getFixtureExtension example

$request = $this->createRequest($payload);
        $parser = $this->createRequestParser();
        $wh = $parser->parse($request, $this->getSecret());
        $this->assertEquals($expected, $wh);
    }

    public static function getPayloads(): iterable
    {
        $currentDir = \dirname((new \ReflectionClass(static::class))->getFileName());
        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($currentDir.'/Fixtures', \RecursiveDirectoryIterator::SKIP_DOTS)) as $file) {
            $filename = str_replace($currentDir.'/Fixtures/', '', $file->getPathname());
            if (static::getFixtureExtension() !== pathinfo($filename, \PATHINFO_EXTENSION)) {
                continue;
            }

            yield $filename => [
                file_get_contents($file),
                include(str_replace('.'.static::getFixtureExtension(), '.php', $file->getPathname())),
            ];
        }
    }

    abstract protected function createRequestParser(): RequestParserInterface;