test/medical_transcription/classification_server_test.exs

defmodule Medicode.ClassificationServerTest do
  @moduledoc """
  Tests for Medicode.ClassificationServer
  """

  use Medicode.DataCase

  import Medicode.TranscriptionsFixtures
  import Medicode.TranscriptionChunksFixtures
  import Medicode.CodeVectorsFixtures

  alias Medicode.Transcriptions
  alias Medicode.ClassificationServer

  setup do
    transcription = transcription_fixture()

    chunk =
      transcription_chunk_fixture(%{
        transcription_id: transcription.id,
        text: "patient is suffering Typhoid fever"
      })

    insert_code_vector_fixtures()

    %{chunk: chunk, transcription: transcription}
  end

  test "extract keywords and assign medical codes", %{chunk: chunk, transcription: transcription} do
    spec = {ClassificationServer, %{chunk: chunk, name: "transcription_chunk:#{chunk.id}"}}

    {:ok, pid} = start_supervised(spec, restart: :transient)

    ref = Process.monitor(pid)
    assert_receive({:DOWN, ^ref, :process, _object, _pid}, 5_000)

    chunks =
      transcription.id
      |> Transcriptions.get_transcription!(true)
      |> Map.fetch!(:chunks)

    keywords = Enum.flat_map(chunks, & &1.keywords)
    code_vectors = Enum.flat_map(chunks, & &1.code_vectors)

    assert 2 == Enum.count(keywords)
    assert 2 == Enum.count(code_vectors)
  end
end