Add test for minidom

[benjeffery]

Test to ensure #3144 is not repeated.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.72%. Comparing base (83f8af8) to head (70cd317).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3146   +/-   ##
=======================================
  Coverage   89.72%   89.72%           
=======================================
  Files          29       29           
  Lines       32225    32225           
  Branches     5890     5890           
=======================================
  Hits        28913    28913           
  Misses       1882     1882           
  Partials     1430     1430           

Flag	Coverage Δ
c-tests	86.66% <ø> (ø)
lwt-tests	80.38% <ø> (ø)
python-c-tests	88.24% <ø> (ø)
python-tests	98.83% <ø> (ø)

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[jeromekelleher]

This is such a weird once off that I'm not sure it's worth stressing about? Great if we can make this test work easily, but let's not worry about it if not.

[benjeffery]

Theres a few pushes here as I wanted to check the test failed without the new fix, should be ready to go now, only adds 2s to CI time.

[mergify]

This pull request has been removed from the queue for the following reason: pull request dequeued.

Pull request #3146 has been dequeued. The pull request rule doesn't match anymore.

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.
If you do update this pull request, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.