}

  public void testCheckNonNegative_positiveInt() {
    MathPreconditions.checkNonNegative("int", 1);
  }

  public void testCheckNonNegative_negativeInt() {
    assertThrows(
        IllegalArgumentException.class, () -> MathPreconditions.checkNonNegative("int", -1));
  }

  public void testCheckNonNegative_zeroLong() {