René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Use cmake to import a test library. So we can add testing to the project.","articleBody":"I don't have much exp with catch2. Though I think it wouldn't take much work to setup. This site shows an example of how to add catch2 via cmake: https://cliutils.gitlab.io/modern-cmake/chapters/projects/fetch.html\r\n\r\nhttps://github.com/catchorg/Catch2/blob/devel/docs/other-macros.md shows STATIC_REQUIRE which can be used as a static_assert but it'll show as a pass or fail instead of just failing to compile. Since the code is constexpr I figure something like this would be a good way to go.\r\n\r\nOr maybe we could try https://github.com/boost-ext/ut\r\nFrom the talks I saw it seems neat. ~~I don't know if it's got a static_require like thing or if it needs it.~~ To test the constexpr, since this just uses lambdas, is just assign to a constexpr variable in the lambda and require it to be true.\r\n\r\nexample  ut.cmake file.\r\n```cmake\r\nenable_testing()\r\ninclude(FetchContent)\r\nFetchContent_Declare(\r\n        ut\r\n        GIT_REPOSITORY https://github.com/boost-ext/ut.git\r\n        GIT_TAG        v1.1.8\r\n)\r\n#FetchContent_MakeAvailable(ut) #includes everything\r\n#Below filters out building stuff in this repo when you build all.\r\nFetchContent_GetProperties(ut)\r\nif(NOT ut_POPULATED)\r\n    FetchContent_Populate(ut)\r\n    add_subdirectory(${ut_SOURCE_DIR} ${ut_BINARY_DIR} EXCLUDE_FROM_ALL)\r\nendif()\r\n```\r\nTo use this afterwards: (based on example on ut's readme)\r\n```cmake\r\ninclude(cmake/ut.cmake)\r\nadd_executable(ut_1\r\n        ut_1.cpp)\r\ntarget_link_libraries(ut_1 PRIVATE boost::ut)\r\n```","author":{"url":"https://github.com/Sebanisu","@type":"Person","name":"Sebanisu"},"datePublished":"2021-03-01T03:10:38.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/3/An-Algorithm-Library/issues/3"}