Add unit tests for SpecialLayer::updateCache.

3 files changed, 231 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 581b145f6..a1726b768 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1892,6 +1892,7 @@ manaplustests_SOURCES = ${manaplus_SOURCES} \
 	      resources/dye/dyepalette_unittest.cc \
 	      integrity_unittest.cc \
 	      utils/chatutils_unittest.cc \
+	      resources/map/speciallayer_unittest.cc \
 	      resources/map/maplayer_unittest.cc \
 	      resources/resourcemanager/resourcemanager_unittest.cc \
 	      gui/windowmanager_unittest.cc
diff --git a/src/resources/map/speciallayer.h b/src/resources/map/speciallayer.h
index f418aec7c..8f6f914d3 100644
--- a/src/resources/map/speciallayer.h
+++ b/src/resources/map/speciallayer.h
@@ -66,6 +66,14 @@ class SpecialLayer final : public MemoryCounter
 
         void updateCache();
 
+#ifdef UNITTESTS
+        const int *getCache() const
+        { return mCache; }
+
+        MapItem **getTiles() const
+        { return mTiles; }
+#endif  // UNITTESTS
+
     private:
         const std::string mName;
         MapItem **mTiles;
diff --git a/src/resources/map/speciallayer_unittest.cc b/src/resources/map/speciallayer_unittest.cc
new file mode 100644
index 000000000..859876aa8
--- /dev/null
+++ b/src/resources/map/speciallayer_unittest.cc
@@ -0,0 +1,222 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2016-2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "catch.hpp"
+#include "client.h"
+
+#include "graphicsmanager.h"
+
+#include "being/actorsprite.h"
+
+#include "enums/resources/map/mapitemtype.h"
+
+#include "resources/sdlimagehelper.h"
+
+#include "resources/image/image.h"
+
+#include "resources/map/speciallayer.h"
+
+#include "resources/resourcemanager/resourcemanager.h"
+
+#include "utils/delete2.h"
+
+#include "debug.h"
+
+TEST_CASE("SpecialLayer updateCache")
+{
+    client = new Client;
+    ResourceManager::init();
+    resourceManager->addToSearchPath("data", Append_false);
+    resourceManager->addToSearchPath("../data", Append_false);
+
+    imageHelper = new SDLImageHelper;
+#ifdef USE_SDL2
+    SDLImageHelper::setRenderer(graphicsManager.createRenderer(
+        graphicsManager.createWindow(640, 480, 0,
+        SDL_WINDOW_SHOWN | SDL_SWSURFACE), SDL_RENDERER_SOFTWARE));
+#else  // USE_SDL2
+
+    graphicsManager.createWindow(640, 480, 0, SDL_ANYFORMAT | SDL_SWSURFACE);
+#endif  // USE_SDL2
+
+    ActorSprite::load();
+
+    SpecialLayer *layer = nullptr;
+
+    SECTION("simple 1")
+    {
+        layer = new SpecialLayer("test",
+            1, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 10000);
+    }
+
+    SECTION("simple 2")
+    {
+        layer = new SpecialLayer("test",
+            2, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 10000);
+        REQUIRE(cache[1] == 10000);
+    }
+
+    SECTION("simple 3")
+    {
+        layer = new SpecialLayer("test",
+            2, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        layer->setTile(1, 0, MapItemType::ARROW_DOWN);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 0);
+        REQUIRE(cache[1] == 10000);
+    }
+
+    SECTION("simple 4")
+    {
+        layer = new SpecialLayer("test",
+            2, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        layer->setTile(1, 0, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 0);
+        REQUIRE(cache[1] == 10000);
+    }
+
+    SECTION("simple 4.2")
+    {
+        layer = new SpecialLayer("test",
+            3, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        layer->setTile(2, 0, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 1);
+        REQUIRE(cache[1] == 0);
+        REQUIRE(cache[2] == 10000);
+    }
+
+    SECTION("simple 5")
+    {
+        layer = new SpecialLayer("test",
+            3, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        layer->setTile(1, 0, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 0);
+        REQUIRE(cache[1] == 10000);
+        REQUIRE(cache[2] == 10000);
+    }
+
+    SECTION("simple 6")
+    {
+        layer = new SpecialLayer("test",
+            3, 1);
+        layer->setTile(0, 0, MapItemType::ARROW_UP);
+        layer->setTile(1, 0, MapItemType::ARROW_UP);
+        layer->setTile(2, 0, MapItemType::ARROW_DOWN);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+        REQUIRE(cache[0] == 0);
+        REQUIRE(cache[1] == 0);
+        REQUIRE(cache[2] == 10000);
+    }
+
+    SECTION("normal 1")
+    {
+        layer = new SpecialLayer("test",
+            100, 100);
+        layer->setTile(1, 10, MapItemType::ARROW_UP);
+        layer->setTile(2, 10, MapItemType::ARROW_UP);
+        layer->setTile(3, 10, MapItemType::ARROW_UP);
+        layer->setTile(4, 10, MapItemType::ARROW_DOWN);
+        layer->setTile(5, 10, MapItemType::EMPTY);
+        layer->setTile(6, 10, MapItemType::ARROW_DOWN);
+        layer->setTile(7, 10, MapItemType::EMPTY);
+        layer->setTile(8, 10, MapItemType::EMPTY);
+        layer->setTile(9, 10, MapItemType::ARROW_DOWN);
+        layer->setTile(10, 10, MapItemType::ARROW_DOWN);
+        layer->setTile(11, 10, MapItemType::ARROW_LEFT);
+        layer->setTile(12, 10, MapItemType::EMPTY);
+        layer->setTile(13, 10, MapItemType::EMPTY);
+        layer->setTile(14, 10, MapItemType::EMPTY);
+        layer->setTile(15, 10, MapItemType::ARROW_UP);
+        layer->setTile(16, 10, MapItemType::ARROW_UP);
+        layer->setTile(17, 10, MapItemType::ARROW_UP);
+        const int *const cache = layer->getCache();
+        layer->updateCache();
+
+        REQUIRE(cache[10 * 100 + 0] == 0);
+        REQUIRE(cache[10 * 100 + 1] == 0);
+        REQUIRE(cache[10 * 100 + 2] == 0);
+        REQUIRE(cache[10 * 100 + 3] == 0);
+        REQUIRE(cache[10 * 100 + 4] == 1);
+        REQUIRE(cache[10 * 100 + 5] == 0);
+        REQUIRE(cache[10 * 100 + 6] == 2);
+        REQUIRE(cache[10 * 100 + 7] == 1);
+        REQUIRE(cache[10 * 100 + 8] == 0);
+        REQUIRE(cache[10 * 100 + 9] == 0);
+        REQUIRE(cache[10 * 100 + 10] == 0);
+        REQUIRE(cache[10 * 100 + 11] == 3);
+        REQUIRE(cache[10 * 100 + 12] == 2);
+        REQUIRE(cache[10 * 100 + 13] == 1);
+        REQUIRE(cache[10 * 100 + 14] == 0);
+        REQUIRE(cache[10 * 100 + 15] == 0);
+        REQUIRE(cache[10 * 100 + 16] == 0);
+        REQUIRE(cache[10 * 100 + 17] == 10000);
+    }
+
+    SECTION("normal2")
+    {
+        const int maxX = 100;
+        const int maxY = 100;
+        layer = new SpecialLayer("test",
+            maxX, maxY);
+        const int *const cache = layer->getCache();
+        for (int x = 0; x < maxX; x ++)
+        {
+            for (int y = 0; y < maxY; y ++)
+            {
+                layer->setTile(x, y, MapItemType::ARROW_UP);
+                REQUIRE(layer->getTiles()[x + y * maxX] != nullptr);
+            }
+        }
+        layer->updateCache();
+
+        for (int y = 0; y < maxY; y ++)
+        {
+            for (int x = 0; x < maxX - 1; x ++)
+            {
+                REQUIRE(cache[y * maxX + x] == 0);
+            }
+            REQUIRE(cache[y * maxX + maxX - 1] == 10000);
+        }
+    }
+
+    delete layer;
+    resourceManager->cleanOrphans();
+    delete2(client);
+}