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-rw-r--r--lib/stdlib/test/io_SUITE.erl22
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl
index 13f2cbd27b..91fe1133f6 100644
--- a/lib/stdlib/test/io_SUITE.erl
+++ b/lib/stdlib/test/io_SUITE.erl
@@ -31,7 +31,7 @@
otp_10836/1, io_lib_width_too_small/1,
io_with_huge_message_queue/1, format_string/1,
maps/1, coverage/1, otp_14178_unicode_atoms/1, otp_14175/1,
- otp_14285/1, limit_term/1, otp_14983/1]).
+ otp_14285/1, limit_term/1, otp_14983/1, otp_15103/1]).
-export([pretty/2, trf/3]).
@@ -63,7 +63,7 @@ all() ->
io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836,
io_lib_width_too_small, io_with_huge_message_queue,
format_string, maps, coverage, otp_14178_unicode_atoms, otp_14175,
- otp_14285, limit_term, otp_14983].
+ otp_14285, limit_term, otp_14983, otp_15103].
%% Error cases for output.
error_1(Config) when is_list(Config) ->
@@ -2615,3 +2615,21 @@ trf(Format, Args, T) ->
trf(Format, Args, T, Opts) ->
lists:flatten(io_lib:format(Format, Args, [{chars_limit, T}|Opts])).
+
+otp_15103(_Config) ->
+ T = lists:duplicate(5, {a,b,c}),
+
+ S1 = io_lib:format("~0p", [T]),
+ "[{a,b,c},{a,b,c},{a,b,c},{a,b,c},{a,b,c}]" = lists:flatten(S1),
+ S2 = io_lib:format("~-0p", [T]),
+ "[{a,b,c},{a,b,c},{a,b,c},{a,b,c},{a,b,c}]" = lists:flatten(S2),
+ S3 = io_lib:format("~1p", [T]),
+ "[{a,\n b,\n c},\n {a,\n b,\n c},\n {a,\n b,\n c},\n {a,\n b,\n"
+ " c},\n {a,\n b,\n c}]" = lists:flatten(S3),
+
+ S4 = io_lib:format("~0P", [T, 5]),
+ "[{a,b,c},{a,b,...},{a,...},{...}|...]" = lists:flatten(S4),
+ S5 = io_lib:format("~1P", [T, 5]),
+ "[{a,\n b,\n c},\n {a,\n b,...},\n {a,...},\n {...}|...]" =
+ lists:flatten(S5),
+ ok.