diff options
Diffstat (limited to 'lib/stdlib/test')
| -rw-r--r-- | lib/stdlib/test/unicode_util_SUITE.erl | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/stdlib/test/unicode_util_SUITE.erl b/lib/stdlib/test/unicode_util_SUITE.erl index 044b4e5834..6f55f204f4 100644 --- a/lib/stdlib/test/unicode_util_SUITE.erl +++ b/lib/stdlib/test/unicode_util_SUITE.erl @@ -428,7 +428,15 @@ mode(deep_l, Bin) -> [unicode:characters_to_list(Bin)]. fetch(Str, F) -> case F(Str) of [] -> []; - [CP|R] -> [CP|fetch(R,F)] + [CP|R] -> + %% If input is a binary R should be binary + if is_binary(Str) == false -> ok; + is_binary(R); R =:= [] -> ok; + true -> + io:format("Char: ~tc Tail:~tP~n", [CP,R,10]), + exit({bug, F}) + end, + [CP|fetch(R,F)] end. %% *Test.txt file helpers |