Add basic test for attachment_reminder plugin

plugins/attachment_reminder/tests/AttachmentReminder.php

@@ -0,0 +1,23 @@
+<?php
+
+class AttachmentReminder_Plugin extends PHPUnit_Framework_TestCase
+{
+
+    function setUp()
+    {
+        include_once __DIR__ . '/../attachment_reminder.php';
+    }
+
+    /**
+     * Plugin object construction test
+     */
+    function test_constructor()
+    {
+        $rcube  = rcube::get_instance();
+        $plugin = new attachment_reminder($rcube->plugins);
+
+        $this->assertInstanceOf('attachment_reminder', $plugin);
+        $this->assertInstanceOf('rcube_plugin', $plugin);
+    }
+}
+

tests/phpunit.xml

@@ -57,6 +57,7 @@
             <file>./../plugins/acl/tests/Acl.php</file>
             <file>./../plugins/additional_message_headers/tests/AdditionalMessageHeaders.php</file>
             <file>./../plugins/archive/tests/Archive.php</file>
+            <file>./../plugins/attachment_reminder/tests/AttachmentReminder.php</file>
             <file>./../plugins/autologon/tests/Autologon.php</file>
             <file>./../plugins/database_attachments/tests/DatabaseAttachments.php</file>
             <file>./../plugins/debug_logger/tests/DebugLogger.php</file>