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var maxBsonObjectSize = db.isMaster().maxBsonObjectSize;
var docOverhead = Object.bsonsize({ _id: new ObjectId(), x: '' });
var maxStrSize = maxBsonObjectSize - docOverhead;
var maxStr = 'a';
while (maxStr.length < maxStrSize) maxStr += 'a';
var coll = db.max_doc_size;
coll.drop();
var res = db.runCommand({ insert: coll.getName(),
documents: [{ _id: new ObjectId(), x: maxStr }] });
assert(res.ok);
assert.eq(null, res.writeErrors);
coll.drop();
res = db.runCommand({ update: coll.getName(),
ordered: true,
updates: [{ q: { a: 1 },
u: { _id: new ObjectId(), x: maxStr },
upsert: true
}]});
assert(res.ok);
assert.eq(null, res.writeErrors);
coll.drop();
var id = new ObjectId();
coll.insert({ _id: id });
res = db.runCommand({ update: coll.getName(),
ordered: true,
updates: [{ q: { _id: id },
u: { $set: { x: maxStr }}}] });
assert(res.ok);
assert.eq(null, res.writeErrors);
//
// Test documents over the size limit.
//
var overBigStr = maxStr + 'a';
coll.drop();
res = db.runCommand({ insert: coll.getName(),
documents: [{ _id: new ObjectId(), x: overBigStr }] });
assert(res.ok);
assert.neq(null, res.writeErrors);
coll.drop();
res = db.runCommand({ update: coll.getName(),
ordered: true,
updates: [{ q: { a: 1 },
u: { _id: new ObjectId(), x: overBigStr },
upsert: true
}]});
assert(res.ok);
assert.neq(null, res.writeErrors);
coll.drop();
id = new ObjectId();
coll.insert({ _id: id });
res = db.runCommand({ update: coll.getName(),
ordered: true,
updates: [{ q: { _id: id },
u: { $set: { x: overBigStr }}}] });
assert(res.ok);
assert.neq(null, res.writeErrors);
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