libcruft-util/test/geom/segment.cpp

#include "tap.hpp"

#include "geom/segment.hpp"


///////////////////////////////////////////////////////////////////////////////
void test_point_distance (cruft::TAP::logger &tap)
{
    static struct {
        cruft::point3f a, b;
        cruft::point3f q;
        float distance;
        const char *message;
    } const TESTS[] = {
        { { 0, 0, 0 }, { 1, 1, 1 }, { 0, 0, 0 }, 0, "origin line, origin point" },
        { { 0, 0, 0 }, { 1, 1, 1 }, { 1, 1, 1 }, 0, "origin line, point on line" },
        { { 0, 1, 0 }, { 1, 1, 0 }, { 0, 0, 0 }, 1, "+x line, unit distance" },
    };

    for (auto const& t: TESTS) {
        cruft::geom::segment3f s {t.a, t.b};
        auto d = distance (s, t.q);
        tap.expect_eq (d, t.distance, "%!", t.message);
    }
}


///////////////////////////////////////////////////////////////////////////////
int
main (int, char**)
{
    cruft::TAP::logger tap;
    test_point_distance (tap);
    return tap.status ();
}