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https://github.com/vtnerd/monero-lws.git
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107 lines
4.4 KiB
C++
107 lines
4.4 KiB
C++
// Copyright (c) 2022, The Monero Project
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "framework.test.h"
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#include <boost/core/demangle.hpp>
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#include <cstdint>
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#include <limits>
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#include "wire/read.h"
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namespace
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{
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template<typename Target>
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void test_unsigned_to_unsigned(lest::env& lest_env)
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{
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using limit = std::numeric_limits<Target>;
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static constexpr const auto max =
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std::numeric_limits<std::uintmax_t>::max();
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static_assert(limit::is_integer, "expected integer");
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static_assert(!limit::is_signed, "expected unsigned");
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SETUP("uintmax_t to " + boost::core::demangle(typeid(Target).name()))
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{
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EXPECT(Target(0) == wire::integer::cast_unsigned<Target>(std::uintmax_t(0)));
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EXPECT(limit::max() == wire::integer::cast_unsigned<Target>(std::uintmax_t(limit::max())));
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if constexpr (limit::max() < max)
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{
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EXPECT_THROWS_AS(wire::integer::cast_unsigned<Target>(std::uintmax_t(limit::max()) + 1), wire::exception);
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EXPECT_THROWS_AS(wire::integer::cast_unsigned<Target>(max), wire::exception);
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}
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}
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}
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template<typename Target>
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void test_signed_to_signed(lest::env& lest_env)
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{
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using limit = std::numeric_limits<Target>;
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static constexpr const auto min =
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std::numeric_limits<std::intmax_t>::min();
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static constexpr const auto max =
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std::numeric_limits<std::intmax_t>::max();
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static_assert(limit::is_integer, "expected integer");
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static_assert(limit::is_signed, "expected signed");
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SETUP("intmax_t to " + boost::core::demangle(typeid(Target).name()))
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{
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if constexpr (min < limit::min())
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{
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EXPECT_THROWS_AS(wire::integer::cast_signed<Target>(std::intmax_t(limit::min()) - 1), wire::exception);
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EXPECT_THROWS_AS(wire::integer::cast_signed<Target>(min), wire::exception);
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}
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EXPECT(limit::min() == wire::integer::cast_signed<Target>(std::intmax_t(limit::min())));
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EXPECT(Target(0) == wire::integer::cast_signed<Target>(std::intmax_t(0)));
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EXPECT(limit::max() == wire::integer::cast_signed<Target>(std::intmax_t(limit::max())));
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if constexpr (limit::max() < max)
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{
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EXPECT_THROWS_AS(wire::integer::cast_signed<Target>(std::intmax_t(limit::max()) + 1), wire::exception);
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EXPECT_THROWS_AS(wire::integer::cast_signed<Target>(max), wire::exception);
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}
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}
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}
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}
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LWS_CASE("wire::integer::cast_*")
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{
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SETUP("unsigned to unsigned")
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{
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test_unsigned_to_unsigned<std::uint8_t>(lest_env);
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test_unsigned_to_unsigned<std::uint16_t>(lest_env);
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test_unsigned_to_unsigned<std::uint32_t>(lest_env);
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test_unsigned_to_unsigned<std::uint64_t>(lest_env);
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test_unsigned_to_unsigned<std::uintmax_t>(lest_env);
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}
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SETUP("signed to signed")
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{
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test_signed_to_signed<std::int8_t>(lest_env);
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test_signed_to_signed<std::int16_t>(lest_env);
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test_signed_to_signed<std::int32_t>(lest_env);
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test_signed_to_signed<std::int64_t>(lest_env);
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test_signed_to_signed<std::intmax_t>(lest_env);
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}
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}
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