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bpo-30591: Added test for textwrap backtracking. (#1988)

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Jonathan Eunice 2017-06-07 16:49:13 -04:00 • committed by Serhiy Storchaka
parent 6f46683a62
commit 5edf827c80
1 changed files with 11 additions and 0 deletions
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11
Lib/test/test_textwrap.py
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@ -559,6 +559,17 @@ class MaxLinesTestCase(BaseTestCase):
placeholder=' [truncated]...') placeholder=' [truncated]...')
self.check_wrap(self.text, 80, [self.text], placeholder='.' * 1000) self.check_wrap(self.text, 80, [self.text], placeholder='.' * 1000)
def test_placeholder_backtrack(self):
# Test special case when max_lines insufficient, but what
# would be last wrapped line so long the placeholder cannot
# be added there without violence. So, textwrap backtracks,
# adding placeholder to the penultimate line.
text = 'Good grief Python features are advancing quickly!'
self.check_wrap(text, 12,
['Good grief', 'Python*****'],
max_lines=3,
placeholder='*****')
class LongWordTestCase (BaseTestCase): class LongWordTestCase (BaseTestCase):
def setUp(self): def setUp(self):