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

'use strict'

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

describe('The \'del\' 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('allows a single key to be deleted', function (done) {
        client.set('foo', 'bar')
        client.del('foo', helper.isNumber(1))
        client.get('foo', helper.isNull(done))
      })

      it('allows del to be called on a key that does not exist', function (done) {
        client.del('foo', helper.isNumber(0, done))
      })

      it('allows multiple keys to be deleted', function (done) {
        client.mset('foo', 'bar', 'apple', 'banana')
        client.del('foo', 'apple', helper.isNumber(2))
        client.get('foo', helper.isNull())
        client.get('apple', helper.isNull(done))
      })

      it('allows multiple keys to be deleted with the array syntax', function (done) {
        client.mset('foo', 'bar', 'apple', 'banana')
        client.del(['foo', 'apple'], helper.isNumber(2))
        client.get('foo', helper.isNull())
        client.get('apple', helper.isNull(done))
      })

      it('allows multiple keys to be deleted with the array syntax and no callback', function (done) {
        client.mset('foo', 'bar', 'apple', 'banana')
        client.del(['foo', 'apple'])
        client.get('foo', helper.isNull())
        client.get('apple', helper.isNull(done))
      })

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