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| author | Jim Meyering <meyering@redhat.com> | 2012-03-09 12:25:17 +0100 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2012-03-09 12:31:06 +0100 |
| commit | d0bb7f9c1505f08362dbf107d47d8d6795c93fbf (patch) | |
| tree | 5457ca1e21f47c5f7094d0ce4917f6479885f9cc | |
| parent | 4b2224681fbc297bf585630b679d8540a02b78d3 (diff) | |
| download | grep-d0bb7f9c1505f08362dbf107d47d8d6795c93fbf.tar.gz | |
tests: exercise two recently-fixed bugs
* tests/repetition-overflow: New test for bugs fixed by commit
v2.10-82-gcbbc1a4.
* tests/Makefile.am (TESTS): Add it.
| -rw-r--r-- | tests/Makefile.am | 1 | ||||
| -rwxr-xr-x | tests/repetition-overflow | 19 |
2 files changed, 20 insertions, 0 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am index 0a22ba6c..c2cd2f7d 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -76,6 +76,7 @@ TESTS = \ pcre-z \ prefix-of-multibyte \ r-dot \ + repetition-overflow \ reversed-range-endpoints \ sjis-mb \ spencer1 \ diff --git a/tests/repetition-overflow b/tests/repetition-overflow new file mode 100755 index 00000000..c92de237 --- /dev/null +++ b/tests/repetition-overflow @@ -0,0 +1,19 @@ +#!/bin/sh +# These would fail (i.e., match erroneously) prior to grep-2.11. +. "${srcdir=.}/init.sh"; path_prepend_ ../src + +xp1=4294967297 # 2^32+1 +xp2=4294967298 # 2^32+2 + +fail=0 + +# Before grep-2.11, when DFA-matching, a repetition count exceeding the +# range of "unsigned int" would silently wrap around. Hence, 2^32+1 +# would be treated just like "1", and both of these would mistakenly match. + +echo abc | grep -E "b{$xp1}" > out 2>&1; test $? = 1 || fail=1 +compare out /dev/null || fail=1 +echo abbc | grep -E "b{1,$xp2}" > out 2>&1; test $? = 1 || fail=1 +compare out /dev/null || fail=1 + +Exit $fail |