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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2019-2019. 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(phash2_properties).
-ifdef(PROPER).
-include_lib("proper/include/proper.hrl").
-export([prop_phash2_same_with_same_input/0,
prop_phash2_same_with_same_long_input/0,
prop_phash2_same_in_different_versions/1,
prop_phash2_same_in_different_versions_with_long_input/1]).
-proptest([proper]).
%%--------------------------------------------------------------------
%% Properties --------------------------------------------------------
%%--------------------------------------------------------------------
prop_phash2_same_with_same_input() ->
?FORALL(T, any(), erlang:phash2(T) =:= erlang:phash2(T)).
prop_phash2_same_with_same_long_input() ->
?FORALL(T, any(),
begin
BigTerm = lists:duplicate(10000, T),
erlang:phash2(BigTerm) =:= erlang:phash2(BigTerm)
end).
prop_phash2_same_in_different_versions(DifferntVersionNode) ->
?FORALL(T, any(),
erlang:phash2(T) =:= rpc:call(DifferntVersionNode,erlang,phash2,[T])).
prop_phash2_same_in_different_versions_with_long_input(DifferntVersionNode) ->
?FORALL(T, any(),
begin
BigTerm = lists:duplicate(10000, T),
RpcRes = rpc:call(DifferntVersionNode,erlang,phash2,[BigTerm]),
LocalRes = erlang:phash2(BigTerm),
RpcRes =:= LocalRes
end).
%%--------------------------------------------------------------------
%% Generators -------------------------------------------------------
%%--------------------------------------------------------------------
-endif.
|
