@Test
public void putSingleObjectPropertyNullValue() {

    BdioContext context = DEFAULT_CONTEXT;
    Map<String, Object> map = new LinkedHashMap<>();
    context.putFieldValue(map, Bdio.ObjectProperty.parent, BdioObject.randomId());
    assertThat(context.putFieldValue(map, Bdio.ObjectProperty.parent, null)).isNull();
    assertThat(map).doesNotContainKey(Bdio.ObjectProperty.parent.toString());
}