Behat: override Mink Selenium2Driver in order to add triggerSynScript method

Change-Id: Ic614ba1f1d26672cebd58acb00ba5ff6c711102c

htdocs/testing/frameworks/behat/features/extensions/MaharaExtension.php

@@ -254,4 +254,30 @@ class MaharaProgressFormatter extends ProgressFormatter {
 }
 
 
+use Behat\Mink\Driver\Selenium2Driver as Selenium2Driver;
+
+/**
+ * Selenium2 driver extension to allow extra selenium capabilities restricted by behat/mink-extension.
+ */
+class MaharaSelenium2Driver extends Selenium2Driver
+{
+
+    /**
+     * Public interface to run Syn scripts.
+     *
+     * @see self::executeJsOnXpath()
+     *
+     * @param  string   $xpath  the xpath to search with
+     * @param  string   $script the script to execute
+     * @param  Boolean  $sync   whether to run the script synchronously (default is TRUE)
+     *
+     * @return mixed
+     */
+    public function triggerSynScript($xpath, $script, $sync = true) {
+        return $this->withSyn()->executeJsOnXpath($xpath, $script, $sync);
+    }
+
+}
+
+
 return new MaharaExtension();

htdocs/testing/frameworks/behat/features/extensions/core.xml

@@ -7,6 +7,7 @@
         <parameter key="behat.mahara.parameters"></parameter>
         <parameter key="mahara.gherkin.class">MaharaGherkin</parameter>
         <parameter key="mahara.context.initializer.class">MaharaAwareInitializer</parameter>
+        <parameter key="behat.mink.driver.selenium2.class">MaharaSelenium2Driver</parameter>
     </parameters>
     <services>