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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.rev_stemming = function(debug) {
var db = new CouchDB("test_suite_db_a");
db.deleteDb();
db.createDb();
var dbB = new CouchDB("test_suite_db_b");
dbB.deleteDb();
dbB.createDb();
if (debug) debugger;
var newLimit = 5;
T(db.getDbProperty("_revs_limit") == 1000);
var doc = {_id:"foo",foo:0}
for( var i=0; i < newLimit + 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
var doc0 = db.open("foo", {revs:true});
T(doc0._revisions.ids.length == newLimit + 1);
var docBar = {_id:"bar",foo:0}
for( var i=0; i < newLimit + 1; i++) {
docBar.foo++;
T(db.save(docBar).ok);
}
T(db.open("bar", {revs:true})._revisions.ids.length == newLimit + 1);
T(db.setDbProperty("_revs_limit", newLimit).ok);
for( var i=0; i < newLimit + 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
doc0 = db.open("foo", {revs:true});
T(doc0._revisions.ids.length == newLimit);
// If you replicate after you make more edits than the limit, you'll
// cause a spurious edit conflict.
CouchDB.replicate("test_suite_db_a", "test_suite_db_b");
var docB1 = dbB.open("foo",{conflicts:true})
T(docB1._conflicts == null);
for( var i=0; i < newLimit - 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
// one less edit than limit, no conflict
CouchDB.replicate("test_suite_db_a", "test_suite_db_b");
var docB1 = dbB.open("foo",{conflicts:true})
T(docB1._conflicts == null);
//now we hit the limit
for( var i=0; i < newLimit; i++) {
doc.foo++;
T(db.save(doc).ok);
}
CouchDB.replicate("test_suite_db_a", "test_suite_db_b");
var docB2 = dbB.open("foo",{conflicts:true});
// we have a conflict, but the previous replicated rev is always the losing
// conflict
T(docB2._conflicts[0] == docB1._rev)
// We having already updated bar before setting the limit, so it's still got
// a long rev history. compact to stem the revs.
T(db.open("bar", {revs:true})._revisions.ids.length == newLimit + 1);
T(db.compact().ok);
// compaction isn't instantaneous, loop until done
while (db.info().compact_running) {};
T(db.open("bar", {revs:true})._revisions.ids.length == newLimit);
};
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