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-rw-r--r--lib/stdlib/test/gen_statem_SUITE.erl105
1 files changed, 96 insertions, 9 deletions
diff --git a/lib/stdlib/test/gen_statem_SUITE.erl b/lib/stdlib/test/gen_statem_SUITE.erl
index 119546be98..24f0864b3c 100644
--- a/lib/stdlib/test/gen_statem_SUITE.erl
+++ b/lib/stdlib/test/gen_statem_SUITE.erl
@@ -38,7 +38,7 @@ all() ->
{group, abnormal},
{group, abnormal_handle_event},
shutdown, stop_and_reply, state_enter, event_order,
- state_timeout, code_change,
+ state_timeout, event_types, code_change,
{group, sys},
hibernate, enter_loop].
@@ -600,15 +600,26 @@ state_enter(_Config) ->
(internal, Prev, N) ->
Self ! {internal,start,Prev,N},
{keep_state,N + 1};
+ ({call,From}, repeat, N) ->
+ {repeat_state,N + 1,
+ [{reply,From,{repeat,start,N}}]};
({call,From}, echo, N) ->
- {next_state,wait,N + 1,{reply,From,{echo,start,N}}};
+ {next_state,wait,N + 1,
+ {reply,From,{echo,start,N}}};
({call,From}, {stop,Reason}, N) ->
- {stop_and_reply,Reason,[{reply,From,{stop,N}}],N + 1}
+ {stop_and_reply,Reason,
+ [{reply,From,{stop,N}}],N + 1}
end,
wait =>
- fun (enter, Prev, N) ->
+ fun (enter, Prev, N) when N < 5 ->
+ {repeat_state,N + 1,
+ {reply,{Self,N},{enter,Prev}}};
+ (enter, Prev, N) ->
Self ! {enter,wait,Prev,N},
{keep_state,N + 1};
+ ({call,From}, repeat, N) ->
+ {repeat_state_and_data,
+ [{reply,From,{repeat,wait,N}}]};
({call,From}, echo, N) ->
{next_state,start,N + 1,
[{next_event,internal,wait},
@@ -620,11 +631,15 @@ state_enter(_Config) ->
[{enter,start,start,1}] = flush(),
{echo,start,2} = gen_statem:call(STM, echo),
- [{enter,wait,start,3}] = flush(),
- {wait,[4|_]} = sys:get_state(STM),
- {echo,wait,4} = gen_statem:call(STM, echo),
- [{enter,start,wait,5},{internal,start,wait,6}] = flush(),
- {stop,7} = gen_statem:call(STM, {stop,bye}),
+ [{3,{enter,start}},{4,{enter,start}},{enter,wait,start,5}] = flush(),
+ {wait,[6|_]} = sys:get_state(STM),
+ {repeat,wait,6} = gen_statem:call(STM, repeat),
+ [{enter,wait,wait,6}] = flush(),
+ {echo,wait,7} = gen_statem:call(STM, echo),
+ [{enter,start,wait,8},{internal,start,wait,9}] = flush(),
+ {repeat,start,10} = gen_statem:call(STM, repeat),
+ [{enter,start,start,11}] = flush(),
+ {stop,12} = gen_statem:call(STM, {stop,bye}),
[{'EXIT',STM,bye}] = flush(),
{noproc,_} =
@@ -801,6 +816,74 @@ state_timeout(_Config) ->
+%% Test that all event types can be sent with {next_event,EventType,_}
+event_types(_Config) ->
+ process_flag(trap_exit, true),
+
+ Machine =
+ %% Abusing the internal format of From...
+ #{init =>
+ fun () ->
+ {ok, start, undefined}
+ end,
+ start =>
+ fun ({call,_} = Call, Req, undefined) ->
+ {next_state, state1, undefined,
+ [{next_event,internal,1},
+ {next_event,state_timeout,2},
+ {next_event,timeout,3},
+ {next_event,info,4},
+ {next_event,cast,5},
+ {next_event,Call,Req}]}
+ end,
+ state1 =>
+ fun (internal, 1, undefined) ->
+ {next_state, state2, undefined}
+ end,
+ state2 =>
+ fun (state_timeout, 2, undefined) ->
+ {next_state, state3, undefined}
+ end,
+ state3 =>
+ fun (timeout, 3, undefined) ->
+ {next_state, state4, undefined}
+ end,
+ state4 =>
+ fun (info, 4, undefined) ->
+ {next_state, state5, undefined}
+ end,
+ state5 =>
+ fun (cast, 5, undefined) ->
+ {next_state, state6, undefined}
+ end,
+ state6 =>
+ fun ({call,From}, stop, undefined) ->
+ {stop_and_reply, shutdown,
+ [{reply,From,stopped}]}
+ end},
+ {ok,STM} =
+ gen_statem:start_link(
+ ?MODULE, {map_statem,Machine,[]}, [{debug,[trace]}]),
+
+ stopped = gen_statem:call(STM, stop),
+ receive
+ {'EXIT',STM,shutdown} ->
+ ok
+ after 500 ->
+ ct:fail(did_not_stop)
+ end,
+
+ {noproc,_} =
+ ?EXPECT_FAILURE(gen_statem:call(STM, hej), Reason),
+ case flush() of
+ [] ->
+ ok;
+ Other2 ->
+ ct:fail({unexpected,Other2})
+ end.
+
+
+
sys1(Config) ->
{ok,Pid} = gen_statem:start(?MODULE, start_arg(Config, []), []),
{status, Pid, {module,gen_statem}, _} = sys:get_status(Pid),
@@ -1722,6 +1805,10 @@ handle_event(
{keep_state,[NewData|Machine]};
{keep_state,NewData,Ops} ->
{keep_state,[NewData|Machine],Ops};
+ {repeat_state,NewData} ->
+ {repeat_state,[NewData|Machine]};
+ {repeat_state,NewData,Ops} ->
+ {repeat_state,[NewData|Machine],Ops};
Other ->
Other
end;