import { describe, expect, it } from "@effect/vitest";import * as Cause from "effect/Cause";import * as Exit from "effect/Exit";import {  messageFromExit,  messageFromUnknown,  reportExitFailure,  type FrontendErrorContext,} from "./error-reporting"; describe("frontend error reporting", () => {  it("extracts stable messages from structured failures", () => {    expect(messageFromUnknown({ message: "Saved connection failed" }, "Fallback")).toBe(      "Saved connection failed",    );    expect(messageFromUnknown("Plain failure", "Fallback")).toBe("Plain failure");    expect(messageFromUnknown({ reason: "unknown" }, "Fallback")).toBe("Fallback");  });   it("extracts stable messages from Effect exits", () => {    const exit = Exit.fail({ message: "Could not update source" });     expect(messageFromExit(exit, "Fallback")).toBe("Could not update source");    expect(messageFromExit(Exit.fail({ reason: "unknown" }), "Fallback")).toBe("Fallback");  });   it("reports failed exits with the provided context", () => {    const exit = Exit.fail({ message: "Could not update source" });    const calls: Array<{ error: unknown; context: FrontendErrorContext }> = [];     reportExitFailure(      (error, context) => {        calls.push({ error, context });      },      exit,      {        surface: "sources",        action: "update",        message: "Could not update source",      },    );     expect(calls).toHaveLength(1);    expect(Cause.isCause(calls[0]!.error)).toBe(true);    expect(calls[0]!.context.surface).toBe("sources");    expect(calls[0]!.context.action).toBe("update");  });});