#!/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. %% XXX: Figure out how to -include("couch_db.hrl") -record(doc, {id= <<"">>, revs={0, []}, body={[]}, attachments=[], deleted=false, meta=[]}). -record(http_db, { url, auth = [], resource = "", headers = [ {"User-Agent", "CouchDB/"++couch:version()}, {"Accept", "application/json"}, {"Accept-Encoding", "gzip"} ], qs = [], method = get, body = nil, options = [ {response_format,binary}, {inactivity_timeout, 30000} ], retries = 10, pause = 1, conn = nil }). config_files() -> lists:map(fun test_util:build_file/1, [ "etc/couchdb/default_dev.ini", "etc/couchdb/local_dev.ini" ]). main(_) -> test_util:init_code_path(), etap:plan(13), 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() -> couch_server_sup:start_link(config_files()), ibrowse:start(), crypto:start(), couch_server:delete(<<"etap-test-db">>, []), {ok, Db1} = couch_db:create(<<"etap-test-db">>, []), test_all(local), couch_db:close(Db1), couch_server:delete(<<"etap-test-db">>, []), couch_server:delete(<<"etap-test-db">>, []), {ok, Db2} = couch_db:create(<<"etap-test-db">>, []), test_all(remote), test_remote_only(), couch_db:close(Db2), couch_server:delete(<<"etap-test-db">>, []), ok. test_all(Type) -> test_unchanged_db(Type), test_simple_change(Type), test_since_parameter(Type), test_continuous_parameter(Type), test_conflicts(Type), test_deleted_conflicts(Type). test_remote_only() -> test_chunk_reassembly(remote). test_unchanged_db(Type) -> {ok, Pid} = start_changes_feed(Type, 0, false), etap:is( couch_rep_changes_feed:next(Pid), complete, io_lib:format( "(~p) changes feed for unchanged DB is automatically complete", [Type]) ). test_simple_change(Type) -> Expect = generate_change(), {ok, Pid} = start_changes_feed(Type, 0, false), etap:is( {couch_rep_changes_feed:next(Pid), couch_rep_changes_feed:next(Pid)}, {[Expect], complete}, io_lib:format("(~p) change one document, get one row", [Type]) ). test_since_parameter(Type) -> {ok, Pid} = start_changes_feed(Type, get_update_seq(), false), etap:is( couch_rep_changes_feed:next(Pid), complete, io_lib:format( "(~p) since query-string parameter allows us to skip changes", [Type]) ). test_continuous_parameter(Type) -> {ok, Pid} = start_changes_feed(Type, get_update_seq(), true), % make the changes_feed request before the next update Self = self(), spawn(fun() -> Change = couch_rep_changes_feed:next(Pid), Self ! {actual, Change} end), Expect = generate_change(), etap:is( receive {actual, Actual} -> Actual end, [Expect], io_lib:format( "(~p) feed=continuous query-string parameter picks up new changes", [Type]) ), ok = couch_rep_changes_feed:stop(Pid). test_conflicts(Type) -> Since = get_update_seq(), Expect = generate_conflict(), {ok, Pid} = start_changes_feed(Type, Since, false), etap:is( {couch_rep_changes_feed:next(Pid), couch_rep_changes_feed:next(Pid)}, {[Expect], complete}, io_lib:format("(~p) conflict revisions show up in feed", [Type]) ). test_deleted_conflicts(Type) -> Since = get_update_seq(), {ExpectProps} = generate_conflict(), %% delete the conflict revision Id = couch_util:get_value(<<"id">>, ExpectProps), [Win, {[{<<"rev">>, Lose}]}] = couch_util:get_value(<<"changes">>, ExpectProps), Doc = couch_doc:from_json_obj({[ {<<"_id">>, Id}, {<<"_rev">>, Lose}, {<<"_deleted">>, true} ]}), Db = get_db(), {ok, Rev} = couch_db:update_doc(Db, Doc, [full_commit]), couch_db:close(Db), Expect = {[ {<<"seq">>, get_update_seq()}, {<<"id">>, Id}, {<<"changes">>, [Win, {[{<<"rev">>, couch_doc:rev_to_str(Rev)}]}]} ]}, {ok, Pid} = start_changes_feed(Type, Since, false), etap:is( {couch_rep_changes_feed:next(Pid), couch_rep_changes_feed:next(Pid)}, {[Expect], complete}, io_lib:format("(~p) deleted conflict revisions show up in feed", [Type]) ). test_chunk_reassembly(Type) -> Since = get_update_seq(), Expect = [generate_change() || _I <- lists:seq(1,30)], {ok, Pid} = start_changes_feed(Type, Since, false), etap:is( get_all_changes(Pid, []), Expect, io_lib:format("(~p) reassembles chunks split across TCP frames", [Type]) ). get_all_changes(Pid, Acc) -> case couch_rep_changes_feed:next(Pid) of complete -> lists:flatten(lists:reverse(Acc)); Else -> get_all_changes(Pid, [Else|Acc]) end. generate_change() -> generate_change(couch_uuids:random()). generate_change(Id) -> generate_change(Id, {[]}). generate_change(Id, EJson) -> Doc = couch_doc:from_json_obj(EJson), Db = get_db(), {ok, Rev} = couch_db:update_doc(Db, Doc#doc{id = Id}, [full_commit]), couch_db:close(Db), {[ {<<"seq">>, get_update_seq()}, {<<"id">>, Id}, {<<"changes">>, [{[{<<"rev">>, couch_doc:rev_to_str(Rev)}]}]} ]}. generate_conflict() -> Id = couch_uuids:random(), Db = get_db(), Doc1 = (couch_doc:from_json_obj({[<<"foo">>, <<"bar">>]}))#doc{id = Id}, Doc2 = (couch_doc:from_json_obj({[<<"foo">>, <<"baz">>]}))#doc{id = Id}, {ok, Rev1} = couch_db:update_doc(Db, Doc1, [full_commit]), {ok, Rev2} = couch_db:update_doc(Db, Doc2, [full_commit, all_or_nothing]), %% relies on undocumented CouchDB conflict winner algo and revision sorting! RevList = [{[{<<"rev">>, couch_doc:rev_to_str(R)}]} || R <- lists:sort(fun(A,B) -> B>, get_update_seq()}, {<<"id">>, Id}, {<<"changes">>, RevList} ]}. get_db() -> {ok, Db} = couch_db:open(<<"etap-test-db">>, []), Db. get_dbname(local) -> "etap-test-db"; get_dbname(remote) -> "http://127.0.0.1:5984/etap-test-db/". get_update_seq() -> Db = get_db(), Seq = couch_db:get_update_seq(Db), couch_db:close(Db), Seq. start_changes_feed(local, Since, Continuous) -> Props = [{<<"continuous">>, Continuous}], couch_rep_changes_feed:start_link(self(), get_db(), Since, Props); start_changes_feed(remote, Since, Continuous) -> Props = [{<<"continuous">>, Continuous}], Db = #http_db{url = get_dbname(remote)}, couch_rep_changes_feed:start_link(self(), Db, Since, Props).