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annotate_ifdef_directives: test edge-case of 80-char line

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An 80-character line (79 characters if you don't count the newline)
should not be truncated, and should not have a "..." insterted.
This commit is contained in:
Nick Mathewson
2019-09-26 20:30:41 -04:00
parent 21c9f7c85e
commit fc1134e3e5
1 changed files with 16 additions and 0 deletions
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scripts/maint/annotate_ifdef_directives.py
+16
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@@ -156,6 +156,22 @@ def commented_line(fmt, argument, maxwidth=LINE_WIDTH):
'#endif /* long long long long long long '
>>> long_line[40:]
'long long long long long long lon... */\n'
If a line works out to being 80 characters naturally, it isn't truncated,
and no ellipsis is added.
>>> medium_argument = "a"*66
>>> medium_line = commented_line("#endif /* %s */\n", medium_argument)
>>> len(medium_line)
80
>>> "..." in medium_line
False
>>> medium_line[:40]
'#endif /* aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
>>> medium_line[40:]
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa */\n'
"""
assert fmt.endswith("\n")
result = fmt % argument