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# 1 : : // Copyright (c) 2016-2021 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 <consensus/amount.h>
# 6 : : #include <policy/feerate.h>
# 7 : :
# 8 : : #include <limits>
# 9 : :
# 10 : : #include <boost/test/unit_test.hpp>
# 11 : :
# 12 : : BOOST_AUTO_TEST_SUITE(amount_tests)
# 13 : :
# 14 : : BOOST_AUTO_TEST_CASE(MoneyRangeTest)
# 15 : 2 : {
# 16 : 2 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(-1)), false);
# 17 : 2 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(0)), true);
# 18 : 2 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(1)), true);
# 19 : 2 : BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
# 20 : 2 : BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + CAmount(1)), false);
# 21 : 2 : }
# 22 : :
# 23 : : BOOST_AUTO_TEST_CASE(GetFeeTest)
# 24 : 2 : {
# 25 : 2 : CFeeRate feeRate, altFeeRate;
# 26 : :
# 27 : 2 : feeRate = CFeeRate(0);
# 28 : : // Must always return 0
# 29 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
# 30 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e5), CAmount(0));
# 31 : :
# 32 : 2 : feeRate = CFeeRate(1000);
# 33 : : // Must always just return the arg
# 34 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
# 35 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(1));
# 36 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(121));
# 37 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(999));
# 38 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(1e3));
# 39 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(9e3));
# 40 : :
# 41 : 2 : feeRate = CFeeRate(-1000);
# 42 : : // Must always just return -1 * arg
# 43 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
# 44 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(-1));
# 45 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(-121));
# 46 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(-999));
# 47 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(-1e3));
# 48 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(-9e3));
# 49 : :
# 50 : 2 : feeRate = CFeeRate(123);
# 51 : : // Rounds up the result, if not integer
# 52 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
# 53 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(1)); // Special case: returns 1 instead of 0
# 54 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(2));
# 55 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(15));
# 56 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(16));
# 57 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(123));
# 58 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(123));
# 59 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(1107));
# 60 : :
# 61 : 2 : feeRate = CFeeRate(-123);
# 62 : : // Truncates the result, if not integer
# 63 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
# 64 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(-1)); // Special case: returns -1 instead of 0
# 65 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(-1));
# 66 : :
# 67 : : // check alternate constructor
# 68 : 2 : feeRate = CFeeRate(1000);
# 69 : 2 : altFeeRate = CFeeRate(feeRate);
# 70 : 2 : BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));
# 71 : :
# 72 : : // Check full constructor
# 73 : 2 : BOOST_CHECK(CFeeRate(CAmount(-1), 0) == CFeeRate(0));
# 74 : 2 : BOOST_CHECK(CFeeRate(CAmount(0), 0) == CFeeRate(0));
# 75 : 2 : BOOST_CHECK(CFeeRate(CAmount(1), 0) == CFeeRate(0));
# 76 : : // default value
# 77 : 2 : BOOST_CHECK(CFeeRate(CAmount(-1), 1000) == CFeeRate(-1));
# 78 : 2 : BOOST_CHECK(CFeeRate(CAmount(0), 1000) == CFeeRate(0));
# 79 : 2 : BOOST_CHECK(CFeeRate(CAmount(1), 1000) == CFeeRate(1));
# 80 : : // lost precision (can only resolve satoshis per kB)
# 81 : 2 : BOOST_CHECK(CFeeRate(CAmount(1), 1001) == CFeeRate(0));
# 82 : 2 : BOOST_CHECK(CFeeRate(CAmount(2), 1001) == CFeeRate(1));
# 83 : : // some more integer checks
# 84 : 2 : BOOST_CHECK(CFeeRate(CAmount(26), 789) == CFeeRate(32));
# 85 : 2 : BOOST_CHECK(CFeeRate(CAmount(27), 789) == CFeeRate(34));
# 86 : : // Maximum size in bytes, should not crash
# 87 : 2 : CFeeRate(MAX_MONEY, std::numeric_limits<uint32_t>::max()).GetFeePerK();
# 88 : 2 : }
# 89 : :
# 90 : : BOOST_AUTO_TEST_CASE(BinaryOperatorTest)
# 91 : 2 : {
# 92 : 2 : CFeeRate a, b;
# 93 : 2 : a = CFeeRate(1);
# 94 : 2 : b = CFeeRate(2);
# 95 : 2 : BOOST_CHECK(a < b);
# 96 : 2 : BOOST_CHECK(b > a);
# 97 : 2 : BOOST_CHECK(a == a);
# 98 : 2 : BOOST_CHECK(a <= b);
# 99 : 2 : BOOST_CHECK(a <= a);
# 100 : 2 : BOOST_CHECK(b >= a);
# 101 : 2 : BOOST_CHECK(b >= b);
# 102 : : // a should be 0.00000002 BTC/kvB now
# 103 : 2 : a += a;
# 104 : 2 : BOOST_CHECK(a == b);
# 105 : 2 : }
# 106 : :
# 107 : : BOOST_AUTO_TEST_CASE(ToStringTest)
# 108 : 2 : {
# 109 : 2 : CFeeRate feeRate;
# 110 : 2 : feeRate = CFeeRate(1);
# 111 : 2 : BOOST_CHECK_EQUAL(feeRate.ToString(), "0.00000001 BTC/kvB");
# 112 : 2 : BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::BTC_KVB), "0.00000001 BTC/kvB");
# 113 : 2 : BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::SAT_VB), "0.001 sat/vB");
# 114 : 2 : }
# 115 : :
# 116 : : BOOST_AUTO_TEST_SUITE_END()
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