Failure to resolve PDO as required extension in tests

[ltrk2]

Description

The following code:

--TEST--
test
--EXTENSIONS--
PDO
--FILE--
<?php
print("hello");
?>
--EXPECTF--
hello

When executed using the test runner as

php -n generated/run-tests.php -n -P -q test.phpt

Resulted in this output:

=====================================================================
Running selected tests.
SKIP test [test.phpt] reason: Required extension missing: PDO
=====================================================================
Number of tests :     1                 0
Tests skipped   :     1 (100.0%) --------
Tests warned    :     0 (  0.0%) (  0.0%)
Tests failed    :     0 (  0.0%) (  0.0%)
Tests passed    :     0 (  0.0%) (  0.0%)
---------------------------------------------------------------------
Time taken      :     0 seconds
=====================================================================

But I expected this output instead:

=====================================================================
Running selected tests.
=====================================================================
Number of tests :     1                 1
Tests skipped   :     0 (  0.0%) --------
Tests warned    :     0 (  0.0%) (  0.0%)
Tests failed    :     0 (  0.0%) (  0.0%)
Tests passed    :     1 (100.0%) (100.0%)
---------------------------------------------------------------------
Time taken      :     0 seconds
=====================================================================

It works fine in PHP 8.2. I'd gladly just use pdo, but we have a set of tests that run on versions 7.0 through 8.3 and the lower versions only support PDO.

What are your thoughts regarding this?

PHP Version

PHP 8.3.0

Operating System

Ubuntu 22.04

[SakiTakamachi]

Is it not the phpt that comes with php-src, but the phpt that you created yourself?

If so, you can implement skip by writing:

--TEST--
test
--SKIPIF--
<?php if (!extension_loaded('pdo')) die('skip pdo extension not loaded'); ?>
--FILE--
<?php
print("hello");
?>
--EXPECTF--
hello

[ltrk2]

@SakiTakamachi that's a viable option indeed, thanks for the suggestion!

Do you perhaps know what might be causing this difference between 8.2 and 8.3?

[SakiTakamachi]

@ltrk2
In my environment, "PDO" is not found even in 8.2...

[ltrk2]

I see.. the exact version I'm using is 8.2.4. Perhaps the change occurred some time after that. Both versions (8.3.0 & 8.2.4) are built using the same process from source on my end.

[SakiTakamachi]

Excuse me, I seem to have made a mistake in some operation. Reproduced in 8.2.

I identified the commit that made this change.
commit: b401001
PR: #8363

Previously, even if we passed "PDO", it would be converted to lower case and then compared, but it seems that the process of converting to lower case has disappeared.

[ltrk2]

@SakiTakamachi Indeed.. thank you for finding this! It all makes sense now. I greatly appreciate your help in figuring this out.

I also found the answer to another strange occurrence: using PHP 8.0 and below the EXTENSIONS section behaves differently because it was slightly repurposed in 6c9a056 which first made it into PHP 8.1.

All in all, my options are either using SKIPIF or patching run-tests.php as generated by old versions, since all of them are out of support.