Files
core2026/app/gateway-api/test/kakaoTransportLimits.test.ts
T

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TypeScript

import { createServer, type Server, type ServerResponse } from 'node:http';
import { gzipSync } from 'node:zlib';
import { afterEach, describe, expect, it } from 'vitest';
import { KakaoOAuthClient } from '../src/auth/kakaoClient.js';
describe('bounded Kakao provider transport', () => {
const servers: Server[] = [];
afterEach(async () => {
for (const server of servers.splice(0)) {
server.closeAllConnections();
await new Promise<void>((resolve) => server.close(() => resolve()));
}
});
const provider = async (respond: (response: ServerResponse) => void, requestTimeoutMs = 1000) => {
const server = createServer((_request, response) => respond(response));
servers.push(server);
await new Promise<void>((resolve) => server.listen(0, '127.0.0.1', resolve));
const address = server.address();
if (!address || typeof address === 'string') throw new Error('Fixture provider listener failed.');
const origin = `http://127.0.0.1:${address.port}`;
return new KakaoOAuthClient({
restKey: 'synthetic-key',
redirectUri: `${origin}/callback`,
apiHost: origin,
oauthHost: origin,
requestTimeoutMs,
});
};
it('retains successful token/account responses and documented recovery responses', async () => {
const client = await provider((res) =>
res.end(
JSON.stringify({
id: 42,
access_token: 'synthetic-token',
expires_in: 3600,
kakao_account: {
has_email: true,
email: 'fixture@example.test',
is_email_valid: true,
is_email_verified: true,
},
})
)
);
expect(await client.exchangeCode('synthetic-code')).toMatchObject({
accessToken: 'synthetic-token',
accessTokenExpiresIn: 3600,
});
expect(await client.getMe('synthetic-token')).toMatchObject({
id: '42',
kakaoAccount: { email: 'fixture@example.test', isEmailVerified: true },
});
});
it('aborts both header and response-body stalls within the configured deadline', async () => {
const silent = await provider(() => {}, 100);
await expect(silent.getMe('synthetic-token')).rejects.toThrow('Kakao HTTP request failed.');
const partial = await provider((res) => {
res.writeHead(200, { 'content-type': 'application/json' });
res.write('{');
}, 100);
await expect(partial.getMe('synthetic-token')).rejects.toThrow('Kakao HTTP request failed.');
});
it('limits decompressed response bytes and rejects malformed JSON without exposing payloads', async () => {
const oversized = await provider((res) => {
res.writeHead(200, { 'content-type': 'application/json', 'content-encoding': 'gzip' });
res.end(gzipSync(JSON.stringify({ payload: 'x'.repeat(2 * 1024 * 1024) })));
});
await expect(oversized.getMe('synthetic-token')).rejects.toThrow('Kakao HTTP request failed.');
const malformed = await provider((res) => res.end('synthetic-sensitive-provider-data'));
await expect(malformed.getMe('synthetic-token')).rejects.toThrow('Kakao HTTP request failed.');
});
it('does not follow redirects or expose provider error details', async () => {
let destinationRequests = 0;
const destination = await provider((res) => {
destinationRequests += 1;
res.end('{}');
});
const destinationUrl = new URL(destination.buildAuthUrl('state', []));
const redirect = await provider((res) => {
res.writeHead(302, { location: destinationUrl.origin });
res.end();
});
await expect(redirect.getMe('synthetic-token')).rejects.toThrow('Kakao HTTP request failed.');
expect(destinationRequests).toBe(0);
const failure = await provider((res) => {
res.writeHead(400);
res.end(JSON.stringify({ msg: 'synthetic-provider-secret', code: -201 }));
});
await expect(failure.signup('synthetic-token')).rejects.toThrow('Kakao signup error.');
});
});