From 6d18638d747374cb0e90e9bcbefbc71d959254fd Mon Sep 17 00:00:00 2001 From: Brad Anderson Date: Wed, 18 Aug 2010 16:16:09 -0400 Subject: clear out root folder a bit, moving couch bits into apps/couch or rel/ --- test/etap/041-uuid-gen.t | 118 ----------------------------------------------- 1 file changed, 118 deletions(-) delete mode 100755 test/etap/041-uuid-gen.t (limited to 'test/etap/041-uuid-gen.t') diff --git a/test/etap/041-uuid-gen.t b/test/etap/041-uuid-gen.t deleted file mode 100755 index 1e6aa9ee..00000000 --- a/test/etap/041-uuid-gen.t +++ /dev/null @@ -1,118 +0,0 @@ -#!/usr/bin/env escript -%% -*- erlang -*- - -% 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. - -default_config() -> - test_util:build_file("etc/couchdb/default_dev.ini"). - -seq_alg_config() -> - test_util:source_file("test/etap/041-uuid-gen-seq.ini"). - -utc_alg_config() -> - test_util:source_file("test/etap/041-uuid-gen-utc.ini"). - -% Run tests and wait for the gen_servers to shutdown -run_test(IniFiles, Test) -> - {ok, Pid} = couch_config:start_link(IniFiles), - erlang:monitor(process, Pid), - couch_uuids:start(), - Test(), - couch_uuids:stop(), - couch_config:stop(), - receive - {'DOWN', _, _, Pid, _} -> ok; - _Other -> etap:diag("OTHER: ~p~n", [_Other]) - after - 1000 -> throw({timeout_error, config_stop}) - end. - -main(_) -> - test_util:init_code_path(), - application:start(crypto), - etap:plan(6), - - case (catch test()) of - ok -> - etap:end_tests(); - Other -> - etap:diag(io_lib:format("Test died abnormally: ~p", [Other])), - etap:bail(Other) - end, - ok. - -test() -> - - TestUnique = fun() -> - etap:is( - test_unique(10000, couch_uuids:new()), - true, - "Can generate 10K unique IDs" - ) - end, - run_test([default_config()], TestUnique), - run_test([default_config(), seq_alg_config()], TestUnique), - run_test([default_config(), utc_alg_config()], TestUnique), - - TestMonotonic = fun () -> - etap:is( - couch_uuids:new() < couch_uuids:new(), - true, - "should produce monotonically increasing ids" - ) - end, - run_test([default_config(), seq_alg_config()], TestMonotonic), - run_test([default_config(), utc_alg_config()], TestMonotonic), - - % Pretty sure that the average of a uniform distribution is the - % midpoint of the range. Thus, to exceed a threshold, we need - % approximately Total / (Range/2 + RangeMin) samples. - % - % In our case this works out to be 8194. (0xFFF000 / 0x7FF) - % These tests just fudge the limits for a good generator at 25% - % in either direction. Technically it should be possible to generate - % bounds that will show if your random number generator is not - % sufficiently random but I hated statistics in school. - TestRollOver = fun() -> - UUID = binary_to_list(couch_uuids:new()), - Prefix = element(1, lists:split(26, UUID)), - N = gen_until_pref_change(Prefix,0), - etap:diag("N is: ~p~n",[N]), - etap:is( - N >= 5000 andalso N =< 11000, - true, - "should roll over every so often." - ) - end, - run_test([default_config(), seq_alg_config()], TestRollOver). - -test_unique(0, _) -> - true; -test_unique(N, UUID) -> - case couch_uuids:new() of - UUID -> - etap:diag("N: ~p~n", [N]), - false; - Else -> test_unique(N-1, Else) - end. - -get_prefix(UUID) -> - element(1, lists:split(26, binary_to_list(UUID))). - -gen_until_pref_change(_, Count) when Count > 8251 -> - Count; -gen_until_pref_change(Prefix, N) -> - case get_prefix(couch_uuids:new()) of - Prefix -> gen_until_pref_change(Prefix, N+1); - _ -> N - end. -- cgit v1.2.3