Symfony2 functional testing InvalidArgumentException: The current node list is empty

Question

I get \"InvalidArgumentException: The current node list is empty.\" running functional tests through PHPUnit. Here is test i wrote:

public function testAdd()         


        

Answer 1

I had the same problem with Silex application. I was looking for

$buttonCrawler = $crawler->selectButton('input[type="submit"]');

Instead, the correct way to do it is give the value of the button

$buttonCrawler = $crawler->selectButton('value_of_the_button');

For example, in your page:

    ...
    

And in your tests:

$buttonCrawler = $crawler->selectButton('Click Me');
$form = $buttonCrawler->form();
...