Files
fusion/packages/engine/src/logger.test.ts
2026-04-11 21:13:16 -07:00

89 lines
2.6 KiB
TypeScript

import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import {
createLogger,
schedulerLog,
executorLog,
triageLog,
mergerLog,
worktreePoolLog,
reviewerLog,
remoteNodeLog,
} from "./logger.js";
describe("createLogger", () => {
let logSpy: ReturnType<typeof vi.spyOn>;
let warnSpy: ReturnType<typeof vi.spyOn>;
let errorSpy: ReturnType<typeof vi.spyOn>;
beforeEach(() => {
logSpy = vi.spyOn(console, "log").mockImplementation(() => {});
warnSpy = vi.spyOn(console, "warn").mockImplementation(() => {});
errorSpy = vi.spyOn(console, "error").mockImplementation(() => {});
});
afterEach(() => {
logSpy.mockRestore();
warnSpy.mockRestore();
errorSpy.mockRestore();
});
it("formats log output as [prefix] message on stderr", () => {
const logger = createLogger("test");
logger.log("hello world");
expect(logSpy).not.toHaveBeenCalled();
expect(errorSpy).toHaveBeenCalledWith("[test] hello world");
});
it("formats warn output as [prefix] message", () => {
const logger = createLogger("test");
logger.warn("something happened");
expect(warnSpy).toHaveBeenCalledWith("[test] something happened");
});
it("formats error output as [prefix] message", () => {
const logger = createLogger("test");
logger.error("failure");
expect(errorSpy).toHaveBeenCalledWith("[test] failure");
});
it("passes extra arguments through", () => {
const logger = createLogger("test");
const err = new Error("boom");
logger.error("failed:", err);
expect(errorSpy).toHaveBeenCalledWith("[test] failed:", err);
});
it("keeps log output off stdout", () => {
const logger = createLogger("x");
logger.log("a");
logger.warn("b");
logger.error("c");
expect(logSpy).not.toHaveBeenCalled();
expect(warnSpy).toHaveBeenCalledTimes(1);
expect(errorSpy).toHaveBeenCalledTimes(2);
});
it("pre-built instances use correct prefixes", () => {
schedulerLog.log("tick");
expect(errorSpy).toHaveBeenCalledWith("[scheduler] tick");
executorLog.log("run");
expect(errorSpy).toHaveBeenCalledWith("[executor] run");
triageLog.log("spec");
expect(errorSpy).toHaveBeenCalledWith("[triage] spec");
mergerLog.log("merge");
expect(errorSpy).toHaveBeenCalledWith("[merger] merge");
worktreePoolLog.log("prune");
expect(errorSpy).toHaveBeenCalledWith("[worktree-pool] prune");
reviewerLog.log("review");
expect(errorSpy).toHaveBeenCalledWith("[reviewer] review");
remoteNodeLog.log("stream");
expect(errorSpy).toHaveBeenCalledWith("[remote-node] stream");
});
});