PHP 8.2: tests error out on "Use of "parent" in callables is deprecated"

[jrfnl]

Description

PHP 8.2 is slated to deprecate partially supported callables.

From the RFC:

Most of the callables deprecated here have a straightforward replacement: "self" should be replaced with self::class, and so on:

"self::method"       -> self::class . "::method"
"parent::method"     -> parent::class . "::method"
"static::method"     -> static::class . "::method"
["self", "method"]   -> [self::class, "method"]
["parent", "method"] -> [parent::class, "method"]
["static", "method"] -> [static::class, "method"]

The new form of these callables is no longer context-dependent. It will refer to the self/parent/static scope of where the callable has been created, rather than where is will be called.

During a preliminary test run for a project against PHP 8.2, I noticed that Mockery is heavily affected by this issue, with over half of the tests in the project I did the test run on erroring out on a Use of "parent" in callables is deprecated error.

How to reproduce

• Clone the https://github.com/jrfnl/bug-report-reproduction-scenarios/ repo
• Check out the mockery/php-8.2-error-with-partial-callables branch
• Run composer install
• Run vendor/bin/phpunit on PHP 8.2

Or examine the results of the workflows runs for this branch: https://github.com/jrfnl/bug-report-reproduction-scenarios/actions/runs/1985112787

Error

There was 1 error:

1) Jrf\Mockery\Scenario\Tests\FooTest::testSplitString with data set "simple test case" ('test,string', array('test', 'string'))
Use of "parent" in callables is deprecated

/home/runner/work/bug-report-reproduction-scenarios/bug-report-reproduction-scenarios/tests/FooTest.php:33

[jrfnl]

Closing as fixed via PR #1169