Line data    Source code

       1             : // Copyright (c) 2012-2013 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include "compressor.h"
       6             : #include "util.h"
       7             : #include "test/test_bitcoin.h"
       8             : 
       9             : #include <stdint.h>
      10             : 
      11             : #include <boost/test/unit_test.hpp>
      12             : 
      13             : // amounts 0.00000001 .. 0.00100000
      14             : #define NUM_MULTIPLES_UNIT 100000
      15             : 
      16             : // amounts 0.01 .. 100.00
      17             : #define NUM_MULTIPLES_CENT 10000
      18             : 
      19             : // amounts 1 .. 10000
      20             : #define NUM_MULTIPLES_1BTC 10000
      21             : 
      22             : // amounts 50 .. 21000000
      23             : #define NUM_MULTIPLES_50BTC 420000
      24             : 
      25           1 : BOOST_FIXTURE_TEST_SUITE(compress_tests, BasicTestingSetup)
      26             : 
      27      540000 : bool static TestEncode(uint64_t in) {
      28      540000 :     return in == CTxOutCompressor::DecompressAmount(CTxOutCompressor::CompressAmount(in));
      29             : }
      30             : 
      31      100000 : bool static TestDecode(uint64_t in) {
      32      100000 :     return in == CTxOutCompressor::CompressAmount(CTxOutCompressor::DecompressAmount(in));
      33             : }
      34             : 
      35           6 : bool static TestPair(uint64_t dec, uint64_t enc) {
      36          12 :     return CTxOutCompressor::CompressAmount(dec) == enc &&
      37          12 :            CTxOutCompressor::DecompressAmount(enc) == dec;
      38             : }
      39             : 
      40           6 : BOOST_AUTO_TEST_CASE(compress_amounts)
      41             : {
      42           7 :     BOOST_CHECK(TestPair(            0,       0x0));
      43           8 :     BOOST_CHECK(TestPair(            1,       0x1));
      44           8 :     BOOST_CHECK(TestPair(         CENT,       0x7));
      45           8 :     BOOST_CHECK(TestPair(         COIN,       0x9));
      46           8 :     BOOST_CHECK(TestPair(      50*COIN,      0x32));
      47           8 :     BOOST_CHECK(TestPair(21000000*COIN, 0x1406f40));
      48             : 
      49      100000 :     for (uint64_t i = 1; i <= NUM_MULTIPLES_UNIT; i++)
      50      800000 :         BOOST_CHECK(TestEncode(i));
      51             : 
      52       10000 :     for (uint64_t i = 1; i <= NUM_MULTIPLES_CENT; i++)
      53       80000 :         BOOST_CHECK(TestEncode(i * CENT));
      54             : 
      55       10000 :     for (uint64_t i = 1; i <= NUM_MULTIPLES_1BTC; i++)
      56       80000 :         BOOST_CHECK(TestEncode(i * COIN));
      57             : 
      58      420000 :     for (uint64_t i = 1; i <= NUM_MULTIPLES_50BTC; i++)
      59     3360000 :         BOOST_CHECK(TestEncode(i * 50 * COIN));
      60             : 
      61      100000 :     for (uint64_t i = 0; i < 100000; i++)
      62      800000 :         BOOST_CHECK(TestDecode(i));
      63           1 : }
      64             : 
      65           3 : BOOST_AUTO_TEST_SUITE_END()