core/test/modules/PlaneTests.cpp

#include "../Tests.hpp"
#include "core/Plane.hpp"
#include "core/Test.hpp"

static const float eps = 0.0001f;
using V3 = Core::Vector3;

static void testToString() {
    Core::Plane p(V3(3, 6, 8), V3(7, 6, 2), V3(4, 4, 4));
    TEST_STRING("(-0.684 x + 0.570 y + -0.456 z + 2.279)", p);
    TEST_STRING("(0.000 x + 0.000 y + 0.000 z + 0.000)", Core::Plane());
}

static void testSignedDistance() {
    V3 a(3, 6, 8);
    V3 b(7, 6, 2);
    V3 c(4, 4, 4);
    Core::Plane p(a, b, c);
    TEST_FLOAT(0.0f, p.signedDistance(a), eps);
    TEST_FLOAT(0.0f, p.signedDistance(b), eps);
    TEST_FLOAT(0.0f, p.signedDistance(c), eps);
    TEST_FLOAT(-1.13960576f, p.signedDistance(V3(5, 8, 10)), eps);
    TEST_FLOAT(0.911684612f, p.signedDistance(V3(3, 2, 1)), eps);
}

void testPlane() {
    testToString();
    testSignedDistance();
}