Add test subdirectory

Author: adazem009

CMakeLists.txt

@@ -9,6 +9,8 @@ set(CMAKE_AUTORCC ON)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+option(SCRATCHCPPGUI_BUILD_UNIT_TESTS "Build unit tests" ON)
+
 include(build/FindQt.cmake)
 
 qt_standard_project_setup(REQUIRES 6.6)
@@ -26,3 +28,8 @@ target_link_libraries(libscratchcpp-gui PRIVATE scratchcpp)
 add_subdirectory(thirdparty/libqnanopainter)
 target_include_directories(libscratchcpp-gui PRIVATE thirdparty/libqnanopainter)
 target_link_libraries(libscratchcpp-gui PRIVATE qnanopainter)
+
+if (SCRATCHCPPGUI_BUILD_UNIT_TESTS)
+    enable_testing()
+    add_subdirectory(test)
+endif()

test/CMakeLists.txt

@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.14)
+project(libscratchcpp_test)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+add_compile_definitions(DATA_DIR="${CMAKE_CURRENT_SOURCE_DIR}")
+
+set(GTEST_DIR thirdparty/googletest)
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../${GTEST_DIR} ${CMAKE_CURRENT_BINARY_DIR}/${GTEST_DIR})
+
+# For Windows: Prevent overriding the parent project's compiler/linker settings
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+
+include(GoogleTest)
+
+function(add_test TARGET)
+    target_include_directories(${TARGET} PRIVATE ${CMAKE_SOURCE_DIR}/ScratchCPPGui)
+endfunction()

test/common.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <gtest/gtest.h>
+#include <filesystem>
+#include <fstream>
+
+int main(int argc, char **argv)
+{
+    std::filesystem::current_path(DATA_DIR);
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}