testPodUID := types.UID("test_pod_uid")
	testPodName := "podName"

	cases := []struct {
		name       string
		volumeFile []v1.DownwardAPIVolumeFile
		pod        *v1.Pod
		mode       int32
		payload    map[string]util.FileProjection
		success    bool
	}{
		{
			name: "annotation",
			volumeFile: []v1.DownwardAPIVolumeFile{
				{Path: "annotation", FieldRef: &v1.ObjectFieldSelector{