assertFileHookCalled example

$this->assertFalse(reset($files), 'Trying to load a file with an invalid status fails.');
    $this->assertFileHooksCalled([]);
  }

  /** * Load a single file and ensure that the correct values are returned. */
  public function testSingleValues() {
    // Create a new file entity from scratch so we know the values.     $file = $this->createFile('druplicon.txt', NULL, 'public');
    $by_fid_file = File::load($file->id());
    $this->assertFileHookCalled('load');
    $this->assertIsObject($by_fid_file);
    $this->assertEquals($file->id(), $by_fid_file->id(), 'Loading by fid got the same fid.');
    $this->assertEquals($file->getFileUri(), $by_fid_file->getFileUri(), 'Loading by fid got the correct filepath.');
    $this->assertEquals($file->getFilename(), $by_fid_file->getFilename(), 'Loading by fid got the correct filename.');
    $this->assertEquals($file->getMimeType(), $by_fid_file->getMimeType(), 'Loading by fid got the correct MIME type.');
    $this->assertEquals($file->isPermanent(), $by_fid_file->isPermanent(), 'Loading by fid got the correct status.');
    $this->assertTrue($by_fid_file->file_test['loaded'], 'file_test_file_load() was able to modify the file during load.');
  }

  /** * This will test loading file data from the database. */