boost output_test_stream counterpart in catch2

I'm currently considering to move from boost test to catch2. For the most part porting my code to catch went smoothly. But in one of my projects I'm using [`output_test_stream`](https://www.boost.org/doc/libs/1_67_0/libs/test/doc/html/boost/test_tools/output_test_stream.html) to do some integration tests and I couldn't figure out how this can be easily done with catch.

Did I miss something or is something like that not supported by catch? What would be the catch-ish way to do it?

Thanks!