getGuesser example

$path = __DIR__.'/Fixtures/mimetypes/to_delete';
        if (file_exists($path)) {
            @chmod($path, 0666);
            @unlink($path);
        }
    }

    abstract protected function getGuesser(): MimeTypeGuesserInterface;

    public function testGuessWithLeadingDash()
    {
        if (!$this->getGuesser()->isGuesserSupported()) {
            $this->markTestSkipped('Guesser is not supported');
        }

        $cwd = getcwd();
        chdir(__DIR__.'/Fixtures/mimetypes');
        try {
            $this->assertEquals('image/gif', $this->getGuesser()->guessMimeType('-test'));
        } finally {
            chdir($cwd);
        }
    }

    

class MimeTypesTest extends AbstractMimeTypeGuesserTestCase
{
    protected function getGuesser(): MimeTypeGuesserInterface
    {
        return new MimeTypes();
    }

    public function testUnsupportedGuesser()
    {
        $guesser = $this->getGuesser();
        $guesser->registerGuesser(new class() implements MimeTypeGuesserInterface {
            public function isGuesserSupported(): bool
            {
                return false;
            }

            public function guessMimeType(string $mimeType): ?string
            {
                throw new RuntimeException('Should never be called.');
            }
        });
        

class DoctrineOrmTypeGuesserTest extends TestCase
{
    /** * @dataProvider requiredType */
    public function testTypeGuesser(string $type, $expected)
    {
        $classMetadata = $this->createMock(ClassMetadata::class);
        $classMetadata->fieldMappings['field'] = true;
        $classMetadata->expects($this->once())->method('getTypeOfField')->with('field')->willReturn($type);

        $this->assertEquals($expected, $this->getGuesser($classMetadata)->guessType('TestEntity', 'field'));
    }

    public static function requiredType()
    {
        yield [Types::DATE_IMMUTABLE, new TypeGuess('Symfony\Component\Form\Extension\Core\Type\DateType', ['input' => 'datetime_immutable'], Guess::HIGH_CONFIDENCE)];
        yield [Types::DATE_MUTABLE, new TypeGuess('Symfony\Component\Form\Extension\Core\Type\DateType', [], Guess::HIGH_CONFIDENCE)];

        yield [Types::TIME_IMMUTABLE, new TypeGuess('Symfony\Component\Form\Extension\Core\Type\TimeType', ['input' => 'datetime_immutable'], Guess::HIGH_CONFIDENCE)];
        yield [Types::TIME_MUTABLE, new TypeGuess('Symfony\Component\Form\Extension\Core\Type\TimeType', [], Guess::HIGH_CONFIDENCE)];

        yield [Types::DATETIME_IMMUTABLE, new TypeGuess('Symfony\Component\Form\Extension\Core\Type\DateTimeType', ['input' => 'datetime_immutable'], Guess::HIGH_CONFIDENCE)];