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b8a46a3c04
29ed2d64f6 Improve CAmount tests (Hennadii Stepanov)
Pull request description:
This provides:
- more `MoneyRange` tests;
- new `CFeeRate` constructor tests with zero byte size;
- explicit using of the `CAmount` type.
Tree-SHA512: ca0ad6ccb37909a2a5c11034dc07b316a84c32fb40c6f8b6cfc28ebec72a1de157f31d22e767ae80d70ed06d7296f23870cc5ed0689f34a754ae763d50e23d43
114 lines
4.1 KiB
C++
114 lines
4.1 KiB
C++
// Copyright (c) 2016 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 <amount.h>
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#include <policy/feerate.h>
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#include <test/test_dash.h>
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#include <boost/test/unit_test.hpp>
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BOOST_FIXTURE_TEST_SUITE(amount_tests, BasicTestingSetup)
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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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// 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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BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(14));
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BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(15));
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BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(122));
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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<size_t>::max() >> 1).GetFeePerK();
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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 DASH/kB 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 DASH/kB");
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}
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BOOST_AUTO_TEST_SUITE_END()
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