Line data    Source code

       1             : // Copyright (c) 2016-2019 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 <amount.h>
       6             : #include <policy/feerate.h>
       7             : #include <test/util/setup_common.h>
       8             : 
       9             : #include <boost/test/unit_test.hpp>
      10             : 
      11          89 : BOOST_FIXTURE_TEST_SUITE(amount_tests, BasicTestingSetup)
      12             : 
      13          95 : BOOST_AUTO_TEST_CASE(MoneyRangeTest)
      14             : {
      15           1 :     BOOST_CHECK_EQUAL(MoneyRange(CAmount(-1)), false);
      16           1 :     BOOST_CHECK_EQUAL(MoneyRange(CAmount(0)), true);
      17           1 :     BOOST_CHECK_EQUAL(MoneyRange(CAmount(1)), true);
      18           1 :     BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
      19           1 :     BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + CAmount(1)), false);
      20           1 : }
      21             : 
      22          95 : BOOST_AUTO_TEST_CASE(GetFeeTest)
      23             : {
      24           1 :     CFeeRate feeRate, altFeeRate;
      25             : 
      26           1 :     feeRate = CFeeRate(0);
      27             :     // Must always return 0
      28           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
      29           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1e5), CAmount(0));
      30             : 
      31           1 :     feeRate = CFeeRate(1000);
      32             :     // Must always just return the arg
      33           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
      34           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(1));
      35           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(121));
      36           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(999));
      37           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(1e3));
      38           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(9e3));
      39             : 
      40           1 :     feeRate = CFeeRate(-1000);
      41             :     // Must always just return -1 * arg
      42           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
      43           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(-1));
      44           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(-121));
      45           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(-999));
      46           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(-1e3));
      47           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(-9e3));
      48             : 
      49           1 :     feeRate = CFeeRate(123);
      50             :     // Truncates the result, if not integer
      51           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
      52           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(1)); // Special case: returns 1 instead of 0
      53           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(1));
      54           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(14));
      55           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(15));
      56           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(122));
      57           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(123));
      58           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(1107));
      59             : 
      60           1 :     feeRate = CFeeRate(-123);
      61             :     // Truncates the result, if not integer
      62           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
      63           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(-1)); // Special case: returns -1 instead of 0
      64           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(-1));
      65             : 
      66             :     // check alternate constructor
      67           1 :     feeRate = CFeeRate(1000);
      68           1 :     altFeeRate = CFeeRate(feeRate);
      69           1 :     BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));
      70             : 
      71             :     // Check full constructor
      72           1 :     BOOST_CHECK(CFeeRate(CAmount(-1), 0) == CFeeRate(0));
      73           1 :     BOOST_CHECK(CFeeRate(CAmount(0), 0) == CFeeRate(0));
      74           1 :     BOOST_CHECK(CFeeRate(CAmount(1), 0) == CFeeRate(0));
      75             :     // default value
      76           1 :     BOOST_CHECK(CFeeRate(CAmount(-1), 1000) == CFeeRate(-1));
      77           1 :     BOOST_CHECK(CFeeRate(CAmount(0), 1000) == CFeeRate(0));
      78           1 :     BOOST_CHECK(CFeeRate(CAmount(1), 1000) == CFeeRate(1));
      79             :     // lost precision (can only resolve satoshis per kB)
      80           1 :     BOOST_CHECK(CFeeRate(CAmount(1), 1001) == CFeeRate(0));
      81           1 :     BOOST_CHECK(CFeeRate(CAmount(2), 1001) == CFeeRate(1));
      82             :     // some more integer checks
      83           1 :     BOOST_CHECK(CFeeRate(CAmount(26), 789) == CFeeRate(32));
      84           1 :     BOOST_CHECK(CFeeRate(CAmount(27), 789) == CFeeRate(34));
      85             :     // Maximum size in bytes, should not crash
      86           1 :     CFeeRate(MAX_MONEY, std::numeric_limits<size_t>::max() >> 1).GetFeePerK();
      87           1 : }
      88             : 
      89          95 : BOOST_AUTO_TEST_CASE(BinaryOperatorTest)
      90             : {
      91           1 :     CFeeRate a, b;
      92           1 :     a = CFeeRate(1);
      93           1 :     b = CFeeRate(2);
      94           1 :     BOOST_CHECK(a < b);
      95           1 :     BOOST_CHECK(b > a);
      96           1 :     BOOST_CHECK(a == a);
      97           1 :     BOOST_CHECK(a <= b);
      98           1 :     BOOST_CHECK(a <= a);
      99           1 :     BOOST_CHECK(b >= a);
     100           1 :     BOOST_CHECK(b >= b);
     101             :     // a should be 0.00000002 BTC/kB now
     102           1 :     a += a;
     103           1 :     BOOST_CHECK(a == b);
     104           1 : }
     105             : 
     106          95 : BOOST_AUTO_TEST_CASE(ToStringTest)
     107             : {
     108           1 :     CFeeRate feeRate;
     109           1 :     feeRate = CFeeRate(1);
     110           1 :     BOOST_CHECK_EQUAL(feeRate.ToString(), "0.00000001 BTC/kB");
     111           1 : }
     112             : 
     113          89 : BOOST_AUTO_TEST_SUITE_END()