Build GoogleTest & GoogleMock as submodules (#3760)

.github/workflows/test.yml

@@ -64,8 +64,7 @@ jobs:
                 libxcb-image0 \
                 libxcb-keysyms1 \
                 libxcb-render-util0 \
-                libxcb-xinerama0 \
+                libxcb-xinerama0
-                libgtest-dev
 
       - name: Create build directory (Ubuntu)
         if: startsWith(matrix.os, 'ubuntu')

.gitmodules

@@ -32,3 +32,6 @@
 [submodule "lib/magic_enum"]
 	path = lib/magic_enum
 	url = https://github.com/Neargye/magic_enum
+[submodule "lib/googletest"]
+	path = lib/googletest
+	url = https://github.com/google/googletest.git

CMakeLists.txt

@@ -102,7 +102,18 @@ find_package(RapidJSON REQUIRED)
 find_package(Websocketpp REQUIRED)
 
 if (BUILD_TESTS)
-    find_package(GTest REQUIRED)
+    add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/lib/googletest" "lib/googletest")
+
+    mark_as_advanced(
+        BUILD_GMOCK BUILD_GTEST BUILD_SHARED_LIBS
+        gmock_build_tests gtest_build_samples gtest_build_tests
+        gtest_disable_pthreads gtest_force_shared_crt gtest_hide_internal_symbols
+    )
+
+    set_target_properties(gtest PROPERTIES FOLDER lib)
+    set_target_properties(gtest_main PROPERTIES FOLDER lib)
+    set_target_properties(gmock PROPERTIES FOLDER lib)
+    set_target_properties(gmock_main PROPERTIES FOLDER lib)
 endif ()
 
 if (BUILD_BENCHMARKS)

tests/CMakeLists.txt

@@ -25,7 +25,7 @@ add_sanitizers(${PROJECT_NAME})
 
 target_link_libraries(${PROJECT_NAME} PRIVATE chatterino-lib)
 
-target_link_libraries(${PROJECT_NAME} PRIVATE ${GTEST_BOTH_LIBRARIES})
+target_link_libraries(${PROJECT_NAME} PRIVATE gtest gmock)
 
 target_compile_definitions(${PROJECT_NAME} PRIVATE
     CHATTERINO_TEST