Behat/Mink/Selenium2 element is not visible

Question

I'm writing my tests with behat and I'm facing a problem when I try to call fillField on a input inside a bootstrap modal. When I send fillField in this input selenium throws an exception saying:

Element is not currently visible and so may not be interacted with

I've created a selenium (via selenium IDE) test manually and called type on the same field and it worked fine.

$page = $this->getSession()->getPage()
$page->fillField("id_item", $value);

The $value is a parameter from my test. I've tried to call a function to wait some seconds, but it didn't worked as well.

UPDATE:

Scenario:

Scenario: Realizar Pedido de Compra
Given I am on "/"
When I fill the form with "{\"id\": 1, \"items\":[{\"id_item\": 1}]}"
Then I should see "Ok"

My FeatureContext:

/**
 * @When I fill the form with :arg1
 */
public function iFillForm($json) {
    $formHelper = FormHelper::getInstance($this->getSession());
    $formHelper->fill($json);
}

In my class FormHelper:

public function fill($json) {
    $handler = new SelectorsHandler();
    $handler->registerSelector("css", new CssSelector());
    $fileJson = json_decode($json, true);
    $page = $this->session->getPage();
    foreach ($json as $key => $value) {
       if (is_array($value)) {
          $addSubGrid = $page->find("css", "#btn-plus-" . $key);
          if ($addSubGrid != null) {
             $subGrid = $page->find("css", "#" . $key);
             $formId = $subGrid->getAttribute("data-form");
             $ok = $page->find("css", "#$formId .btn-ok");
             foreach ($value as $formItem) {
                $itemFilled = array();
                $addSubGrid->click();
                $this->session->wait(
                   1000, "$('#modal-$formId').is(':visible')"
                );
                $this->fillForm($page, array("form-item" => $formItem), $itemFilled, false);
                $ok->press();
             }
          }
       } else {
          $page->fillField($key, $value);
       }
    }

The $addSubGrid var is the elment to show the modal. When I execute the test it opens the modal but when it goes into $page->fillField($key, $value) it does not work.

UPDATE I've found that I was trying to fill a disabled field. I've enabled it and the problem now is that it does not fill the fields inside the modal, just the ones outside.

Answer 1

I've managed to solve this using the setValue from the driver manually. It seems there's a bug with fillField from mink. I've used:

$this->session->getDriver()->setValue('//*[@id="'.$key.'"]', $value);

instead of

$page->fillField($key, $value);