Change testing to test with Redis

Author: mikebronner

composer.json

@@ -19,6 +19,7 @@
         "mockery/mockery": "0.9.*",
         "phpmd/phpmd": "^2.6",
         "phpunit/phpunit": "5.7.*",
+        "predis/predis": "*",
         "satooshi/php-coveralls" : "dev-master@dev",
         "sebastian/phpcpd": "*"
     },

phpunit.xml

@@ -27,7 +27,7 @@
     <php>
         <env name="APP_KEY" value="base64:Xgs1LQt1GdVHhD6qyYCXnyq61DE3UKqJ5k2SJc+Nw2g="/>
         <env name="APP_ENV" value="testing"/>
-        <env name="CACHE_DRIVER" value="array"/>
+        <env name="CACHE_DRIVER" value="redis"/>
         <env name="SESSION_DRIVER" value="array"/>
         <env name="QUEUE_DRIVER" value="sync"/>
         <env name="DB_CONNECTION" value="sqlite"/>