Fetch GoogleTest from Git repository instead of zip file

Author: 31ch

tests/CMakeLists.txt

@@ -1,9 +1,15 @@
+# GoogleTest requires at least C++17
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 include(FetchContent)
 FetchContent_Declare(
   googletest
-  DOWNLOAD_EXTRACT_TIMESTAMP
-  URL https://github.com/google/googletest/archive/609281088cfefc76f9d0ce82e1ff6c30cc3591e5.zip
+  GIT_REPOSITORY https://github.com/google/googletest.git
+  # https://github.com/google/googletest/releases
+  GIT_TAG        52eb8108c5bdec04579160ae17225d66034bd723 # v1.17.0
 )
+
 # For Windows: Prevent overriding the parent project's compiler/linker settings
 set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
 FetchContent_MakeAvailable(googletest)