diff options
Diffstat (limited to 'erts/emulator/test/code_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/code_SUITE.erl | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl index 2f9b01cc92..25ce94096f 100644 --- a/erts/emulator/test/code_SUITE.erl +++ b/erts/emulator/test/code_SUITE.erl @@ -20,7 +20,7 @@ -module(code_SUITE). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, - new_binary_types/1, + versions/1,new_binary_types/1, t_check_process_code/1,t_check_old_code/1, t_check_process_code_ets/1, external_fun/1,get_chunk/1,module_md5/1,make_stub/1, @@ -33,7 +33,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [new_binary_types, t_check_process_code, + [versions, new_binary_types, t_check_process_code, t_check_process_code_ets, t_check_old_code, external_fun, get_chunk, module_md5, make_stub, make_stub_many_funs, constant_pools, constant_refc_binaries, false_dependency, @@ -56,6 +56,60 @@ init_per_group(_GroupName, Config) -> end_per_group(_GroupName, Config) -> Config. +%% Make sure that only two versions of a module can be loaded. +versions(Config) when is_list(Config) -> + V1 = compile_version(1, Config), + V2 = compile_version(2, Config), + V3 = compile_version(3, Config), + + {ok,P1,1} = load_version(V1, 1), + {ok,P2,2} = load_version(V2, 2), + {error,not_purged} = load_version(V2, 2), + {error,not_purged} = load_version(V3, 3), + + 1 = check_version(P1), + 2 = check_version(P2), + 2 = versions:version(), + + %% Kill processes, unload code. + P1 ! P2 ! done, + _ = monitor(process, P1), + _ = monitor(process, P2), + receive + {'DOWN',_,process,P1,normal} -> ok + end, + receive + {'DOWN',_,process,P2,normal} -> ok + end, + true = erlang:purge_module(versions), + true = erlang:delete_module(versions), + true = erlang:purge_module(versions), + ok. + +compile_version(Version, Config) -> + Data = ?config(data_dir, Config), + File = filename:join(Data, "versions"), + {ok,versions,Bin} = compile:file(File, [{d,'VERSION',Version}, + binary,report]), + Bin. + +load_version(Code, Ver) -> + case erlang:load_module(versions, Code) of + {module,versions} -> + Pid = spawn_link(versions, loop, []), + Ver = versions:version(), + Ver = check_version(Pid), + {ok,Pid,Ver}; + Error -> + Error + end. + +check_version(Pid) -> + Pid ! {self(),version}, + receive + {Pid,version,Version} -> + Version + end. new_binary_types(Config) when is_list(Config) -> ?line Data = ?config(data_dir, Config), |