// tests to make sure that the new _id is returned after the insert in the shell var l; t = db.upsert1; t.drop(); // make sure the new _id is returned when $mods are used l = t.update( { x : 1 } , { $inc : { y : 1 } } , true ); assert( l.getUpsertedId() , "A1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id.str , t.findOne()._id.str , "A2" ); // make sure the new _id is returned on a replacement (no $mod in update) l = t.update( { x : 2 } , { x : 2 , y : 3 } , true ); assert( l.getUpsertedId() , "B1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id.str , t.findOne( { x : 2 } )._id.str , "B2" ); assert.eq( 2 , t.find().count() , "B3" ); // use the _id from the query for the insert l = t.update({_id:3}, {$set: {a:'123'}}, true) assert( l.getUpsertedId() , "C1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id , 3 , "C2 - " + tojson(l) ); // test with an embedded doc for the _id field l = t.update({_id:{a:1}}, {$set: {a:123}}, true) assert( l.getUpsertedId() , "D1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id , {a:1} , "D2 - " + tojson(l) ); // test with a range query l = t.update({_id: {$gt:100}}, {$set: {a:123}}, true) assert( l.getUpsertedId() , "E1 - " + tojson(l) ); assert.neq( l.getUpsertedId()._id , 100 , "E2 - " + tojson(l) ); // test with an _id query l = t.update({_id: 1233}, {$set: {a:123}}, true) assert( l.getUpsertedId() , "F1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id , 1233 , "F2 - " + tojson(l) ); // test with an embedded _id query l = t.update({_id: {a:1, b:2}}, {$set: {a:123}}, true) assert( l.getUpsertedId() , "G1 - " + tojson(l) ); assert.eq( l.getUpsertedId()._id , {a:1, b:2} , "G2 - " + tojson(l) ); // test with no _id inserted db.no_id.drop(); db.createCollection("no_id", {autoIndexId:false}) l = db.no_id.update({foo:1}, {$set:{a:1}}, true) assert( l.getUpsertedId() , "H1 - " + tojson(l) ); assert( !l.hasWriteError(), "H1.5 No error expected - " + tojson(l) ) assert.eq( 0, db.no_id.getIndexes().length, "H2" ); assert.eq( 1, db.no_id.count(), "H3" ); var newDoc = db.no_id.findOne(); delete newDoc["_id"]; assert.eq( { foo : 1, a : 1 }, newDoc, "H4" );