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

'use strict'

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

describe('The \'zscan\' method', function () {
  helper.allTests(function (ip, args) {
    describe('using ' + ip, function () {
      var client

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

      it('return values', function (done) {
        if (helper.redisProcess().spawnFailed()) this.skip()
        helper.serverVersionAtLeast.call(this, client, [2, 8, 0])
        var hash = {}
        var set = []
        var zset = ['zset:1']
        for (var i = 0; i < 500; i++) {
          hash['key_' + i] = 'value_' + i
          set.push('member_' + i)
          zset.push(i, 'zMember_' + i)
        }
        client.hmset('hash:1', hash)
        client.sadd('set:1', set)
        client.zadd(zset)
        client.zscan('zset:1', 0, 'MATCH', '*', 'COUNT', 500, function (err, res) {
          assert(!err)
          assert.strictEqual(res.length, 2)
          assert.strictEqual(res[1].length, 1000)
          done()
        })
      })

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