How to handle confirm popup with phantomjs + behat + mink - symfony

Question

In my tests I use this step to confirm a javascript confirm popup:
/**
* #when /^(?:|I )confirm the popup$/
*/
public function confirmPopup()
{
$this->getSession()->getDriver()->getWebDriverSession()->accept_alert();
}
This step work fine with selenium2 and chrome/firefox, but doesn't work with phantomjs.
How can I handle a confirm popup with phantomjs ?
for informations:
symfony: 2.0.23
behat: 2.4.6
mink: 1.5.0
Symfony2Extension: 1.0.2
MinkExtension: 1.1.4
MinkBrowserKitDriver: 1.1.0
MinkSelenium2Driver: 1.1.0
phamtomjs 1.9.1
behat.yml
default:
extensions:
Behat\Symfony2Extension\Extension:
mink_driver: true
Behat\MinkExtension\Extension:
base_url: "http://localhost:8000/app_test.php"
default_session: selenium2
selenium2:
wd_host: "http://localhost:9876/wd/hub"
Thanks!
PS: Here the gist : https://gist.github.com/blazarecki/2888851

Answer 1

I updated my "Selenium2Driver.php" with the following:
public function acceptAlert()
{
$this->wdSession->accept_alert();
}
This makes the accept_alert() available for the driver.
So in the script, you could do something line this to accept the alert.
$this->getSession()->getDriver()->acceptAlert();
Note that I'm using the RawMinkContext not the native MinkContext

Answer 2

phantomjs is a headless browser, therefore all dialogs are not show and cannot be interacted with. A solution is to rewrite widnow.confirm and window.alert with your own functions that return pre-defined values.
Since a scenario runs within the same driver, it is perfectly safe to overwrite native methods with pre-defined return values (you will not have a situation where you really need to see a window within the same scenario). Moreover, it is safe to call these step definitions multiple times within a single scenario to flip returned value.
/**
* #When I accept confirmation dialogs
*/
public function acceptConfirmation() {
$this->getSession()->getDriver()->executeScript('window.confirm = function(){return true;}');
}
/**
* #When I do not accept confirmation dialogs
*/
public function acceptNotConfirmation() {
$this->getSession()->getDriver()->executeScript('window.confirm = function(){return false;}');
}
Scenario example:
Scenario: Removal of something with confirmation dialog
Given I accept confirmation dialogs
And I click a ".mylink" element
And I wait for AJAX to finish
And I should not see a ".some-removed-element" element