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router.spec.ts
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router.spec.ts
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import http from 'http';
import { createServer, proxyMiddleware } from './_utils';
describe('E2E router', () => {
let proxyServer;
let targetServerA;
let targetServerB;
let targetServerC;
beforeEach(() => {
targetServerA = createServer(6001, (req, res, next) => {
res.write('A');
res.end();
});
targetServerB = createServer(6002, (req, res, next) => {
res.write('B');
res.end();
});
targetServerC = createServer(6003, (req, res, next) => {
res.write('C');
res.end();
});
});
afterEach(() => {
targetServerA.close();
targetServerB.close();
targetServerC.close();
});
describe('router with proxyTable', () => {
beforeEach(() => {
proxyServer = createServer(
6000,
proxyMiddleware({
target: 'http://localhost:6001',
router(req) {
return 'http://localhost:6003';
}
})
);
});
afterEach(() => {
proxyServer.close();
});
it('should proxy to: "localhost:6003/api"', done => {
const options = { hostname: 'localhost', port: 6000, path: '/api' };
http.get(options, res => {
res.on('data', chunk => {
const responseBody = chunk.toString();
expect(responseBody).toBe('C');
done();
});
});
});
});
describe('router with proxyTable', () => {
beforeEach(function setupServers() {
proxyServer = createServer(
6000,
proxyMiddleware('/', {
target: 'http://localhost:6001',
router: {
'alpha.localhost:6000': 'http://localhost:6001',
'beta.localhost:6000': 'http://localhost:6002',
'localhost:6000/api': 'http://localhost:6003'
}
})
);
});
afterEach(() => {
proxyServer.close();
});
it('should proxy to option.target', done => {
http.get('http://localhost:6000', res => {
res.on('data', chunk => {
const responseBody = chunk.toString();
expect(responseBody).toBe('A');
done();
});
});
});
it('should proxy when host is "alpha.localhost"', done => {
const options = { hostname: 'localhost', port: 6000, path: '/' } as any;
options.headers = { host: 'alpha.localhost:6000' };
http.get(options, res => {
res.on('data', chunk => {
const responseBody = chunk.toString();
expect(responseBody).toBe('A');
done();
});
});
});
it('should proxy when host is "beta.localhost"', done => {
const options = { hostname: 'localhost', port: 6000, path: '/' } as any;
options.headers = { host: 'beta.localhost:6000' };
http.get(options, res => {
res.on('data', chunk => {
const responseBody = chunk.toString();
expect(responseBody).toBe('B');
done();
});
});
});
it('should proxy with host & path config: "localhost:6000/api"', done => {
const options = { hostname: 'localhost', port: 6000, path: '/api' };
http.get(options, res => {
res.on('data', chunk => {
const responseBody = chunk.toString();
expect(responseBody).toBe('C');
done();
});
});
});
});
});