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authorBjörn Gustavsson <[email protected]>2015-01-13 11:21:32 +0100
committerBjörn Gustavsson <[email protected]>2015-01-21 10:01:21 +0100
commit19f3040b17697d5e94f178a32a0404940989914f (patch)
tree8d9384cdef9a93050137c573bd5ca94e1426b38d /lib/compiler/test
parentc03889dcbce713c4dbf70b9415aeb7f0b904929c (diff)
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Add beam_utils_SUITE to cover more lines in beam_utils
Diffstat (limited to 'lib/compiler/test')
-rw-r--r--lib/compiler/test/Makefile3
-rw-r--r--lib/compiler/test/beam_utils_SUITE.erl236
2 files changed, 239 insertions, 0 deletions
diff --git a/lib/compiler/test/Makefile b/lib/compiler/test/Makefile
index 892a401c75..73d52a48bc 100644
--- a/lib/compiler/test/Makefile
+++ b/lib/compiler/test/Makefile
@@ -11,6 +11,7 @@ MODULES= \
beam_validator_SUITE \
beam_disasm_SUITE \
beam_except_SUITE \
+ beam_utils_SUITE \
bs_bincomp_SUITE \
bs_bit_binaries_SUITE \
bs_construct_SUITE \
@@ -40,6 +41,7 @@ NO_OPT= \
andor \
apply \
beam_except \
+ beam_utils \
bs_construct \
bs_match \
bs_utf \
@@ -59,6 +61,7 @@ NO_OPT= \
INLINE= \
andor \
apply \
+ beam_utils \
bs_bincomp \
bs_bit_binaries \
bs_construct \
diff --git a/lib/compiler/test/beam_utils_SUITE.erl b/lib/compiler/test/beam_utils_SUITE.erl
new file mode 100644
index 0000000000..9142ca6485
--- /dev/null
+++ b/lib/compiler/test/beam_utils_SUITE.erl
@@ -0,0 +1,236 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2015. 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
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(beam_utils_SUITE).
+
+-export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1,
+ init_per_group/2,end_per_group/2,
+ apply_fun/1,apply_mf/1,bs_init/1,bs_save/1,
+ is_not_killed/1,is_not_used_at/1,
+ select/1,y_catch/1]).
+-export([id/1]).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ test_lib:recompile(?MODULE),
+ [{group,p}].
+
+groups() ->
+ [{p,test_lib:parallel(),
+ [apply_fun,
+ apply_mf,
+ bs_init,
+ bs_save,
+ is_not_killed,
+ is_not_used_at,
+ select,
+ y_catch
+ ]}].
+
+init_per_suite(Config) ->
+ Config.
+
+end_per_suite(_Config) ->
+ ok.
+
+init_per_group(_GroupName, Config) ->
+ Config.
+
+end_per_group(_GroupName, Config) ->
+ Config.
+
+apply_fun(_Config) ->
+ 3 = do_apply_fun(false, false),
+ 3 = do_apply_fun(false, true),
+ 3 = do_apply_fun(true, false),
+ 2 = do_apply_fun(true, true),
+ ok.
+
+do_apply_fun(X, Y) ->
+ F = fun(I) -> I+1 end,
+ Arg = case X andalso id(Y) of
+ true -> 1;
+ false -> 2
+ end,
+ F(Arg).
+
+apply_mf(_Config) ->
+ ok = do_apply_mf_used({a,b}, ?MODULE, id),
+ error = do_apply_mf_used([a], ?MODULE, id),
+ {'EXIT',{{case_clause,{[],b}},_}} = (catch do_apply_mf_used({[],b}, ?MODULE, id)),
+
+ error = do_apply_mf_killed({error,[a]}, ?MODULE, id),
+ ok = do_apply_mf_killed([b], ?MODULE, id),
+ {'EXIT',{{case_clause,{a,[b]}},_}} = (catch do_apply_mf_killed({a,[b]}, ?MODULE, id)),
+ {'EXIT',{{case_clause,{error,[]}},_}} = (catch do_apply_mf_killed({error,[]}, ?MODULE, id)),
+
+ ok.
+
+do_apply_mf_used(Arg, Mod, Func) ->
+ Res = case id(Arg) of
+ {Decoded,_} when Decoded =/= [] ->
+ ok;
+ List when is_list(List) ->
+ error
+ end,
+ Mod:Func(Res).
+
+do_apply_mf_killed(Arg, Mod, Func) ->
+ Res = case id(Arg) of
+ {Tag,Decoded} when Decoded =/= [], Tag =:= error ->
+ error;
+ List when is_list(List) ->
+ ok
+ end,
+ Mod:Func(Res).
+
+bs_init(_Config) ->
+ <<7>> = do_bs_init_1([?MODULE], 7),
+ error = do_bs_init_1([?MODULE], 0.0),
+ error = do_bs_init_1([?MODULE], -43),
+ error = do_bs_init_1([?MODULE], 42),
+
+ <<>> = do_bs_init_2([]),
+ <<0:32,((1 bsl 32)-1):32>> = do_bs_init_2([0,(1 bsl 32)-1]),
+ {'EXIT',{badarg,_}} = (catch do_bs_init_2([0.5])),
+ {'EXIT',{badarg,_}} = (catch do_bs_init_2([-1])),
+ {'EXIT',{badarg,_}} = (catch do_bs_init_2([1 bsl 32])),
+ ok.
+
+do_bs_init_1([?MODULE], Sz) ->
+ if
+ is_integer(Sz), Sz >= -42, Sz < 42 ->
+ id(<<Sz:8>>);
+ true ->
+ error
+ end.
+
+do_bs_init_2(SigNos) ->
+ << <<SigNo:32>> ||
+ SigNo <- SigNos,
+ (is_integer(SigNo) andalso SigNo >= 0 andalso SigNo < (1 bsl 32)) orelse
+ erlang:error(badarg)
+ >>.
+
+
+bs_save(_Config) ->
+ {a,30,<<>>} = do_bs_save(<<1:1,30:5>>),
+ {b,127,<<>>} = do_bs_save(<<1:1,31:5,0:1,127:7>>),
+ {c,127,<<>>} = do_bs_save(<<1:1,31:5,1:1,127:7>>),
+ {c,127,<<>>} = do_bs_save(<<0:1,31:5,1:1,127:7>>),
+ {d,1024,<<>>} = do_bs_save(<<0:1,31:5>>),
+ ok.
+
+do_bs_save(<<_:1, Tag:5, T/binary>>) when Tag < 31 ->
+ {a,Tag,T};
+do_bs_save(<<1:1, 31:5, 0:1, Tag:7, T/binary>>) ->
+ {b,Tag,T};
+do_bs_save(<<_:1, 31:5, 1:1, Tag:7, T/binary>>) ->
+ {c,Tag,T};
+do_bs_save(<<_:1, 31:5, T/binary>>) ->
+ {d,1024,T}.
+
+is_not_killed(_Config) ->
+ {Pid,Ref} = spawn_monitor(fun() -> exit(banan) end),
+ receive
+ {'DOWN', Ref, process, Pid, banan} ->
+ ok
+ end,
+ receive after 0 -> ok end.
+
+is_not_used_at(_Config) ->
+ {a,b} = do_is_not_used_at(a, [{a,b}]),
+ {a,b} = do_is_not_used_at(a, [x,{a,b}]),
+ {a,b} = do_is_not_used_at(a, [{x,y},{a,b}]),
+ none = do_is_not_used_at(z, [{a,b}]),
+ none = do_is_not_used_at(a, [x]),
+ none = do_is_not_used_at(a, [{x,y}]),
+ ok.
+
+do_is_not_used_at(Key, [P|Ps]) ->
+ if
+ tuple_size(P) >= 1, element(1, P) =:= Key ->
+ P;
+ true ->
+ do_is_not_used_at(Key, Ps)
+ end;
+do_is_not_used_at(_Key, []) -> none.
+
+-record(select, {fixed=false}).
+
+select(_Config) ->
+ a = do_select(#select{}, 0, 0),
+ b = do_select(#select{}, 0, 1),
+ c = do_select(#select{fixed=true}, 0, 0),
+ c = do_select(#select{fixed=true}, 0, 1),
+ ok.
+
+do_select(Head, OldSize, BSize) ->
+ Overwrite0 =
+ if
+ OldSize =:= BSize -> same;
+ true -> true
+ end,
+ Overwrite =
+ if
+ Head#select.fixed =/= false ->
+ false;
+ true ->
+ Overwrite0
+ end,
+ if
+ Overwrite =:= same ->
+ a;
+ Overwrite ->
+ b;
+ true ->
+ c
+ end.
+
+y_catch(_Config) ->
+ ok = try
+ do_y_catch(<<"<?xmlX">>, {state}),
+ failed
+ catch
+ throw:{<<"<?xmlX">>,{state}} ->
+ ok
+ end.
+
+do_y_catch(<<"<?xml",Rest0/binary>> = Bytes, State0) ->
+ {Rest1,State1} =
+ case do_y_catch_1(Rest0, State0) of
+ false ->
+ {Bytes,State0};
+ true ->
+ {_XmlAttributes, R, S} = do_y_catch_2(Rest0),
+ {R,S}
+ end,
+ case catch id({Rest1,State1}) of
+ Other ->
+ throw(Other)
+ end.
+
+do_y_catch_1(<<_,_/binary>>, _) ->
+ false.
+
+do_y_catch_2(_) -> {a,b,c}.
+
+
+%% The identity function.
+id(I) -> I.