HUMMBL MCP Server

import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"; import { Logger } from "./logger.js"; describe("Logger", () => { const spies: Array<ReturnType<typeof vi.spyOn>> = []; beforeEach(() => { spies.push(vi.spyOn(console, "log").mockImplementation(() => {})); spies.push(vi.spyOn(console, "debug").mockImplementation(() => {})); spies.push(vi.spyOn(console, "warn").mockImplementation(() => {})); spies.push(vi.spyOn(console, "error").mockImplementation(() => {})); }); afterEach(() => { spies.splice(0).forEach((spy) => spy.mockRestore()); }); it("exposes parent context through getCurrentContext", () => { const logger = new Logger(1); logger.withCorrelation("parent-123", { requestId: "parent-123" }, () => { const ctx = (logger as any).getCurrentContext(); expect(ctx.requestId).toBe("parent-123"); }); }); it("merges context via withCorrelation", () => { const logger = new Logger(1); logger.withCorrelation("corr-1", { custom: "value" }, () => { const ctx = (logger as any).getCurrentContext(); expect(ctx.custom).toBe("value"); expect(ctx.correlationId).toBe("corr-1"); }); }); it("propagates parent context to child logger", () => { const logger = new Logger(1); logger.withCorrelation("parent", { userId: "user-123" }, () => { const child = logger.child({ sessionId: "session-456" }); child.info("child log"); const ctx = (child as any).getCurrentContext(); expect(ctx.userId).toBe("user-123"); expect(ctx.sessionId).toBe("session-456"); expect(ctx.correlationId).toBe("parent"); }); }); it("logs each level with sampling forced", () => { const logger = new Logger(1); logger.debug("debug log"); logger.info("info log"); logger.warn("warn log"); logger.error("error log", { extra: true }, new Error("boom")); expect(console.debug).toHaveBeenCalledTimes(1); expect(console.log).toHaveBeenCalledTimes(1); expect(console.warn).toHaveBeenCalledTimes(1); expect(console.error).toHaveBeenCalledTimes(1); }); it("records timer success", () => { const logger = new Logger(1); const result = logger.timer("demo.op", { operationDetail: "test" }, () => "done"); expect(result).toBe("done"); expect(console.log).toHaveBeenCalled(); }); it("records timer failure", () => { const logger = new Logger(1); expect(() => logger.timer("demo.fail", () => { throw new Error("boom"); }) ).toThrow("boom"); expect(console.error).toHaveBeenCalled(); }); it("respects sampling (shouldLog false)", () => { const logger = new Logger(0); // 0% sampling logger.info("skipped"); expect(console.log).not.toHaveBeenCalled(); }); });