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require 'spec_helper'
describe Mongo::Cluster::Topology::Unknown do
let(:monitoring) do
Mongo::Monitoring.new(monitoring: false)
end
let(:topology) do
described_class.new({}, monitoring)
end
describe '.servers' do
let(:servers) do
topology.servers([ double('mongos'), double('standalone') ])
end
it 'returns an empty array' do
expect(servers).to eq([ ])
end
end
describe '.replica_set?' do
it 'returns false' do
expect(topology).to_not be_replica_set
end
end
describe '.sharded?' do
it 'returns false' do
expect(topology).not_to be_sharded
end
end
describe '.single?' do
it 'returns false' do
expect(topology).not_to be_single
end
end
describe '.unknown?' do
it 'returns true' do
expect(topology.unknown?).to be(true)
end
end
describe '#has_readable_servers?' do
it 'returns false' do
expect(topology).to_not have_readable_server(nil, nil)
end
end
describe '#has_writable_servers?' do
it 'returns false' do
expect(topology).to_not have_writable_server(nil)
end
end
describe '#add_hosts?' do
context 'when the description is from an unknown server' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:unknown?).and_return(true)
end
end
it 'returns false' do
expect(topology.add_hosts?(description, [])).to be(false)
end
end
context 'when the description is from a ghost server' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:unknown?).and_return(false)
allow(d).to receive(:ghost?).and_return(true)
end
end
it 'returns false' do
expect(topology.add_hosts?(description, [])).to be(false)
end
end
context 'when the description is not from an unknown or ghost' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:unknown?).and_return(false)
allow(d).to receive(:ghost?).and_return(false)
end
end
it 'returns true' do
expect(topology.add_hosts?(description, [])).to be(true)
end
end
end
describe '#remove_hosts?' do
context 'when the description is from a standalone' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:standalone?).and_return(true)
end
end
it 'returns true' do
expect(topology.remove_hosts?(description)).to be(true)
end
end
context 'when the description is not from a standalone' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:standalone?).and_return(false)
end
end
it 'returns true' do
expect(topology.remove_hosts?(description)).to be(false)
end
end
end
describe '#remove_server?' do
context 'when the description is from a standalone' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:standalone?).and_return(true)
allow(d).to receive(:is_server?).and_return(true)
end
end
context 'when the description is from the server in question' do
it 'returns true' do
expect(topology.remove_server?(description, double('server'))).to be(true)
end
end
context 'when the description is not from the server in question' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:standalone?).and_return(true)
allow(d).to receive(:is_server?).and_return(false)
end
end
it 'returns false' do
expect(topology.remove_server?(description, double('server'))).to be(false)
end
end
end
context 'when the description is not from a standalone' do
let(:description) do
double('description').tap do |d|
allow(d).to receive(:standalone?).and_return(false)
end
end
it 'returns false' do
expect(topology.remove_server?(description, double('server'))).to be(false)
end
end
end
end
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