Author: Thomas Rabaix (thomas.rabaix@sonata-project.org)
Inheritance: implements Sonata\Exporter\Writer\TypedWriterInterface
 public function testWithBom()
 {
     $writer = new CsvWriter($this->filename, ',', '"', '', true, true);
     $writer->open();
     $writer->write(array('name' => 'Rémi , ""2"', 'surname' => 'doe ', 'year' => '2001'));
     $writer->close();
     $expected = chr(0xef) . chr(0xbb) . chr(0xbf) . 'name,surname,year' . "\n" . '"Rémi , """"2""","doe ",2001';
     $this->assertEquals($expected, trim(file_get_contents($this->filename)));
 }