*/
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");

            @Override
            public void sendError(int sc, String msg) throws IOException {
            }

            @Override
            public void sendError(int sc) throws IOException {
            }

            @Override
            public void sendRedirect(String location) throws IOException {
            }

            @Override
            public void setDateHeader(String name, long date) {

  static final int MAX_SIZE = 100;

  public void testEviction_setMaxSegmentSize() {
    IdentityLoader<Object> loader = identityLoader();
    for (int i = 1; i < 1000; i++) {
      LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().maximumSize(i).build(loader);
      assertEquals(i, CacheTesting.getTotalSegmentSize(cache));
    }
  }

  public void testEviction_setMaxSegmentWeight() {

     * @param argValue
     *            The value of the argument.
     * @throws NullArgumentException
     *             If the argument is <code>null</code>.
     */
    public static void assertArgumentNotNull(final String argName, final Object argValue) {
        if (argValue == null) {
            throw new NullArgumentException(argName);
        }
    }

    /**

        @Override
        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_referent(entry_path, 1);

            if (entry_path != null) {
                _dst = _dst.deferred;
                _dst.enc_ndr_string(entry_path);

            }
        }

        @Override
        public void decode(NdrBuffer _src) throws NdrException {

  }

  public void testPadToLongWith4Bytes() {
    assertEquals(0x0000000099999999L, HashCode.fromBytesNoCopy(byteArrayWith9s(4)).padToLong());
  }

  public void testPadToLongWith6Bytes() {
    assertEquals(0x0000999999999999L, HashCode.fromBytesNoCopy(byteArrayWith9s(6)).padToLong());
  }

  public void testPadToLongWith8Bytes() {

    final Queue<Runnable> tasks = new ArrayDeque<>();

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

    boolean hasNext() {
      return !tasks.isEmpty();
    }

    void runNext() {
      assertTrue("expected at least one task to run", hasNext());
      tasks.remove().run();
    }

    void runAll() {
      while (hasNext()) {
        runNext();
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testUsAscii() {
    assertEquals(Charset.forName("US-ASCII"), Charsets.US_ASCII);
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testIso88591() {
    assertEquals(Charset.forName("ISO-8859-1"), Charsets.ISO_8859_1);
  }

  public void testUtf8() {
    assertEquals(Charset.forName("UTF-8"), Charsets.UTF_8);
  }

    stack.addTearDown(
        new TearDown() {
          @Override
          public void tearDown() throws Exception {
            ExampleClassUnderTest.logger.setUseParentHandlers(true);
            ExampleClassUnderTest.logger.removeHandler(handler);
          }
        });
  }

  public void test() throws Exception {
    assertTrue(handler.getStoredLogRecords().isEmpty());
    ExampleClassUnderTest.foo();

  private static final Object OBJECT = new Object();

  public void testNewReference() throws Exception {
    assertEquals(null, Atomics.newReference().get());
  }

  public void testNewReference_withInitialValue() throws Exception {
    assertEquals(null, Atomics.newReference(null).get());
    assertEquals(OBJECT, Atomics.newReference(OBJECT).get());
  }

  public void testNewReferenceArray_withLength() throws Exception {