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require 'spec_helper'
describe Mongo::Server::Description::Inspector::DescriptionChanged do
let(:listeners) do
Mongo::Event::Listeners.new
end
let(:inspection) do
described_class.new(listeners)
end
let(:address) do
Mongo::Address.new('127.0.0.1:27017')
end
describe '.run' do
let(:config) do
{
'ismaster' => true,
'secondary' => false,
'hosts' => [ '127.0.0.1:27018', '127.0.0.1:27019' ],
'setName' => 'test'
}
end
let(:description) do
Mongo::Server::Description.new(address, config, listeners)
end
let(:updated) do
Mongo::Server::Description.new(address, new_config, listeners)
end
let(:listener) do
double('listener')
end
before do
listeners.add_listener(Mongo::Event::DESCRIPTION_CHANGED, listener)
end
context 'when there is no change' do
let(:new_config) do
{
'ismaster' => true,
'secondary' => false,
'hosts' => [ '127.0.0.1:27018', '127.0.0.1:27019' ],
'setName' => 'test'
}
end
it 'does not fire a description changed event' do
expect(listener).to_not receive(:handle)
inspection.run(description, updated)
end
end
context 'when there is a change' do
let(:new_config) do
{
'ismaster' => true,
'secondary' => false,
'hosts' => [ '127.0.0.1:27018', '127.0.0.1:27020' ],
'setName' => 'test'
}
end
it 'fires a description changed event' do
expect(listener).to receive(:handle)
inspection.run(description, updated)
end
end
end
end
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