ap2i/tests/Service/Storage/TemporaryFileStorageTest.php

<?php

use App\Service\Storage\TemporaryFileStorage;
use Gaufrette\Adapter\Local;
use Gaufrette\Filesystem;
use Knp\Bundle\GaufretteBundle\FilesystemMap;
use PHPUnit\Framework\TestCase;

class TemporaryFileStorageTest extends TestCase
{
    public function testGetStorageBaseDir(): void
    {
        $fileSystemMap = $this->getMockBuilder(FilesystemMap::class)
            ->disableOriginalConstructor()
            ->getMock();
        $fileSystem = $this->getMockBuilder(Filesystem::class)
            ->disableOriginalConstructor()
            ->getMock();
        $adapter = $this->getMockBuilder(Local::class)
            ->disableOriginalConstructor()
            ->getMock();

        $fileSystemMap->method('get')->willReturn($fileSystem);
        $fileSystem->method('getAdapter')->willReturn($adapter);
        $adapter->expects($this->once())->method('write')->willReturnSelf();

        $storage = $this->getMockBuilder(TemporaryFileStorage::class)
            ->setConstructorArgs([$fileSystemMap])
            ->setMethodsExcept(['write'])
            ->getMock();

        $path = $storage->write('my_file.txt', 'some content');

        $this->assertMatchesRegularExpression(
            '/temp\/\d{8}_\d{6}_[\w\d]{8}\/my_file.txt/',
            $path
        );
    }
}