feat(tests): integration with Oban and Broadway

[solnic]

Streamlines test setup for popular Oban and Broadway libs, so that we can have tests like this:

defmodule SyncService.SyncWorkerTest do
  use SyncService.DataCase, async: false

  import Sentry.Test.Assertions
  import SyncService.Test.Fixtures

  alias SyncService.SyncWorker
  alias SyncService.Test.Oban, as: TestOban

  setup do
    Sentry.Test.setup_sentry(allowance: [Oban])

    start_supervised!(TestOban.child_spec())

    :ok
  end

  defp run_worker!(args), do: TestOban.run!(SyncWorker, args)

  describe "upsert via real Oban worker process" do
    test "stamps sync_rev and emits metrics" do
      org_id = setup_org()

      assert :success =
               run_worker!(%{
                 org_id: org_id,
                 operation: "upsert",
                 user_id: "test-user-1",
                 entity_type: "organizations",
                 entities: [
                   %{"id" => "org-pipe-1", "name" => "Pipe Org", "slug" => "pipe-org"}
                 ]
               })

      org = get_organization(org_id, "org-pipe-1")
      assert org
      assert org.sync_rev >= 1

      assert_sentry_metric(:counter,
        name: "sync.job.started",
        attributes: %{operation: "upsert"}
      )

      assert_sentry_metric(:counter,
        name: "sync.job.completed",
        attributes: %{operation: "upsert"}
      )

      assert_sentry_metric(:distribution,
        name: "sync.job.duration",
        unit: "millisecond",
        attributes: %{operation: "upsert"}
      )
    end
  end
end