Date: Sun, 21 Jan 2024 17:13:57 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Alan Somers <asomers@freebsd.org> Cc: George Mitchell <george+freebsd@m5p.com>, freebsd-hackers@freebsd.org Subject: Re: The Case for Rust (in the base system) Message-ID: <202401211713.40LHDv6b025462@critter.freebsd.dk> In-Reply-To: <CAOtMX2inanNDXVz5V3ELp5ffUXny_EhJ6VjR0HXc4KLvzjikEw@mail.gmail.com> References: <CAOtMX2hAUiWdGPtpaCJLPZB%2Bj2yzNw5DSjUmkwTi%2B%2BmyemehCA@mail.gmail.com> <1673801705774097@mail.yandex.ru> <CANCZdfpqWgvV_RCvVO_pvTrmajQFspW%2BQ9TM_Ok3JrXZAfeAfA@mail.gmail.com> <ef4ad207-5899-42b6-8728-bc46f1417e9e@antonovs.family> <202401210751.40L7pWEF011188@critter.freebsd.dk> <40bc1694-ee00-431b-866e-396e9d5c07a2@m5p.com> <CAOtMX2hppfdu5ypDdGpfw_QDcd1rwJEeyVfSk9ogFEm7CiV6Kw@mail.gmail.com> <202401211626.40LGQDim013134@critter.freebsd.dk> <CAOtMX2inanNDXVz5V3ELp5ffUXny_EhJ6VjR0HXc4KLvzjikEw@mail.gmail.com>
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-------- Alan Somers writes: > > Why would such a test-tool live in src rather than ports ? > > I initially considered putting it in ports just for that reason. But > it's too tightly coupled to src. The tests need to change with every > feature addition or bug fix to src. I know exactly where you come from there: I had that exact problem in Varnish too. My solution was to separate the "test-running tool" from the "test-case description", by writing the latter in a DSL interpreted by the former. One very big advantage was the almost total elimination of "boiler-plate" in the test-case descriptions. You can see a typical "complex" test-case here: https://github.com/varnishcache/varnish-cache/blob/master/bin/varnishtest= /tests/c00016.vtc But there are so many other advantages that I could talk about this for hours, but we can do that in private email if you are interested :-) I'm not saying that the exact same idea can be used to test FUSE, but IMO you should /really/ try to find a solution along those lines. So yes, I feel your plight, but it does not convince me that we need to pay the huge cost of Rust in src. -- = Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe = Never attribute to malice what can adequately be explained by incompetence= .
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