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From: Tom Lane <[email protected]>
To: Peter Eisentraut <[email protected]>
Cc: Daniel Gustafsson <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: PostgreSQL Developers <[email protected]>
Subject: Re: TAP output format in pg_regress
Date: Mon, 04 Jul 2022 10:39:37 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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Peter Eisentraut <[email protected]> writes:
> I'm not sure what to make of all these options.  I think providing a TAP 
> output for pg_regress is a good idea.  But then do we still need the old 
> output?  Is it worth maintaining two output formats that display exactly 
> the same thing in slightly different ways?

Probably is, because this is bad:

> ... The proposed default format now hides the 
> fact that some tests are started in parallel.  I remember the last time 
> I wanted to tweak the output of the parallel tests, people were very 
> attached to the particular timing and spacing of the current output.  So 
> I'm not sure people will like this.

and so is this:

> The timing output is very popular.  Where is that in the TAP output?

Both of those things are fairly critical for test development.  You
need to know what else might be running in parallel with a test case,
and you need to know whether you just bloated the runtime unreasonably.

More generally, I'm unhappy about the proposal that TAP should become
the default output.  There is nothing particularly human-friendly
about it, whereas the existing format is something we have tuned to
our liking over literally decades.  I don't mind if there's a way to
get TAP when you're actually intending to feed it into a TAP-parsing
tool, but I am not a TAP-parsing tool and I don't see why I should
have to put up with it.

			regards, tom lane

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