ICL: Null driver tests added.

Author: dmitry-ivanov

tests/Loggable/Notifications/EmailChannel/EmailChannelTest.php

@@ -19,6 +19,16 @@ public function it_validates_and_filters_notification_recipients()
         $this->assertNotInstanceOf(SwiftMailerHandler::class, $handler);
     }
 
+    /** @test */
+    public function it_is_disabled_on_null_driver()
+    {
+        config(['mail.driver' => 'null']);
+
+        $handler = $this->runConsoleCommand(EmailNotificationsCommand::class)->createEmailChannelHandler();
+
+        $this->assertFalse($handler);
+    }
+
     /** @test */
     public function it_uses_configured_monolog_swift_mailer_handler_on_mail_driver()
     {