forked from mpusz/mp-units
Mateusz Pusz
9527b39005
We had some fun exploring the STD UDLs for potential collisions, we have learnt our lesson and know how to proceed. Now is high time to start behaving and obeying C++ rules.
102 lines
3.1 KiB
C++
102 lines
3.1 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/math.h"
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#include "units/physical/si/area.h"
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#include "units/physical/si/volume.h"
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#include <catch2/catch.hpp>
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using namespace units;
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using namespace units::physical::si;
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// classical
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TEST_CASE("'pow<N>()' on quantity changes the value and the dimension accordingly", "[math][pow]")
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{
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SECTION ("'pow<0>(q)' returns '1'") {
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CHECK(pow<0>(2_q_m) == 1);
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}
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SECTION ("'pow<1>(q)' returns 'q'") {
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CHECK(pow<1>(2_q_m) == 2_q_m);
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}
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SECTION ("'pow<2>(q)' squares both the value and a dimension") {
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CHECK(pow<2>(2_q_m) == 4_q_m2);
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}
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SECTION ("'pow<3>(q)' cubes both the value and a dimension") {
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CHECK(pow<3>(2_q_m) == 8_q_m3);
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}
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}
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TEST_CASE("'sqrt()' on quantity changes the value and the dimension accordingly", "[math][sqrt]")
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{
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REQUIRE(sqrt(4_q_m2) == 2_q_m);
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}
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TEST_CASE("absolute functions on quantity returns the absolute value", "[math][abs][fabs]")
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{
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SECTION ("'abs()' on a negative quantity returns the abs")
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{
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SECTION ("integral representation")
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{
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REQUIRE(abs(-1_q_m) == 1_q_m);
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}
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#ifndef COMP_MSVC
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SECTION ("floating-point representation")
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{
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REQUIRE(abs(-1._q_m) == 1_q_m);
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}
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#endif
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}
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SECTION ("'abs()' on a positive quantity returns the abs")
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{
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SECTION ("integral representation")
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{
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REQUIRE(abs(1_q_m) == 1_q_m);
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}
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#ifndef COMP_MSVC
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SECTION ("floating-point representation")
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{
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REQUIRE(abs(1._q_m) == 1_q_m);
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}
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#endif
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}
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}
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TEST_CASE("numeric_limits functions", "[limits]")
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{
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SECTION ("'epsilon' works as expected using default floating type") {
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REQUIRE(epsilon<decltype(1._q_m)>().count() == std::numeric_limits<decltype(1._q_m)::rep>::epsilon());
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}
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SECTION ("'epsilon' works as expected using integers") {
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REQUIRE(epsilon<decltype(1_q_m)>().count() == std::numeric_limits<decltype(1_q_m)::rep>::epsilon());
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}
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SECTION ("'epsilon' works as expected using mixed Rep types") {
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REQUIRE(epsilon<decltype(1_q_m)>().count() != std::numeric_limits<decltype(1._q_m)::rep>::epsilon());
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}
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}
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