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Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_doctest.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py index dec9110..d49e6cf 100644 --- a/Lib/test/test_doctest.py +++ b/Lib/test/test_doctest.py @@ -780,6 +780,29 @@ output to match any substring in the actual output: >>> doctest.DocTestRunner(verbose=False, optionflags=flags).run(test) (0, 1) +... should also match nothing gracefully: +XXX This can be provoked into requiring exponential time by adding more +XXX ellipses; the implementation should change. It's much easier to +XXX provoke exponential time with expected output that doesn't match, +XXX BTW (then multiple regexp .* thingies each try all possiblities, +XXX multiplicatively, without hope of success). That's the real danger, +XXX that a failing test will appear to be hung. + + >>> for i in range(100): + ... print i**2 #doctest: +ELLIPSIS + 0 + ... + 1 + ... + 36 + ... + ... + 49 + 64 + ...... + 9801 + ... + The UNIFIED_DIFF flag causes failures that involve multi-line expected and actual outputs to be displayed using a unified diff: |