# gzip-like LZSS compressor
# Copyright (C) 2018  Pacien TRAN-GIRARD
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import unittest, streams, sequtils, tables
import huffman/huffmantree, huffman/huffmantreebuilder

suite "huffmantreebuilder":
  let
    stats = newCountTable(concat(repeat(1'u, 3), repeat(2'u, 1), repeat(3'u, 2)))
    tree = huffmanBranch(
      huffmanLeaf(1'u),
      huffmanBranch(
        huffmanLeaf(2'u),
        huffmanLeaf(3'u)))
  
  test "buildHuffmanTree":
    check buildHuffmanTree(stats) == tree