assertThat(UnsignedInts.decode("0X13579135")).isEqualTo(0x13579135);
    assertThat(UnsignedInts.decode("0")).isEqualTo(0);
  }

  public void testDecodeIntFails() {
    assertThrows(NumberFormatException.class, () -> UnsignedInts.decode("0xfffffffff"));

    assertThrows(NumberFormatException.class, () -> UnsignedInts.decode("-5"));