import { describe, expect, it } from "@effect/vitest";import * as Effect from "effect/Effect";import * as Option from "effect/Option";import * as Tracer from "effect/Tracer"; import { RelayClientTracer, withRelayClientTracing } from "./relayTracing.ts"; function collectingTracer(spans: Array<string>): Tracer.Tracer {  return Tracer.make({    span: (options) => {      const span = new Tracer.NativeSpan(options);      const end = span.end.bind(span);      span.end = (endTime, exit) => {        end(endTime, exit);        spans.push(span.name);      };      return span;    },  });} describe("withRelayClientTracing", () => {  it.effect("uses the product tracer only for relay operations", () =>    Effect.gen(function* () {      const userSpans: Array<string> = [];      const productSpans: Array<string> = [];      const userTracer = collectingTracer(userSpans);      const productTracer = collectingTracer(productSpans);       yield* Effect.void.pipe(Effect.withSpan("user.operation"), Effect.withTracer(userTracer));      yield* Effect.void.pipe(        Effect.withSpan("relay.operation"),        withRelayClientTracing,        Effect.provideService(RelayClientTracer, Option.some(productTracer)),        Effect.withTracer(userTracer),      );       expect(userSpans).toEqual(["user.operation"]);      expect(productSpans).toEqual(["relay.operation"]);    }),  );   it.effect("preserves the active tracer when product tracing is disabled", () =>    Effect.gen(function* () {      const userSpans: Array<string> = [];      const userTracer = collectingTracer(userSpans);       yield* Effect.void.pipe(        Effect.withSpan("relay.operation"),        withRelayClientTracing,        Effect.withTracer(userTracer),      );       expect(userSpans).toEqual(["relay.operation"]);    }),  );});