Re: [PATCH] OAuth: fix performance bug with stuck multiplexer events - Mailing list pgsql-hackers

On Thu, Aug 7, 2025 at 1:45 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> I like the C TAP test.  PostgreSQL
> needs more of this.

I should add, I didn't look closely at that part since you said it's
not in scope for back-patching.  I'd like to, though, later.

I wonder if you would be interested in this attempt at centralised
infrastructure for unit testing our C code over here.  I'm not
suggesting it for your immediate problem, just noting the overlap:

https://www.postgresql.org/message-id/flat/CA%2BhUKG%2BajSQ_8eu2AogTncOnZ5me2D-Cn66iN_-wZnRjLN%2Bicg%40mail.gmail.com

Basically I would like to be able to dump easy-to-write files into the
tree that say stuff like this ↓ and have the build scripts find them,
build them and test them without all the module boilerplate stuff or a
running server (though that aspect is obviously not relevant for your
frontend case).  Like you find in googletest or various xunit-style
systems in other projects, but integrated with our TAP universe (or
whatever replaces it if we escape from Perl).  But I never got the
configure part of it working.

 PG_BEGIN_TESTS();
 ...
 PG_EXPECT_EQ(pg_preadv(fd, iov, 2, 11), 0);
 PG_EXPECT_EQ(pg_pread(fd, buffer, 10, 0), 10);
 PG_EXPECT_EQ_STR(buffer, "helloworld");
 ...
 PG_END_TESTS();