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Created March 7, 2018 06:46
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server.test.ts
import request from 'supertest';
import app from './app';
const mockListen = jest.fn();
app.listen = mockListen;
afterEach(() => {
mockListen.mockReset();
});
test('Server works', async () => {
require('./server');
expect(mockListen.mock.calls.length).toBe(1);
expect(mockListen.mock.calls[0][0]).toBe(process.env.PORT || 3000);
});
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