text: // Copyright (c) 2012-2015 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "compressor.h"
  #include "util.h"
  #include "test/test_idoprofitidocoke.h"
  
  #include <stdint.h>
  
  #include <boost/test/unit_test.hpp>
  
  // amounts 0.00000001 .. 0.00100000
  #define NUM_MULTIPLES_UNIT 100000
  
  // amounts 0.01 .. 100.00
  #define NUM_MULTIPLES_CENT 10000
  
  // amounts 1 .. 10000
  #define NUM_MULTIPLES_1BTC 10000
  
  // amounts 50 .. 21000000
  #define NUM_MULTIPLES_50BTC 420000
  
  BOOST_FIXTURE_TEST_SUITE(compress_tests, BasicTestingSetup)
  
  bool static TestEncode(uint64_t in) {
      return in == CTxOutCompressor::DecompressAmount(CTxOutCompressor::CompressAmount(in));
  }
  
  bool static TestDecode(uint64_t in) {
      return in == CTxOutCompressor::CompressAmount(CTxOutCompressor::DecompressAmount(in));
  }
  
  bool static TestPair(uint64_t dec, uint64_t enc) {
      return CTxOutCompressor::CompressAmount(dec) == enc &&
             CTxOutCompressor::DecompressAmount(enc) == dec;
  }
  
  BOOST_AUTO_TEST_CASE(compress_amounts)
  {
      BOOST_CHECK(TestPair(            0,       0x0));
      BOOST_CHECK(TestPair(            1,       0x1));
      BOOST_CHECK(TestPair(         CENT,       0x7));
      BOOST_CHECK(TestPair(         COIN,       0x9));
      BOOST_CHECK(TestPair(      50*COIN,      0x32));
      BOOST_CHECK(TestPair(21000000*COIN, 0x1406f40));
  
      for (uint64_t i = 1; i <= NUM_MULTIPLES_UNIT; i++)
          BOOST_CHECK(TestEncode(i));
  
      for (uint64_t i = 1; i <= NUM_MULTIPLES_CENT; i++)
          BOOST_CHECK(TestEncode(i * CENT));
  
      for (uint64_t i = 1; i <= NUM_MULTIPLES_1BTC; i++)
          BOOST_CHECK(TestEncode(i * COIN));
  
      for (uint64_t i = 1; i <= NUM_MULTIPLES_50BTC; i++)
          BOOST_CHECK(TestEncode(i * 50 * COIN));
  
      for (uint64_t i = 0; i < 100000; i++)
          BOOST_CHECK(TestDecode(i));
  }
  
  BOOST_AUTO_TEST_SUITE_END()
  