TEST(BoundingBox, Intersection){
Point lb(1,2,0);
Point ub(2,4,0);
BoundingBox bb1(lb, ub);
BoundingBox bb2(lb, ub);
// Intersection should return an bounding box equal to bb2 and bb1,
// they are the same bb
BoundingBox bbIntersection = bb2.intersection(bb1);
EXPECT_TRUE( bbIntersection.getLb().getX() == bb2.getLb().getX() &&
bbIntersection.getLb().getY() == bb2.getLb().getY() &&
bbIntersection.getLb().getZ() == bb2.getLb().getZ());
EXPECT_TRUE( bbIntersection.getUb().getX() == bb2.getUb().getX() &&
bbIntersection.getUb().getY() == bb2.getUb().getY() &&
bbIntersection.getUb().getZ() == bb2.getUb().getZ());
Point lb3(2,3,0);
Point ub3(2,4,0);
BoundingBox bb3(lb3, ub3);
bbIntersection = bb2.intersection(bb3);
// lower bound is the value of of bb3
EXPECT_TRUE( bbIntersection.getLb().getX() == lb3.getX() &&
bbIntersection.getLb().getY() == lb3.getY() &&
bbIntersection.getLb().getZ() == lb3.getZ());
// upper bound should not change
EXPECT_TRUE( bbIntersection.getUb().getX() == bb2.getUb().getX() &&
bbIntersection.getUb().getY() == bb2.getUb().getY() &&
bbIntersection.getUb().getZ() == bb2.getUb().getZ());
}
TEST(BoundingBox, NoIntersection){
Point lb(1,2,0), ub(2,4,0), lb2(3,5,0), ub2(4,6,0);
BoundingBox bb1(lb, ub);
BoundingBox bb2(lb2, ub2);
// Intersection should return an bounding box equal to bb2 and bb1,
// they are the same bb
BoundingBox bbInter = bb2.intersection(bb1);
EXPECT_FALSE( bb1.doesIntersect(bb2));
// Lower bound of intersection should contain greater values
// among lower bound of both bounding boxes (lb2)
EXPECT_TRUE( bbInter.getLb().getX() == lb2.getX() &&
bbInter.getLb().getY() == lb2.getY() &&
bbInter.getLb().getZ() == lb2.getZ());
// Upper bound of intersection should contain smaller values
// among upper bound of both bounding boxes (ub)
EXPECT_TRUE( bbInter.getUb().getX() == ub.getX() &&
bbInter.getUb().getY() == ub.getY() &&
bbInter.getUb().getZ() == ub.getZ());
}
