node-redis/test/commands/script.spec.js

'use strict'

var config = require('../lib/config')
var crypto = require('crypto')
var helper = require('../helper')
var redis = config.redis

describe('The \'script\' method', function () {
  helper.allTests(function (ip, args) {
    var command = 'return 99'
    var commandSha = crypto.createHash('sha1').update(command).digest('hex')

    describe('using ' + ip, function () {
      var client

      beforeEach(function (done) {
        client = redis.createClient.apply(null, args)
        client.once('ready', function () {
          client.flushdb(done)
        })
      })

      afterEach(function () {
        client.end(true)
      })

      it('loads script with client.script(\'load\')', function (done) {
        client.script('load', command, helper.isString(commandSha, done))
      })

      it('allows a loaded script to be evaluated', function (done) {
        client.evalsha(commandSha, 0, helper.isNumber(99, done))
      })

      it('allows a script to be loaded as part of a chained transaction', function (done) {
        client.multi().script('load', command).exec(helper.isDeepEqual([commandSha], done))
      })

      it('allows a script to be loaded using a transaction\'s array syntax', function (done) {
        client.multi([['script', 'load', command]]).exec(helper.isDeepEqual([commandSha], done))
      })
    })
  })
})