Feature or enhancement

A side effect of migration to the unittest test runner (a long process finished in#89392) was the change in the output in verbose mode. In older version, whentest.support.run_doctest() was used to run doctests, it outputted all doctest details when regrtests are run with-v. Now doctests are wrapped indoctest.DocTestClass and only test name is shown when regrtests are run with-v.

The former behavior was too verbose, the current behavior is too terse. I want the following behavior:

• When regrtests are run without-v, do not output anything.
• When regrtests are run with single-v, output only doctest name, as for other test cases.
• When regrtests are run with-vv, output detailed doctest output.
• Every example count as a subtest.
• When some example fails, count it as failing subtest, and output detailed reports for every failed example. It should not include details of successful examples (except when run with-vv).
• It would be nice to integrate it also with the unittest CLI, but taking into account that it needs two-vs to show test case names and will need three-vs to show doctest details.

It means that we should found a way to pass verbosity level to doctests and run every example withinTestCase.subTest().

Linked PRs

• gh-108885: Imporove tests for doctest #134832
• [3.14] gh-108885: Imporove tests for doctest (GH-134832) #134855
• [3.13] gh-108885: Imporove tests for doctest (GH-134832) #134856
• gh-108885: Use subtests for doctest examples run by unittest #134890