63 lines
		
	
	
	
		
			1.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
	
		
			1.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| require 'rails_helper'
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| 
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| describe RequestPool do
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|   subject { described_class.new }
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| 
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|   describe '#with' do
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|     it 'returns a HTTP client for a host' do
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|       subject.with('http://example.com') do |http_client|
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|         expect(http_client).to be_a HTTP::Client
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|       end
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|     end
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| 
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|     it 'returns the same instance of HTTP client within the same thread for the same host' do
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|       test_client = nil
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| 
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|       subject.with('http://example.com') { |http_client| test_client = http_client }
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|       expect(test_client).to_not be_nil
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|       subject.with('http://example.com') { |http_client| expect(http_client).to be test_client }
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|     end
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| 
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|     it 'returns different HTTP clients for different hosts' do
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|       test_client = nil
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| 
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|       subject.with('http://example.com') { |http_client| test_client = http_client }
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|       expect(test_client).to_not be_nil
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|       subject.with('http://example.org') { |http_client| expect(http_client).to_not be test_client }
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|     end
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| 
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|     it 'grows to the number of threads accessing it' do
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|       stub_request(:get, 'http://example.com/').to_return(status: 200, body: 'Hello!')
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| 
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|       subject
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| 
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|       threads = 20.times.map do |_i|
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|         Thread.new do
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|           20.times do
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|             subject.with('http://example.com') do |http_client|
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|               http_client.get('/').flush
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|             end
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|           end
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|         end
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|       end
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| 
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|       threads.map(&:join)
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| 
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|       expect(subject.size).to be > 1
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|     end
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| 
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|     it 'closes idle connections' do
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|       stub_request(:get, 'http://example.com/').to_return(status: 200, body: 'Hello!')
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| 
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|       subject.with('http://example.com') do |http_client|
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|         http_client.get('/').flush
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|       end
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| 
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|       expect(subject.size).to eq 1
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|       sleep RequestPool::MAX_IDLE_TIME + 30 + 1
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|       expect(subject.size).to eq 0
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|     end
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|   end
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| end
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