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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.
+
+// Do some edit conflict detection tests
+couchTests.conflicts = function(debug) {
+ var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
+ db.deleteDb();
+ db.createDb();
+ if (debug) debugger;
+
+ // create a doc and save
+ var doc = {_id:"foo",a:1,b:1};
+ T(db.save(doc).ok);
+
+ // reopen
+ var doc2 = db.open(doc._id);
+
+ // ensure the revisions are the same
+ T(doc._id == doc2._id && doc._rev == doc2._rev);
+
+ // edit the documents.
+ doc.a = 2;
+ doc2.a = 3;
+
+ // save one document
+ T(db.save(doc).ok);
+
+ // save the other document
+ try {
+ db.save(doc2); // this should generate a conflict exception
+ T("no save conflict 1" && false); // we shouldn't hit here
+ } catch (e) {
+ T(e.error == "conflict");
+ }
+
+ var changes = db.changes();
+
+ T( changes.results.length == 1)
+
+ // Now clear out the _rev member and save. This indicates this document is
+ // new, not based on an existing revision.
+ doc2._rev = undefined;
+ try {
+ db.save(doc2); // this should generate a conflict exception
+ T("no save conflict 2" && false); // we shouldn't hit here
+ } catch (e) {
+ T(e.error == "conflict");
+ }
+
+ // Now delete the document from the database
+ T(db.deleteDoc(doc).ok);
+
+ T(db.save(doc2).ok); // we can save a new document over a deletion without
+ // knowing the deletion rev.
+};