diff options
Diffstat (limited to 'erts/test/erlc_SUITE.erl')
| -rw-r--r-- | erts/test/erlc_SUITE.erl | 64 |
1 files changed, 58 insertions, 6 deletions
diff --git a/erts/test/erlc_SUITE.erl b/erts/test/erlc_SUITE.erl index 437f020f99..a9e28672e3 100644 --- a/erts/test/erlc_SUITE.erl +++ b/erts/test/erlc_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2010. All Rights Reserved. +%% Copyright Ericsson AB 1997-2011. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -20,14 +20,33 @@ %% Tests the erlc command by compiling various types of files. --export([all/1, compile_erl/1, compile_yecc/1, compile_script/1, - compile_mib/1, good_citizen/1, deep_cwd/1]). +-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, + init_per_group/2,end_per_group/2, compile_erl/1, + compile_yecc/1, compile_script/1, + compile_mib/1, good_citizen/1, deep_cwd/1, arg_overflow/1]). -include_lib("test_server/include/test_server.hrl"). -all(suite) -> +suite() -> [{ct_hooks,[ts_install_cth]}]. + +all() -> [compile_erl, compile_yecc, compile_script, compile_mib, - good_citizen, deep_cwd]. + good_citizen, deep_cwd, arg_overflow]. + +groups() -> + []. + +init_per_suite(Config) -> + Config. + +end_per_suite(_Config) -> + ok. + +init_per_group(_GroupName, Config) -> + Config. + +end_per_group(_GroupName, Config) -> + Config. %% Copy from erlc_SUITE_data/include/erl_test.hrl. @@ -60,7 +79,7 @@ compile_erl(Config) when is_list(Config) -> ?line run(Config, Cmd, FileName, "-Werror", ["compile: warnings being treated as errors\$", - "Warning: function foo/0 is unused\$", + "function foo/0 is unused\$", "_ERROR_"]), %% Check a bad file. @@ -189,6 +208,39 @@ deep_cwd_1(PrivDir) -> ?line true = filelib:is_file("test.beam"), ok. +%% Test that a large number of command line switches does not +%% overflow the argument buffer +arg_overflow(Config) when is_list(Config) -> + ?line {SrcDir, _OutDir, Cmd} = get_cmd(Config), + ?line FileName = filename:join(SrcDir, "erl_test_ok.erl"), + %% Each -D option will be expanded to three arguments when + %% invoking 'erl'. + ?line NumDOptions = num_d_options(), + ?line Args = lists:flatten([ ["-D", integer_to_list(N, 36), "=1 "] || + N <- lists:seq(1, NumDOptions) ]), + ?line run(Config, Cmd, FileName, Args, + ["Warning: function foo/0 is unused\$", + "_OK_"]), + ok. + +num_d_options() -> + case {os:type(),os:version()} of + {{win32,_},_} -> + %% The maximum size of a command line in the command + %% shell on Windows is 8191 characters. + %% Each -D option is expanded to "@dv NN 1", i.e. + %% 8 characters. (Numbers up to 1295 can be expressed + %% as two 36-base digits.) + 1000; + {{unix,linux},Version} when Version < {2,6,23} -> + %% On some older 64-bit versions of Linux, the maximum number + %% of arguments is 16383. + %% See: http://www.in-ulm.de/~mascheck/various/argmax/ + 5440; + {_,_} -> + 12000 + end. + erlc() -> case os:find_executable("erlc") of false -> |