Changeset 46118 for trunk/tests/phpunit/tests/mail.php

Timestamp:

09/14/2019 09:34:51 PM (5 years ago)

Author:

SergeyBiryukov

Message:

Mail: Add a unit test to make sure wp_mail() does not duplicate the MIME-Version header added automatically by PHPMailer.

See #43542.

File:

• trunk/tests/phpunit/tests/mail.php (modified) (1 diff)

trunk/tests/phpunit/tests/mail.php

@@ -274 +274 @@
     }
 
+    /**
+     * @ticket 43542
+     */
+    public function test_wp_mail_does_not_duplicate_mime_version_header() {
+        $to       = 'user@example.com';
+        $subject  = 'Test email with a MIME-Version header';
+        $message  = 'The MIME-Version header should not be duplicated.';
+        $headers  = 'MIME-Version: 1.0';
+        $expected = 'MIME-Version: 1.0';
+
+        wp_mail( $to, $subject, $message, $headers );
+
+        $mailer = tests_retrieve_phpmailer_instance();
+        $this->assertEquals( 1, substr_count( $mailer->get_sent()->header, $expected ) );
+    }
+
     function wp_mail_quoted_printable( $mailer ) {
         $mailer->Encoding = 'quoted-printable';