From bf183c80906b4434419949bde2579da62c851876 Mon Sep 17 00:00:00 2001
From: Marco Hermo <marco@silverstripe.com>
Date: Fri, 10 Dec 2021 13:11:48 +1300
Subject: [PATCH] TestMailer - Add Headers attribute in order for tests to
 asserts its contents

Update TestMailer.php

Good point, adding all headers as suggested.
---
 src/Dev/TestMailer.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Dev/TestMailer.php b/src/Dev/TestMailer.php
index 3d37b0ded..667454ecd 100644
--- a/src/Dev/TestMailer.php
+++ b/src/Dev/TestMailer.php
@@ -48,7 +48,8 @@ class TestMailer implements Mailer
             'From' => implode(';', array_keys($email->getFrom() ?: [])),
             'Subject' => $email->getSubject(),
             'Content' => $email->getBody(),
-            'AttachedFiles' => $attachedFiles
+            'AttachedFiles' => $attachedFiles,
+            'Headers' => $email->getSwiftMessage()->getHeaders(),
         ];
         if ($plainContent) {
             $serialised['PlainContent'] = $plainContent;