70 lines
1.8 KiB
Elixir
70 lines
1.8 KiB
Elixir
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defmodule OpentelemetryDataloaderTest do
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use ExUnit.Case
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require OpenTelemetry.Tracer
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alias OpentelemetryDataloader.TestRepo, as: Repo
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alias OpentelemetryDataloader.TestModels.Post
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require Record
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for {name, spec} <- Record.extract_all(from_lib: "opentelemetry/include/otel_span.hrl") do
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Record.defrecord(name, spec)
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end
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setup do
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:application.stop(:opentelemetry)
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:application.set_env(:opentelemetry, :tracer, :otel_tracer_default)
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:application.set_env(:opentelemetry, :processors, [
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{:otel_batch_processor, %{scheduled_delay_ms: 1}}
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])
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:application.start(:opentelemetry)
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:otel_batch_processor.set_exporter(:otel_exporter_pid, self())
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OpenTelemetry.Tracer.start_span("test")
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on_exit(fn ->
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OpenTelemetry.Tracer.end_span()
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:telemetry.detach({__MODULE__, :batch})
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:telemetry.detach({__MODULE__, :run})
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end)
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end
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test "captures dataloader ecto source events" do
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OpentelemetryDataloader.setup()
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source = Dataloader.Ecto.new(Repo)
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loader = Dataloader.new() |> Dataloader.add_source(:db, source)
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loader =
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loader
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|> Dataloader.load(:db, Post, 1)
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|> Dataloader.load_many(:db, Post, [4, 9])
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Dataloader.run(loader)
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assert_receive {:span,
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span(
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name: "dataloader.run",
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attributes: attributes,
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kind: :client
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)}
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assert %{} = :otel_attributes.map(attributes)
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assert_receive {:span,
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span(
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name: "dataloader.batch",
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attributes: attributes,
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kind: :client
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)}
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assert %{"dataloader.batch_key" => key} = :otel_attributes.map(attributes)
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assert key =~ ~r/OpentelemetryDataloader.TestModels.Post/
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end
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end
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