AI Implementation feature(873): Landing Page and Login/Register Modal 1.01 (#13)

tests/backend/registration-rate-limit.spec.ts

@@ -32,6 +32,25 @@ describe('RegistrationRateLimitService', () => {
     for (let i = 0; i < 10; i++) s.record('1.1.1.1', now + i);
     expect(s.isAllowed('2.2.2.2', now + 10)).toBe(true);
   });
+
+  it('tryConsume admits exactly 10 and rejects the 11th without double-recording', () => {
+    const s = new RegistrationRateLimitService();
+    const now = 1_000_000;
+    for (let i = 0; i < 10; i++) {
+      expect(s.tryConsume('1.1.1.1', now + i)).toBe(true);
+    }
+    expect(s.tryConsume('1.1.1.1', now + 10)).toBe(false);
+  });
+
+  it('tryConsume admits again once the window rolls over', () => {
+    const s = new RegistrationRateLimitService();
+    const base = 1_000_000;
+    for (let i = 0; i < 10; i++) {
+      expect(s.tryConsume('1.1.1.1', base + i)).toBe(true);
+    }
+    expect(s.tryConsume('1.1.1.1', base + 10)).toBe(false);
+    expect(s.tryConsume('1.1.1.1', base + 60_000)).toBe(true);
+  });
 });
 
 describe('register-first-admin registration rate limit (integration)', () => {
@@ -77,4 +96,4 @@ describe('register-first-admin registration rate limit (integration)', () => {
       .send({ username: 'noone', password: 'Sup3rSecret!Pass' })
       .expect(429);
   });
-});
+});