fix some tests

plugins/UserCountry/tests/Unit/UserCountryTest.php

@@ -109,6 +109,9 @@ class UserCountryTest extends \PHPUnit_Framework_TestCase
      */
     public function testGeoIpDownloadInvalidUrl($url)
     {
+        // unset translations, otherwise Exception message will be translated
+        StaticContainer::get('Piwik\Translation\Translator')->reset();
+
         $updater = new Piwik_UserCountry_GeoIPAutoUpdater_publictest();
         try {
             $updater->downloadFile('loc', $url);