Add tests

CMakeLists.txt

@@ -1,8 +1,10 @@
 cmake_minimum_required(VERSION 4.0)
 project("Minecraft-Community-Edition")
 
+option(MCE_BUILD_TESTS "Set this to ON to build tests" OFF)
 set(CMAKE_CXX_STANDARD 26)
 set(MCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/Minecraft-Community-Edition")
+
 include(cmake/Vendor.cmake)
 
 if (WIN32 AND ("${CMAKE_BUILD_TYPE}" MATCHES "Release"))
@@ -10,8 +12,14 @@ if (WIN32 AND ("${CMAKE_BUILD_TYPE}" MATCHES "Release"))
 endif ()
 
 file(GLOB_RECURSE MCE_SOURCES "${MCE_DIR}/*.cpp" "${MCE_DIR}/*.hpp" "${MCE_DIR}/*.c" "${MCE_DIR}/*.h")
-list(FILTER MCE_SOURCES EXCLUDE REGEX "Vendor")
+list(FILTER MCE_SOURCES EXCLUDE REGEX "Main.cpp")
-add_executable(${PROJECT_NAME} ${MCE_EXEC_TYPE} ${MCE_SOURCES})
+add_library(${PROJECT_NAME}-lib STATIC ${MCE_SOURCES})
+add_executable(${PROJECT_NAME} ${MCE_EXEC_TYPE} "${MCE_DIR}/Main.cpp")
 
-target_include_directories(${PROJECT_NAME} PUBLIC ${MCE_DIR})
+target_include_directories(${PROJECT_NAME}-lib PUBLIC ${MCE_DIR})
-target_link_libraries(${PROJECT_NAME} PRIVATE EASTL SFML::Graphics stdc++exp)
+target_link_libraries(${PROJECT_NAME}-lib PUBLIC EASTL SFML::Graphics stdc++exp)
+target_link_libraries(${PROJECT_NAME} PRIVATE ${PROJECT_NAME}-lib)
+
+if (MCE_BUILD_TESTS)
+    add_subdirectory(Tests)
+endif ()

Minecraft-Community-Edition/IO/InputStream.hpp

@@ -1,8 +1,15 @@
 #pragma once
 
+#include <cstdint>
+
 namespace mce {
 	class InputStream {
 	public:
 		virtual ~InputStream() = 0;
+
+		virtual size_t read(void* buffer, size_t size) = 0;
+		virtual size_t seek(size_t position) = 0;
+		virtual size_t tell() = 0;
+		virtual size_t getSize() = 0;
 	};
 }

Minecraft-Community-Edition/IO/OutputStream.hpp

@@ -1,8 +1,16 @@
 #pragma once
 
+#include <cstdint>
+
 namespace mce {
 	class OutputStream {
 	public:
 		virtual ~OutputStream() = 0;
+
+		virtual void flush() = 0;
+		virtual size_t write(void* buffer, size_t size) = 0;
+		virtual size_t seek(size_t position) = 0;
+		virtual size_t tell() = 0;
+		virtual size_t getSize() = 0;
 	};
 }

Tests/CMakeLists.txt

@@ -0,0 +1,3 @@
+enable_testing()
+
+add_subdirectory(InputStream)

Tests/InputStream/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 4.0)
+project("InputStream")
+include(GoogleTest)
+
+add_executable(${PROJECT_NAME} Main.cpp)
+
+target_link_libraries(${PROJECT_NAME} GTest::gtest_main)

cmake/Vendor.cmake

@@ -9,8 +9,22 @@ execute_process(
         COMMAND git config --global url.https://github.com/.insteadOf git@github.com:
 )
 
+cmake_policy(SET CMP0135 NEW) # Fix DOWNLOAD_EXTRACT_TIMESTAMP warning
+FetchContent_Declare(googletest
+        URL https://github.com/google/googletest/archive/52eb8108c5bdec04579160ae17225d66034bd723.zip
+        SOURCE_DIR ${FETCHCONTENT_BASE_DIR}/googletest
+        BINARY_DIR ${CMAKE_BINARY_DIR}/Vendor/googletest-build
+        SUBBUILD_DIR ${CMAKE_BINARY_DIR}/Vendor/googletest-subbuild
+)
 FetchContent_Declare(EASTL GIT_REPOSITORY https://github.com/electronicarts/EASTL.git)
 FetchContent_Declare(SFML GIT_REPOSITORY https://github.com/SFML/SFML.git)
 
 set(CMAKE_POLICY_VERSION_MINIMUM 3.5) # EACore uses an old version
 FetchContent_MakeAvailable(EASTL SFML)
+
+if (MCE_BUILD_TESTS)
+    # For Windows: Prevent overriding the parent project's compiler/linker settings
+    set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+    FetchContent_MakeAvailable(googletest)
+endif ()