Command-line interface for test runner

[jibsen]

A command-line interface for selecting tests and setting options would be nice.

[nemequ]

I had been thinking that it would be necessary to allow people to parse their own options, too, but I think with #7 we could have something completely generic which would still be powerful enough to accommodate pretty much everyone.

[jibsen]

You could parse options until -- (normal end of arguments), or --args (bit like gdb), and then leave the rest to the user code? I realize there are a lot of options here and what works will depend on use case.

I just know the first thing I did after compiling was example --help 😊.

[nemequ]

I hadn't really considered that, though TBH I'm not really a fan. It's good if you are going to exec something else, but IMHO it's a bit weird for something like this. On the plus side, it would allow you to handle nonoptions fairly elegantly, which is something I hadn't figured out.

If µnit supported parameterized tests, though, the use case for customizing the CLI becomes much smaller. The generic interface could handle something like ./run-tests --params "codec=zlib,level=3" /buffer/compress /single-byte/compress /single-byte/decompress.