Re: Readd use of TAP subtests

From: Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Daniel Gustafsson <daniel(at)yesql(dot)se>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dagfinn Ilmari Mannsåker <ilmari(at)ilmari(dot)org>
Subject: Re: Readd use of TAP subtests
Date: 2022-02-25 13:39:15
Message-ID: d5305046-d733-a567-5164-b40094cea407@enterprisedb.com
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On 24.02.22 16:00, Andres Freund wrote:
> I've incidentally played with subtests yesterdays, when porting
> src/interfaces/libpq/test/regress.pl to a tap test. Unfortunately it seems
> that subtests aren't actually specified in the tap format, and that different
> libraries generate different output formats. The reason this matters somewhat
> is that meson's testrunner can parse tap and give nicer progress / error
> reports. But since subtests aren't in the spec it can't currently parse
> them...

Ok that's good to know. What exactly happens when it tries to parse
them? Does it not count them or does it fail somehow? The way the
output is structured

t/001_basic.pl ..
# Subtest: vacuumlo --help
ok 1 - exit code 0
ok 2 - goes to stdout
ok 3 - nothing to stderr
1..3
ok 1 - vacuumlo --help

it appears that it should be able to parse it nonetheless and should
just count the non-indented lines.

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