diff options
Diffstat (limited to 'lib/common_test/test/ct_test_support.erl')
| -rw-r--r-- | lib/common_test/test/ct_test_support.erl | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/lib/common_test/test/ct_test_support.erl b/lib/common_test/test/ct_test_support.erl index 772274ce7e..2e2b45d59f 100644 --- a/lib/common_test/test/ct_test_support.erl +++ b/lib/common_test/test/ct_test_support.erl @@ -40,6 +40,8 @@ -export([ct_test_halt/1, ct_rpc/2]). +-export([random_error/1]). + -include_lib("kernel/include/file.hrl"). %%%----------------------------------------------------------------- @@ -110,7 +112,6 @@ start_slave(NodeName, Config, Level) -> _ -> ok end, - TraceFile = filename:join(DataDir, "ct.trace"), case file:read_file_info(TraceFile) of {ok,_} -> @@ -395,6 +396,55 @@ ct_rpc({M,F,A}, Config) -> %%%----------------------------------------------------------------- +%%% random_error/1 +random_error(Config) when is_list(Config) -> + random:seed(now()), + Gen = fun(0,_) -> ok; (N,Fun) -> Fun(N-1, Fun) end, + Gen(random:uniform(100), Gen), + + ErrorTypes = ['BADMATCH','BADARG','CASE_CLAUSE','FUNCTION_CLAUSE', + 'EXIT','THROW','UNDEF'], + Type = lists:nth(random:uniform(length(ErrorTypes)), ErrorTypes), + Where = case random:uniform(2) of + 1 -> + io:format("ct_test_support *returning* error of type ~w", + [Type]), + tc; + 2 -> + io:format("ct_test_support *generating* error of type ~w", + [Type]), + lib + end, + ErrorFun = + fun() -> + case Type of + 'BADMATCH' -> + ok = proplists:get_value(undefined, Config); + 'BADARG' -> + size(proplists:get_value(priv_dir, Config)); + 'FUNCTION_CLAUSE' -> + random_error(x); + 'EXIT' -> + spawn_link(fun() -> + undef_proc ! hello, + ok + end); + 'THROW' -> + PrivDir = proplists:get_value(priv_dir, Config), + if is_list(PrivDir) -> throw(generated_throw) end; + 'UNDEF' -> + apply(?MODULE, random_error, []) + end + end, + %% either call the fun here or return it to the caller (to be + %% executed in a test case instead) + case Where of + tc -> ErrorFun; + lib -> ErrorFun() + end. + + +%%%----------------------------------------------------------------- %%% EVENT HANDLING handle_event(EH, Event) -> |