Testing Symfony validation with Panther - php

Question

I'm testing my validations and I send wrong values in all my input :
$crawler = $this->client->getCrawler();
$form = $crawler->selectButton('Créer')->form();
$form->setValues([
'Contractor[lastName]' => str_repeat('maxLength', self::OVER_MAX_LENGTH,),
'Contractor[firstName]' => str_repeat('maxLength', self::OVER_MAX_LENGTH,),
'Contractor[email]' => str_repeat('maxLength', self::OVER_MAX_LENGTH,).'#society.com',
'Contractor[phone]' => str_repeat('0', self::UNDER_MIN_LENGTH,),
'Contractor[password][password][first]' => 'first',
'Contractor[password][password][second]' => 'second',
'Contractor[status]' => 'admin.crud.user.field.choices.boss'
]);
$this->client->submitForm('Créer');
$this->client->waitFor('.invalid-feedback');
$this->client->waitForVisibility('.invalid-feedback');
$this->client->takeScreenshot('add.png');
$totalErrors = $crawler->filter('div.invalid-feedback')->count();
$errorExpected = 5;
$this->assertNotCount($totalErrors, [$errorExpected]);
When I test I ask to wait until the errors are displayed. Then I count the number of errors and I compare. The problem is when this line is test $totalErrors = $crawler->filter('div.invalid-feedback')->count(); I've got an error which say :
Facebook\WebDriver\Exception\StaleElementReferenceException: stale element reference: element is not attached to the page document.
In the screenshot, the errors are displayed.
I really don't understand why because I asked to wait for the element to be in the DOM and I had no errors.
Any idea ?

Answer 1

It's possible that the Crawler instance you have has a "stale" HTML in its state. I don't know the exact internals, but what helped me with a similar case was to get a fresh crawler from the Client object:
// some actions that redraws the Client HTML
$crawler = $client->getCrawler();
$totalErrors = $crawler->filter('div.invalid-feedback')->count();