diff --git a/tests/Mail/MailRoundRobinTransportTest.php b/tests/Mail/MailRoundRobinTransportTest.php
new file mode 100644
index 000000000000..5b45f720faf0
--- /dev/null
+++ b/tests/Mail/MailRoundRobinTransportTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Illuminate\Tests\Mail;
+
+use Orchestra\Testbench\TestCase;
+use Symfony\Component\Mailer\Transport\RoundRobinTransport;
+
+class MailRoundRobinTransportTest extends TestCase
+{
+    public function testGetRoundRobinTransportWithConfiguredTransports()
+    {
+        $this->app['config']->set('mail.default', 'roundrobin');
+
+        $this->app['config']->set('mail.mailers', [
+            'roundrobin' => [
+                'transport' => 'roundrobin',
+                'mailers' => [
+                    'sendmail',
+                    'array',
+                ],
+            ],
+
+            'sendmail' => [
+                'transport' => 'sendmail',
+                'path' => '/usr/sbin/sendmail -bs',
+            ],
+
+            'array' => [
+                'transport' => 'array',
+            ],
+        ]);
+
+        $transport = app('mailer')->getSymfonyTransport();
+        $this->assertInstanceOf(RoundRobinTransport::class, $transport);
+    }
+
+    public function testGetRoundRobinTransportWithLaravel6StyleMailConfiguration()
+    {
+        $this->app['config']->set('mail.driver', 'roundrobin');
+
+        $this->app['config']->set('mail.mailers', [
+            'sendmail',
+            'array',
+        ]);
+
+        $this->app['config']->set('mail.sendmail', '/usr/sbin/sendmail -bs');
+
+        $transport = app('mailer')->getSymfonyTransport();
+        $this->assertInstanceOf(RoundRobinTransport::class, $transport);
+    }
+}