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