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require 'spec_helper'
describe Mongo::Cluster::Topology::Sharded do
let(:address) do
Mongo::Address.new('127.0.0.1:27017')
end
let(:topology) do
described_class.new({}, monitoring)
end
let(:monitoring) do
Mongo::Monitoring.new(monitoring: false)
end
let(:listeners) do
Mongo::Event::Listeners.new
end
let(:cluster) do
double('cluster').tap do |cl|
allow(cl).to receive(:topology).and_return(topology)
allow(cl).to receive(:app_metadata).and_return(app_metadata)
end
end
let(:mongos) do
Mongo::Server.new(address, cluster, monitoring, listeners, TEST_OPTIONS)
end
let(:standalone) do
Mongo::Server.new(address, cluster, monitoring, listeners, TEST_OPTIONS)
end
let(:replica_set) do
Mongo::Server.new(address, cluster, monitoring, listeners, TEST_OPTIONS)
end
let(:mongos_description) do
Mongo::Server::Description.new(address, { 'msg' => 'isdbgrid' })
end
let(:standalone_description) do
Mongo::Server::Description.new(address, { 'ismaster' => true })
end
let(:replica_set_description) do
Mongo::Server::Description.new(address, { 'ismaster' => true, 'setName' => 'testing', 'ok' => 1 })
end
describe '.servers' do
before do
mongos.monitor.instance_variable_set(:@description, mongos_description)
standalone.monitor.instance_variable_set(:@description, standalone_description)
replica_set.monitor.instance_variable_set(:@description, replica_set_description)
end
let(:servers) do
topology.servers([ mongos, standalone, replica_set ])
end
it 'returns only mongos servers' do
expect(servers).to eq([ mongos ])
end
end
describe '.replica_set?' do
it 'returns false' do
expect(topology).to_not be_replica_set
end
end
describe '.sharded?' do
it 'returns true' do
expect(topology).to be_sharded
end
end
describe '.single?' do
it 'returns false' do
expect(topology).to_not be_single
end
end
describe '#has_readable_servers?' do
it 'returns true' do
expect(topology).to have_readable_server(nil, nil)
end
end
describe '#has_writable_servers?' do
it 'returns true' do
expect(topology).to have_writable_server(nil)
end
end
describe '#add_hosts?' do
it 'returns false' do
expect(topology.add_hosts?(double('description'), [])).to eq(false)
end
end
describe '#remove_hosts?' do
it 'returns true' do
expect(topology.remove_hosts?(double('description'))).to eq(true)
end
end
describe '#remove_server?' do
before do
mongos.monitor.instance_variable_set(:@description, mongos_description)
replica_set.monitor.instance_variable_set(:@description, replica_set_description)
end
context 'when the server itself should be removed' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:mongos?).and_return(false)
allow(d).to receive(:unknown?).and_return(false)
allow(d).to receive(:is_server?).and_return(true)
end
end
it 'returns true' do
expect(topology.remove_server?(description, mongos)).to eq(true)
end
end
context 'when the server is neither a mongos nor an unknown' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:mongos?).and_return(true)
allow(d).to receive(:is_server?).and_return(false)
end
end
it 'returns true' do
expect(topology.remove_server?(description, replica_set)).to eq(true)
end
end
end
end
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