1 files changed, 6 insertions, 0 deletions
diff --git a/tests/sed.test b/tests/sed.test
index 6b27fff8..e5ec11bd 100755
--- a/tests/sed.test
+++ b/tests/sed.test
@@ -176,4 +176,10 @@ testing '\n with empty capture' \
 testing '\n too high' \
     'sed -E "s/(.*)/\2/p" 2>/dev/null || echo OK' "OK\n" "" "foo"
 
+# Performance test
+X=x; Y=20; while [ $Y -gt 0 ]; do X=$X$X; Y=$(($Y-1)); done
+testing 'megabyte s/x/y/g (5 sec timeout)' "timeout 5 sed 's/x/y/g' | sha1sum" \
+  '138c1fa7c3f64186203b0192fb4abdb33cb4e98a  -\n' '' "$X\n"
+unset X Y
+
 # -i with $ last line test