From 33d31eaa385767e7a034f664dee33adf41a11f83 Mon Sep 17 00:00:00 2001
From: Yoel <s73017@beuth-hochschule.de>
Date: Thu, 3 Sep 2020 22:57:14 +0200
Subject: [PATCH] Test function for AxisAlignedBoundingBox implemented and
tested
---
RayTracer/testing/Testing.cpp | 83 +++++++++++++++++++++++++++++++++++
RayTracer/testing/Testing.h | 1 +
2 files changed, 84 insertions(+)
diff --git a/RayTracer/testing/Testing.cpp b/RayTracer/testing/Testing.cpp
index 21eb440..d495742 100644
--- a/RayTracer/testing/Testing.cpp
+++ b/RayTracer/testing/Testing.cpp
@@ -5,6 +5,7 @@
#include <iostream>
#include "../camera/Ray.h"
+#include "../tools/AxisAlignedBoundingBox.h"
#include "../tools/Mat4.h"
#include "../tools/Vec3.h"
@@ -305,4 +306,86 @@ void ray_test() {
}
std::cout << "all cam::Ray tests passed." << std::endl << std::endl;
}
+void axisalignedboundingbox_test() {
+ std::cout << "======================" << std::endl;
+ std::cout << " Testing AABB " << std::endl;
+ std::cout << "======================" << std::endl;
+
+ {
+ // do not tolerate any memory overhead
+ std::cout << " sizeof(AABB) == 24 bytes: ";
+ assert(sizeof(util::AxisAlignedBoundingBox));
+ std::cout << "passed." << std::endl;
+ }
+ {
+ std::cout << " contains: ";
+ util::AxisAlignedBoundingBox bb(util::Vec3(10, 10, 10),
+ util::Vec3(20, 20, 20));
+ assert(!bb.contains(util::Vec3(10, 6, 13)));
+ assert(!bb.contains(util::Vec3(22, 15, 13)));
+ assert(bb.contains(util::Vec3(10, 10, 20)));
+ assert(!bb.contains(util::Vec3(9, 19, 20)));
+ assert(!bb.contains(util::Vec3(16, 13, 25)));
+ assert(bb.contains(util::Vec3(15, 10, 18)));
+ assert(bb.contains(util::Vec3(10, 15, 20)));
+ assert(bb.contains(util::Vec3(10, 10, 10)));
+ std::cout << "passed." << std::endl;
+ }
+ {
+ std::cout << " expand: ";
+ util::AxisAlignedBoundingBox bb(util::Vec3(10, 10, 10),
+ util::Vec3(20, 20, 20));
+
+ util::AxisAlignedBoundingBox bb2(util::Vec3(15, 15, 15),
+ util::Vec3(25, 25, 25));
+
+ auto result = bb + bb2;
+ assert(result.minBound() == util::Vec3(10, 10, 10));
+ assert(result.maxBound() == util::Vec3(25, 25, 25));
+
+ util::AxisAlignedBoundingBox bb3(util::Vec3(10, 10, 10),
+ util::Vec3(20, 20, 20));
+
+ util::AxisAlignedBoundingBox bb4(util::Vec3(15, 9, -1),
+ util::Vec3(18, 10, 25));
+ auto result2 = bb3 + bb4;
+ assert(result2.minBound() == util::Vec3(10, 9, -1));
+ assert(result2.maxBound() == util::Vec3(20, 20, 25));
+
+ util::AxisAlignedBoundingBox bb5(util::Vec3(-45, 40, 0),
+ util::Vec3(0, 40, 20));
+
+ util::AxisAlignedBoundingBox bb6(util::Vec3(-70, -5, -1),
+ util::Vec3(-60, 90, 0));
+ auto result3 = bb5 + bb6;
+
+ assert(result3.minBound() == util::Vec3(-70, -5, -1));
+ assert(result3.maxBound() == util::Vec3(0, 90, 20));
+
+ std::cout << "passed." << std::endl;
+ }
+ {
+ std::cout << " intersect: ";
+ util::AxisAlignedBoundingBox bb(util::Vec3(10, 10, 10),
+ util::Vec3(20, 20, 20));
+
+ assert(bb.intersects(cam::Ray(util::Vec3(1, 10, 10),
+ util::Vec3(1, 0.5, 0.3), 0, 100, false)));
+ assert(bb.intersects(cam::Ray(
+ util::Vec3(11, 11, 11), util::Vec3(0.5, 0.3, 0.5), 0, 100, false)));
+ assert(!bb.intersects(cam::Ray(
+ util::Vec3(9, 9, 9), util::Vec3(1, -0.4, -0.5), 0, 100, false)));
+ assert(!bb.intersects(cam::Ray(
+ util::Vec3(21, 21, 21), util::Vec3(1, -0.4, -0.5), 0, 100, false)));
+ assert(
+ bb.intersects(cam::Ray(util::Vec3(21, 21, 21),
+ util::Vec3(-1, -0.4, -0.5), 0, 100, false)));
+ assert(bb.intersects(cam::Ray(util::Vec3(21, 21, 21),
+ util::Vec3(-1, -1, -2), 0, 100, false)));
+
+ std::cout << "passed." << std::endl;
+ }
+ std::cout << "all util::AxisAlignedBoundingBox tests passed." << std::endl
+ << std::endl;
+}
} // namespace test
diff --git a/RayTracer/testing/Testing.h b/RayTracer/testing/Testing.h
index df8ef45..0c70398 100644
--- a/RayTracer/testing/Testing.h
+++ b/RayTracer/testing/Testing.h
@@ -4,4 +4,5 @@ namespace test {
void vec3_test();
void mat4_test();
void ray_test();
+void axisalignedboundingbox_test();
} // namespace test
--
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