any-db-transaction/tests/nested-queueing.js

Transaction object for Any-DB adapters

var begin = require('../')

require('../test')('Queueing nested transactions', function(conn, t) {
  conn.query('DROP TABLE IF EXISTS transaction_test')
  conn.query('CREATE TABLE transaction_test (a int)')

  var parent = begin(conn)
  parent.query('INSERT INTO transaction_test (a) VALUES (1)')

  var child = begin(parent)
  child.query('INSERT INTO transaction_test (a) VALUES (2)')

  t.plan(2)

  // The point of this test is that the following query against the parent
  // transaction doesn't run until after the child transaction rolls back
  parent.query('SELECT * FROM transaction_test', function(err, res) {
    if (err) throw err
    t.deepEqual(res.rows, [{ a: 1 }])
  })

  child.query('SELECT * FROM transaction_test', function(err, res) {
    if (err) throw err
    t.deepEqual(res.rows, [{ a: 1 }, { a: 2 }])
  })

  child.rollback()
})