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- # frozen_string_literal: true
- require 'rails_helper'
- describe ConnectionPool::SharedTimedStack do
- subject { described_class.new(5) { |site| mini_connection_class.new(site) } }
- let(:mini_connection_class) do
- Class.new do
- attr_reader :site
- def initialize(site)
- @site = site
- end
- end
- end
- describe '#push' do
- it 'keeps the connection in the stack' do
- subject.push(mini_connection_class.new('foo'))
- expect(subject.size).to eq 1
- end
- end
- describe '#pop' do
- it 'returns a connection' do
- expect(subject.pop('foo')).to be_a mini_connection_class
- end
- it 'returns the same connection that was pushed in' do
- connection = mini_connection_class.new('foo')
- subject.push(connection)
- expect(subject.pop('foo')).to be connection
- end
- it 'does not create more than maximum amount of connections' do
- expect { 6.times { subject.pop('foo', 0) } }.to raise_error Timeout::Error
- end
- it 'repurposes a connection for a different site when maximum amount is reached' do
- 5.times { subject.push(mini_connection_class.new('foo')) }
- expect(subject.pop('bar')).to be_a mini_connection_class
- end
- end
- describe '#empty?' do
- it 'returns true when no connections on the stack' do
- expect(subject.empty?).to be true
- end
- it 'returns false when there are connections on the stack' do
- subject.push(mini_connection_class.new('foo'))
- expect(subject.empty?).to be false
- end
- end
- describe '#size' do
- it 'returns the number of connections on the stack' do
- 2.times { subject.push(mini_connection_class.new('foo')) }
- expect(subject.size).to eq 2
- end
- end
- end
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