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import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { env, createExecutionContext, waitOnExecutionContext, fetchMock } from 'cloudflare:test';
import worker from '../worker.js';
const UPSTREAM = 'https://data.cambridgebeerfestival.com';
/**
* Helper to make a request to the worker.
*/
async function fetchWorker(path, origin = 'https://cambeerfestival.app') {
const request = new Request(`https://worker.example.com${path}`, {
headers: { Origin: origin },
});
const ctx = createExecutionContext();
const response = await worker.fetch(request, env, ctx);
await waitOnExecutionContext(ctx);
return response;
}
/**
* Sample Apache-style directory listing HTML.
*/
function makeDirectoryHtml(files) {
const links = files.map((f) => `<a href="${f}">${f}</a>`).join('\n');
return `
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html><head><title>Index of /cbf2025</title></head>
<body><h1>Index of /cbf2025</h1>
<pre>Name Last modified Size Description
<hr>
<a href="/">Parent Directory</a> -
${links}
<hr></pre></body></html>`;
}
describe('available_beverage_types endpoint', () => {
beforeEach(() => {
fetchMock.activate();
fetchMock.disableNetConnect();
});
afterEach(() => {
fetchMock.deactivate();
});
it('parses directory listing into beverage types', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml([
'beer.json', 'cider.json', 'perry.json', 'mead.json',
]));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
expect(response.status).toBe(200);
const data = await response.json();
expect(data.festival_id).toBe('cbf2025');
expect(data.available_beverage_types).toEqual(['beer', 'cider', 'mead', 'perry']);
});
it('returns types sorted alphabetically', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml([
'wine.json', 'beer.json', 'apple-juice.json',
]));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
const data = await response.json();
expect(data.available_beverage_types).toEqual(['apple-juice', 'beer', 'wine']);
});
it('filters out available_beverage_types.json from results', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml([
'beer.json', 'available_beverage_types.json', 'cider.json',
]));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
const data = await response.json();
expect(data.available_beverage_types).toEqual(['beer', 'cider']);
expect(data.available_beverage_types).not.toContain('available_beverage_types');
});
it('returns empty array when no JSON files found', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml([]));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
const data = await response.json();
expect(data.available_beverage_types).toEqual([]);
});
it('returns 404 when festival not found upstream', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/nonexistent/' })
.reply(404, 'Not Found');
const response = await fetchWorker('/nonexistent/available_beverage_types.json');
expect(response.status).toBe(404);
const data = await response.json();
expect(data.error).toBe('Festival not found');
expect(data.festival_id).toBe('nonexistent');
});
it('returns 500 when upstream fetch fails', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.replyWithError(new Error('Connection refused'));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
expect(response.status).toBe(500);
const data = await response.json();
expect(data.error).toBe('Failed to fetch beverage types');
});
it('includes CORS headers on 500 error', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.replyWithError(new Error('Connection refused'));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
expect(response.headers.get('Access-Control-Allow-Origin'))
.toBe('https://cambeerfestival.app');
});
it('includes CORS headers on success', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml(['beer.json']));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
expect(response.headers.get('Access-Control-Allow-Origin'))
.toBe('https://cambeerfestival.app');
});
it('includes CORS headers on 404', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/nonexistent/' })
.reply(404, 'Not Found');
const response = await fetchWorker('/nonexistent/available_beverage_types.json');
expect(response.headers.get('Access-Control-Allow-Origin'))
.toBe('https://cambeerfestival.app');
});
it('sets Cache-Control to 1 hour on success', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml(['beer.json']));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
expect(response.headers.get('Cache-Control')).toBe('public, max-age=3600');
});
it('includes timestamp in response', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml(['beer.json']));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
const data = await response.json();
expect(data.timestamp).toBeDefined();
// Verify it's a valid ISO date
expect(new Date(data.timestamp).toISOString()).toBe(data.timestamp);
});
it('handles hyphenated beverage type names', async () => {
fetchMock.get(UPSTREAM)
.intercept({ path: '/cbf2025/' })
.reply(200, makeDirectoryHtml([
'international-beer.json', 'low-no.json', 'apple-juice.json',
]));
const response = await fetchWorker('/cbf2025/available_beverage_types.json');
const data = await response.json();
expect(data.available_beverage_types).toEqual([
'apple-juice', 'international-beer', 'low-no',
]);
});
});