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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2011-2023. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(pubkey_cert_SUITE).
-include_lib("common_test/include/ct.hrl").
%% -include_lib("public_key/include/public_key.hrl").
%% Note: This directive should only be used in test suites.
-compile(export_all).
%%--------------------------------------------------------------------
%% Common Test interface functions -----------------------------------
%%--------------------------------------------------------------------
all() ->
[{group, time_str_2_gregorian_sec}].
groups() ->
[{time_str_2_gregorian_sec, [], time_str_two_gregorian()}].
time_str_two_gregorian() ->
[ time_str_2_gregorian_utc_post2000
, time_str_2_gregorian_utc_limit_50_years_before_current_time
, time_str_2_gregorian_utc_limit_51_years_before_current_time
, time_str_2_gregorian_utc_limit_50_years_from_current_time
, time_str_2_gregorian_utc_limit_49_years_from_current_time
, time_str_2_gregorian_generaltime_50_years_before_current_time
, time_str_2_gregorian_generaltime_50_years_from_current_time
].
%%--------------------------------------------------------------------
%% Test Cases --------------------------------------------------------
%%--------------------------------------------------------------------
time_str_2_gregorian_utc_post2000() ->
[{doc, "Tests a valid gregorian Utc time"}].
time_str_2_gregorian_utc_post2000(_) ->
YYMMDD = "450101",
HHMMSSZ = "000000Z",
ExpectedYear = 2045,
UtcTime = {utcTime, YYMMDD ++ HHMMSSZ},
{ExpectedDate, _} = convert_to_datetime_format(UtcTime, ExpectedYear),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
{ExpectedDate, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_utc_limit_50_years_before_current_time() ->
[{doc, "Tests limit of gregorian Utc time 50 years before current time"}].
time_str_2_gregorian_utc_limit_50_years_before_current_time(_) ->
{ExpectedDate, UtcTime} = get_date(utcTime, -50),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
{ExpectedDate, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_utc_limit_51_years_before_current_time() ->
[{doc, "Tests limit of gregorian Utc time 51 years before current time"}].
time_str_2_gregorian_utc_limit_51_years_before_current_time(_) ->
{{Y, M, D}, UtcTime} = get_date(utcTime, -51),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
%% the sliding window method from pubkey_cert reaches its limit and
%% reverses the year from 19XX to 20XX. Because of this, the expected
%% year is current_year + 50, or ExpectedYear + 100 (they are equivalent)
ExpectedYear = Y + 100,
{{ExpectedYear, M, D}, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_utc_limit_50_years_from_current_time() ->
[{doc, "Tests a valid gregorian Utc time 50 years from now"}].
time_str_2_gregorian_utc_limit_50_years_from_current_time(_) ->
{{Y, M, D}, UtcTime} = get_date(utcTime, 50),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
%% the sliding window method from pubkey_cert reaches its limit and
%% reverses the year from 20XX to 19XX. Because of this, the expected
%% year is current_year - 50, or ExpectedYear - 100 (they are equivalent)
ExpectedYear = Y - 100,
{{ExpectedYear, M, D}, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_utc_limit_49_years_from_current_time() ->
[{doc, "Tests a valid gregorian Utc time 49 years from now"}].
time_str_2_gregorian_utc_limit_49_years_from_current_time(_) ->
{ExpectedDate, UtcTime} = get_date(utcTime, 49),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
{ExpectedDate, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_generaltime_50_years_before_current_time() ->
[{doc, "Tests a valid general time 50 years before current time"}].
time_str_2_gregorian_generaltime_50_years_before_current_time(_) ->
{ExpectedDate, UtcTime} = get_date(generalTime, -50),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
{ExpectedDate, _} = calendar:gregorian_seconds_to_datetime(Result).
time_str_2_gregorian_generaltime_50_years_from_current_time() ->
[{doc, "Tests a valid general time 50 years from now"}].
time_str_2_gregorian_generaltime_50_years_from_current_time(_) ->
{ExpectedDate, UtcTime} = get_date(generalTime, 50),
Result = pubkey_cert:time_str_2_gregorian_sec(UtcTime),
{ExpectedDate, _} = calendar:gregorian_seconds_to_datetime(Result).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% Helper functions
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec convert_to_datetime_format({Format, Date}, ExpectedYear) -> Result when
Format :: generalTime | utcTime,
Date :: YYMMDDHHMMSS | YYYYMMDDHHMMSS,
YYMMDDHHMMSS :: string(),
YYYYMMDDHHMMSS :: string(),
ExpectedYear :: non_neg_integer(),
Result :: {{non_neg_integer(), 1..12, 1..31}, {0, 0, 0}}.
convert_to_datetime_format({Format, Date}, ExpectedYear) ->
YYMMDD = group_year(Format, Date),
[Y, M, D] = lists:map(fun (Str) -> erlang:list_to_integer(Str) end, YYMMDD),
%% assertions to test that the result is the expected one
case Format of
utcTime -> (ExpectedYear rem 100) =:= Y;
generalTime -> ExpectedYear =:= Y
end,
{{ExpectedYear, M, D}, {0, 0, 0}}.
-spec get_date(Format, YearsFromNow) -> {{Year, Month, Day}, UtcDate} when
Format :: utcTime | generalTime,
YearsFromNow :: integer(),
Year :: non_neg_integer(),
Month :: 1..12,
Day :: 1..31,
UtcDate :: string().
get_date(Format, Years) ->
{YYYY, MM0, DD0} = date(),
MM = io_lib:format("~2..0w", [MM0]),
DD = io_lib:format("~2..0w", [DD0]),
ExpectedYear = YYYY + Years,
YYMMDD = format_year(Format, ExpectedYear, {MM, DD}),
HHMMSSZ = "000000Z",
FormattedTime = {Format, YYMMDD ++ HHMMSSZ},
{ExpectedDate, _} = convert_to_datetime_format(FormattedTime, ExpectedYear),
{ExpectedDate, FormattedTime}.
-spec format_year(Format, ExpectedYear, {Month, Day}) -> YYMMDD | YYYYMMDD when
Format :: utcTime | generalTime,
ExpectedYear :: non_neg_integer(),
Month :: string(),
Day :: string(),
YYMMDD :: string(),
YYYYMMDD :: string().
format_year(utcTime, ExpectedYear, {MM, DD}) ->
YY = erlang:integer_to_list((ExpectedYear) rem 100),
lists:flatten(YY++MM++DD);
format_year(generalTime, ExpectedYear, {MM, DD}) ->
YY = erlang:integer_to_list(ExpectedYear),
lists:flatten(YY++MM++DD).
-spec group_year(Format, Date) -> [list()] when
Format :: utcTime | generalTime,
Date :: [non_neg_integer()].
group_year(utcTime, [Y1, Y2, M1, M2, D1, D2 | _]) ->
[[Y1, Y2], [M1, M2], [D1, D2]];
group_year(generalTime, [Y1, Y2, Y3, Y4, M1, M2, D1, D2 | _]) ->
[[Y1, Y2, Y3, Y4], [M1, M2], [D1, D2]].
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