diff options
Diffstat (limited to 'lib/stdlib/test/re_SUITE.erl')
| -rw-r--r-- | lib/stdlib/test/re_SUITE.erl | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/stdlib/test/re_SUITE.erl b/lib/stdlib/test/re_SUITE.erl index 71f86e32e5..c9ef9da990 100644 --- a/lib/stdlib/test/re_SUITE.erl +++ b/lib/stdlib/test/re_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2008-2017. All Rights Reserved. +%% Copyright Ericsson AB 2008-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -894,10 +894,13 @@ match_limit(Config) when is_list(Config) -> %% Test that we get sub-binaries if subject is a binary and we capture %% binaries. sub_binaries(Config) when is_list(Config) -> - Bin = list_to_binary(lists:seq(1,255)), - {match,[B,C]}=re:run(Bin,"(a)",[{capture,all,binary}]), - 255 = binary:referenced_byte_size(B), - 255 = binary:referenced_byte_size(C), - {match,[D]}=re:run(Bin,"(a)",[{capture,[1],binary}]), - 255 = binary:referenced_byte_size(D), + %% The GC can auto-convert tiny sub-binaries to heap binaries, so we + %% extract large sequences to make the test more stable. + Bin = << <<I>> || I <- lists:seq(1, 4096) >>, + {match,[B,C]}=re:run(Bin,"a(.+)$",[{capture,all,binary}]), + true = byte_size(B) =/= byte_size(C), + 4096 = binary:referenced_byte_size(B), + 4096 = binary:referenced_byte_size(C), + {match,[D]}=re:run(Bin,"a(.+)$",[{capture,[1],binary}]), + 4096 = binary:referenced_byte_size(D), ok. |