aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/test
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/test')
-rw-r--r--erts/emulator/test/code_SUITE.erl31
-rw-r--r--erts/emulator/test/code_SUITE_data/fun_confusion.erl31
-rw-r--r--erts/emulator/test/float_SUITE.erl101
3 files changed, 157 insertions, 6 deletions
diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl
index 29cbdedd17..61eeec5ffd 100644
--- a/erts/emulator/test/code_SUITE.erl
+++ b/erts/emulator/test/code_SUITE.erl
@@ -25,7 +25,7 @@
t_check_process_code_ets/1,
external_fun/1,get_chunk/1,module_md5/1,make_stub/1,
make_stub_many_funs/1,constant_pools/1,
- false_dependency/1,coverage/1]).
+ false_dependency/1,coverage/1,fun_confusion/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -35,7 +35,7 @@ all() ->
[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, false_dependency, coverage].
+ constant_pools, false_dependency, coverage, fun_confusion].
groups() ->
[].
@@ -278,7 +278,8 @@ t_check_old_code(Config) when is_list(Config) ->
external_fun(Config) when is_list(Config) ->
?line false = erlang:function_exported(another_code_test, x, 1),
- ?line ExtFun = erlang:make_fun(id(another_code_test), x, 1),
+ AnotherCodeTest = id(another_code_test),
+ ExtFun = fun AnotherCodeTest:x/1,
?line {'EXIT',{undef,_}} = (catch ExtFun(answer)),
?line false = erlang:function_exported(another_code_test, x, 1),
?line false = lists:member(another_code_test, erlang:loaded()),
@@ -555,6 +556,30 @@ coverage(Config) when is_list(Config) ->
?line {'EXIT',{badarg,_}} = (catch erlang:module_loaded(42)),
ok.
+fun_confusion(Config) when is_list(Config) ->
+ Data = ?config(data_dir, Config),
+ Src = filename:join(Data, "fun_confusion"),
+ Mod = fun_confusion,
+
+ %% Load first version of module.
+ compile_load(Mod, Src, 1),
+ F1 = Mod:f(),
+ 1 = F1(),
+
+ %% Load second version of module.
+ compile_load(Mod, Src, 2),
+ F2 = Mod:f(),
+
+ %% F1 should refer to the old code, not the newly loaded code.
+ 1 = F1(),
+ 2 = F2(),
+ ok.
+
+compile_load(Mod, Src, Ver) ->
+ {ok,Mod,Code1} = compile:file(Src, [binary,{d,version,Ver}]),
+ {module,Mod} = code:load_binary(Mod, "fun_confusion.beam", Code1),
+ ok.
+
%% Utilities.
make_sub_binary(Bin) when is_binary(Bin) ->
diff --git a/erts/emulator/test/code_SUITE_data/fun_confusion.erl b/erts/emulator/test/code_SUITE_data/fun_confusion.erl
new file mode 100644
index 0000000000..16000861df
--- /dev/null
+++ b/erts/emulator/test/code_SUITE_data/fun_confusion.erl
@@ -0,0 +1,31 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2011. 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(fun_confusion).
+
+-export([f/0]).
+
+f() ->
+ fun() -> version() end.
+
+version() ->
+ %% Changing the value returned here should change
+ %% the identity of the fun in f/0.
+ ?version.
+
diff --git a/erts/emulator/test/float_SUITE.erl b/erts/emulator/test/float_SUITE.erl
index 736510339f..46466427c5 100644
--- a/erts/emulator/test/float_SUITE.erl
+++ b/erts/emulator/test/float_SUITE.erl
@@ -25,7 +25,7 @@
init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
fpe/1,fp_drv/1,fp_drv_thread/1,denormalized/1,match/1,
- bad_float_unpack/1]).
+ bad_float_unpack/1,cmp_zero/1, cmp_integer/1, cmp_bignum/1]).
-export([otp_7178/1]).
@@ -41,10 +41,10 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[fpe, fp_drv, fp_drv_thread, otp_7178, denormalized,
- match, bad_float_unpack].
+ match, bad_float_unpack, {group, comparison}].
groups() ->
- [].
+ [{comparison, [parallel], [cmp_zero, cmp_integer, cmp_bignum]}].
init_per_suite(Config) ->
Config.
@@ -187,6 +187,101 @@ bad_float_unpack(Config) when is_list(Config) ->
bad_float_unpack_match(<<F:64/float>>) -> F;
bad_float_unpack_match(<<I:64/integer-signed>>) -> I.
+cmp_zero(_Config) ->
+ cmp(0.5e-323,0).
+
+cmp_integer(_Config) ->
+ Axis = (1 bsl 53)-2.0, %% The point where floating points become unprecise
+ span_cmp(Axis,2,200),
+ cmp(Axis*Axis,round(Axis)).
+
+cmp_bignum(_Config) ->
+ span_cmp((1 bsl 58) - 1.0),%% Smallest bignum float
+
+ %% Test when the big num goes from I to I+1 in size
+ [span_cmp((1 bsl (32*I)) - 1.0) || I <- lists:seq(2,30)],
+
+ %% Test bignum greater then largest float
+ cmp((1 bsl (64*16)) - 1, (1 bsl (64*15)) * 1.0),
+ %% Test when num is much larger then float
+ [cmp((1 bsl (32*I)) - 1, (1 bsl (32*(I-2))) * 1.0) || I <- lists:seq(3,30)],
+ %% Test when float is much larger than num
+ [cmp((1 bsl (64*15)) * 1.0, (1 bsl (32*(I)))) || I <- lists:seq(1,29)],
+
+ %% Test that all int == float works as they should
+ [true = 1 bsl N == (1 bsl N)*1.0 || N <- lists:seq(0, 1023)],
+ [true = (1 bsl N)*-1 == (1 bsl N)*-1.0 || N <- lists:seq(0, 1023)].
+
+span_cmp(Axis) ->
+ span_cmp(Axis, 25).
+span_cmp(Axis, Length) ->
+ span_cmp(Axis, round(Axis) bsr 52, Length).
+span_cmp(Axis, Incr, Length) ->
+ [span_cmp(Axis, Incr, Length, 1 bsl (1 bsl I)) || I <- lists:seq(0,6)].
+%% This function creates tests around number axis. Both <, > and == is tested
+%% for both negative and positive numbers.
+%%
+%% Axis: The number around which to do the tests eg. (1 bsl 58) - 1.0
+%% Incr: How much to increment the test numbers inbetween each test.
+%% Length: Length/2 is the number of Incr away from Axis to test on the
+%% negative and positive plane.
+%% Diff: How much the float and int should differ when comparing
+span_cmp(Axis, Incr, Length, Diff) ->
+ [begin
+ cmp(round(Axis*-1.0)+Diff+I*Incr,Axis*-1.0+I*Incr),
+ cmp(Axis*-1.0+I*Incr,round(Axis*-1.0)-Diff+I*Incr)
+ end || I <- lists:seq((Length div 2)*-1,(Length div 2))],
+ [begin
+ cmp(round(Axis)+Diff+I*Incr,Axis+I*Incr),
+ cmp(Axis+I*Incr,round(Axis)-Diff+I*Incr)
+ end || I <- lists:seq((Length div 2)*-1,(Length div 2))].
+
+cmp(Big,Small) when is_float(Big) ->
+ BigGtSmall = lists:flatten(
+ io_lib:format("~f > ~p",[Big,Small])),
+ BigLtSmall = lists:flatten(
+ io_lib:format("~f < ~p",[Big,Small])),
+ BigEqSmall = lists:flatten(
+ io_lib:format("~f == ~p",[Big,Small])),
+ SmallGtBig = lists:flatten(
+ io_lib:format("~p > ~f",[Small,Big])),
+ SmallLtBig = lists:flatten(
+ io_lib:format("~p < ~f",[Small,Big])),
+ SmallEqBig = lists:flatten(
+ io_lib:format("~p == ~f",[Small,Big])),
+ cmp(Big,Small,BigGtSmall,BigLtSmall,SmallGtBig,SmallLtBig,
+ SmallEqBig,BigEqSmall);
+cmp(Big,Small) when is_float(Small) ->
+ BigGtSmall = lists:flatten(
+ io_lib:format("~p > ~f",[Big,Small])),
+ BigLtSmall = lists:flatten(
+ io_lib:format("~p < ~f",[Big,Small])),
+ BigEqSmall = lists:flatten(
+ io_lib:format("~p == ~f",[Big,Small])),
+ SmallGtBig = lists:flatten(
+ io_lib:format("~f > ~p",[Small,Big])),
+ SmallLtBig = lists:flatten(
+ io_lib:format("~f < ~p",[Small,Big])),
+ SmallEqBig = lists:flatten(
+ io_lib:format("~f == ~p",[Small,Big])),
+ cmp(Big,Small,BigGtSmall,BigLtSmall,SmallGtBig,SmallLtBig,
+ SmallEqBig,BigEqSmall).
+
+cmp(Big,Small,BigGtSmall,BigLtSmall,SmallGtBig,SmallLtBig,
+ SmallEqBig,BigEqSmall) ->
+ {_,_,_,true} = {Big,Small,BigGtSmall,
+ Big > Small},
+ {_,_,_,false} = {Big,Small,BigLtSmall,
+ Big < Small},
+ {_,_,_,false} = {Big,Small,SmallGtBig,
+ Small > Big},
+ {_,_,_,true} = {Big,Small,SmallLtBig,
+ Small < Big},
+ {_,_,_,false} = {Big,Small,SmallEqBig,
+ Small == Big},
+ {_,_,_,false} = {Big,Small,BigEqSmall,
+ Big == Small}.
+
id(I) -> I.
start_node(Config) when is_list(Config) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-25 11:12:51 +0000