diff --git a/src/Connection.php b/src/Connection.php
index 4b11d41..6cb4beb 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -172,9 +172,49 @@ public function fetchQueueConsumers($queueName, string $columns = 'consumer_deta
         return $http->get($request)->json();
     }
 
+    /**
+     * Clean up resources
+     */
     public function __destruct()
     {
-        $this->channel->close();
-        $this->connection->close();
+        if ($this->channel) {
+            $this->channel->close();
+        }
+
+        if ($this->connection) {
+            $this->connection->close();
+        }
+    }
+
+    /**
+     * @return int
+     */
+    public function getConnectionTimeout()
+    {
+        return $this->connectionTimeout;
+    }
+
+    /**
+     * @return int
+     */
+    public function getReadWriteTimeout()
+    {
+        return $this->readWriteTimeout;
+    }
+
+    /**
+     * @return int
+     */
+    public function getHeartbeat()
+    {
+        return $this->heartbeat;
+    }
+
+    /**
+     * @return string
+     */
+    public function getVhost()
+    {
+        return $this->vhost;
     }
 }
diff --git a/tests/ConnectionTest.php b/tests/ConnectionTest.php
index 2522210..2405058 100644
--- a/tests/ConnectionTest.php
+++ b/tests/ConnectionTest.php
@@ -54,6 +54,7 @@ public function test_set_default_configurations_values()
     {
         $mConnection = $this->getMockBuilder(Connection::class)
             ->disableOriginalConstructor()
+            ->setMethods(null)
             ->getMock();
 
         $this->app->bind(Connection::class, function () use ($mConnection) {
@@ -61,10 +62,10 @@ public function test_set_default_configurations_values()
         });
         $connection = $this->app[Connection::class];
 
-        $this->assertAttributeEquals(15, 'heartbeat', $connection);
-        $this->assertAttributeEquals(30, 'readWriteTimeout', $connection);
-        $this->assertAttributeEquals(30, 'connectionTimeout', $connection);
-        $this->assertAttributeEquals('/', 'vhost', $connection);
+        $this->assertEquals(15, $connection->getHeartbeat());
+        $this->assertEquals(30, $connection->getReadWriteTimeout());
+        $this->assertEquals(30, $connection->getConnectionTimeout());
+        $this->assertEquals('/', $connection->getVhost());
     }
 
     public function test_set_altered_configurations_values()
@@ -88,9 +89,9 @@ public function test_set_altered_configurations_values()
 
         $connection = $this->app[Connection::class];
 
-        $this->assertAttributeEquals(30, 'heartbeat', $connection);
-        $this->assertAttributeEquals(60, 'readWriteTimeout', $connection);
-        $this->assertAttributeEquals(60, 'connectionTimeout', $connection);
-        $this->assertAttributeEquals('/test-vhost', 'vhost', $connection);
+        $this->assertEquals(30, $connection->getHeartbeat());
+        $this->assertEquals(60, $connection->getReadWriteTimeout());
+        $this->assertEquals(60, $connection->getConnectionTimeout());
+        $this->assertEquals('/test-vhost', $connection->getVhost());
     }
 }