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commanded test helpers appending_event_handler.ex
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test/helpers/appending_event_handler.ex

defmodule Commanded.Event.AppendingEventHandler do
@behaviour Commanded.Event.Handler
def start_link do
Agent.start_link(fn -> %{events: [], metadata: []} end, name: __MODULE__)
end
def handle(event, event_metadata) do
Agent.update(__MODULE__, fn %{events: events, metadata: metadata} ->
%{events: events ++ [event], metadata: metadata ++ [event_metadata]}
end)
end
def received_events do
Agent.get(__MODULE__, fn %{events: events} -> events end)
end
def received_metadata do
Agent.get(__MODULE__, fn %{metadata: metadata} -> metadata end)
end
end