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# frozen_string_literal: true
# rubocop:todo all
require 'spec_helper'
describe 'Bulk writes' do
before do
authorized_collection.drop
end
context 'when bulk write is larger than 48MB' do
let(:operations) do
[ { insert_one: { text: 'a' * 1000 * 1000 } } ] * 48
end
it 'succeeds' do
expect do
authorized_collection.bulk_write(operations)
end.not_to raise_error
end
context 'in transaction' do
require_transaction_support
min_server_version "4.4"
it 'succeeds' do
authorized_collection.create
expect do
authorized_collection.client.start_session do |session|
session.with_transaction do
authorized_collection.bulk_write(operations, { session: session })
end
end
end.not_to raise_error
end
end
end
context 'when bulk write needs to be split' do
let(:subscriber) { Mrss::EventSubscriber.new }
let(:max_bson_size) { Mongo::Server::ConnectionBase::DEFAULT_MAX_BSON_OBJECT_SIZE }
let(:insert_events) do
subscriber.command_started_events('insert')
end
let(:failed_events) do
subscriber.failed_events
end
let(:operations) do
[{ insert_one: { text: 'a' * (max_bson_size/2) } }] * 6
end
before do
authorized_client.subscribe(Mongo::Monitoring::COMMAND, subscriber)
authorized_collection.bulk_write(operations)
end
context '3.6+ server' do
min_server_fcv '3.6'
it 'splits the operations' do
# 3.6+ servers can send multiple bulk operations in one message,
# with the whole message being limited to 48m.
expect(insert_events.length).to eq(2)
end
end
context 'pre-3.6 server' do
max_server_version '3.4'
it 'splits the operations' do
# Pre-3.6 servers limit the entire message payload to the size of
# a single document which is 16m. Given our test data this means
# twice as many messages are sent.
expect(insert_events.length).to eq(4)
end
end
it 'does not have a command failed event' do
expect(failed_events).to be_empty
end
end
end
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