Re: [PATCH] archive: add test testing MIME for created archive through compression filter

> I think a lot more portable and robust way to test the feature is to
> configure git config tar.tar.test.command (or come up with a name for
> a suffix to be used in the test), point it at a script created in this
> test script and run git archive with output filename that would trigger
> the command.  Then, arrange the test to notice if the "test" script was
> called with expected command line arguments and standard input.
> 
> That way, you do not need to rely on prereqs and you do not have to
> resort to un-portable use of the "file" command.  After all, you are
> *not* testing if "bzip2 -c" the user happens to have on their $PATH
> produces output their "find" recognises as bzip2 compressed.
>