Iterable<String> iterable = singletonList("foo");
    assertEquals("foo", getOnlyElement(iterable));
  }

  public void testGetOnlyElement_noDefault_empty() {
    Iterable<String> iterable = emptyList();
    assertThrows(NoSuchElementException.class, () -> getOnlyElement(iterable));
  }

  public void testGetOnlyElement_noDefault_multiple() {
    Iterable<String> iterable = asList("foo", "bar");

text=foo...

  }

  public void testToString() {
    Multimap<String, Integer> multimap = create();
    multimap.put("foo", 3);
    multimap.put("bar", 1);
    multimap.putAll("foo", asList(-1, 2, 4));
    multimap.putAll("bar", asList(2, 3));
    multimap.put("foo", 1);
    assertEquals("{bar=[3, 2, 1], foo=[4, 3, 2, 1, -1]}", multimap.toString());
  }

  public void testGetComparator() {

    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');

    assertEquals("safe+with+spaces", e.escape("safe with spaces"));
    assertEquals("foo%40bar.com", e.escape("foo@bar.com"));
  }

  public void testUrlPathSegmentEscaper() {
    UnicodeEscaper e = (UnicodeEscaper) urlPathSegmentEscaper();
    assertPathEscaper(e);
    assertUnescaped(e, '+');
  }

        new Object() {
          @Subscribe
          public void eat(Object food) {
            objectEvents.add(food);
          }
        };

    List<Comparable<?>> compEvents = new ArrayList<>();
    Object compCatcher =
        new Object() {
          @Subscribe
          public void eat(Comparable<?> food) {
            compEvents.add(food);
          }
        };
    bus.register(stringCatcher);

 *
 * <p>For example:
 *
 * {@snippet :
 * new ForwardingWrapperTester().testForwarding(Foo.class, new Function<Foo, Foo>() {
 *   public Foo apply(Foo foo) {
 *     return new ForwardingFoo(foo);
 *   }
 * });
 * }
 *
 * @author Ben Yu
 * @since 14.0
 */
@GwtIncompatible
@J2ktIncompatible
@NullMarked

    assertTrue(set.isEmpty());
    set.add(new DerivedComparable("foo"), 2);
    set.add(new DerivedComparable("bar"), 3);
    assertThat(set)
        .containsExactly(
            new DerivedComparable("bar"),
            new DerivedComparable("bar"),
            new DerivedComparable("bar"),
            new DerivedComparable("foo"),
            new DerivedComparable("foo"))
        .inOrder();
  }

    assertEquals("Foo", new ClassInfo(FILE, "Foo.class", classLoader).getSimpleName());
    assertEquals("Foo", new ClassInfo(FILE, "a/b/Foo.class", classLoader).getSimpleName());
    assertEquals("Foo", new ClassInfo(FILE, "a/b/Bar$Foo.class", classLoader).getSimpleName());
    assertEquals("", new ClassInfo(FILE, "a/b/Bar$1.class", classLoader).getSimpleName());

  }

  @Override
  protected Map<String, Map<Integer, Character>> makePopulatedMap() {
    Table<Integer, String, Character> table = HashBasedTable.create();
    table.put(1, "foo", 'a');
    table.put(1, "bar", 'b');
    table.put(3, "foo", 'c');
    return unmodifiableTable(table).columnMap();
  }

     * <th>{@literal Map} Property Name</th>
     * </tr>
     * <tr>
     * <td>{@literal foo}</td>
     * <td>{@literal foo}</td>
     * </tr>
     * <tr>
     * <td>{@literal foo_bar}</td>
     * <td>{@literal foo.bar}</td>
     * </tr>
     * <tr>
     * <td>{@literal foo_bar_baz}</td>
     * <td>{@literal foo.bar.baz}</td>
     * </tr>
     * </table>
     *
     * @param beanDelimiter