chore(test): use cmake to download gtest (#84)

Author: HerrCai0907

.github/workflows/ci-test.yml

@@ -36,8 +36,6 @@ jobs:
           restore-keys: |
             ccache-${{ runner.os }}-build-
 
-      - run: sudo apt-get install libgtest-dev
-
       - run: npm run build
       - run: npm run lint
       - run: npm run test

tests/cpp/CMakeLists.txt

@@ -1,7 +1,12 @@
 enable_testing()
 
-find_package(GTest REQUIRED CONFIG)
 include(FetchContent)
+FetchContent_Declare(
+  googletest
+  URL https://github.com/google/googletest/releases/download/v1.16.0/googletest-1.16.0.tar.gz
+  DOWNLOAD_EXTRACT_TIMESTAMP TRUE
+)
+FetchContent_MakeAvailable(googletest)
 
 file(GLOB test_sources CONFIGURE_DEPENDS *.cpp ./utils/*.cpp) # innclude lit test by default