99 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			99 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
| # Pleroma: A lightweight social networking server
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| # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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| # SPDX-License-Identifier: AGPL-3.0-only
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| 
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| defmodule Pleroma.Gun.ConnectionPoolTest do
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|   use Pleroma.DataCase
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| 
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|   import Mox
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|   import ExUnit.CaptureLog
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|   alias Pleroma.Gun.ConnectionPool
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| 
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|   defp gun_mock(_) do
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|     Pleroma.GunMock
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|     |> stub(:open, fn _, _, _ -> Task.start_link(fn -> Process.sleep(100) end) end)
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|     |> stub(:await_up, fn _, _ -> {:ok, :http} end)
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|     |> stub(:set_owner, fn _, _ -> :ok end)
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| 
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|     :ok
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|   end
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| 
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|   setup :gun_mock
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| 
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|   test "gives the same connection to 2 concurrent requests" do
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|     Enum.map(
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|       [
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|         "http://www.korean-books.com.kp/KBMbooks/en/periodic/pictorial/20200530163914.pdf",
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|         "http://www.korean-books.com.kp/KBMbooks/en/periodic/pictorial/20200528183427.pdf"
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|       ],
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|       fn uri ->
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|         uri = URI.parse(uri)
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|         task_parent = self()
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| 
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|         Task.start_link(fn ->
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|           {:ok, conn} = ConnectionPool.get_conn(uri, [])
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|           ConnectionPool.release_conn(conn)
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|           send(task_parent, conn)
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|         end)
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|       end
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|     )
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| 
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|     [pid, pid] =
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|       for _ <- 1..2 do
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|         receive do
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|           pid -> pid
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|         end
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|       end
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|   end
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| 
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|   test "connection limit is respected with concurrent requests" do
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|     clear_config([:connections_pool, :max_connections]) do
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|       clear_config([:connections_pool, :max_connections], 1)
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|       # The supervisor needs a reboot to apply the new config setting
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|       Process.exit(Process.whereis(Pleroma.Gun.ConnectionPool.WorkerSupervisor), :kill)
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| 
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|       on_exit(fn ->
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|         Process.exit(Process.whereis(Pleroma.Gun.ConnectionPool.WorkerSupervisor), :kill)
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|       end)
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|     end
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| 
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|     capture_log(fn ->
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|       Enum.map(
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|         [
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|           "https://ninenines.eu/",
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|           "https://youtu.be/PFGwMiDJKNY"
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|         ],
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|         fn uri ->
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|           uri = URI.parse(uri)
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|           task_parent = self()
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| 
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|           Task.start_link(fn ->
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|             result = ConnectionPool.get_conn(uri, [])
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|             # Sleep so that we don't end up with a situation,
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|             # where request from the second process gets processed
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|             # only after the first process already released the connection
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|             Process.sleep(50)
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| 
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|             case result do
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|               {:ok, pid} ->
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|                 ConnectionPool.release_conn(pid)
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| 
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|               _ ->
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|                 nil
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|             end
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| 
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|             send(task_parent, result)
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|           end)
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|         end
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|       )
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| 
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|       [{:error, :pool_full}, {:ok, _pid}] =
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|         for _ <- 1..2 do
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|           receive do
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|             result -> result
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|           end
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|         end
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|         |> Enum.sort()
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|     end)
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|   end
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| end
 | 
