return mockResource1;
            }
        };

        // When/Then
        assertTrue(iterator.hasNext(), "First hasNext should return true");
        assertTrue(iterator.hasNext(), "Second hasNext should return true");
        assertTrue(iterator.hasNext(), "Third hasNext should return true");

        SmbResource result = iterator.next();
        assertNotNull(result, "Should still be able to get element");

    }

    @Test
    @DisplayName("hasNext should always return false")
    void testHasNextAlwaysReturnsFalse() {
        // When & Then
        assertFalse(emptyIterator.hasNext(), "hasNext should return false");
        assertFalse(emptyIterator.hasNext(), "hasNext should consistently return false");
        assertFalse(emptyIterator.hasNext(), "hasNext should always return false on repeated calls");
    }

    @Test

    assertThat(routeSelector.hasNext()).isTrue()
    dns[uriHost] = dns.allocate(2)
    val selection = routeSelector.next()
    assertRoute(selection.next(), address, Proxy.NO_PROXY, dns.lookup(uriHost, 0), uriPort)
    assertRoute(selection.next(), address, Proxy.NO_PROXY, dns.lookup(uriHost, 1), uriPort)
    assertThat(selection.hasNext()).isFalse()
    assertThat(routeSelector.hasNext()).isFalse()
    dns.assertRequests(uriHost)

        // Act + Assert
        assertTrue(it.hasNext());
        assertEquals("a", it.next().getName(), "First element should be initial from open()");
        assertTrue(it.hasNext());
        assertEquals("b", it.next().getName(), "Next element should skip '.' and '..'");
        assertFalse(it.hasNext(), "Iterator exhausted after valid entries");

        // Setup: constructor calls advance() once
        when(delegate.hasNext()).thenReturn(true, false);
        when(delegate.next()).thenReturn(fileEntry);

        TestIterator iterator = new TestIterator(null);

        // Verify iteration
        assertTrue(iterator.hasNext());
        assertSame(resource, iterator.next());
        assertFalse(iterator.hasNext());
        assertNull(iterator.next());

        // 1.3-compatible.
        final StringBuilder buffer = new StringBuilder();
        final Iterator propertyValues = values.iterator();
        while (propertyValues.hasNext()) {
            buffer.append(propertyValues.next());
            if (propertyValues.hasNext()) {
                buffer.append(", ");
            }
        }
        connection.setRequestProperty(key, buffer.toString());
    }

    @Override

        // Act & Assert: entries a, b, c (dot entries filtered) then end
        assertTrue(it.hasNext());
        assertEquals("a", it.next().getName());
        assertTrue(it.hasNext());
        assertEquals("b", it.next().getName());
        assertTrue(it.hasNext());
        assertEquals("c", it.next().getName());
        assertFalse(it.hasNext());

        // Verify interactions

    }

    // If we have a routes left, use 'em.
    if (routeSelection?.hasNext() == true) return true

    // If we haven't initialized the route selector yet, assume it'll have at least one route.
    val localRouteSelector = routeSelector ?: return true

    // If we do have a route selector, use its routes.
    return localRouteSelector.hasNext()
  }

  /**

    while (expectedIter.hasNext() && actualIter.hasNext()) {
      if (!equal(expectedIter.next(), actualIter.next())) {
        fail(
            "contents were not equal and in the same order: "
                + "expected = "
                + expected
                + ", actual = "
                + actual);
      }
    }

    if (expectedIter.hasNext() || actualIter.hasNext()) {

    Iterator<Entry<K, Collection<V>>> entryIterator = unfiltered.asMap().entrySet().iterator();
    boolean changed = false;
    while (entryIterator.hasNext()) {
      Entry<K, Collection<V>> entry = entryIterator.next();
      K key = entry.getKey();
      Collection<V> collection = filterCollection(entry.getValue(), new ValuePredicate(key));
      if (!collection.isEmpty()