Browscap\Writer\WriterCollection::renderHeader PHP Method

    public function renderHeader(array $comments = [])
    {
        foreach ($this->writers as $writer) {
            $writer->renderHeader($comments);
        }
        return $this;
    }

 /**
  * tests rendering the header information
  *
  * @group writer
  * @group sourcetest
  */
 public function testRenderHeader()
 {
     $header = array('TestData to be renderd into the Header');
     $mockWriter = $this->getMock('\\Browscap\\Writer\\CsvWriter', array(), array(), '', false);
     self::assertSame($this->object, $this->object->addWriter($mockWriter));
     self::assertSame($this->object, $this->object->renderHeader($header));
 }