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`STNumber` lets objects and transactions contain multiple fields for quantities of XRP, IOU, or MPT without duplicating information about the "issue" (represented by `STIssue`). It is a straightforward serialization of the `Number` type that uniformly represents those quantities. --------- Co-authored-by: John Freeman <jfreeman08@gmail.com> Co-authored-by: Howard Hinnant <howard.hinnant@gmail.com>
94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2024 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <xrpl/beast/unit_test.h>
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#include <xrpl/protocol/Issue.h>
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#include <xrpl/protocol/STAmount.h>
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#include <xrpl/protocol/STNumber.h>
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#include <limits>
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#include <ostream>
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namespace ripple {
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struct STNumber_test : public beast::unit_test::suite
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{
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void
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testCombo(Number number)
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{
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STNumber const before{sfNumber, number};
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BEAST_EXPECT(number == before);
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Serializer s;
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before.add(s);
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BEAST_EXPECT(s.size() == 12);
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SerialIter sit(s.slice());
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STNumber const after{sit, sfNumber};
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BEAST_EXPECT(after.isEquivalent(before));
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BEAST_EXPECT(number == after);
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}
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void
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run() override
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{
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static_assert(!std::is_convertible_v<STNumber*, Number*>);
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{
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STNumber const stnum{sfNumber};
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BEAST_EXPECT(stnum.getSType() == STI_NUMBER);
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BEAST_EXPECT(stnum.getText() == "0");
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BEAST_EXPECT(stnum.isDefault() == true);
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BEAST_EXPECT(stnum.value() == Number{0});
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}
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std::initializer_list<std::int64_t> const mantissas = {
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std::numeric_limits<std::int64_t>::min(),
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-1,
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0,
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1,
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std::numeric_limits<std::int64_t>::max()};
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for (std::int64_t mantissa : mantissas)
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testCombo(Number{mantissa});
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std::initializer_list<std::int32_t> const exponents = {
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Number::minExponent, -1, 0, 1, Number::maxExponent - 1};
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for (std::int32_t exponent : exponents)
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testCombo(Number{123, exponent});
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{
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STAmount const strikePrice{noIssue(), 100};
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STNumber const factor{sfNumber, 100};
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auto const iouValue = strikePrice.iou();
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IOUAmount totalValue{iouValue * factor};
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STAmount const totalAmount{totalValue, strikePrice.issue()};
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BEAST_EXPECT(totalAmount == Number{10'000});
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}
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}
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};
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BEAST_DEFINE_TESTSUITE(STNumber, protocol, ripple);
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void
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testCompile(std::ostream& out)
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{
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STNumber number{sfNumber, 42};
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out << number;
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}
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} // namespace ripple
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