"use strict"
// check that shell writeconcern work correctly
// 1.) tests that it can be set on each level and is inherited
// 2.) tests that each operation (update/insert/remove/save) take and ensure a write concern

var collA = db.shell_wc_a;
var collB = db.shell_wc_b;
collA.drop()
collB.drop()

// test inheritance
db.setWriteConcern({w:1})
assert.eq(1, db.getWriteConcern().toJSON().w)
assert.eq(1, collB.getWriteConcern().toJSON().w)

collA.setWriteConcern({w:2})
assert.eq(2, collA.getWriteConcern().toJSON().w)
collA.unsetWriteConcern()
assert.eq(1, collA.getWriteConcern().toJSON().w)

db.unsetWriteConcern()
assert.eq(undefined, collA.getWriteConcern())
assert.eq(undefined, collB.getWriteConcern())
assert.eq(undefined, db.getWriteConcern())

// test methods, by generating an error
var res = assert.writeOK(collA.save({_id:1}, {writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(1, res.n, tojson(res));
    assert.eq(1, res.upserted, tojson(res));
} else {
    assert.eq(1, res.nUpserted, tojson(res));
}

var res =  assert.writeOK(collA.update({_id:1}, {_id:1}, {writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(1, res.n, tojson(res));
} else {
    assert.eq(1, res.nMatched, tojson(res));
}
var res =  assert.writeOK(collA.update({_id:1}, {_id:1}, {writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(1, res.n, tojson(res));
} else {
    assert.eq(1, res.nMatched, tojson(res));
}

var res = assert.writeOK(collA.insert({_id:2}, {writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(0, res.n, tojson(res));
} else {
    assert.eq(1, res.nInserted, tojson(res));
}

var res = assert.writeOK(collA.remove({_id:3}, {writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(0, res.n, tojson(res));
} else {
    assert.eq(0, res.nRemoved, tojson(res));
}

var res = assert.writeOK(collA.remove({}, {justOne:true, writeConcern:{w:1}}));
if (!db.getMongo().useWriteCommands() ) {
    assert.eq(1, res.n, tojson(res));
} else {
    assert.eq(1, res.nRemoved, tojson(res));
}

assert.writeError(collA.insert([{_id:1}, {_id:1}], {ordered:true, writeConcern:{w:1}}));
assert.writeError(collA.insert([{_id:1}, {_id:1}], {ordered:false, writeConcern:{w:1}}));