@Test
public void testGetExtraHiddenFieldsNullMapFromProcessorResult() {

    // Set Mock behavior
    when(requestDataValueProcessor.getExtraHiddenFields(any(
            HttpServletRequest.class))).thenReturn(null);
    Map<String, String> map = compositeRequestDataValueProcessor
            .getExtraHiddenFields(request);
    assertThat(map, is(notNullValue()));
}