mp-units/test/unit_test/static/cgs_test.cpp

// The MIT License (MIT)
//
// Copyright (c) 2018 Mateusz Pusz
//
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// furnished to do so, subject to the following conditions:
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#include <units/physical/cgs/acceleration.h>
#include <units/physical/cgs/energy.h>
#include <units/physical/cgs/force.h>
#include <units/physical/cgs/length.h>
#include <units/physical/cgs/mass.h>
#include <units/physical/cgs/power.h>
#include <units/physical/cgs/pressure.h>
#include <units/physical/cgs/time.h>
#include <units/physical/cgs/velocity.h>

namespace {

using namespace units;
using namespace units::cgs;

/* ************** BASE DIMENSIONS **************** */

// length

static_assert(centimetre::symbol == "cm");

// mass

// time

/* ************** DERIVED DIMENSIONS IN TERMS OF BASE UNITS **************** */

// velocity

static_assert(10cm / 5s == 2cmps);
static_assert(10cm / 2cmps == 5s);
static_assert(10cm == 2cmps * 5s);

static_assert(detail::unit_text<dim_velocity, centimetre_per_second>() == "cm/s");

// area
static_assert(std::is_same_v<ratio_divide<centimetre::ratio, dimension_unit<dim_length>::ratio>, ratio<1>>);

static_assert(1cm * 1cm == 1cm2);
static_assert(100cm2 / 10cm == 10cm);

static_assert(detail::unit_text<dim_area, square_centimetre>() == "cm²");

/* ************** DERIVED DIMENSIONS WITH NAMED UNITS **************** */

// acceleration

static_assert(10cmps / 10s == 1Gal);
static_assert(10cmps / 1Gal == 10s);
static_assert(1Gal * 10s == 10cmps);

// force

static_assert(10g * 10Gal == 100dyn);
static_assert(100dyn / 10g == 10Gal);
static_assert(100dyn / 10Gal == 10g);

// pressure

static_assert(10dyn / 10cm2 == 1Ba);
static_assert(10dyn / 1Ba == 10cm2);
static_assert(1Ba * 10cm2 == 10dyn);

// energy

static_assert(10dyn * 10cm == 100_erg);
static_assert(100_erg / 10cm == 10dyn);
static_assert(100_erg / 10dyn == 10cm);

/* ************** DERIVED DIMENSIONS IN TERMS OF OTHER UNITS **************** */

// power

static_assert(10_erg / 10s == 1_ergps);
static_assert(1_ergps * 10s == 10_erg);
static_assert(10_erg / 1_ergps == 10s);

static_assert(detail::unit_text<dim_power, erg_per_second>() == "erg/s");

}