Don't waste time on a service better suited to an integration test

tests/Traits/MocksPdoConnection.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Tests\Traits;
+
+use PDO;
+use Mockery;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\MySqlConnection;
+use Illuminate\Database\ConnectionResolver;
+
+trait MocksPdoConnection
+{
+    /**
+     * @var \Illuminate\Database\ConnectionResolverInterface|null
+     */
+    private static $initialResolver;
+
+    /**
+     * Generates a mock PDO connection and injects it into the models so that any actual
+     * DB call can be properly intercepted.
+     *
+     * @return \Mockery\MockInterface
+     */
+    protected function mockPdoConnection()
+    {
+        self::$initialResolver = Model::getConnectionResolver();
+
+        Model::unsetConnectionResolver();
+
+        $connection = new MySqlConnection($mock = Mockery::mock(PDO::class), 'testing_mock');
+        $resolver = new ConnectionResolver(['mocked' => $connection]);
+        $resolver->setDefaultConnection('mocked');
+
+        Model::setConnectionResolver($resolver);
+
+        return $mock;
+    }
+
+    /**
+     * Resets the mock state.
+     */
+    protected function tearDownPdoMock()
+    {
+        if (! self::$initialResolver) {
+            return;
+        }
+
+        Model::setConnectionResolver(self::$initialResolver);
+
+        self::$initialResolver = null;
+    }
+}