@Test
public void getNothingSumByReimbursementIfOneType() {

    entries = new ArrayList<>();
    entries.add(new LabeledGraphEntry(10, context.getString(R.string.graphs_label_reimbursable)));
    when(groupingController.getSummationByReimbursementAsGraphEntries(trip)).thenReturn(Single.just(entries));
    interactor.getSummationByReimbursement(trip)
            .test()
            .assertNoErrors()
            .assertComplete()
            .assertNoValues();
}