106 lines
4.8 KiB
C++
106 lines
4.8 KiB
C++
/* @file scaled_unit.test.cpp */
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#include "xo/unit/scaled_unit.hpp"
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#include "xo/unit/scaled_unit_iostream.hpp"
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#include "xo/indentlog/scope.hpp"
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#include "xo/indentlog/print/tag.hpp"
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#include <catch2/catch.hpp>
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namespace xo {
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namespace qty {
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using su64_type = scaled_unit<std::int64_t>;
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using xo::qty::detail::su_product;
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using xo::qty::detail::nu_maker;
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/* compile-time test:
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* verify we can use an su64_type instance as a non-type template parameter.
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* Will need this for quantity<Repr, Int, scaled_unit<Int>>
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*/
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template <su64_type su>
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constexpr su64_type su_reciprocal = su.reciprocal();
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TEST_CASE("scaled_unit", "[scaled_unit]") {
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static_assert(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.natural_unit_ == nu::gram.reciprocal());
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REQUIRE(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.natural_unit_ == nu::gram.reciprocal());
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static_assert(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.outer_scale_factor_ == 1);
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REQUIRE(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.outer_scale_factor_ == 1);
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static_assert(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.outer_scale_sq_ == 1.0);
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REQUIRE(su_reciprocal<scaled_unit(nu::gram, xo::ratio::ratio(1LL), 1)>.outer_scale_sq_ == 1.0);
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} /*TEST_CASE(scaled_unit)*/
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TEST_CASE("su_product", "[scaled_unit]") {
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constexpr bool c_debug_flag = false;
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scope log(XO_DEBUG2(c_debug_flag, "TEST_CASE.su_product"));
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{
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constexpr natural_unit<int64_t> v
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= (nu_maker<int64_t>::make_nu
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(bpu<int64_t>(dim::distance, scalefactor_ratio_type(1, 1000), power_ratio_type(2, 1)),
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bpu<int64_t>(dim::mass, scalefactor_ratio_type(1, 1000), power_ratio_type(-1, 1))));
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static_assert(v.n_bpu() == 2);
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constexpr natural_unit<int64_t> w
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= (nu_maker<int64_t>::make_nu
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(bpu<int64_t>(dim::time, scalefactor_ratio_type(30*24*3600, 1), power_ratio_type(-1, 2))));
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static_assert(w.n_bpu() == 1);
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constexpr auto prod_rr = su_product<int64_t, __int128_t>(v, w);
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log && log(xtag("prod_rr.bpu_array", prod_rr.natural_unit_));
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log && log(xtag("prod_rr.outer_scale_exact", prod_rr.outer_scale_factor_.convert_to<int64_t>()));
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log && log(xtag("prod_rr.outer_scale_sq", prod_rr.outer_scale_sq_));
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static_assert(prod_rr.natural_unit_.n_bpu() == 3);
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static_assert(prod_rr.natural_unit_[0].native_dim() == dim::distance);
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static_assert(prod_rr.natural_unit_[0].scalefactor() == scalefactor_ratio_type(1, 1000));
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static_assert(prod_rr.natural_unit_[0].power() == power_ratio_type(2, 1));
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static_assert(prod_rr.natural_unit_[1].native_dim() == dim::mass);
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static_assert(prod_rr.natural_unit_[1].scalefactor() == scalefactor_ratio_type(1, 1000));
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static_assert(prod_rr.natural_unit_[1].power() == power_ratio_type(-1, 1));
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static_assert(prod_rr.natural_unit_[2].native_dim() == dim::time);
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static_assert(prod_rr.natural_unit_[2].scalefactor() == scalefactor_ratio_type(30*24*3600, 1));
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static_assert(prod_rr.natural_unit_[2].power() == power_ratio_type(-1, 2));
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static_assert(prod_rr.outer_scale_factor_ == scalefactor_ratio_type(1, 1));
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static_assert(prod_rr.outer_scale_sq_ == 1.0);
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}
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} /*TEST_CASE(su_product)*/
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TEST_CASE("scaled_unit0", "[scaled_unit0]") {
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constexpr bool c_debug_flag = false;
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scope log(XO_DEBUG2(c_debug_flag, "TEST_CASE.scaled_unit0"));
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constexpr auto ng = su::nanogram;
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constexpr auto ng2 = ng * ng;
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log && log(xtag("ng", ng));
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log && log(xtag("ng*ng", ng2));
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static_assert(ng.natural_unit_.n_bpu() == 1);
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static_assert(ng2.natural_unit_.n_bpu() == 1);
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} /*TEST_CASE(scaled_unit0)*/
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TEST_CASE("scaled_unit1", "[scaled_unit1]") {
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constexpr bool c_debug_flag = false;
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scope log(XO_DEBUG2(c_debug_flag, "TEST_CASE.scaled_unit1"));
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constexpr auto ng = su::nanogram;
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constexpr auto ng2 = ng / ng;
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log && log(xtag("ng", ng));
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log && log(xtag("ng/ng", ng2));
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static_assert(ng.natural_unit_.n_bpu() == 1);
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static_assert(ng2.natural_unit_.n_bpu() == 0);
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} /*TEST_CASE(scaled_unit1)*/
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} /*namespace qty*/
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} /*namespace xo*/
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/* end scaled_unit.test.cpp */
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