unicode = "упр.срб",
      punycode = "xn--o1ach.xn--90a3ac",
    )
  }

  @Test fun nonBasicCodePointInPrefix() {
    assertNull(Punycode.decode("xn--cåt-n3h"))
  }

  @Test fun nonBasicCodePointInInsertionCoding() {
    assertNull(Punycode.decode("xn--cat-ñ3h"))
  }

  @Test fun unterminatedCodePoint() {
    assertNull(Punycode.decode("xn--cat-n"))
  }

  @Test fun overflowI() {