jsonStr, err := json.Marshal(data)
	if err != nil {
		t.Fatalf("failed to marshal %s %v: %v", name, data, err)
	}
	return IstioMetaJSONPrefix + name + "=" + string(jsonStr)
}

func TestNodeMetadataEncodeEnvWithIstioMetaPrefix(t *testing.T) {
	originalKey := "foo"
	notIstioMetaKey := "NOT_AN_" + IstioMetaPrefix + originalKey
	anIstioMetaKey := IstioMetaPrefix + originalKey
	envs := []string{
		notIstioMetaKey + "=bar",