add token MailboxHandler test

tests/MailboxHandlerTest.php

@@ -0,0 +1,24 @@
+<?php
+
+class MailboxHandlerTest extends \PHPUnit\Framework\TestCase {
+    public function testBasic() {
+        $x = new MailboxHandler();
+
+        $list = $x->getList("");
+
+        $this->assertTrue($list);
+
+
+        $results = $x->result();
+
+        $this->assertEmpty($results);
+
+        $this->assertFalse($x->checkPasswordRecoveryCode('test', 'fake'));
+
+        $token = $x->getPasswordRecoveryCode('test.peraon.does.not.exist@example.com');
+
+        $this->assertFalse($token);
+    }
+}
+
+/* vim: set expandtab softtabstop=4 tabstop=4 shiftwidth=4: */