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xo-unit: utest: + quantity rescale tests

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This commit is contained in:
Roland Conybeare 2024-04-05 01:44:44 -04:00
commit 1740a23294
1 changed files with 71 additions and 0 deletions
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utest/quantity.test.cpp
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@ -12,9 +12,14 @@ namespace xo {
using xo::unit::quantity;
using xo::unit::qty::kilograms;
using xo::unit::qty::meters;
using xo::unit::qty::kilometers;
using xo::unit::qty::milliseconds;
using xo::unit::qty::seconds;
using xo::unit::qty::minutes;
using xo::unit::qty::hours;
using xo::unit::qty::volatility30d;
using xo::unit::qty::volatility250d;
@ -718,6 +723,72 @@ namespace xo {
//CHECK(r == Approx(0.692820323).epsilon(1e-6));
} /*TEST_CASE(muldiv5)*/
TEST_CASE("rescale", "[quantity]") {
constexpr bool c_debug_flag = false;
// can get bits from /dev/random by uncommenting the 2nd line below
//uint64_t seed = xxx;
//rng::Seed<xoshio256ss> seed;
//auto rng = xo::rng::xoshiro256ss(seed);
scope log(XO_DEBUG2(c_debug_flag, "TEST_CASE.rescale"));
//log && log("(A)", xtag("foo", foo));
auto q = kilograms(150.0) / minutes(1); /* 150.0kg.min^-1 */
CHECK(strcmp(q.unit_cstr(), "kg.min^-1") == 0);
CHECK(q.scale() == 150.0);
log && log(XTAG(q));
namespace u = xo::unit::units;
auto q1 = q.with_basis_unit<u::millisecond>(); /* 0.0025kg.ms^-1 */
CHECK(strcmp(q1.unit_cstr(), "kg.ms^-1") == 0);
CHECK(q1.scale() == 0.0025);
log && log(XTAG(q1));
auto q2 = q1.with_basis_unit<u::gram>(); /* 2.5g.ms^-1 */
CHECK(strcmp(q2.unit_cstr(), "g.ms^-1") == 0);
CHECK(q2.scale() == 2.5);
log && log(XTAG(q2));
auto q3 = q2.with_basis_unit<u::second>(); /* 2500g.s^-1 */
CHECK(strcmp(q3.unit_cstr(), "g.s^-1") == 0);
CHECK(q3.scale() == 2500.0);
log && log(XTAG(q3));
} /*TEST_CASE(rescale)*/
TEST_CASE("rescale2", "[quantity]") {
constexpr bool c_debug_flag = true;
// can get bits from /dev/random by uncommenting the 2nd line below
//uint64_t seed = xxx;
//rng::Seed<xoshio256ss> seed;
//auto rng = xo::rng::xoshiro256ss(seed);
scope log(XO_DEBUG2(c_debug_flag, "TEST_CASE.rescale2"));
//log && log("(A)", xtag("foo", foo));
namespace u = xo::unit::unit_qty;
auto q1 = kilometers(150.0) / u::hour;
auto q2 = q1.with_units_from(u::meter / u::second);
log && log(XTAG(q1), XTAG(q2));
} /*TEST_CASE(rescale2)*/
} /*namespace ut*/
} /*namespace xo*/