Add Voxelarea unittests (#7121)

* Add voxelarea unittests

2 files changed, 375 insertions, 0 deletions

diff --git a/src/unittest/CMakeLists.txt b/src/unittest/CMakeLists.txt
index 56132d9c3..3373f9d11 100644
--- a/src/unittest/CMakeLists.txt
+++ b/src/unittest/CMakeLists.txt
@@ -24,6 +24,7 @@ set (UNITTEST_SRCS
 	${CMAKE_CURRENT_SOURCE_DIR}/test_socket.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/test_threading.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/test_utilities.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/test_voxelarea.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/test_voxelalgorithms.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/test_voxelmanipulator.cpp
 	PARENT_SCOPE)
diff --git a/src/unittest/test_voxelarea.cpp b/src/unittest/test_voxelarea.cpp
new file mode 100644
index 000000000..6ec0412d5
--- /dev/null
+++ b/src/unittest/test_voxelarea.cpp
@@ -0,0 +1,374 @@
+/*
+Minetest
+Copyright (C) 2018 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "test.h"
+#include "voxel.h"
+
+class TestVoxelArea : public TestBase
+{
+public:
+	TestVoxelArea() { TestManager::registerTestModule(this); }
+	const char *getName() { return "TestVoxelArea"; }
+
+	void runTests(IGameDef *gamedef);
+
+	void test_addarea();
+	void test_pad();
+	void test_volume();
+	void test_contains_voxelarea();
+	void test_contains_point();
+	void test_contains_i();
+	void test_equal();
+	void test_plus();
+	void test_minor();
+	void test_index_xyz_all_pos();
+	void test_index_xyz_x_neg();
+	void test_index_xyz_y_neg();
+	void test_index_xyz_z_neg();
+	void test_index_xyz_xy_neg();
+	void test_index_xyz_xz_neg();
+	void test_index_xyz_yz_neg();
+	void test_index_xyz_all_neg();
+	void test_index_v3s16_all_pos();
+	void test_index_v3s16_x_neg();
+	void test_index_v3s16_y_neg();
+	void test_index_v3s16_z_neg();
+	void test_index_v3s16_xy_neg();
+	void test_index_v3s16_xz_neg();
+	void test_index_v3s16_yz_neg();
+	void test_index_v3s16_all_neg();
+	void test_add_x();
+	void test_add_y();
+	void test_add_z();
+	void test_add_p();
+};
+
+static TestVoxelArea g_test_instance;
+
+void TestVoxelArea::runTests(IGameDef *gamedef)
+{
+	TEST(test_addarea);
+	TEST(test_pad);
+	TEST(test_volume);
+	TEST(test_contains_voxelarea);
+	TEST(test_contains_point);
+	TEST(test_contains_i);
+	TEST(test_equal);
+	TEST(test_plus);
+	TEST(test_minor);
+	TEST(test_index_xyz_all_pos);
+	TEST(test_index_xyz_x_neg);
+	TEST(test_index_xyz_y_neg);
+	TEST(test_index_xyz_z_neg);
+	TEST(test_index_xyz_xy_neg);
+	TEST(test_index_xyz_xz_neg);
+	TEST(test_index_xyz_yz_neg);
+	TEST(test_index_xyz_all_neg);
+	TEST(test_index_v3s16_all_pos);
+	TEST(test_index_v3s16_x_neg);
+	TEST(test_index_v3s16_y_neg);
+	TEST(test_index_v3s16_z_neg);
+	TEST(test_index_v3s16_xy_neg);
+	TEST(test_index_v3s16_xz_neg);
+	TEST(test_index_v3s16_yz_neg);
+	TEST(test_index_v3s16_all_neg);
+	TEST(test_add_x);
+	TEST(test_add_y);
+	TEST(test_add_z);
+	TEST(test_add_p);
+}
+
+void TestVoxelArea::test_addarea()
+{
+	VoxelArea v1(v3s16(-1447, 8854, -875), v3s16(-147, -9547, 669));
+	VoxelArea v2(v3s16(-887, 4445, -5478), v3s16(447, -8779, 4778));
+
+	v1.addArea(v2);
+	UASSERT(v1.MinEdge == v3s16(-1447, 4445, -5478));
+	UASSERT(v1.MaxEdge == v3s16(447, -8779, 4778));
+}
+
+void TestVoxelArea::test_pad()
+{
+	VoxelArea v1(v3s16(-1447, 8854, -875), v3s16(-147, -9547, 669));
+	v1.pad(v3s16(100, 200, 300));
+
+	UASSERT(v1.MinEdge == v3s16(-1547, 8654, -1175));
+	UASSERT(v1.MaxEdge == v3s16(-47, -9347, 969));
+}
+
+void TestVoxelArea::test_volume()
+{
+	VoxelArea v1(v3s16(-1337, 447, -789), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v1.getVolume(), -184657133);
+}
+
+void TestVoxelArea::test_contains_voxelarea()
+{
+	VoxelArea v1(v3s16(-1337, -9547, -789), v3s16(-147, 750, 669));
+	UASSERTEQ(bool, v1.contains(VoxelArea(v3s16(-200, 10, 10), v3s16(-150, 10, 10))),
+			true);
+	UASSERTEQ(bool, v1.contains(VoxelArea(v3s16(-2550, 10, 10), v3s16(10, 10, 10))),
+			false);
+	UASSERTEQ(bool, v1.contains(VoxelArea(v3s16(-10, 10, 10), v3s16(3500, 10, 10))),
+			false);
+	UASSERTEQ(bool,
+			v1.contains(VoxelArea(
+					v3s16(-800, -400, 669), v3s16(-500, 200, 669))),
+			true);
+	UASSERTEQ(bool,
+			v1.contains(VoxelArea(
+					v3s16(-800, -400, 670), v3s16(-500, 200, 670))),
+			false);
+}
+
+void TestVoxelArea::test_contains_point()
+{
+	VoxelArea v1(v3s16(-1337, -9547, -789), v3s16(-147, 750, 669));
+	UASSERTEQ(bool, v1.contains(v3s16(-200, 10, 10)), true);
+	UASSERTEQ(bool, v1.contains(v3s16(-10000, 10, 10)), false);
+	UASSERTEQ(bool, v1.contains(v3s16(-100, 10000, 10)), false);
+	UASSERTEQ(bool, v1.contains(v3s16(-100, 100, 10000)), false);
+	UASSERTEQ(bool, v1.contains(v3s16(-100, 100, -10000)), false);
+	UASSERTEQ(bool, v1.contains(v3s16(10000, 100, 10)), false);
+}
+
+void TestVoxelArea::test_contains_i()
+{
+	VoxelArea v1(v3s16(-1337, -9547, -789), v3s16(-147, 750, 669));
+	UASSERTEQ(bool, v1.contains(10), true);
+	UASSERTEQ(bool, v1.contains(v1.getVolume()), false);
+	UASSERTEQ(bool, v1.contains(v1.getVolume() - 1), true);
+	UASSERTEQ(bool, v1.contains(v1.getVolume() + 1), false);
+	UASSERTEQ(bool, v1.contains(-1), false)
+
+	VoxelArea v2(v3s16(10, 10, 10), v3s16(30, 30, 30));
+	UASSERTEQ(bool, v2.contains(10), true);
+	UASSERTEQ(bool, v2.contains(0), true);
+	UASSERTEQ(bool, v2.contains(-1), false);
+}
+
+void TestVoxelArea::test_equal()
+{
+	VoxelArea v1(v3s16(-1337, -9547, -789), v3s16(-147, 750, 669));
+	UASSERTEQ(bool, v1 == VoxelArea(v3s16(-1337, -9547, -789), v3s16(-147, 750, 669)),
+			true);
+	UASSERTEQ(bool, v1 == VoxelArea(v3s16(0, 0, 0), v3s16(-147, 750, 669)), false);
+	UASSERTEQ(bool, v1 == VoxelArea(v3s16(0, 0, 0), v3s16(-147, 750, 669)), false);
+	UASSERTEQ(bool, v1 == VoxelArea(v3s16(0, 0, 0), v3s16(0, 0, 0)), false);
+}
+
+void TestVoxelArea::test_plus()
+{
+	VoxelArea v1(v3s16(-10, -10, -10), v3s16(100, 100, 100));
+	UASSERT(v1 + v3s16(10, 0, 0) ==
+			VoxelArea(v3s16(0, -10, -10), v3s16(110, 100, 100)));
+	UASSERT(v1 + v3s16(10, -10, 0) ==
+			VoxelArea(v3s16(0, -20, -10), v3s16(110, 90, 100)));
+	UASSERT(v1 + v3s16(0, 0, 35) ==
+			VoxelArea(v3s16(-10, -10, 25), v3s16(100, 100, 135)));
+}
+
+void TestVoxelArea::test_minor()
+{
+	VoxelArea v1(v3s16(-10, -10, -10), v3s16(100, 100, 100));
+	UASSERT(v1 - v3s16(10, 0, 0) ==
+			VoxelArea(v3s16(-20, -10, -10), v3s16(90, 100, 100)));
+	UASSERT(v1 - v3s16(10, -10, 0) ==
+			VoxelArea(v3s16(-20, 0, -10), v3s16(90, 110, 100)));
+	UASSERT(v1 - v3s16(0, 0, 35) ==
+			VoxelArea(v3s16(-10, -10, -45), v3s16(100, 100, 65)));
+}
+
+void TestVoxelArea::test_index_xyz_all_pos()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(156, 25, 236), 155);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(156, 25, 236), 1267138774);
+}
+
+void TestVoxelArea::test_index_xyz_x_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(-147, 25, 366), -148);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(-147, 25, 366), -870244825);
+}
+
+void TestVoxelArea::test_index_xyz_y_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(247, -269, 100), 246);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(247, -269, 100), -989760747);
+}
+
+void TestVoxelArea::test_index_xyz_z_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(244, 336, -887), 243);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(244, 336, -887), -191478876);
+}
+
+void TestVoxelArea::test_index_xyz_xy_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(-365, -47, 6978), -366);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(-365, -47, 6978), 1493679101);
+}
+
+void TestVoxelArea::test_index_xyz_yz_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(66, -58, -789), 65);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(66, -58, -789), 1435362734);
+}
+
+void TestVoxelArea::test_index_xyz_xz_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(-36, 589, -992), -37);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(-36, 589, -992), -1934371362);
+}
+
+void TestVoxelArea::test_index_xyz_all_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(-88, -99, -1474), -89);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(-88, -99, -1474), -1343473846);
+}
+
+void TestVoxelArea::test_index_v3s16_all_pos()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(156, 25, 236)), 155);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(156, 25, 236)), 1267138774);
+}
+
+void TestVoxelArea::test_index_v3s16_x_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(-147, 25, 366)), -148);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(-147, 25, 366)), -870244825);
+}
+
+void TestVoxelArea::test_index_v3s16_y_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(247, -269, 100)), 246);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(247, -269, 100)), -989760747);
+}
+
+void TestVoxelArea::test_index_v3s16_z_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(244, 336, -887)), 243);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(244, 336, -887)), -191478876);
+}
+
+void TestVoxelArea::test_index_v3s16_xy_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(-365, -47, 6978)), -366);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(-365, -47, 6978)), 1493679101);
+}
+
+void TestVoxelArea::test_index_v3s16_yz_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(66, -58, -789)), 65);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(66, -58, -789)), 1435362734);
+}
+
+void TestVoxelArea::test_index_v3s16_xz_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(-36, 589, -992)), -37);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(-36, 589, -992)), -1934371362);
+}
+
+void TestVoxelArea::test_index_v3s16_all_neg()
+{
+	VoxelArea v1;
+	UASSERTEQ(s32, v1.index(v3s16(-88, -99, -1474)), -89);
+
+	VoxelArea v2(v3s16(756, 8854, -875), v3s16(-147, -9547, 669));
+	UASSERTEQ(s32, v2.index(v3s16(-88, -99, -1474)), -1343473846);
+}
+
+void TestVoxelArea::test_add_x()
+{
+	v3s16 extent;
+	u32 i = 4;
+	VoxelArea::add_x(extent, i, 8);
+	UASSERTEQ(u32, i, 12)
+}
+
+void TestVoxelArea::test_add_y()
+{
+	v3s16 extent(740, 16, 87);
+	u32 i = 8;
+	VoxelArea::add_y(extent, i, 88);
+	UASSERTEQ(u32, i, 65128)
+}
+
+void TestVoxelArea::test_add_z()
+{
+	v3s16 extent(114, 80, 256);
+	u32 i = 4;
+	VoxelArea::add_z(extent, i, 8);
+	UASSERTEQ(u32, i, 72964)
+}
+
+void TestVoxelArea::test_add_p()
+{
+	v3s16 extent(33, 14, 742);
+	v3s16 a(15, 12, 369);
+	u32 i = 4;
+	VoxelArea::add_p(extent, i, a);
+	UASSERTEQ(u32, i, 170893)
+}