In 8.9.beta0:
less than 1 : 9
less than 2 : 12
less than 4 : 17
less than 8 : 20
less than 16 : 22
In the 15 worst files, 64 broken doctests:
['src/sage/tests/books/computational-mathematics-with-sagemath/graphtheory_doctest.py # 1 doctest failed',
'src/sage/tests/books/computational-mathematics-with-sagemath/sol/graphtheory_doctest.py # 1 doctest failed',
'src/sage/combinat/finite_state_machine.py # 2 doctests failed',
'src/sage/doctest/test.py # 2 doctests failed',
'src/sage/numerical/backends/generic_backend.pyx # 2 doctests failed',
'src/sage/combinat/perfect_matching.py # 3 doctests failed',
'src/sage/combinat/root_system/root_lattice_realizations.py # 3 doctests failed',
'src/sage/combinat/root_system/weyl_characters.py # 3 doctests failed',
'src/sage/misc/functional.py # 4 doctests failed',
'src/sage/repl/attach.py # 4 doctests failed',
'src/sage/symbolic/expression.pyx # 6 doctests failed',
'src/sage/combinat/root_system/weyl_group.py # 7 doctests failed',
'src/sage/graphs/generic_graph.py # 8 doctests failed',
'src/sage/misc/nested_class.pyx # 9 doctests failed',
'src/sage/rings/integer.pyx # 9 doctests failed']
There is an unexpected failure in 8.9.beta0 in the schemes folder :
sage -t --long src/sage/schemes/hyperelliptic_curves/hyperelliptic_finite_field.py # 1 doctest failed on line 780