return suite;
  }

  // Creation tests

  public void testCreation_noArgs() {
    List<String> list = ImmutableList.of();
    assertEquals(emptyList(), list);
  }

  public void testCreation_oneElement() {
    List<String> list = ImmutableList.of("a");
    assertEquals(singletonList("a"), list);
  }

  public void testCreation_twoElements() {
    List<String> list = ImmutableList.of("a", "b");

    }

    @Override
    public void beforeProjectExecution(ProjectExecutionEvent projectExecutionEvent)
            throws LifecycleExecutionException {}

    @Override
    public void beforeProjectLifecycleExecution(ProjectExecutionEvent projectExecutionEvent)
            throws LifecycleExecutionException {}

    @Override
    public void afterProjectExecutionSuccess(ProjectExecutionEvent projectExecutionEvent)

  public void testConstructor_anonymousClass() {
    String toTest = MoreObjects.toStringHelper(new Object() {}).toString();
    assertEquals("{}", toTest);
  }

  public void testConstructorLenient_anonymousClass() {
    String toTest = MoreObjects.toStringHelper(new Object() {}).toString();
    assertTrue(toTest, toTest.matches(".*\\{\\}"));
  }

  @GwtIncompatible // Class names are obfuscated in GWT

```Python
say_hi(name=None)  # This works, None is valid 🎉
```

A boa notícia é, quando você estiver no Python 3.10 você não precisará se preocupar mais com isso, pois você poderá simplesmente utilizar o `|` para definir uniões de tipos:

{* ../../docs_src/python_types/tutorial009c_py310.py hl[1,4] *}

E então você não precisará mais se preocupar com nomes como `Optional` e `Union`. 😎

#### Tipos genéricos { #generic-types }

 */
public class TimestampConversionUtilTest {

    @Before
    public void setUp() throws Exception {
        LocaleUtil.setDefault(() -> Locale.JAPANESE);
    }

    @After
    public void tearDown() throws Exception {
        LocaleUtil.setDefault(null);
    }

    /**
     * @throws Exception
     */
    //    @Test
    //    public void testToDate_Null() throws Exception {

        @Override
        public void execute(Runnable command) {}
      };
    }

    @Override
    protected void run() throws Exception {}
  }

  public void testStopWhileStarting_runNotCalled() throws Exception {
    CountDownLatch started = new CountDownLatch(1);
    FakeService service =
        new FakeService() {
          @Override
          protected void startUp() throws Exception {

  }

  public void testEmpty_tailSet() {
    SortedSet<String> set = of();
    assertSame(set, set.tailSet("f"));
  }

  public void testEmpty_subSet() {
    SortedSet<String> set = of();
    assertSame(set, set.subSet("c", "f"));
  }

  public void testEmpty_first() {
    SortedSet<String> set = of();
    assertThrows(NoSuchElementException.class, () -> set.first());
  }

  public void testEmpty_last() {

            }

            @Override
            public void setCommand(int command) {
                this.command = command;
            }

            @Override
            public void setUid(int uid) {
                // Implementation
            }

            @Override
            public void setExtendedSecurity(boolean extendedSecurity) {
                // Implementation

 */
class StringUtilTest {

    @Test
    @DisplayName("Should join single element without delimiter")
    void testJoinSingleElement() {
        String result = StringUtil.join(",", "hello");
        assertEquals("hello", result);
    }

    @Test
    @DisplayName("Should join two elements with delimiter")
    void testJoinTwoElements() {
        String result = StringUtil.join(",", "hello", "world");

    }
  }

  public void testFloorPowerOfTwoNegative() {
    for (int x : NEGATIVE_INTEGER_CANDIDATES) {
      assertThrows(IllegalArgumentException.class, () -> IntMath.floorPowerOfTwo(x));
    }
  }

  public void testCeilingPowerOfTwoZero() {
    assertThrows(IllegalArgumentException.class, () -> IntMath.ceilingPowerOfTwo(0));
  }

  public void testFloorPowerOfTwoZero() {