// compact.js

var mydb = db.getSiblingDB('compact');
t = mydb.compacttest;
t.drop();

// Assert that you can't compact a capped collection in MMAP.
assert.commandWorked(mydb.createCollection(t.getName(), {size: 4096, capped: true}));
assert.commandFailedWithCode(t.runCommand('compact'), ErrorCodes.CommandNotSupported);
t.drop();  // uncap the collection.

t.insert({x: 3});
t.insert({x: 3});
t.insert({x: 5});
t.insert({x: 4, z: 2, k: 'aaa'});
t.insert({x: 4, z: 2, k: 'aaa'});
t.insert({x: 4, z: 2, k: 'aaa'});
t.insert({x: 4, z: 2, k: 'aaa'});
t.insert({x: 4, z: 2, k: 'aaa'});
t.insert({x: 4, z: 2, k: 'aaa'});
t.ensureIndex({x: 1});

print("1");

var res = mydb.runCommand({compact: 'compacttest', dev: true, force: true});
printjson(res);
assert(res.ok);
assert(t.count() == 9);
var v = t.validate(true);
assert(v.ok);
assert(v.extentCount == 1);
assert(v.deletedCount == 1);
assert(t.getIndexes().length == 2);
var ssize = t.stats().storageSize;

print("2");
res = mydb.runCommand({compact: 'compacttest', dev: true, paddingBytes: 1000, force: true});
assert(res.ok);
assert(t.count() == 9);
var v = t.validate(true);
assert(v.ok);
assert(
    t.stats().storageSize > ssize,
    "expected more storage given padding is higher. however it rounds off so if something changed this could be");
// printjson(t.stats());

print("z");

t.insert({x: 4, z: 2, k: {a: "", b: ""}});
t.insert({x: 4, z: 2, k: {a: "", b: ""}});
t.insert({x: 4, z: 2, k: {a: "", b: ""}});
t.insert({x: 4, z: 2, k: {a: "", b: ""}});
t.insert({x: 4, z: null, k: {f: "", b: ""}});
t.insert({x: 4, z: null, k: {c: ""}});
t.insert({x: 4, z: null, k: {h: ""}});
t.insert({x: 4, z: null});
t.insert({x: 4, z: 3});
t.insert({x: 4, z: 2, k: {a: "", b: ""}});
t.insert({x: 4, z: null, k: {c: ""}});
t.insert({x: 4, z: null, k: {c: ""}});
t.insert({x: 4, z: 3, k: {c: ""}});

t.ensureIndex({z: 1, k: 1});
// t.ensureIndex({ z: 1, k: 1 }, { unique: true });
// t.ensureIndex({ z: 1, k: 1 }, { dropDups: true, unique:true });

res = mydb.runCommand({compact: 'compacttest', dev: true, paddingFactor: 1.2, force: true});
printjson(res);
assert(res.ok);
assert(t.count() > 13);
var v = t.validate(true);
assert(v.ok);

print("3");

// works on an empty collection?
t.remove({});
assert(mydb.runCommand({compact: 'compacttest', dev: true, force: true}).ok);
assert(t.count() == 0);
v = t.validate(true);
assert(v.ok);
assert(v.extentCount == 1);
assert(t.getIndexes().length == 3);