mirror of https://github.com/bitcoin/bitcoin.git
143 lines
5.3 KiB
C++
143 lines
5.3 KiB
C++
// Copyright (c) 2016-2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <consensus/amount.h>
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#include <policy/feerate.h>
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#include <limits>
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#include <boost/test/unit_test.hpp>
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BOOST_AUTO_TEST_SUITE(amount_tests)
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BOOST_AUTO_TEST_CASE(MoneyRangeTest)
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{
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BOOST_CHECK_EQUAL(MoneyRange(CAmount(-1)), false);
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BOOST_CHECK_EQUAL(MoneyRange(CAmount(0)), true);
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BOOST_CHECK_EQUAL(MoneyRange(CAmount(1)), true);
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BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
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BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + CAmount(1)), false);
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}
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BOOST_AUTO_TEST_CASE(GetFeeTest)
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{
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CFeeRate feeRate, altFeeRate;
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feeRate = CFeeRate(0);
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// Must always return 0
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BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1e5), CAmount(0));
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feeRate = CFeeRate(1000);
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// Must always just return the arg
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BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(1));
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BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(121));
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BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(999));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(1e3));
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BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(9e3));
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feeRate = CFeeRate(-1000);
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// Must always just return -1 * arg
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BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(-1));
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BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(-121));
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BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(-999));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(-1e3));
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BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(-9e3));
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feeRate = CFeeRate(123);
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// Rounds up the result, if not integer
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BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
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BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(1)); // Special case: returns 1 instead of 0
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BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(2));
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BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(15));
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BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(16));
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BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(123));
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BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(123));
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BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(1107));
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feeRate = CFeeRate(-123);
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// Truncates the result, if not integer
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BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
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BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(-1)); // Special case: returns -1 instead of 0
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BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(-1));
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// check alternate constructor
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feeRate = CFeeRate(1000);
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altFeeRate = CFeeRate(feeRate);
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BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));
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// Check full constructor
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BOOST_CHECK(CFeeRate(CAmount(-1), 0) == CFeeRate(0));
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BOOST_CHECK(CFeeRate(CAmount(0), 0) == CFeeRate(0));
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BOOST_CHECK(CFeeRate(CAmount(1), 0) == CFeeRate(0));
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// default value
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BOOST_CHECK(CFeeRate(CAmount(-1), 1000) == CFeeRate(-1));
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BOOST_CHECK(CFeeRate(CAmount(0), 1000) == CFeeRate(0));
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BOOST_CHECK(CFeeRate(CAmount(1), 1000) == CFeeRate(1));
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// lost precision (can only resolve satoshis per kB)
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BOOST_CHECK(CFeeRate(CAmount(1), 1001) == CFeeRate(0));
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BOOST_CHECK(CFeeRate(CAmount(2), 1001) == CFeeRate(1));
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// some more integer checks
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BOOST_CHECK(CFeeRate(CAmount(26), 789) == CFeeRate(32));
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BOOST_CHECK(CFeeRate(CAmount(27), 789) == CFeeRate(34));
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// Maximum size in bytes, should not crash
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CFeeRate(MAX_MONEY, std::numeric_limits<uint32_t>::max()).GetFeePerK();
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// check multiplication operator
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// check multiplying by zero
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feeRate = CFeeRate(1000);
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BOOST_CHECK(0 * feeRate == CFeeRate(0));
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BOOST_CHECK(feeRate * 0 == CFeeRate(0));
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// check multiplying by a positive integer
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BOOST_CHECK(3 * feeRate == CFeeRate(3000));
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BOOST_CHECK(feeRate * 3 == CFeeRate(3000));
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// check multiplying by a negative integer
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BOOST_CHECK(-3 * feeRate == CFeeRate(-3000));
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BOOST_CHECK(feeRate * -3 == CFeeRate(-3000));
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// check commutativity
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BOOST_CHECK(2 * feeRate == feeRate * 2);
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// check with large numbers
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int largeNumber = 1000000;
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BOOST_CHECK(largeNumber * feeRate == feeRate * largeNumber);
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// check boundary values
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int maxInt = std::numeric_limits<int>::max();
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feeRate = CFeeRate(maxInt);
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BOOST_CHECK(feeRate * 2 == CFeeRate(static_cast<int64_t>(maxInt) * 2));
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BOOST_CHECK(2 * feeRate == CFeeRate(static_cast<int64_t>(maxInt) * 2));
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// check with zero fee rate
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feeRate = CFeeRate(0);
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BOOST_CHECK(feeRate * 5 == CFeeRate(0));
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BOOST_CHECK(5 * feeRate == CFeeRate(0));
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}
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BOOST_AUTO_TEST_CASE(BinaryOperatorTest)
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{
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CFeeRate a, b;
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a = CFeeRate(1);
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b = CFeeRate(2);
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BOOST_CHECK(a < b);
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BOOST_CHECK(b > a);
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BOOST_CHECK(a == a);
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BOOST_CHECK(a <= b);
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BOOST_CHECK(a <= a);
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BOOST_CHECK(b >= a);
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BOOST_CHECK(b >= b);
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// a should be 0.00000002 BTC/kvB now
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a += a;
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BOOST_CHECK(a == b);
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}
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BOOST_AUTO_TEST_CASE(ToStringTest)
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{
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CFeeRate feeRate;
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feeRate = CFeeRate(1);
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BOOST_CHECK_EQUAL(feeRate.ToString(), "0.00000001 BTC/kvB");
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BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::BTC_KVB), "0.00000001 BTC/kvB");
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BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::SAT_VB), "0.001 sat/vB");
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}
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BOOST_AUTO_TEST_SUITE_END()
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