test(api-validation): add query validation boundaries for ?accent= parameter(Variation 5)

Author: tamilr0727-ux

app/api/streak/route.test.ts

@@ -766,6 +766,16 @@ describe('GET /api/streak', () => {
 
       expect(response.status).toBe(400);
     });
+
+    it('returns 400 Bad Request for invalid color hex syntax targeting the ?accent= parameter', async () => {
+      const response = await GET(makeRequest({ user: 'octocat', accent: '#ZZZZZZ' }));
+
+      expect(response.status).toBe(400);
+
+      const body = await response.json();
+      expect(body.error).toBe('Invalid parameters');
+      expect(body.details).not.toBeNull();
+    });
   });
 
   describe('hide parameters', () => {

lib/validations.test.ts

@@ -795,6 +795,22 @@ describe('streakParamsSchema — accent parameter HEX color validation', () => {
     expect(result.success).toBe(false);
   });
 
+  it('rejects an invalid hex color like "#ZZZZZZ" for accent (Variation 5)', () => {
+    const result = streakParamsSchema.safeParse({
+      user: 'octocat',
+      accent: '#ZZZZZZ',
+    });
+
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      // This extra check ensures Variation 5 isn't just a duplicate,
+      // but a stricter validation check!
+      expect(result.error.issues[0]?.message).toContain(
+        'accent must be a valid 3 or 6 character hex color without #'
+      );
+    }
+  });
+
   it('rejects the invalid boundary hex color "#ZZZZZZ" for accent', () => {
     const result = streakParamsSchema.safeParse({
       user: 'octocat',