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// 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.
couchTests.erlang_views = function(debug) {
var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
db.deleteDb();
db.createDb();
if (debug) debugger;
run_on_modified_server(
[{section: "native_query_servers",
key: "erlang",
value: "{couch_native_process, start_link, []}"}],
function() {
// Note we just do some basic 'smoke tests' here - the
// test/query_server_spec.rb tests have more comprehensive tests
var doc = {_id: "1", integer: 1, string: "str1", array: [1, 2, 3]};
T(db.save(doc).ok);
var mfun = 'fun({Doc}) -> ' +
' K = couch_util:get_value(<<"integer">>, Doc, null), ' +
' V = couch_util:get_value(<<"string">>, Doc, null), ' +
' Emit(K, V) ' +
'end.';
// emitting a key value that is undefined should result in that row not
// being included in the view results
var results = db.query(mfun, null, null, null, "erlang");
T(results.total_rows == 1);
T(results.rows[0].key == 1);
T(results.rows[0].value == "str1");
// check simple reduction - another doc with same key.
var doc = {_id: "2", integer: 1, string: "str2"};
T(db.save(doc).ok);
rfun = "fun(Keys, Values, ReReduce) -> length(Values) end.";
results = db.query(mfun, rfun, null, null, "erlang");
T(results.rows[0].value == 2);
// simple 'list' tests
var designDoc = {
_id:"_design/erlview",
language: "erlang",
shows: {
simple:
'fun(Doc, {Req}) -> ' +
' {Info} = couch_util:get_value(<<"info">>, Req, {[]}), ' +
' Purged = couch_util:get_value(<<"purge_seq">>, Info, -1), ' +
' Verb = couch_util:get_value(<<"method">>, Req, <<"not_get">>), ' +
' R = list_to_binary(io_lib:format("~b - ~s", [Purged, Verb])), ' +
' {[{<<"code">>, 200}, {<<"headers">>, {[]}}, {<<"body">>, R}]} ' +
'end.'
},
lists: {
simple_list :
'fun(Head, {Req}) -> ' +
' Send(<<"head">>), ' +
' Fun = fun({Row}, _) -> ' +
' Val = couch_util:get_value(<<"value">>, Row, -1), ' +
' Send(list_to_binary(integer_to_list(Val))), ' +
' {ok, nil} ' +
' end, ' +
' {ok, _} = FoldRows(Fun, nil), ' +
' <<"tail">> ' +
'end. '
},
views: {
simple_view : {
map: mfun,
reduce: rfun
}
}
};
T(db.save(designDoc).ok);
var url = "/test_suite_db/_design/erlview/_show/simple/1";
var xhr = CouchDB.request("GET", url);
T(xhr.status == 200, "standard get should be 200");
T(xhr.responseText == "0 - GET");
var url = "/test_suite_db/_design/erlview/_list/simple_list/simple_view";
var xhr = CouchDB.request("GET", url);
T(xhr.status == 200, "standard get should be 200");
T(xhr.responseText == "head2tail");
// Larger dataset
db.deleteDb();
db.createDb();
var words = "foo bar abc def baz xxyz".split(/\s+/);
var docs = [];
for(var i = 0; i < 250; i++) {
var body = [];
for(var j = 0; j < 100; j++) {
body.push({
word: words[j%words.length],
count: j
});
}
docs.push({
"_id": "test-" + i,
"words": body
});
}
T(db.bulkSave(docs).length, 250, "Saved big doc set.");
var mfun = 'fun({Doc}) -> ' +
'Words = couch_util:get_value(<<"words">>, Doc), ' +
'lists:foreach(fun({Word}) -> ' +
'WordString = couch_util:get_value(<<"word">>, Word), ' +
'Count = couch_util:get_value(<<"count">>, Word), ' +
'Emit(WordString , Count) ' +
'end, Words) ' +
'end.';
var rfun = 'fun(Keys, Values, RR) -> length(Values) end.';
var results = db.query(mfun, rfun, null, null, "erlang");
T(results.rows[0].key === null, "Returned a reduced value.");
T(results.rows[0].value > 0, "Reduce value exists.");
});
};
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