inital commit

Overlord-Server/src/rateLimit.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, test } from "bun:test";
+import { isRateLimited, recordFailedAttempt, recordSuccessfulAttempt } from "./rateLimit";
+
+describe("rateLimit", () => {
+  test("locks out after repeated failures", () => {
+    const ip = `10.0.0.${Date.now()}`;
+    for (let i = 0; i < 5; i += 1) {
+      recordFailedAttempt(ip);
+    }
+
+    const result = isRateLimited(ip);
+    expect(result.limited).toBe(true);
+    expect(result.retryAfter).toBeGreaterThan(0);
+  });
+
+  test("successful attempt clears lock state", () => {
+    const ip = `10.0.1.${Date.now()}`;
+    for (let i = 0; i < 5; i += 1) {
+      recordFailedAttempt(ip);
+    }
+    expect(isRateLimited(ip).limited).toBe(true);
+
+    recordSuccessfulAttempt(ip);
+    expect(isRateLimited(ip).limited).toBe(false);
+  });
+});