", metav1.GetOptions{})
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if len(vs.Spec.Http) != 1 {
+		t.Fatalf("Got HTTPRoute %v wanted %v", len(vs.Spec.Http), 1)
+	}
+
+	if vs.Spec.Http[0].CorsPolicy == nil {
+		t.Fatal("Got not CORS policy")
+	}
+
+	methods := vs.Spec.Http[0].CorsPolicy.AllowMethods
+	if len(methods) != 2 {
+		t.Fatalf("Got CORS allow methods %v wanted %v", len(methods), 2)
+	}
+}

pkg/router/router_test.go

@@ -65,6 +65,12 @@ func newMockCanary() *v1alpha3.Canary {
 						},
 					},
 				},
+				CorsPolicy: &istiov1alpha3.CorsPolicy{
+					AllowMethods: []string{
+						"GET",
+						"POST",
+					},
+				},
 			}, CanaryAnalysis: v1alpha3.CanaryAnalysis{
 				Threshold:  10,
 				StepWeight: 10,