forked from mpusz/mp-units
90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
// The MIT License (MIT)
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//
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// Copyright (c) 2018 Mateusz Pusz
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include <units/quantity.h>
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#include <catch2/catch.hpp>
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#include <sstream>
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namespace data {
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struct base_dim_digital_information : units::base_dimension<"digital information", "b"> {};
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struct digital_information : units::derived_dimension<digital_information, units::exp<base_dim_digital_information, 1>> {};
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template<typename T>
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concept DigitalInformation = units::QuantityOf<T, digital_information>;
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struct data_prefix : units::prefix_type {};
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struct kibi : units::prefix<kibi, data_prefix, units::ratio< 1'024>, "Ki"> {};
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struct mebi : units::prefix<mebi, data_prefix, units::ratio<1'048'576>, "Mi"> {};
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struct bit : units::named_coherent_derived_unit<bit, digital_information, "b", data_prefix> {};
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struct kilobit : units::prefixed_derived_unit<kilobit, kibi, bit> {};
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struct byte : units::named_scaled_derived_unit<byte, digital_information, "B", units::ratio<8>, data_prefix> {};
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struct kilobyte : units::prefixed_derived_unit<kilobyte, kibi, byte> {};
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inline namespace literals {
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constexpr auto operator""_b(unsigned long long l) { return units::quantity<bit, std::int64_t>(l); }
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constexpr auto operator""_Kib(unsigned long long l) { return units::quantity<kilobit, std::int64_t>(l); }
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constexpr auto operator""_B(unsigned long long l) { return units::quantity<byte, std::int64_t>(l); }
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constexpr auto operator""_KiB(unsigned long long l) { return units::quantity<kilobyte, std::int64_t>(l); }
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}
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}
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using namespace data;
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TEST_CASE("operator<< on a custom quantity", "[text][ostream]")
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{
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std::stringstream stream;
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SECTION("quantity with a predefined unit and prefix")
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{
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SECTION("named unit")
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{
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stream << 64_B;
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REQUIRE(stream.str() == "64 B");
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}
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SECTION("prefixed coherent unit")
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{
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stream << 256_Kib;
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REQUIRE(stream.str() == "256 Kib");
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}
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SECTION("prefixed non-coherent unit")
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{
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stream << 1024_KiB;
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REQUIRE(stream.str() == "1024 KiB");
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}
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SECTION("other unit matching prefix")
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{
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stream << 8_Kib * 8_Kib / 2_b;
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REQUIRE(stream.str() == "32 Mib");
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}
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}
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}
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