Index: head/contrib/netbsd-tests/usr.bin/grep/t_grep.sh
===================================================================
--- head/contrib/netbsd-tests/usr.bin/grep/t_grep.sh
+++ head/contrib/netbsd-tests/usr.bin/grep/t_grep.sh
@@ -379,6 +379,66 @@
 
 	atf_check -o inline:"Eggs\nCheese\n" grep -v -e "^$" test1
 }
+
+atf_test_case fgrep_sanity
+fgrep_sanity_head()
+{
+	atf_set "descr" "Check for fgrep sanity, literal expressions only"
+}
+fgrep_sanity_body()
+{
+	printf "Foo" > test1
+
+	atf_check -o inline:"Foo\n" fgrep -e "Foo" test1
+
+	atf_check -s exit:1 -o empty fgrep -e "Fo." test1
+}
+
+atf_test_case egrep_sanity
+egrep_sanity_head()
+{
+	atf_set "descr" "Check for egrep sanity, EREs only"
+}
+egrep_sanity_body()
+{
+	printf "Foobar(ed)" > test1
+	printf "M{1}" > test2
+
+	atf_check -o inline:"Foo\n" egrep -o -e "F.." test1
+
+	atf_check -o inline:"Foobar\n" egrep -o -e "F[a-z]*" test1
+
+	atf_check -o inline:"Fo\n" egrep -o -e "F(o|p)" test1
+
+	atf_check -o inline:"(ed)\n" egrep -o -e "\(ed\)" test1
+
+	atf_check -o inline:"M\n" egrep -o -e "M{1}" test2
+
+	atf_check -o inline:"M{1}\n" egrep -o -e "M\{1\}" test2
+}
+
+atf_test_case grep_sanity
+grep_sanity_head()
+{
+	atf_set "descr" "Check for basic grep sanity, BREs only"
+}
+grep_sanity_body()
+{
+	printf "Foobar(ed)" > test1
+	printf "M{1}" > test2
+
+	atf_check -o inline:"Foo\n" grep -o -e "F.." test1
+
+	atf_check -o inline:"Foobar\n" grep -o -e "F[a-z]*" test1
+
+	atf_check -o inline:"Fo\n" grep -o -e "F\(o\)" test1
+
+	atf_check -o inline:"(ed)\n" grep -o -e "(ed)" test1
+
+	atf_check -o inline:"M{1}\n" grep -o -e "M{1}" test2
+
+	atf_check -o inline:"M\n" grep -o -e "M\{1\}" test2
+}
 # End FreeBSD
 
 atf_init_test_cases()
@@ -407,5 +467,8 @@
 	atf_add_test_case escmap
 	atf_add_test_case egrep_empty_invalid
 	atf_add_test_case zerolen
+	atf_add_test_case fgrep_sanity
+	atf_add_test_case egrep_sanity
+	atf_add_test_case grep_sanity
 # End FreeBSD
 }