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Merge pull request #8 from NFIBrokerage/allow-dynamic-named-processes
Allow beeline to match Elixir's OTP naming
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| defmodule Beeline.ProcessNaming do | ||
| @moduledoc false | ||
|
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| defmodule Guards do | ||
| @moduledoc false | ||
| # coveralls-ignore-start | ||
| defguard is_beeline_name(name) | ||
| when is_atom(name) or | ||
| (is_tuple(name) and elem(name, 0) == :global and | ||
| tuple_size(name) == 2) or | ||
| (is_tuple(name) and elem(name, 0) == :via and | ||
| elem(name, 1) == Registry and tuple_size(name) == 3) | ||
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| # coveralls-ignore-stop | ||
| end | ||
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| # Provides common logic for standard OTP server_name types. | ||
| def(name(%Beeline.Config{name: name}, appended_name)) do | ||
| name(name, appended_name) | ||
| end | ||
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| def name(base_name, appended_name) when is_atom(base_name) do | ||
| Module.concat(base_name, appended_name) | ||
| end | ||
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| def name({:global, base_name}, appended_name) do | ||
| {:global, {base_name, appended_name}} | ||
| end | ||
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| def name({:via, Registry, {registry_name, base_name}}, appended_name) do | ||
| {:via, Registry, {registry_name, {base_name, appended_name}}} | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| defmodule Beeline.GlobalRegistryTest do | ||
| use ExUnit.Case, async: true | ||
|
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| @moduletag :capture_log | ||
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| @producer_id {Beeline.Topology.Producer, :default} | ||
| @fixture Beeline.DummyNameFixture | ||
| @name {:global, @fixture} | ||
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| setup do | ||
| [beeline_pid: start_supervised!({@fixture, %{name: @name, proc: self()}})] | ||
| end | ||
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| test "the dummy handler can handle events" do | ||
| events = [%{foo: "bar"}, %{foo: "bar"}, %{foo: "bar"}] | ||
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| :ok = Beeline.test_events(events, {:global, @fixture}) | ||
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| assert_receive {:event, event_a} | ||
| assert_receive {:event, event_b} | ||
| assert_receive {:event, event_c} | ||
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| assert [event_a, event_b, event_c] == events | ||
| end | ||
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| test "the dummy producer and handler are both restarted with restart_stages/1" do | ||
| %{ | ||
| @producer_id => producer_pid, | ||
| @fixture => consumer_pid | ||
| } = stage_children() | ||
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| producer_ref = Process.monitor(producer_pid) | ||
| consumer_ref = Process.monitor(consumer_pid) | ||
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| assert Beeline.restart_stages({:global, @fixture}) == :ok | ||
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| assert_receive {:DOWN, ^producer_ref, :process, ^producer_pid, :shutdown} | ||
| assert_receive {:DOWN, ^consumer_ref, :process, ^consumer_pid, :shutdown} | ||
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| %{ | ||
| @producer_id => producer_pid, | ||
| @fixture => consumer_pid | ||
| } = stage_children() | ||
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| assert Process.alive?(producer_pid) | ||
| assert Process.alive?(consumer_pid) | ||
| end | ||
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| test "when the consumer raises on an event, it kills the producer as well" do | ||
| %{ | ||
| @producer_id => producer_pid, | ||
| @fixture => consumer_pid | ||
| } = stage_children() | ||
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| producer_ref = Process.monitor(producer_pid) | ||
| consumer_ref = Process.monitor(consumer_pid) | ||
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| good_event = %{foo: "bar"} | ||
| bad_event = %{poison?: true} | ||
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| :ok = Beeline.test_events([good_event, bad_event], {:global, @fixture}) | ||
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| assert_receive {:event, ^good_event} | ||
| refute_receive {:event, ^bad_event} | ||
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| assert_receive {:DOWN, ^producer_ref, :process, ^producer_pid, :shutdown} | ||
| assert_receive {:DOWN, ^consumer_ref, :process, ^consumer_pid, _error} | ||
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| # then the producer and consumer are restarted | ||
| %{ | ||
| @producer_id => producer_pid, | ||
| @fixture => consumer_pid | ||
| } = stage_children() | ||
|
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| assert Process.alive?(producer_pid) | ||
| assert Process.alive?(consumer_pid) | ||
| end | ||
|
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| defp stage_children do | ||
| {:global, @fixture} | ||
| |> Beeline.ProcessNaming.name(StageSupervisor) | ||
| |> Supervisor.which_children() | ||
| |> Enum.into(%{}, fn {id, pid, _, _} -> {id, pid} end) | ||
| end | ||
| end |
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