Making 'Wikipedia' example for Behat to work - autocomplete ugly workaround

In documentation you can see there is a scenario with autocomplete
http://docs.behat.org/en/v2.5/cookbook/behat_and_mink.html

But this scenario won't work because of this line:

When I fill in "search" with "Behavior Driv"

The line only sets value of the input to "Behavior Driv" but autocomplete feature won't be triggered.
To fix this we introduce new keyword:

When I type "Behavior Driv" into search box

Adding implementation to FeatureContext:

     /**
     * @Then I type :text into search box
     */
    public function iTypeTextIntoSearchBox($text)
    {
        $element = $this->getSession()->getPage()->findById('searchInput');
        $script = "$('#searchInput').keypress();";
        $element->setValue($text);
        $this->getSession()->evaluateScript($script);
    }

Here after setting value to our text we execute jQuery's 'keypress' event as a result suggestion box appears.

Here is full content of the files:

test@test-VirtualBox:~/my-behat-tests$ cat features/bootstrap/FeatureContext.php
<?php

use Behat\Behat\Tester\Exception\PendingException;
use Behat\Behat\Context\Context;
use Behat\Behat\Context\SnippetAcceptingContext;
use Behat\Gherkin\Node\PyStringNode;
use Behat\Gherkin\Node\TableNode;

use Behat\MinkExtension\Context\MinkContext;


/**
 * Defines application features from the specific context.
 */
class FeatureContext extends MinkContext implements Context, SnippetAcceptingContext
{
    /**
     * Initializes context.
     *
     * Every scenario gets its own context instance.
     * You can also pass arbitrary arguments to the
     * context constructor through behat.yml.
     */
    public function __construct()
    {
    }

    /**
     * @When I wait for the suggestion box to appear
     */
    public function iWaitForTheSuggestionBoxToAppear()
    {
        $this->getSession()->wait(5000, "$('.suggestions-results').children().length > 0");
        PHPUnit_Framework_Assert::assertTrue($this->getSession()->getPage()->has('css', '.suggestions-results'), 'ERROR: Suggestions are not visible');
    }

    /**
     * @Then I type :text into search box
     */
    public function iTypeTextIntoSearchBox($text)
    {
        $element = $this->getSession()->getPage()->findById('searchInput');
        $script = "$('#searchInput').keypress();";
        $element->setValue($text);
        $this->getSession()->evaluateScript($script);
    }
}

test@test-VirtualBox:~/my-behat-tests$ cat features/CustomerRegistration.feature
Feature: Customer registration

  Scenario: Searching for a page that does exist
    Given I am on "/wiki/Main_Page"
    When I fill in "search" with "Behavior Driven Development"
    And I press "searchButton"
    Then I should see "agile software development"

  Scenario: Searching for a page that does NOT exist
    Given I am on "/wiki/Main_Page"
    When I fill in "search" with "Glory Driven Development"
    And I press "searchButton"
    Then I should see "Search results"

  @mink:selenium2
  Scenario: Searching for a page with autocompletion
    Given I am on "/wiki/Main_Page"
    When I type "behavior driv" into search box
    And I wait for the suggestion box to appear
    Then I should see "Behavior-driven development"