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Posted to commits@couchdb.apache.org by ch...@apache.org on 2014/08/26 22:59:53 UTC
[02/50] [abbrv] couch commit: updated refs/heads/1963-eunit-bigcouch
to 0efdc71
Port 041-uuid.t etap test suite to eunit
Config files are removed in favor of using couch_config API instead.
Project: http://git-wip-us.apache.org/repos/asf/couchdb-couch/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb-couch/commit/bf86b7da
Tree: http://git-wip-us.apache.org/repos/asf/couchdb-couch/tree/bf86b7da
Diff: http://git-wip-us.apache.org/repos/asf/couchdb-couch/diff/bf86b7da
Branch: refs/heads/1963-eunit-bigcouch
Commit: bf86b7da92ef67bba2920a2b73bf17683b784696
Parents: 6352b7f
Author: Alexander Shorin <kx...@apache.org>
Authored: Sat May 17 04:23:25 2014 +0400
Committer: Russell Branca <ch...@apache.org>
Committed: Tue Aug 26 13:59:29 2014 -0700
----------------------------------------------------------------------
test/couchdb/couch_uuids_tests.erl | 161 ++++++++++++++++++++++++++++++++
1 file changed, 161 insertions(+)
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http://git-wip-us.apache.org/repos/asf/couchdb-couch/blob/bf86b7da/test/couchdb/couch_uuids_tests.erl
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diff --git a/test/couchdb/couch_uuids_tests.erl b/test/couchdb/couch_uuids_tests.erl
new file mode 100644
index 0000000..ea1d034
--- /dev/null
+++ b/test/couchdb/couch_uuids_tests.erl
@@ -0,0 +1,161 @@
+% 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.
+
+-module(couch_uuids_tests).
+
+-include("couch_eunit.hrl").
+
+-define(TIMEOUT_S, 20).
+
+
+setup() ->
+ {ok, Pid} = couch_config:start_link(?CONFIG_CHAIN),
+ erlang:monitor(process, Pid),
+ couch_uuids:start(),
+ Pid.
+
+setup(Opts) ->
+ Pid = setup(),
+ lists:foreach(
+ fun({Option, Value}) ->
+ couch_config:set("uuids", Option, Value, false)
+ end, Opts),
+ Pid.
+
+teardown(Pid) ->
+ couch_uuids:stop(),
+ couch_config:stop(),
+ receive
+ {'DOWN', _, _, Pid, _} -> ok
+ after
+ 1000 -> throw({timeout_error, config_stop})
+ end.
+
+teardown(_, Pid) ->
+ teardown(Pid).
+
+
+default_test_() ->
+ {
+ "Default UUID algorithm",
+ {
+ setup,
+ fun setup/0, fun teardown/1,
+ fun should_be_unique/1
+ }
+ }.
+
+sequential_test_() ->
+ Opts = [{"algorithm", "sequential"}],
+ Cases = [
+ fun should_be_unique/2,
+ fun should_increment_monotonically/2,
+ fun should_rollover/2
+ ],
+ {
+ "UUID algorithm: sequential",
+ {
+ foreachx,
+ fun setup/1, fun teardown/2,
+ [{Opts, Fun} || Fun <- Cases]
+ }
+ }.
+
+utc_test_() ->
+ Opts = [{"algorithm", "utc_random"}],
+ Cases = [
+ fun should_be_unique/2,
+ fun should_increment_monotonically/2
+ ],
+ {
+ "UUID algorithm: utc_random",
+ {
+ foreachx,
+ fun setup/1, fun teardown/2,
+ [{Opts, Fun} || Fun <- Cases]
+ }
+ }.
+
+utc_id_suffix_test_() ->
+ Opts = [{"algorithm", "utc_id"}, {"utc_id_suffix", "bozo"}],
+ Cases = [
+ fun should_be_unique/2,
+ fun should_increment_monotonically/2,
+ fun should_preserve_suffix/2
+ ],
+ {
+ "UUID algorithm: utc_id",
+ {
+ foreachx,
+ fun setup/1, fun teardown/2,
+ [{Opts, Fun} || Fun <- Cases]
+ }
+ }.
+
+
+should_be_unique() ->
+ %% this one may really runs for too long on slow hosts
+ {timeout, ?TIMEOUT_S, ?_assert(test_unique(10000, [couch_uuids:new()]))}.
+should_be_unique(_) ->
+ should_be_unique().
+should_be_unique(_, _) ->
+ should_be_unique().
+
+should_increment_monotonically(_, _) ->
+ ?_assert(couch_uuids:new() < couch_uuids:new()).
+
+should_rollover(_, _) ->
+ ?_test(begin
+ UUID = binary_to_list(couch_uuids:new()),
+ Prefix = element(1, lists:split(26, UUID)),
+ N = gen_until_pref_change(Prefix, 0),
+ ?assert(N >= 5000 andalso N =< 11000)
+ end).
+
+should_preserve_suffix(_, _) ->
+ ?_test(begin
+ UUID = binary_to_list(couch_uuids:new()),
+ Suffix = get_suffix(UUID),
+ ?assert(test_same_suffix(10000, Suffix))
+ end).
+
+
+test_unique(0, _) ->
+ true;
+test_unique(N, UUIDs) ->
+ UUID = couch_uuids:new(),
+ ?assertNot(lists:member(UUID, UUIDs)),
+ test_unique(N - 1, [UUID| UUIDs]).
+
+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.
+
+get_suffix(UUID) when is_binary(UUID) ->
+ get_suffix(binary_to_list(UUID));
+get_suffix(UUID) ->
+ element(2, lists:split(14, UUID)).
+
+test_same_suffix(0, _) ->
+ true;
+test_same_suffix(N, Suffix) ->
+ case get_suffix(couch_uuids:new()) of
+ Suffix -> test_same_suffix(N - 1, Suffix);
+ _ -> false
+ end.