merge_test.go

package crdclient

func TestGenMergePatch(t *testing.T) {
	existing := &clientnetworkingv1alpha3.WorkloadEntry{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "foo-we",
			Namespace: "ns",
			Labels: map[string]string{
				"oldlabel": "oldvalue",
			},
			UID:             "12345678",
			ResourceVersion: "1",
		},
		Spec: v1alpha3.WorkloadEntry{
			Labels: map[string]string{
				"oldlabel": "oldvalue",
			},
		},
	}

	modified := &clientnetworkingv1alpha3.WorkloadEntry{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "foo-we",
			Namespace: "ns",
			Labels: map[string]string{
				"newlabel": "newvalue",
			},
			UID:             "12345678",
			ResourceVersion: "1",
		},
		Spec: v1alpha3.WorkloadEntry{
			Labels: map[string]string{
				"newlabel": "newvalue",
			},
		},
	}
	bytes, _ := genPatchBytes(existing, modified, types.MergePatchType)
	fmt.Println(string(bytes))
}