Regression in match function coverage

[hemberger]

Q	A
php-code-coverage version	9.2.13
PHP version	8.1.3
Driver	Xdebug
Xdebug version (if used)	3.1.3
Installation Method	Composer
Usage Method	PHPUnit
PHPUnit version (if used)	9.5.14

As recently as php-code-coverage 9.2.11, the builtin match function reported coverage for each matching case. In 9.2.13, the cases are not even marked as coverable. Is this expected behavior? It seems quite useful to me to know which match cases are covered by tests.

Here is an example class:

<?php declare(strict_types=1);

namespace Smr;

class Bla {

    public int $foo;

    public function __construct(string $bar) {
        $this->foo = match ($bar) {
            'a' => 1,
            'b' => 2,
            'c' => 3,
            // Some comments
            default => 4,
        };
    }   

}

And here is the corresponding test:

<?php declare(strict_types=1);

use Smr\Bla;

/**
 * @covers Smr\Bla
 */
class BlaTest extends \PHPUnit\Framework\TestCase {

    public function test_a() : void {
        $bla = new Bla('a');
        self::assertSame(1, $bla->foo);
    }   

    public function test_b() : void {
        $bla = new Bla('b');
        self::assertSame(2, $bla->foo);
    }   

    public function test_default() : void {
        $bla = new Bla('xyz');
        self::assertSame(4, $bla->foo);
    }   

}

Here is the coverage report from 9.2.11:

(Note that the tests covering cases 'a', 'b', and default are test_a, test_b, and test_default respectively, as expected.)

And here is the coverage report from 9.2.13:

Thanks for your time!

[sebastianbergmann]

CC @Slamdunk