node-postgres/test/integration/client/promise-api-tests.js

'use strict'

const helper = require('./test-helper')
const pg = helper.pg

const suite = new helper.Suite()

suite.test('valid connection completes promise', () => {
  const client = new pg.Client()
  return client.connect()
    .then(() => {
      return client.end()
        .then(() => { })
    })
})

suite.test('valid connection completes promise', () => {
  const client = new pg.Client()
  return client.connect()
    .then(() => {
      return client.end()
        .then(() => { })
    })
})

suite.test('invalid connection rejects promise', (done) => {
  const client = new pg.Client({ host: 'alksdjflaskdfj' })
  return client.connect()
    .catch(e => {
      assert(e instanceof Error)
      done()
    })
})

suite.test('connected client does not reject promise after connection', (done) => {
  const client = new pg.Client()
  return client.connect()
    .then(() => {
      setTimeout(() => {
        client.on('error', (e) => {
          assert(e instanceof Error)
          client.end()
          done()
        })
        // manually kill the connection
        client.emit('error', new Error('something bad happened...but not really'))
      }, 50)
    })
})