class FileRepositoryTest

class FileRepositoryTest extends FileManagedUnitTestBase {
    
    /**
     * The file repository service under test.
     *
     * @var \Drupal\file\FileRepository
     */
    protected $fileRepository;
    
    /**
     * The file system service.
     *
     * @var \Drupal\Core\File\FileSystemInterface
     */
    protected $fileSystem;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->fileRepository = $this->container
            ->get('file.repository');
        $this->fileSystem = $this->container
            ->get('file_system');
    }
    
    /**
     * Tests the writeData() method.
     *
     * @covers ::writeData
     */
    public function testWithFilename() : void {
        $contents = $this->randomMachineName();
        // Using filename with non-latin characters.
        // cSpell:disable-next-line
        $filename = 'Текстовый файл.txt';
        $result = $this->fileRepository
            ->writeData($contents, 'public://' . $filename);
        $this->assertNotFalse($result, 'Unnamed file saved correctly.');
        $stream_wrapper_manager = \Drupal::service('stream_wrapper_manager');
        assert($stream_wrapper_manager instanceof StreamWrapperManagerInterface);
        $this->assertEquals('public', $stream_wrapper_manager::getScheme($result->getFileUri()), "File was placed in Drupal's files directory.");
        $this->assertEquals($filename, \Drupal::service('file_system')->basename($result->getFileUri()), 'File was named correctly.');
        $this->assertEquals($contents, file_get_contents($result->getFileUri()), 'Contents of the file are correct.');
        $this->assertEquals('text/plain', $result->getMimeType(), 'A MIME type was set.');
        $this->assertTrue($result->isPermanent(), "The file's status was set to permanent.");
        // Check that the correct hooks were called.
        $this->assertFileHooksCalled([
            'insert',
        ]);
        // Verify that what was returned is what's in the database.
        $this->assertFileUnchanged($result, File::load($result->id()));
    }
    
    /**
     * Tests writeData() when renaming around an existing file.
     *
     * @covers ::writeData
     */
    public function testExistingRename() : void {
        // Setup a file to overwrite.
        $existing = $this->createFile();
        $contents = $this->randomMachineName();
        $result = $this->fileRepository
            ->writeData($contents, $existing->getFileUri());
        $this->assertNotFalse($result, 'File saved successfully.');
        $stream_wrapper_manager = \Drupal::service('stream_wrapper_manager');
        assert($stream_wrapper_manager instanceof StreamWrapperManagerInterface);
        $this->assertEquals('public', $stream_wrapper_manager::getScheme($result->getFileUri()), "File was placed in Drupal's files directory.");
        $this->assertEquals($existing->getFilename(), $result->getFilename(), 'Filename was set to the basename of the source, rather than that of the renamed file.');
        $this->assertEquals($contents, file_get_contents($result->getFileUri()), 'Contents of the file are correct.');
        $this->assertEquals('application/octet-stream', $result->getMimeType(), 'A MIME type was set.');
        $this->assertTrue($result->isPermanent(), "The file's status was set to permanent.");
        // Check that the correct hooks were called.
        $this->assertFileHooksCalled([
            'insert',
        ]);
        // Ensure that the existing file wasn't overwritten.
        $this->assertDifferentFile($existing, $result);
        $this->assertFileUnchanged($existing, File::load($existing->id()));
        // Verify that was returned is what's in the database.
        $this->assertFileUnchanged($result, File::load($result->id()));
    }
    
    /**
     * Tests writeData() when replacing an existing file.
     *
     * @covers ::writeData
     */
    public function testExistingReplace() : void {
        // Setup a file to overwrite.
        $existing = $this->createFile();
        $contents = $this->randomMachineName();
        $result = $this->fileRepository
            ->writeData($contents, $existing->getFileUri(), FileExists::Replace);
        $this->assertNotFalse($result, 'File saved successfully.');
        $stream_wrapper_manager = \Drupal::service('stream_wrapper_manager');
        assert($stream_wrapper_manager instanceof StreamWrapperManagerInterface);
        $this->assertEquals('public', $stream_wrapper_manager::getScheme($result->getFileUri()), "File was placed in Drupal's files directory.");
        $this->assertEquals($existing->getFilename(), $result->getFilename(), 'Filename was set to the basename of the existing file, rather than preserving the original name.');
        $this->assertEquals($contents, file_get_contents($result->getFileUri()), 'Contents of the file are correct.');
        $this->assertEquals('application/octet-stream', $result->getMimeType(), 'A MIME type was set.');
        $this->assertTrue($result->isPermanent(), "The file's status was set to permanent.");
        // Check that the correct hooks were called.
        $this->assertFileHooksCalled([
            'load',
            'update',
        ]);
        // Verify that the existing file was re-used.
        $this->assertSameFile($existing, $result);
        // Verify that what was returned is what's in the database.
        $this->assertFileUnchanged($result, File::load($result->id()));
    }
    
    /**
     * Tests that writeData() fails overwriting an existing file.
     *
     * @covers ::writeData
     */
    public function testExistingError() : void {
        $contents = $this->randomMachineName();
        $existing = $this->createFile(NULL, $contents);
        // Check the overwrite error.
        try {
            $this->fileRepository
                ->writeData('asdf', $existing->getFileUri(), FileExists::Error);
            $this->fail('expected FileExistsException');
        } catch (FileExistsException $e) {
            // expected exception.
            $this->assertStringContainsString("could not be copied because a file by that name already exists in the destination directory", $e->getMessage());
        }
        $this->assertEquals($contents, file_get_contents($existing->getFileUri()), 'Contents of existing file were unchanged.');
        // Check that no hooks were called while failing.
        $this->assertFileHooksCalled([]);
        // Ensure that the existing file wasn't overwritten.
        $this->assertFileUnchanged($existing, File::load($existing->id()));
    }
    
    /**
     * Tests for an invalid stream wrapper.
     *
     * @covers ::writeData
     */
    public function testInvalidStreamWrapper() : void {
        $this->expectException(InvalidStreamWrapperException::class);
        $this->expectExceptionMessage('Invalid stream wrapper: foo://');
        $this->fileRepository
            ->writeData('asdf', 'foo://');
    }
    
    /**
     * Tests for entity storage exception.
     *
     * @covers ::writeData
     */
    public function testEntityStorageException() : void {
        
        /** @var \Drupal\Core\Entity\EntityTypeManager $entityTypeManager */
        $entityTypeManager = $this->prophesize(EntityTypeManager::class);
        $entityTypeManager->getStorage('file')
            ->willThrow(EntityStorageException::class);
        $fileRepository = new FileRepository($this->container
            ->get('file_system'), $this->container
            ->get('stream_wrapper_manager'), $entityTypeManager->reveal(), $this->container
            ->get('module_handler'), $this->container
            ->get('file.usage'), $this->container
            ->get('current_user'));
        $this->expectException(EntityStorageException::class);
        $target = $this->createFile();
        $fileRepository->writeData('asdf', $target->getFileUri(), FileExists::Replace);
    }
    
    /**
     * Tests loading a file by URI.
     *
     * @covers ::loadByUri
     */
    public function testLoadByUri() : void {
        $source = $this->createFile();
        $result = $this->fileRepository
            ->loadByUri($source->getFileUri());
        $this->assertSameFile($source, $result);
    }
    
    /**
     * Tests loading a file by case-sensitive URI.
     *
     * @covers ::loadByUri
     */
    public function testLoadByUriCaseSensitive() : void {
        $source = $this->createFile('FooBar.txt');
        $result = $this->fileRepository
            ->loadByUri('public://FooBar.txt');
        $this->assertSameFile($source, $result);
        $result = $this->fileRepository
            ->loadByUri('public://foobar.txt');
        $this->assertNull($result);
    }

}