1 files changed, 33 insertions, 0 deletions
diff --git a/gnu/usr.bin/grep/tests/empty.sh b/gnu/usr.bin/grep/tests/empty.sh
new file mode 100755
index 000000000000..d4225fecd02d
--- /dev/null
+++ b/gnu/usr.bin/grep/tests/empty.sh
@@ -0,0 +1,33 @@
+#!/bin/sh
+# test that the empty file means no pattern
+# and an empty pattern means match all.
+
+: ${srcdir=.}
+
+failures=0
+
+for options in '-E' '-E -w' '-F -x' '-G -w -x'; do
+
+	# should return 0 found a match
+	echo "" | ${GREP} $options -e '' > /dev/null 2>&1
+	if test $? -ne 0 ; then
+		echo "Status: Wrong status code, test \#1 failed ($options)"
+		failures=1
+	fi
+
+	# should return 1 found no match
+	echo "abcd" | ${GREP} $options -f /dev/null  > /dev/null 2>&1
+	if test $? -ne 1 ; then
+		echo "Status: Wrong status code, test \#2 failed ($options)"
+		failures=1
+	fi
+
+	# should return 0 found a match
+	echo "abcd" | ${GREP} $options -f /dev/null -e "abcd" > /dev/null 2>&1
+	if test $? -ne 0 ; then
+		echo "Status: Wrong status code, test \#3 failed ($options)"
+		failures=1
+	fi
+done
+
+exit $failures