match: test for overflow error in pattern
If a single pattern is too large to handle, we raise an exception. This case is
now doctested.
--- a/mercurial/match.py Thu Nov 22 17:20:32 2018 +0100
+++ b/mercurial/match.py Thu Nov 22 17:16:05 2018 +0100
@@ -1188,7 +1188,16 @@
def _buildregexmatch(kindpats, globsuffix):
"""Build a match function from a list of kinds and kindpats,
- return regexp string and a matcher function."""
+ return regexp string and a matcher function.
+
+ Test too large input
+ >>> _buildregexmatch([
+ ... ('relglob', '?' * MAX_RE_SIZE, '')
+ ... ], '$')
+ Traceback (most recent call last):
+ ...
+ OverflowError
+ """
try:
regex = '(?:%s)' % '|'.join([_regex(k, p, globsuffix)
for (k, p, s) in kindpats])