db cleanup/try phpunit with in-memory tests

config/database.php

@@ -39,21 +39,7 @@ return [
             'prefix' => '',
         ],
 
-        'travis' => [
-            'driver' => 'mysql',
-            'host' => env('DB_HOST'),
-            'port' => env('DB_PORT'),
-            'database' => env('DB_DATABASE'),
-            'username' => env('DB_USERNAME'),
-            'password' => env('DB_PASSWORD'),
-            'charset' => 'utf8',
-            'collation' => 'utf8_unicode_ci',
-            'prefix' => '',
-            'strict' => true,
-            'engine' => null,
-        ],
-
-        'testing' => [
+        'memory' => [
             'driver' => 'sqlite',
             'database' => ':memory:',
             'prefix' => '',

phpunit.xml

@@ -23,7 +23,7 @@
         <env name="APP_KEY" value="base64:ve66Z5Kt/zTN3p++0zOPu854PHfZkwJE5VuoFAlzHtI="/>
         <env name="APP_DEBUG" value="true"/>
         <env name="APP_LOG_LEVEL" value="debug"/>
-        <env name="DB_CONNECTION" value="unittest"/>
+        <env name="DB_CONNECTION" value="memory"/>
         <env name="CACHE_DRIVER" value="array"/>
         <env name="SESSION_DRIVER" value="array"/>
         <env name="QUEUE_DRIVER" value="sync"/>