1 files changed, 32 insertions, 0 deletions
diff --git a/src/grep/tests/dfa-coverage b/src/grep/tests/dfa-coverage
new file mode 100755
index 0000000..0a67fbb
--- /dev/null
+++ b/src/grep/tests/dfa-coverage
@@ -0,0 +1,32 @@
+#!/bin/sh
+# Exercise the final reachable code in dfa.c's match_mb_charset.
+
+# Copyright (C) 2012-2021 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ ../src
+
+require_en_utf8_locale_
+require_compiled_in_MB_support
+
+fail=0
+
+echo a > in || framework_failure_
+
+LC_ALL=en_US.UTF-8 grep -E '[^_]|$' in > out || fail=1
+
+compare out in || fail=1
+
+Exit $fail