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Posted to commits@couchdb.apache.org by ch...@apache.org on 2014/09/05 04:29:50 UTC
[11/50] [abbrv] couch commit: updated refs/heads/1963-eunit-bigcouch
to 2b2f129
Port 100-ref-counter.t etap test suite to eunit
Project: http://git-wip-us.apache.org/repos/asf/couchdb-couch/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb-couch/commit/6b890cd3
Tree: http://git-wip-us.apache.org/repos/asf/couchdb-couch/tree/6b890cd3
Diff: http://git-wip-us.apache.org/repos/asf/couchdb-couch/diff/6b890cd3
Branch: refs/heads/1963-eunit-bigcouch
Commit: 6b890cd3b8f44c40341be12f407d951ff797987c
Parents: 72d547f
Author: Alexander Shorin <kx...@apache.org>
Authored: Mon May 26 20:59:45 2014 +0400
Committer: Russell Branca <ch...@apache.org>
Committed: Thu Sep 4 14:37:31 2014 -0700
----------------------------------------------------------------------
test/couchdb/couch_ref_counter_tests.erl | 107 ++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
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http://git-wip-us.apache.org/repos/asf/couchdb-couch/blob/6b890cd3/test/couchdb/couch_ref_counter_tests.erl
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diff --git a/test/couchdb/couch_ref_counter_tests.erl b/test/couchdb/couch_ref_counter_tests.erl
new file mode 100644
index 0000000..b7e97b4
--- /dev/null
+++ b/test/couchdb/couch_ref_counter_tests.erl
@@ -0,0 +1,107 @@
+% 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_ref_counter_tests).
+
+-include("couch_eunit.hrl").
+-include_lib("couchdb/couch_db.hrl").
+
+-define(TIMEOUT, 1000).
+
+
+setup() ->
+ {ok, RefCtr} = couch_ref_counter:start([]),
+ ChildPid = spawn(fun() -> loop() end),
+ {RefCtr, ChildPid}.
+
+teardown({_, ChildPid}) ->
+ erlang:monitor(process, ChildPid),
+ ChildPid ! close,
+ wait().
+
+
+couch_ref_counter_test_() ->
+ {
+ "CouchDB reference counter tests",
+ {
+ foreach,
+ fun setup/0, fun teardown/1,
+ [
+ fun should_initialize_with_calling_process_as_referrer/1,
+ fun should_ignore_unknown_pid/1,
+ fun should_increment_counter_on_pid_add/1,
+ fun should_not_increase_counter_on_readding_same_pid/1,
+ fun should_drop_ref_for_double_added_pid/1,
+ fun should_decrement_counter_on_pid_drop/1,
+ fun should_add_after_drop/1,
+ fun should_decrement_counter_on_process_exit/1
+
+ ]
+ }
+ }.
+
+
+should_initialize_with_calling_process_as_referrer({RefCtr, _}) ->
+ ?_assertEqual(1, couch_ref_counter:count(RefCtr)).
+
+should_ignore_unknown_pid({RefCtr, ChildPid}) ->
+ ?_assertEqual(ok, couch_ref_counter:drop(RefCtr, ChildPid)).
+
+should_increment_counter_on_pid_add({RefCtr, ChildPid}) ->
+ couch_ref_counter:add(RefCtr, ChildPid),
+ ?_assertEqual(2, couch_ref_counter:count(RefCtr)).
+
+should_not_increase_counter_on_readding_same_pid({RefCtr, ChildPid}) ->
+ couch_ref_counter:add(RefCtr, ChildPid),
+ couch_ref_counter:add(RefCtr, ChildPid),
+ ?_assertEqual(2, couch_ref_counter:count(RefCtr)).
+
+should_drop_ref_for_double_added_pid({RefCtr, ChildPid}) ->
+ couch_ref_counter:add(RefCtr, ChildPid),
+ couch_ref_counter:add(RefCtr, ChildPid),
+ couch_ref_counter:drop(RefCtr, ChildPid),
+ ?_assertEqual(2, couch_ref_counter:count(RefCtr)).
+
+should_decrement_counter_on_pid_drop({RefCtr, ChildPid}) ->
+ couch_ref_counter:add(RefCtr, ChildPid),
+ couch_ref_counter:drop(RefCtr, ChildPid),
+ ?_assertEqual(1, couch_ref_counter:count(RefCtr)).
+
+should_add_after_drop({RefCtr, ChildPid}) ->
+ couch_ref_counter:add(RefCtr, ChildPid),
+ couch_ref_counter:drop(RefCtr, ChildPid),
+ couch_ref_counter:add(RefCtr, ChildPid),
+ ?_assertEqual(2, couch_ref_counter:count(RefCtr)).
+
+should_decrement_counter_on_process_exit({RefCtr, ChildPid}) ->
+ ?_assertEqual(1,
+ begin
+ couch_ref_counter:add(RefCtr, ChildPid),
+ erlang:monitor(process, ChildPid),
+ ChildPid ! close,
+ wait(),
+ couch_ref_counter:count(RefCtr)
+ end).
+
+
+loop() ->
+ receive
+ close -> ok
+ end.
+
+wait() ->
+ receive
+ {'DOWN', _, _, _, _} ->
+ ok
+ after ?TIMEOUT ->
+ throw(timeout_error)
+ end.