Conifgure email settings through user interface

tests/units/Base.php

@@ -54,7 +54,7 @@ abstract class Base extends PHPUnit_Framework_TestCase
         $this->container['httpClient'] = $this
             ->getMockBuilder('\Kanboard\Core\Http\Client')
             ->setConstructorArgs(array($this->container))
-            ->setMethods(array('get', 'getJson', 'postJson', 'postForm'))
+            ->setMethods(array('get', 'getJson', 'postJson', 'postJsonAsync', 'postForm', 'postFormAsync'))
             ->getMock();
 
         $this->container['emailClient'] = $this

tests/units/Helper/MailHelperTest.php

@@ -32,4 +32,15 @@ class MailHelperTest extends Base
 
         $this->assertEquals('me@here', $helper->getMailSenderAddress());
     }
+
+    public function testGetTransport()
+    {
+        $helper = new MailHelper($this->container);
+        $this->assertEquals(MAIL_TRANSPORT, $helper->getMailTransport());
+
+        $this->container['configModel']->save(array('mail_transport' => 'smtp'));
+        $this->container['memoryCache']->flush();
+
+        $this->assertEquals('smtp', $helper->getMailTransport());
+    }
 }