Fixed broken tests.

module/VuFind/src/VuFind/Tests/TestCase.php

@@ -125,6 +125,9 @@ abstract class TestCase extends \PHPUnit_Framework_TestCase
             $this->serviceManager->setService(
                 'SearchSpecsReader', new \VuFind\Config\SearchSpecsReader()
             );
+            $this->serviceManager->setService(
+                'Logger', new \VuFind\Log\Logger()
+            );
             \VuFind\Connection\Manager::setServiceLocator($this->serviceManager);
         }
         return $this->serviceManager;