try {
      equalsTester.testEquals();
    } catch (AssertionFailedError e) {
      assertErrorMessage(
          e,
          equalObject1
              + " [group 1, item 1] must be Object#equals to "
              + notEqualObject1
              + " [group 1, item 2]");
      return;
    }
    fail("Should get not equal to equal object error");
  }

  /**

    assertThat(expected).hasMessageThat().isEqualTo("index (-1) must not be negative");
  }

  public void testCheckElementIndex_tooHigh() {
    IndexOutOfBoundsException expected =
        assertThrows(IndexOutOfBoundsException.class, () -> checkElementIndex(1, 1));
    assertThat(expected).hasMessageThat().isEqualTo("index (1) must be less than size (1)");
  }

  val decoded = Punycode.decode(bufferA.readUtf8()) ?: return null

  // 4.1 Validate.

  // Must be NFC.
  if (decoded != normalizeNfc(decoded)) return null

  // TODO: Must not begin with a combining mark.
  // TODO: Each character must be 'valid' or 'deviation'. Not mapped.
  // TODO: CheckJoiners from IDNA 2008
  // TODO: CheckBidi from IDNA 2008, RFC 5893, Section 2.

        // Assert
        assertNotNull(table, "DOS_ERROR_CODES must not be null");
        assertTrue(table.length > 0, "DOS_ERROR_CODES must not be empty");
        for (int i = 0; i < table.length; i++) {
            int[] pair = table[i];
            assertNotNull(pair, "row " + i + " must not be null");
            assertEquals(2, pair.length, "row " + i + " must be [dos, ntstatus]");
        }
    }

    @Test

// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the

   *
   * @param key the non-null key whose value should be loaded
   * @param oldValue the non-null old value corresponding to {@code key}
   * @return the future new value associated with {@code key}; <b>must not be null, must not return
   *     null</b>
   * @throws Exception if unable to reload the result
   * @throws InterruptedException if this method is interrupted. {@code InterruptedException} is

     * @param throwable
     *            Exception. Must not be {@literal null}.
     */
    public void log(final Throwable throwable) {
        assertArgumentNotNull("throwable", throwable);

        error(throwable.getMessage(), throwable);
    }

    /**
     * Outputs a log entry.
     *
     * @param messageCode
     *            Message code. Must not be {@literal null} or empty string.
     * @param args

     *
     * @param algorithm
     *            The algorithm (refer to the Javadoc of {@link MessageDigest} for available algorithms).
     *            Must not be {@literal null} or an empty string.
     * @return {@link MessageDigest}
     * @throws RuntimeException
     *             If a {@link NoSuchAlgorithmException} occurs
     */

       */
      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(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),

       */
      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(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),