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authorSverker Eriksson <[email protected]>2015-09-01 19:09:39 +0200
committerSverker Eriksson <[email protected]>2015-09-01 20:07:51 +0200
commit0c52e3c18da16dbb896871865b71093b8c5617c4 (patch)
tree46f43f6445e302b253bcd97060606851c9c73502 /erts/emulator/test
parenta22b5ba19193e3f39129fadd20d375f6cc3f8529 (diff)
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erts: Add testcase for tracing whith 'process_dump'
of a process with a matchstate on the stack.
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/match_spec_SUITE.erl60
1 files changed, 39 insertions, 21 deletions
diff --git a/erts/emulator/test/match_spec_SUITE.erl b/erts/emulator/test/match_spec_SUITE.erl
index fdce157abc..bfa09c625f 100644
--- a/erts/emulator/test/match_spec_SUITE.erl
+++ b/erts/emulator/test/match_spec_SUITE.erl
@@ -167,12 +167,11 @@ test_1(Config) when is_list(Config) ->
[{['$1','$1'],[{is_atom, '$1'}],[kakalorum]}],
[{call, {?MODULE, f2, [a, a]}}]),
-% case tr0(fun() -> ?MODULE:f2(a, a) end,
-% {?MODULE, f2, 2},
-% [{['$1','$1'],[{is_atom, '$1'}],[{message, {process_dump}}]}]) of
-% [{trace, _, call, {?MODULE, f2, [a, a]}, Bin}] ->
-% erlang:display(binary_to_list(Bin))
-% end,
+ %% Verify that 'process_dump' can handle a matchstate on the stack.
+ tr(fun() -> fbinmatch(<<0>>, 0) end,
+ {?MODULE, f1, 1},
+ [{['_'],[],[{message, {process_dump}}]}],
+ [fun({trace, _, call, {?MODULE, f1, [0]}, _Bin}) -> true end]),
% Error cases
?line errchk([{['$1','$1'],[{is_atom, '$1'}],[{banka, kanin}]}]),
@@ -928,14 +927,14 @@ tr(Fun, MFA, TraceFlags, Pat, PatFlags, Expected0) ->
erlang:trace(P, true, TraceFlags),
erlang:trace_pattern(MFA, Pat, PatFlags),
lists:map(
- fun(X) ->
- list_to_tuple([trace, P | tuple_to_list(X)])
+ fun(X) when is_function(X,1) -> X;
+ (X) -> list_to_tuple([trace, P | tuple_to_list(X)])
end,
Expected0)
end).
tr(RunFun, ControlFun) ->
- P = spawn(?MODULE, runner, [self(), RunFun]),
+ P = spawn_link(?MODULE, runner, [self(), RunFun]),
collect(P, ControlFun(P)).
collect(P, TMs) ->
@@ -954,18 +953,33 @@ collect([]) ->
collect([TM | TMs]) ->
?t:format( "Expecting: ~p~n", [TM]),
receive
- M ->
- case if element(1, M) == trace_ts ->
- list_to_tuple(lists:reverse(
- tl(lists:reverse(tuple_to_list(M)))));
- true -> M
- end of
- TM ->
- ?t:format("Got: ~p~n", [M]),
- collect(TMs);
- _ ->
- ?t:format("Got unexpected: ~p~n", [M]),
- flush({got_unexpected,M})
+ M0 ->
+ M = case element(1, M0) of
+ trace_ts ->
+ list_to_tuple(lists:reverse(
+ tl(lists:reverse(tuple_to_list(M0)))));
+ _ -> M0
+ end,
+ case is_function(TM,1) of
+ true ->
+ case (catch TM(M)) of
+ true ->
+ ?t:format("Got: ~p~n", [M]),
+ collect(TMs);
+ _ ->
+ ?t:format("Got unexpected: ~p~n", [M]),
+ flush({got_unexpected,M})
+ end;
+
+ false ->
+ case M of
+ TM ->
+ ?t:format("Got: ~p~n", [M]),
+ collect(TMs);
+ _ ->
+ ?t:format("Got unexpected: ~p~n", [M]),
+ flush({got_unexpected,M})
+ end
end
end.
@@ -1045,6 +1059,10 @@ fn(X, Y) ->
fn(X, Y, Z) ->
[X, Y, Z].
+fbinmatch(<<Int, Rest/binary>>, Acc) ->
+ fbinmatch(Rest, [?MODULE:f1(Int) | Acc]);
+fbinmatch(<<>>, Acc) -> Acc.
+
id(X) ->
X.