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) {
      $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);
  }

}