Files
market_screener/tests/screener.controller.test.ts
T
2026-06-06 22:55:43 -04:00

119 lines
4.2 KiB
TypeScript

/**
* Integration tests for ScreenerController + /health
* Uses Fastify inject() — no real Yahoo calls, no live server.
*/
import { test } from 'node:test';
import assert from 'node:assert/strict';
import Fastify from 'fastify';
import cors from '@fastify/cors';
import { ScreenerController } from '../server/controllers/screener.controller';
import type { ScreenerEngine } from '../server/services/ScreenerEngine';
import type { ScreenerResult, MarketContext } from '../server/types';
// ── Fixture data ────────────────────────────────────────────────────────────
const MARKET_CTX: MarketContext = {
sp500Price: 5000,
riskFreeRate: 4.5,
vixLevel: 18,
rateRegime: 'NORMAL',
volatilityRegime: 'NORMAL',
benchmarks: { marketPE: 22, techPE: 30, reitYield: 3.5, igSpread: 1.0 },
};
const EMPTY_RESULT: ScreenerResult = {
STOCK: [],
ETF: [],
BOND: [],
ERROR: [],
marketContext: MARKET_CTX,
};
// ── Stub ────────────────────────────────────────────────────────────────────
const stubEngine = {
screenTickers: async (_tickers: string[]) => EMPTY_RESULT,
getMarketContext: async () => MARKET_CTX,
} as unknown as ScreenerEngine;
// ── App factory ─────────────────────────────────────────────────────────────
async function buildTestApp() {
const app = Fastify({ logger: false });
await app.register(cors, { origin: '*' });
new ScreenerController(stubEngine).register(app);
app.get('/health', async () => ({ status: 'ok' }));
await app.ready();
return app;
}
// ── Tests ────────────────────────────────────────────────────────────────────
test('GET /health → 200 { status: ok }', async () => {
const app = await buildTestApp();
const res = await app.inject({ method: 'GET', url: '/health' });
assert.equal(res.statusCode, 200);
assert.deepEqual(res.json(), { status: 'ok' });
});
test('POST /api/screen → 200 with STOCK/ETF/BOND/ERROR/marketContext keys', async () => {
const app = await buildTestApp();
const res = await app.inject({
method: 'POST',
url: '/api/screen',
payload: { tickers: ['AAPL'] },
});
assert.equal(res.statusCode, 200);
const body = res.json();
assert.ok(Array.isArray(body.STOCK), 'STOCK should be array');
assert.ok(Array.isArray(body.ETF), 'ETF should be array');
assert.ok(Array.isArray(body.BOND), 'BOND should be array');
assert.ok(Array.isArray(body.ERROR), 'ERROR should be array');
assert.ok(body.marketContext, 'marketContext should be present');
});
test('POST /api/screen → marketContext has expected shape', async () => {
const app = await buildTestApp();
const res = await app.inject({
method: 'POST',
url: '/api/screen',
payload: { tickers: ['MSFT'] },
});
const { marketContext } = res.json();
assert.ok(typeof marketContext.riskFreeRate === 'number');
assert.ok(typeof marketContext.sp500Price === 'number');
assert.ok(typeof marketContext.vixLevel === 'number');
assert.ok(marketContext.benchmarks);
});
test('POST /api/screen with missing tickers → 400', async () => {
const app = await buildTestApp();
const res = await app.inject({
method: 'POST',
url: '/api/screen',
payload: {},
});
assert.equal(res.statusCode, 400);
});
test('POST /api/screen with empty tickers array → 400', async () => {
const app = await buildTestApp();
const res = await app.inject({
method: 'POST',
url: '/api/screen',
payload: { tickers: [] },
});
assert.equal(res.statusCode, 400);
});
test('POST /api/screen with too many tickers (>50) → 400', async () => {
const app = await buildTestApp();
const res = await app.inject({
method: 'POST',
url: '/api/screen',
payload: { tickers: Array.from({ length: 51 }, (_, i) => `T${i}`) },
});
assert.equal(res.statusCode, 400);
});