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);
  }
}