Re: Adding facility for injection points (or probe points?) for more advanced tests

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Adding facility for injection points (or probe points?) for more advanced tests
Date: 2024-01-04 22:31:02
Message-ID: 20240104223102.GC1824373@nathanxps13
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On Thu, Jan 04, 2024 at 06:04:20PM +0530, Ashutosh Bapat wrote:
> 0003 and 0004 are using the extension in this module for some serious
> testing. The name of the extension test_injection_point indicates that
> it's for testing injection points and not for some serious use of
> injection callbacks it adds. Changes 0003 and 0004 suggest otherwise.

Yeah, I think test_injection_point should be reserved for testing the
injection point machinery.

> I suggest we move test_injection_points from src/test/modules to
> contrib/ and rename it as "injection_points". The test files may still
> be named as test_injection_point. The TAP tests in 0003 and 0004 once
> moved to their appropriate places, will load injection_point extension
> and use it. That way predefined injection point callbacks will also be
> available for others to use.

Rather than defining a module somewhere that tests would need to load,
should we just put the common callbacks in the core server? Unless there's
a strong reason to define them elsewhere, that could be a nice way to save
a step in the tests.

--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

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