* since the Equivalence base type now implements this logic itself
       */
      assertTrue(item + " must be inequivalent to null", !equivalence.equivalent(item, null));
      assertTrue("null must be inequivalent to " + item, !equivalence.equivalent(null, item));
      assertTrue(item + " must be equivalent to itself", equivalence.equivalent(item, item));
      assertEquals(

  }

  public void testOf_one() {
    Iterable<String> iterable = MinimalIterable.of("a");
    Iterator<String> iterator = iterable.iterator();
    assertTrue(iterator.hasNext());
    assertEquals("a", iterator.next());
    assertFalse(iterator.hasNext());
    assertThrows(NoSuchElementException.class, () -> iterator.next());

  }

  public void testCartesianProduct_contains() {
    Set<List<Integer>> actual = cartesianProduct(set(1, 2), set(3, 4));
    assertTrue(actual.contains(list(1, 3)));
    assertTrue(actual.contains(list(1, 4)));
    assertTrue(actual.contains(list(2, 3)));
    assertTrue(actual.contains(list(2, 4)));
    assertFalse(actual.contains(list(3, 1)));
  }

  public void testCartesianProduct_equals() {

    assertTrue(manager.isHealthy());
    assertTrue(listener.healthyCalled);
    assertFalse(listener.stoppedCalled);
    assertTrue(listener.failedServices.isEmpty());
    manager.stopAsync().awaitStopped();
    assertState(manager, Service.State.TERMINATED, a, b);
    assertFalse(manager.isHealthy());
    assertTrue(listener.stoppedCalled);
    assertTrue(listener.failedServices.isEmpty());
  }

  public void testEntrySetIteratorRemove() {
    Set<Entry<K, V>> entrySet = getMap().entrySet();
    Iterator<Entry<K, V>> entryItr = entrySet.iterator();
    assertEquals(e0(), entryItr.next());
    entryItr.remove();
    assertTrue(getMap().isEmpty());
    assertFalse(entrySet.contains(e0()));
  }

  public void testContainsEntryWithIncomparableKey() {
    try {

  public void testEntrySetIteratorRemove() {
    Set<Entry<K, V>> entrySet = getMap().entrySet();
    Iterator<Entry<K, V>> entryItr = entrySet.iterator();
    assertEquals(e0(), entryItr.next());
    entryItr.remove();
    assertTrue(getMap().isEmpty());
    assertFalse(entrySet.contains(e0()));
  }

  public void testContainsEntryWithIncomparableKey() {
    try {

            assertEquals("UTF-8", responseData.getCharSet());
            assertTrue(6 == responseData.getContentLength());
            assertNotNull(responseData.getLastModified());
            assertEquals(Constants.GET_METHOD, responseData.getMethod());
            assertEquals("text/plain", responseData.getMimeType());
            assertTrue(responseData.getUrl().endsWith("text1.txt"));

        String value;

        value = "hoge.html";
        assertTrue(htmlTransformer.isValidPath(value));

        value = "./hoge.html";
        assertTrue(htmlTransformer.isValidPath(value));

        value = "/hoge.html";
        assertTrue(htmlTransformer.isValidPath(value));

        value = "http://www.seasar.org/hoge.html";
        assertTrue(htmlTransformer.isValidPath(value));

    TestMap map = new TestMap();
    map.put("foo", 1);
    assertFalse(map.remove("foo", 2));
    assertFalse(map.remove("bar", 1));
    assertEquals(Integer.valueOf(1), map.get("foo"));
    assertTrue(map.remove("foo", 1));
    assertTrue(map.isEmpty());
  }

  public void testReplace() {
    TestMap map = new TestMap();
    map.put("foo", 1);
    assertEquals(Integer.valueOf(1), map.replace("foo", 2));

        }
      }

      for (N adjacentNode : sanityCheckSet(network.adjacentNodes(node))) {
        assertTrue(
            network.predecessors(node).contains(adjacentNode)
                || network.successors(node).contains(adjacentNode));
        assertTrue(
            !network.edgesConnecting(node, adjacentNode).isEmpty()
                || !network.edgesConnecting(adjacentNode, node).isEmpty());