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-rw-r--r--lib/stdlib/test/string_SUITE.erl4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/stdlib/test/string_SUITE.erl b/lib/stdlib/test/string_SUITE.erl
index f43bfb4482..17714b8d4d 100644
--- a/lib/stdlib/test/string_SUITE.erl
+++ b/lib/stdlib/test/string_SUITE.erl
@@ -485,6 +485,10 @@ to_float(_) ->
prefix(_) ->
?TEST("", ["a"], nomatch),
?TEST("a", [""], "a"),
+ ?TEST("a", [[[]]], "a"),
+ ?TEST("a", [<<>>], "a"),
+ ?TEST("a", [[<<>>]], "a"),
+ ?TEST("a", [[[<<>>]]], "a"),
?TEST("b", ["a"], nomatch),
?TEST("a", ["a"], ""),
?TEST("å", ["a"], nomatch),