xml2: add test for coverage

When Who What
2023-01-31 01:01:28 vigneshwaran C (vignesh.postgres) Closed in commitfest 2023-01 with status: Returned with feedback
2022-12-11 06:13:17 Ian Barwick (barwick) Closed in commitfest 2022-11 with status: Moved to next CF
2022-12-11 06:13:13 Ian Barwick (barwick) New status: Waiting on Author
2022-10-12 07:07:00 Michael Paquier (michael-kun) Closed in commitfest 2022-09 with status: Moved to next CF
2022-09-02 22:40:38 Justin Pryzby (justinpryzby) Changed topic to Testing
2022-08-23 02:01:46 DongWook Lee (dongwooklee) Changed authors to DongWook Lee (dongwooklee)
2022-08-23 01:40:19 DongWook Lee (dongwooklee) Attached mail thread CAAcByaKUg2EkDGwh_OPcVh1BPnKb3=+fN0yjSx=MaUxzs+zVGw@mail.gmail.com
2022-08-23 01:40:19 DongWook Lee (dongwooklee) Created patch record