mongodb/jstests/sharding/SERVER-7379.js

var st = new ShardingTest({ shards: 2 });

st.adminCommand({ enablesharding: "test" });
st.ensurePrimaryShard('test', 'shard0001');
st.adminCommand({ shardcollection: "test.offerChange", key: { "categoryId": 1, "store": 1, "_id": 1 } });

var db = st.s.getDB('test');
var offerChange = db.getCollection('offerChange');
var testDoc = { "_id": 123, "categoryId": 9881, "store": "NEW" }

offerChange.remove({}, false);
offerChange.insert(testDoc)
assert.writeError(offerChange.update({ _id: 123 }, { $set: { store: "NEWEST" } }, true, false));
var doc = offerChange.findOne();
assert(friendlyEqual(doc, testDoc), 'doc changed: ' + tojson(doc));

offerChange.remove({}, false);
offerChange.insert(testDoc)
assert.writeError(offerChange.update({ _id: 123 },
                                     { _id: 123, categoryId: 9881, store: "NEWEST" },
                                     true, false));
doc = offerChange.findOne();
assert(friendlyEqual(doc, testDoc), 'doc changed: ' + tojson(doc));

offerChange.remove({}, false);
offerChange.insert(testDoc)
assert.writeError(offerChange.save({ "_id": 123, "categoryId": 9881, "store": "NEWEST" }));
doc = offerChange.findOne();
assert(friendlyEqual(doc, testDoc), 'doc changed: ' + tojson(doc));

offerChange.remove({}, false);
offerChange.insert(testDoc);
assert.writeError(offerChange.update({ _id: 123, store: "NEW" },
                                     { _id: 123, categoryId: 9881, store: "NEWEST" },
                                     true, false));
doc = offerChange.findOne();
assert(friendlyEqual(doc, testDoc), 'doc changed: ' + tojson(doc));

offerChange.remove({}, false);
offerChange.insert(testDoc);
assert.writeError(offerChange.update({ _id: 123, categoryId: 9881 },
                                     { _id: 123, categoryId: 9881, store: "NEWEST" },
                                     true, false));
doc = offerChange.findOne();
assert(friendlyEqual(doc, testDoc), 'doc changed: ' + tojson(doc));

st.stop();