From 666674327f009e9b1013218fc384f193b64c6997 Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <me@liz.coffee>
Date: Sun, 14 Dec 2025 22:39:18 -0800
Subject: Adds unit tests

---
 tst/fourohfour.test.ts | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 tst/fourohfour.test.ts

(limited to 'tst/fourohfour.test.ts')

diff --git a/tst/fourohfour.test.ts b/tst/fourohfour.test.ts
new file mode 100644
index 0000000..c8fdd6f
--- /dev/null
+++ b/tst/fourohfour.test.ts
@@ -0,0 +1,38 @@
+import { FourOhFourActivityImpl, PenguenoRequest, type BaseRequest, type ServerTrace } from '../lib/index';
+import { CollectingTrace, TestTraceable } from './test_utils';
+
+const makeBaseRequest = (overrides: Partial<BaseRequest> = {}): BaseRequest => ({
+    url: 'https://example.com/missing',
+    method: 'GET',
+    header: () => ({}),
+    formData: async () => new FormData(),
+    json: async () => ({}),
+    text: async () => '',
+    param: () => undefined,
+    query: () => ({}),
+    queries: () => ({}),
+    ...overrides,
+});
+
+describe('server/activity/fourohfour (FourOhFourActivityImpl)', () => {
+    beforeEach(() => {
+        jest.spyOn(globalThis.crypto, 'randomUUID').mockReturnValue('00000000-0000-0000-0000-000000000000');
+        jest.spyOn(Math, 'random').mockReturnValue(0);
+    });
+
+    afterEach(() => {
+        jest.restoreAllMocks();
+    });
+
+    test('returns JsonResponse with 404', async () => {
+        const trace = new CollectingTrace<ServerTrace>();
+        const req = PenguenoRequest.from(TestTraceable.of(makeBaseRequest(), trace));
+
+        const activity = new FourOhFourActivityImpl();
+        const resp = await activity.fourOhFour(req);
+
+        expect(resp.status).toBe(404);
+        expect(resp.headers['Content-Type']).toBe('application/json; charset=utf-8');
+        expect(resp.body()).toContain('"error"');
+    });
+});
-- 
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