107 lines
3.0 KiB
Elixir
107 lines
3.0 KiB
Elixir
defmodule OpentelemetryEctoTest do
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alias OpentelemetryEcto.TestRepo, as: Repo
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alias OpentelemetryEcto.TestModels.{User, Post}
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require OpenTelemetry.Tracer
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use ExUnit.Case
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@event_name [:opentelemetry_ecto, :test_repo]
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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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:ok = Ecto.Adapters.SQL.Sandbox.checkout(OpentelemetryEcto.TestRepo)
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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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end)
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end
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test "captures basic query events" do
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attach_handler()
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Repo.all(User)
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assert_receive {:span,
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span(
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name: "opentelemetry_ecto.test_repo.query:users",
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attributes: list
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)}
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assert [
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"db.instance": "opentelemetry_ecto_test",
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"db.statement": "SELECT u0.\"id\", u0.\"email\" FROM \"users\" AS u0",
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"db.type": :sql,
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"db.url": "ecto://localhost",
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decode_time_microseconds: _,
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query_time_microseconds: _,
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queue_time_microseconds: _,
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source: "users",
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total_time_microseconds: _
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] = List.keysort(list, 0)
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end
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test "changes the time unit" do
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attach_handler(time_unit: :millisecond)
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Repo.all(Post)
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assert_receive {:span,
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span(
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name: "opentelemetry_ecto.test_repo.query:posts",
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attributes: list
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)}
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assert [
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"db.instance": "opentelemetry_ecto_test",
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"db.statement": "SELECT p0.\"id\", p0.\"body\", p0.\"user_id\" FROM \"posts\" AS p0",
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"db.type": :sql,
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"db.url": "ecto://localhost",
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decode_time_milliseconds: _,
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query_time_milliseconds: _,
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queue_time_milliseconds: _,
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source: "posts",
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total_time_milliseconds: _
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] = List.keysort(list, 0)
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end
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test "changes the span name prefix" do
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attach_handler(span_prefix: "Ecto")
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Repo.all(User)
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assert_receive {:span, span(name: "Ecto:users")}
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end
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test "collects multiple spans" do
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user = Repo.insert!(%User{email: "opentelemetry@erlang.org"})
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Repo.insert!(%Post{body: "We got traced!", user: user})
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attach_handler()
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User
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|> Repo.all()
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|> Repo.preload([:posts])
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assert_receive {:span, span(name: "opentelemetry_ecto.test_repo.query:users")}
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assert_receive {:span, span(name: "opentelemetry_ecto.test_repo.query:posts")}
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end
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def attach_handler(config \\ []) do
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# For now setup the handler manually in each test
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handler = {__MODULE__, self()}
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:telemetry.attach(handler, @event_name ++ [:query], &OpentelemetryEcto.handle_event/4, config)
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on_exit(fn ->
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:telemetry.detach(handler)
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end)
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end
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end
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