Revert "Merge branch 'revert-4fabf83a' into 'develop'"

This reverts commit fe7fd33126, reversing
changes made to 4fabf83ad0.

test/web/streamer/ping_test.exs

@@ -0,0 +1,36 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PingTest do
+  use Pleroma.DataCase
+
+  import Pleroma.Factory
+  alias Pleroma.Web.Streamer
+
+  setup do
+    start_supervised({Streamer.supervisor(), [ping_interval: 30]})
+
+    :ok
+  end
+
+  describe "sockets" do
+    setup do
+      user = insert(:user)
+      {:ok, %{user: user}}
+    end
+
+    test "it sends pings", %{user: user} do
+      task =
+        Task.async(fn ->
+          assert_receive {:text, received_event}, 40
+          assert_receive {:text, received_event}, 40
+          assert_receive {:text, received_event}, 40
+        end)
+
+      Streamer.add_socket("public", %{transport_pid: task.pid, assigns: %{user: user}})
+
+      Task.await(task)
+    end
+  end
+end