Add unit tests

Use bdd-for-c for unit tests.

CMakeLists.txt

@@ -8,6 +8,7 @@ set(CMAKE_C_STANDARD 11)
 include_directories(
 	"${PROJECT_SOURCE_DIR}/dependencies/SDL2/include"
 	"${PROJECT_SOURCE_DIR}/dependencies/minIni/dev"
+	"${PROJECT_SOURCE_DIR}/dependencies/bdd-for-c"
 )
 
 if (WIN32)
@@ -18,18 +19,46 @@ if (WIN32)
 	endif ()
 endif ()
 
-link_directories("${PROJECT_SOURCE_DIR}/dependencies/SDL2/lib/${PROJECT_ARCH}")
+link_directories(
+	"${PROJECT_SOURCE_DIR}/dependencies/SDL2/lib/${PROJECT_ARCH}"
+)
+
+add_executable(
+	game
+		dependencies/minIni/dev/minIni.h
+		dependencies/minIni/dev/minIni.c
+		src/packages/game/config/IZ_config.h
+		src/packages/game/config/IZ_config.c
+		src/packages/game/IZ_common.h
+		src/packages/game/IZ_action.h
+		src/packages/game/IZ_app.h
+		src/packages/game/IZ_app.c
+		src/packages/game/main.c
+)
+target_link_libraries(
+	game
+		SDL2main
+		SDL2
+)
+
 add_executable(
-	izanagi
-	dependencies/minIni/dev/minIni.h
-	dependencies/minIni/dev/minIni.c
-	src/packages/game/main.c
-		src/packages/game/config/IZ_config.h src/packages/game/config/IZ_config.c  src/packages/game/IZ_common.h src/packages/game/IZ_action.h src/packages/game/IZ_app.c src/packages/game/IZ_app.h)
-target_link_libraries(izanagi SDL2main SDL2)
+	game-test
+		dependencies/minIni/dev/minIni.h
+		dependencies/minIni/dev/minIni.c
+		src/packages/game/config/IZ_config.h
+		src/packages/game/config/IZ_config.c
+		dependencies/bdd-for-c/bdd-for-c.h
+		src/packages/game-test/config/IZ_config.c
+)
+target_link_libraries(
+	game-test
+		SDL2main
+		SDL2
+)
 
 if (WIN32)
-	add_custom_command(TARGET izanagi POST_BUILD
+	add_custom_command(TARGET game POST_BUILD
 		COMMAND ${CMAKE_COMMAND} -E copy_if_different  # which executes "cmake - E copy_if_different..."
 		"${PROJECT_SOURCE_DIR}/dependencies/SDL2/lib/${PROJECT_ARCH}/SDL2.dll"      # <--this is in-file
-		$<TARGET_FILE_DIR:izanagi>)                 # <--this is out-file path
+		$<TARGET_FILE_DIR:game>)                 # <--this is out-file path
 endif ()

dependencies.txt

@@ -1 +1,2 @@
 https://github.com/compuphase/minIni
+https://github.com/grassator/bdd-for-c

src/packages/game-test/config/IZ_config.c

@@ -0,0 +1,30 @@
+#include "bdd-for-c.h"
+#include "../../game/config/IZ_config.h"
+
+spec("config") {
+	describe("LoadConfig") {
+		static IZ_Config config;
+
+		it("should load default config values") {
+			IZ_LoadConfig(&config);
+
+			check(
+				config.video.width == 640,
+				"Default value for Video.Width is not loaded."
+			);
+			check(
+				config.video.height == 480,
+				"Default value for Video.Height is not loaded."
+			);
+			check(
+				config.video.max_fps == 30,
+				"Default value for Video.MaxFps is not loaded."
+			);
+
+			check(
+				config.input.gamepad_axis_threshold == 8000,
+				"Default value for Input.GamepadAxisThreshold is not loaded."
+			);
+		}
+	}
+}