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-rw-r--r--tests/grep.test3
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/grep.test b/tests/grep.test
index 21cd8bbb..05288983 100644
--- a/tests/grep.test
+++ b/tests/grep.test
@@ -151,3 +151,6 @@ testing "explicit BRE |" "grep -e 'uno|dos'" "uno|dos\n" \
"" "uno\ndos\nuno|dos\n"
testing "explicit ERE |" "grep -E 'uno|dos'" "uno\ndos\nuno|dos\n" \
"" "uno\ndos\nuno|dos\n"
+
+testing "" "grep -o -e iss -e ipp" "iss\niss\nipp\n" "" "mississippi"
+testing "" "grep -o -e gum -e rgu" "rgu\n" "" "argument"