filter() public method

{@inheritDoc}
public filter ( $content )
 public function testNullCallbacks()
 {
     $filter = new CallbackFilter();
     $value = "foo";
     $this->assertEquals($value, $filter->filter($value));
     $this->assertEquals($value, $filter->filterFile($value, '/js/js_1.js', new \SplFileInfo(__DIR__ . '/_files/js/js_1.js'), null, null));
 }