gds-render/test/geometric/vector-operations.cpp

44 lines
777 B
C++

#include <catch.hpp>
#include <limits>
extern "C" {
#include <gds-render/geometric/vector-operations.h>
}
TEST_CASE("geometric/vector-operations/vector_2d_add", "[GEOMETRIC]")
{
struct vector_2d res;
struct vector_2d a;
struct vector_2d b;
a.x = 1;
a.y = 2;
b.x = 2;
b.y = 6;
vector_2d_add(&res, &a, &b);
REQUIRE(res.x == Approx(a.x + b.x));
REQUIRE(res.y == Approx(a.y + b.y));
}
TEST_CASE("geometric/vector-operations/vector_2d_calculate_angle_between", "[GEOMETRIC]")
{
double angle;
struct vector_2d a;
struct vector_2d b;
a.x = 1;
a.y = 0;
b.x = 0;
b.y = 1;
angle = vector_2d_calculate_angle_between(&a, &a);
REQUIRE(angle == Approx(0.0));
angle = vector_2d_calculate_angle_between(&a, &b);
REQUIRE(angle == Approx(90.0 / 180.0 * M_PI));
}