Move GTest lookup into tests

For some reason, the tests can't find the imported GTest targets otherwise.

Author: TheAssassin

lib/CMakeLists.txt

@@ -76,8 +76,3 @@ if(NOT USE_SYSTEM_ARGS)
 
     import_args()
 endif()
-
-# Google Test framework
-if(BUILD_TESTING AND NOT TARGET GTest::gtest)
-    find_package(GTest REQUIRED)
-endif()

tests/CMakeLists.txt

@@ -1,12 +1,14 @@
 enable_testing()
 include(CTest)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+find_package(GTest REQUIRED)
 
 add_executable(test_zsutil test_zsutil.cpp)
 target_link_libraries(test_zsutil PRIVATE libzsync2 GTest::gtest cpr)
-add_test(NAME test_zsutil COMMAND test_zsutil)
+gtest_discover_tests(test_zsutil)
 
 add_executable(test_zshash test_zshash.cpp)
 target_link_libraries(test_zshash PRIVATE libzsync2 GTest::gtest cpr)
-add_test(NAME test_zshash COMMAND test_zshash)
+gtest_discover_tests(test_zshash)