assertTrue(it.hasNext());
        assertEquals("x", it.next().getName());
    }

    @Test
    @DisplayName("Empty initial results with end-of-search -> closes immediately")
    void emptyInitialResultsEndOfSearchCloses() throws Exception {
        when(tree.send(any(Trans2FindFirst2.class), any(Trans2FindFirst2Response.class))).thenAnswer((InvocationOnMock inv) -> {
            Trans2FindFirst2Response resp = inv.getArgument(1);