sclass Test_HuffmanByteArray {

  gettable HuffmanByteArray array;

  gettable HuffmanByteArray restoredArray;

  gettable byte[] compressed;

  void test(int... dataInts) {

    byte[] data = convertIntArrayToByteArray(dataInts);

    print("=============");

    printWithIndent("DATA | ", spaceIfEmpty(hexDump(data)));

    array = new HuffmanByteArray(data);

    compressed = array.toByteArray();

    printWithIndent("COMP | ", hexDump(compressed));

    restoredArray = new HuffmanByteArray().fromByteArray(compressed);

    printWithIndent("REST | ", spaceIfEmpty(hexDump(restoredArray!)));

    assertByteArrayEquals(data, restoredArray!);

    //printWithIndent(" OK  | ", spaceIfEmpty(hexDump(data)));

  }

  run {

    test(); // empty array

    // try every single byte

    for (int i = 0; i < 256; i++)

      test((byte) i);

    // try some longer patterns

    test(0, 0);

    test(0, 1);

    test(0, 1, 2);

    test(3, 3, 4, 5);

  }

}