summaryrefslogtreecommitdiff
path: root/rel/overlay/var/share/www/script/test/reduce.js
diff options
context:
space:
mode:
Diffstat (limited to 'rel/overlay/var/share/www/script/test/reduce.js')
-rw-r--r--rel/overlay/var/share/www/script/test/reduce.js169
1 files changed, 0 insertions, 169 deletions
diff --git a/rel/overlay/var/share/www/script/test/reduce.js b/rel/overlay/var/share/www/script/test/reduce.js
deleted file mode 100644
index 9c80fa7f..00000000
--- a/rel/overlay/var/share/www/script/test/reduce.js
+++ /dev/null
@@ -1,169 +0,0 @@
-// 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.reduce = function(debug) {
- var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
- db.deleteDb();
- db.createDb();
- if (debug) debugger;
- var numDocs = 500
- var docs = makeDocs(1,numDocs + 1);
- db.bulkSave(docs);
- var summate = function(N) {return (N+1)*N/2;};
-
- var map = function (doc) {
- emit(doc.integer, doc.integer);
- emit(doc.integer, doc.integer)};
- var reduce = function (keys, values) { return sum(values); };
- var result = db.query(map, reduce);
- T(result.rows[0].value == 2*summate(numDocs));
-
- result = db.query(map, reduce, {startkey: 4, endkey: 4});
- T(result.rows[0].value == 8);
-
- result = db.query(map, reduce, {startkey: 4, endkey: 5});
- T(result.rows[0].value == 18);
-
- result = db.query(map, reduce, {startkey: 4, endkey: 6});
- T(result.rows[0].value == 30);
-
- result = db.query(map, reduce, {group:true, limit:3});
- T(result.rows[0].value == 2);
- T(result.rows[1].value == 4);
- T(result.rows[2].value == 6);
-
- for(var i=1; i<numDocs/2; i+=30) {
- result = db.query(map, reduce, {startkey: i, endkey: numDocs - i});
- T(result.rows[0].value == 2*(summate(numDocs-i) - summate(i-1)));
- }
-
- db.deleteDb();
- db.createDb();
-
- for(var i=1; i <= 5; i++) {
-
- for(var j=0; j < 10; j++) {
- // these docs are in the order of the keys collation, for clarity
- var docs = [];
- docs.push({keys:["a"]});
- docs.push({keys:["a"]});
- docs.push({keys:["a", "b"]});
- docs.push({keys:["a", "b"]});
- docs.push({keys:["a", "b", "c"]});
- docs.push({keys:["a", "b", "d"]});
- docs.push({keys:["a", "c", "d"]});
- docs.push({keys:["d"]});
- docs.push({keys:["d", "a"]});
- docs.push({keys:["d", "b"]});
- docs.push({keys:["d", "c"]});
- db.bulkSave(docs);
- T(db.info().doc_count == ((i - 1) * 10 * 11) + ((j + 1) * 11));
- }
-
- map = function (doc) {emit(doc.keys, 1)};
- reduce = function (keys, values) { return sum(values); };
-
- var results = db.query(map, reduce, {group:true});
-
- //group by exact key match
- T(equals(results.rows[0], {key:["a"],value:20*i}));
- T(equals(results.rows[1], {key:["a","b"],value:20*i}));
- T(equals(results.rows[2], {key:["a", "b", "c"],value:10*i}));
- T(equals(results.rows[3], {key:["a", "b", "d"],value:10*i}));
-
- // test to make sure group reduce and limit params provide valid json
- var results = db.query(map, reduce, {group: true, limit: 2});
- T(equals(results.rows[0], {key: ["a"], value: 20*i}));
- T(equals(results.rows.length, 2));
-
- //group by the first element in the key array
- var results = db.query(map, reduce, {group_level:1});
- T(equals(results.rows[0], {key:["a"],value:70*i}));
- T(equals(results.rows[1], {key:["d"],value:40*i}));
-
- //group by the first 2 elements in the key array
- var results = db.query(map, reduce, {group_level:2});
- T(equals(results.rows[0], {key:["a"],value:20*i}));
- T(equals(results.rows[1], {key:["a","b"],value:40*i}));
- T(equals(results.rows[2], {key:["a","c"],value:10*i}));
- T(equals(results.rows[3], {key:["d"],value:10*i}));
- T(equals(results.rows[4], {key:["d","a"],value:10*i}));
- T(equals(results.rows[5], {key:["d","b"],value:10*i}));
- T(equals(results.rows[6], {key:["d","c"],value:10*i}));
- }
-
- // now test out more complex reductions that need to use the combine option.
-
- db.deleteDb();
- db.createDb();
-
-
- var map = function (doc) {emit(doc.val, doc.val)};
- var reduceCombine = function (keys, values, rereduce) {
- // This computes the standard deviation of the mapped results
- var stdDeviation=0.0;
- var count=0;
- var total=0.0;
- var sqrTotal=0.0;
-
- if (!rereduce) {
- // This is the reduce phase, we are reducing over emitted values from
- // the map functions.
- for(var i in values) {
- total = total + values[i];
- sqrTotal = sqrTotal + (values[i] * values[i]);
- }
- count = values.length;
- }
- else {
- // This is the rereduce phase, we are re-reducing previosuly
- // reduced values.
- for(var i in values) {
- count = count + values[i].count;
- total = total + values[i].total;
- sqrTotal = sqrTotal + values[i].sqrTotal;
- }
- }
-
- var variance = (sqrTotal - ((total * total)/count)) / count;
- stdDeviation = Math.sqrt(variance);
-
- // the reduce result. It contains enough information to be rereduced
- // with other reduce results.
- return {"stdDeviation":stdDeviation,"count":count,
- "total":total,"sqrTotal":sqrTotal};
- };
-
- // Save a bunch a docs.
-
- for(var i=0; i < 10; i++) {
- var docs = [];
- docs.push({val:10});
- docs.push({val:20});
- docs.push({val:30});
- docs.push({val:40});
- docs.push({val:50});
- docs.push({val:60});
- docs.push({val:70});
- docs.push({val:80});
- docs.push({val:90});
- docs.push({val:100});
- db.bulkSave(docs);
- }
-
- var results = db.query(map, reduceCombine);
-
- var difference = results.rows[0].value.stdDeviation - 28.722813232690143;
- // account for floating point rounding error
- T(Math.abs(difference) < 0.0000000001);
-
-};