  @Test
  public void resolveMissingApisProps() {

    T props = copy(mockProps);
    props.setResponders(null);
    Resolved<Set<T>> resolved = propertiesResolver
        .resolve(Collections.singletonList(props), mockDefProps);
    assertThat(resolved.isErr()).isFalse();
    assertThat(resolved.succ()).hasSize(1);
  }