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Made-with: Cursor

openclaw/extensions/imessage/src/monitor/loop-rate-limiter.test.ts

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+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { createLoopRateLimiter } from "./loop-rate-limiter.js";
+
+describe("createLoopRateLimiter", () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it("allows messages below the threshold", () => {
+    const limiter = createLoopRateLimiter({ windowMs: 10_000, maxHits: 3 });
+    limiter.record("conv:1");
+    limiter.record("conv:1");
+    expect(limiter.isRateLimited("conv:1")).toBe(false);
+  });
+
+  it("rate limits at the threshold", () => {
+    const limiter = createLoopRateLimiter({ windowMs: 10_000, maxHits: 3 });
+    limiter.record("conv:1");
+    limiter.record("conv:1");
+    limiter.record("conv:1");
+    expect(limiter.isRateLimited("conv:1")).toBe(true);
+  });
+
+  it("does not cross-contaminate conversations", () => {
+    const limiter = createLoopRateLimiter({ windowMs: 10_000, maxHits: 2 });
+    limiter.record("conv:1");
+    limiter.record("conv:1");
+    expect(limiter.isRateLimited("conv:1")).toBe(true);
+    expect(limiter.isRateLimited("conv:2")).toBe(false);
+  });
+
+  it("resets after the time window expires", () => {
+    const limiter = createLoopRateLimiter({ windowMs: 5_000, maxHits: 2 });
+    limiter.record("conv:1");
+    limiter.record("conv:1");
+    expect(limiter.isRateLimited("conv:1")).toBe(true);
+
+    vi.advanceTimersByTime(6_000);
+    expect(limiter.isRateLimited("conv:1")).toBe(false);
+  });
+
+  it("returns false for unknown conversations", () => {
+    const limiter = createLoopRateLimiter();
+    expect(limiter.isRateLimited("unknown")).toBe(false);
+  });
+});