moved from Catch to doctest for unit tests

test/src/unit-readme.cpp

@@ -27,7 +27,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 */
 
-#include "catch.hpp"
+#include "doctest_compatibility.h"
 
 #include <nlohmann/json.hpp>
 using nlohmann::json;
@@ -35,16 +35,19 @@ using nlohmann::json;
 #include <deque>
 #include <forward_list>
 #include <list>
+#include <set>
 #include <unordered_map>
 #include <unordered_set>
 #include <iostream>
+#include <sstream>
+#include <iomanip>
 
 #if defined(_MSC_VER)
     #pragma warning (push)
     #pragma warning (disable : 4189) // local variable is initialized but not referenced
 #endif
 
-TEST_CASE("README", "[hide]")
+TEST_CASE("README" * doctest::skip())
 {
     {
         // redirect std::cout for the README file