CMake: Create unit test

CMakeLists.txt

@@ -33,6 +33,7 @@ option(USE_SYSTEM_CURL "Prefer system Curl instead of the prebuild one" ON)
 option(USE_SYSTEM_OPENCV "Prefer system OpenCV instead of the builtin one" ON)
 option(HAS_MEMORY_BREAKPOINTS "Add support for memory breakpoints to the interpreter" OFF)
 option(USE_LTO "Use LTO for building" ON)
+option(BUILD_RPCS3_TESTS "Build RPCS3 unit tests." OFF)
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/buildfiles/cmake")
 

rpcs3/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Define GNU standard installation directories
+# Define GNU standard installation directories
 include(GNUInstallDirs)
 
 # Generate git-version.h at build time.
@@ -214,3 +214,29 @@ if (NOT ANDROID)
             DESTINATION ${CMAKE_INSTALL_DATADIR}/rpcs3)
     endif()
 endif()
+
+# Unit tests
+if(BUILD_RPCS3_TESTS)
+    enable_testing()
+    find_package(GTest REQUIRED)
+
+    message(STATUS "Building unit tests...")
+
+    add_executable(rpcs3_test
+        tests/test_fmt.cpp
+    )
+
+    target_link_libraries(rpcs3_test
+        rpcs3_lib
+        GTest::gtest_main
+    )
+
+    target_include_directories(rpcs3_test
+        PUBLIC
+            ${CMAKE_CURRENT_SOURCE_DIR}
+            ${CMAKE_CURRENT_SOURCE_DIR}/..
+    )
+
+    include(GoogleTest)
+    gtest_discover_tests(rpcs3_test)
+endif()