fix tests

Author: clay-arras

.github/workflows/lint_greet.yml

@@ -1,7 +1,27 @@
 project(tests LANGUAGES CXX)
 
+# FETCH CONTENT ---------------------------------
+include(FetchContent)
+set(FETCHCONTENT_TRY_FIND_PACKAGE TRUE)
+
+FetchContent_Declare(
+  googletest
+  GIT_REPOSITORY https://github.com/google/googletest.git
+  GIT_TAG        v1.14.0
+  GIT_SHALLOW    TRUE
+  FIND_PACKAGE_ARGS CONFIG 
+)
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
+FetchContent_MakeAvailable(googletest)
+
 # EXECUTABLES ---------------------------------
+enable_testing()
+
 add_executable(playground playground.cpp)
 target_link_libraries(playground
   PRIVATE pytokenizer
-)
+)
+
+include(GoogleTest)
+# gtest_discover_tests(_tests PROPERTIES LABELS "library_tests")