see [restc-cpp/include/restc-cpp/test_helper.h](https://github.com/jgaa/restc-cpp/blob/master/include/restc-cpp/test_helper.h). - [ ] [Catch](https://github.com/philsquared/Catch): [test cases](https://github.com/philsquared/Catch/blob/master/docs/test-cases-and-sections.md#top), [assertions](https://github.com/philsquared/Catch/blob/master/docs/assertions.md#top) - [ ] [Boost.Test](http://www.boost.org/doc/libs/1_65_1/libs/test/doc/html/index.html) - [ ] [Google Test](https://github.com/google/googletest) - [ ] [UnitTest++](https://github.com/unittest-cpp/unittest-cpp/wiki/Macro-and-Parameter-Referencep)
