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651 lines
23 KiB
JavaScript
651 lines
23 KiB
JavaScript
'use strict'
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var Buffer = require('safe-buffer').Buffer
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var assert = require('assert')
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var config = require('./lib/config')
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var helper = require('./helper')
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var redis = config.redis
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describe('publish/subscribe', function () {
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helper.allTests(function (ip, args) {
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describe('using ' + ip, function () {
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var pub = null
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var sub = null
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var channel = 'test channel'
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var channel2 = 'test channel 2'
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var message = 'test message'
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beforeEach(function (done) {
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var end = helper.callFuncAfter(done, 2)
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pub = redis.createClient.apply(null, args)
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sub = redis.createClient.apply(null, args)
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pub.once('connect', function () {
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pub.flushdb(function () {
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end()
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})
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})
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sub.once('connect', function () {
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end()
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})
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})
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describe('disable resubscribe', function () {
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beforeEach(function (done) {
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sub.end(false)
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sub = redis.createClient({
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disableResubscribing: true
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})
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sub.once('connect', function () {
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done()
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})
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})
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it('does not fire subscribe events after reconnecting', function (done) {
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var a = false
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sub.on('subscribe', function (chnl, count) {
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if (chnl === channel2) {
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if (a) {
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return done(new Error('Test failed'))
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}
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assert.strictEqual(2, count)
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sub.stream.destroy()
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}
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})
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sub.on('reconnecting', function () {
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a = true
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sub.on('ready', function () {
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assert.strictEqual(sub.commandQueue.length, 0)
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done()
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})
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})
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sub.subscribe(channel, channel2)
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})
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})
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describe('stringNumbers and pub sub', function () {
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beforeEach(function (done) {
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sub.end(false)
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sub = redis.createClient({
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stringNumbers: true
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})
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sub.once('connect', function () {
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done()
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})
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})
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it('does not fire subscribe events after reconnecting', function (done) {
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var i = 0
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var end = helper.callFuncAfter(done, 2)
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sub.on('subscribe', function (chnl, count) {
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assert.strictEqual(typeof count, 'number')
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assert.strictEqual(++i, count)
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})
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sub.on('unsubscribe', function (chnl, count) {
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assert.strictEqual(typeof count, 'number')
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assert.strictEqual(--i, count)
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})
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sub.subscribe(channel, channel2)
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sub.unsubscribe(function (err, res) { // Do not pass a channel here!
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if (err) throw err
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assert.strictEqual(sub.pubSubMode, 2)
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assert.deepEqual(sub.subscriptionSet, {})
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end()
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})
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sub.set('foo', 'bar', helper.isString('OK'))
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sub.subscribe(channel2, end)
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})
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})
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describe('subscribe', function () {
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it('fires a subscribe event for each channel subscribed to even after reconnecting', function (done) {
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var a = false
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sub.on('subscribe', function (chnl, count) {
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if (chnl === channel2) {
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assert.strictEqual(2, count)
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if (a) return done()
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sub.stream.destroy()
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}
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})
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sub.on('reconnecting', function () {
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a = true
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})
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sub.subscribe(channel, channel2)
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})
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it('fires a subscribe event for each channel as buffer subscribed to even after reconnecting', function (done) {
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var a = false
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sub.end(true)
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sub = redis.createClient({
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detectBuffers: true
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})
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sub.on('subscribe', function (chnl, count) {
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if (chnl.inspect() === Buffer.from([0xAA, 0xBB, 0x00, 0xF0]).inspect()) {
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assert.strictEqual(1, count)
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if (a) {
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return done()
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}
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sub.stream.destroy()
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}
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})
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sub.on('reconnecting', function () {
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a = true
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})
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sub.subscribe(Buffer.from([0xAA, 0xBB, 0x00, 0xF0]), channel2)
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})
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it('receives messages on subscribed channel', function (done) {
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var end = helper.callFuncAfter(done, 2)
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sub.on('subscribe', function (chnl, count) {
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pub.publish(channel, message, function (err, res) {
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helper.isNumber(1)(err, res)
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end()
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})
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})
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sub.on('message', function (chnl, msg) {
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assert.strictEqual(chnl, channel)
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assert.strictEqual(msg, message)
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end()
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})
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sub.subscribe(channel)
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})
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it('receives messages if subscribe is called after unsubscribe', function (done) {
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var end = helper.callFuncAfter(done, 2)
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sub.once('subscribe', function (chnl, count) {
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pub.publish(channel, message, function (err, res) {
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helper.isNumber(1)(err, res)
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end()
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})
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})
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sub.on('message', function (chnl, msg) {
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assert.strictEqual(chnl, channel)
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assert.strictEqual(msg, message)
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end()
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})
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sub.subscribe(channel)
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sub.unsubscribe(channel)
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sub.subscribe(channel)
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})
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it('handles SUB UNSUB MSG SUB', function (done) {
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sub.subscribe('chan8')
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sub.subscribe('chan9')
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sub.unsubscribe('chan9')
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pub.publish('chan8', 'something')
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sub.subscribe('chan9', done)
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})
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it('handles SUB UNSUB MSG SUB 2', function (done) {
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sub.psubscribe('abc*', helper.isDeepEqual([1, ['abc*']]))
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sub.subscribe('xyz')
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sub.unsubscribe('xyz')
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pub.publish('abcd', 'something')
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sub.subscribe('xyz', done)
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})
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it('emits end event if quit is called from within subscribe', function (done) {
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sub.on('end', done)
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sub.on('subscribe', function (chnl, count) {
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sub.quit()
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})
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sub.subscribe(channel)
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})
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it('subscribe; close; resubscribe with prototype inherited property names', function (done) {
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var count = 0
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var channels = ['channel 1', 'channel 2']
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var msg = ['hi from channel 1', 'hi from channel 2']
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sub.on('message', function (channel, message) {
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var n = Math.max(count - 1, 0)
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assert.strictEqual(channel, channels[n])
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assert.strictEqual(message, msg[n])
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if (count === 2) return done()
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sub.stream.end()
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})
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sub.select(3)
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sub.subscribe(channels)
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sub.on('ready', function (err, results) {
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if (err) throw err
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pub.publish(channels[count], msg[count])
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count++
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})
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pub.publish(channels[count], msg[count])
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})
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})
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describe('multiple subscribe / unsubscribe commands', function () {
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it('reconnects properly with pub sub and select command', function (done) {
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var end = helper.callFuncAfter(done, 2)
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sub.select(3)
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sub.set('foo', 'bar')
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sub.set('failure', helper.isError()) // Triggering a warning while subscribing should work
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sub.mget('foo', 'bar', 'baz', 'hello', 'world', helper.isDeepEqual(['bar', null, null, null, null]))
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sub.subscribe('somechannel', 'another channel', function (err, res) {
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if (err) throw err
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end()
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sub.stream.destroy()
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})
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assert(sub.ready)
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sub.on('ready', function () {
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sub.unsubscribe()
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sub.del('foo')
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sub.info(end)
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})
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})
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it('should not go into pubsub mode with unsubscribe commands', function (done) {
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sub.on('unsubscribe', function (msg) {
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// The unsubscribe should not be triggered, as there was no corresponding channel
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throw new Error('Test failed')
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})
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sub.set('foo', 'bar')
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sub.unsubscribe(helper.isDeepEqual([0, []]))
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sub.del('foo', done)
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})
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it('handles multiple channels with the same channel name properly, even with buffers', function (done) {
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var channels = ['a', 'b', 'a', Buffer.from('a'), 'c', 'b']
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var subscribedChannels = [1, 2, 2, 2, 3, 3]
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var i = 0
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sub.subscribe(channels)
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sub.on('subscribe', function (channel, count) {
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if (Buffer.isBuffer(channel)) {
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assert.strictEqual(channel.inspect(), Buffer.from(channels[i]).inspect())
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} else {
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assert.strictEqual(channel, channels[i].toString())
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}
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assert.strictEqual(count, subscribedChannels[i])
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i++
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})
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sub.unsubscribe('a', 'c', 'b')
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sub.get('foo', done)
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})
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it('should only resubscribe to channels not unsubscribed earlier on a reconnect', function (done) {
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sub.subscribe('/foo', '/bar')
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sub.batch().unsubscribe(['/bar'], function () {
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pub.pubsub('channels', helper.isDeepEqual(['/foo'], function () {
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sub.stream.destroy()
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sub.once('ready', function () {
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pub.pubsub('channels', helper.isDeepEqual(['/foo'], function () {
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sub.unsubscribe('/foo', done)
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}))
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})
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}))
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}).exec()
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})
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it('unsubscribes, subscribes, unsubscribes... single and multiple entries mixed. Withouth callbacks', function (done) {
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function subscribe (channels) {
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sub.unsubscribe(helper.isNull)
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sub.subscribe(channels, helper.isNull)
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}
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var all = false
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var subscribeMsg = ['1', '3', '2', '5', 'test', 'bla']
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sub.on('subscribe', function (msg, count) {
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subscribeMsg.splice(subscribeMsg.indexOf(msg), 1)
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if (subscribeMsg.length === 0 && all) {
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assert.strictEqual(count, 3)
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done()
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}
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})
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var unsubscribeMsg = ['1', '3', '2']
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sub.on('unsubscribe', function (msg, count) {
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unsubscribeMsg.splice(unsubscribeMsg.indexOf(msg), 1)
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if (unsubscribeMsg.length === 0) {
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assert.strictEqual(count, 0)
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all = true
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}
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})
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subscribe(['1', '3'])
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subscribe(['2'])
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subscribe(['5', 'test', 'bla'])
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})
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it('unsubscribes, subscribes, unsubscribes... single and multiple entries mixed. Without callbacks', function (done) {
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function subscribe (channels) {
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sub.unsubscribe()
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sub.subscribe(channels)
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}
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var all = false
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var subscribeMsg = ['1', '3', '2', '5', 'test', 'bla']
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sub.on('subscribe', function (msg, count) {
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subscribeMsg.splice(subscribeMsg.indexOf(msg), 1)
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if (subscribeMsg.length === 0 && all) {
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assert.strictEqual(count, 3)
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done()
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}
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})
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var unsubscribeMsg = ['1', '3', '2']
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sub.on('unsubscribe', function (msg, count) {
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unsubscribeMsg.splice(unsubscribeMsg.indexOf(msg), 1)
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if (unsubscribeMsg.length === 0) {
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assert.strictEqual(count, 0)
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all = true
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}
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})
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subscribe(['1', '3'])
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subscribe(['2'])
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subscribe(['5', 'test', 'bla'])
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})
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it('unsubscribes, subscribes, unsubscribes... single and multiple entries mixed. Without callback and concret channels', function (done) {
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function subscribe (channels) {
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sub.unsubscribe(channels)
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sub.unsubscribe(channels)
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sub.subscribe(channels)
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}
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var all = false
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var subscribeMsg = ['1', '3', '2', '5', 'test', 'bla']
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sub.on('subscribe', function (msg, count) {
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subscribeMsg.splice(subscribeMsg.indexOf(msg), 1)
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if (subscribeMsg.length === 0 && all) {
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assert.strictEqual(count, 6)
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done()
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}
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})
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var unsubscribeMsg = ['1', '3', '2', '5', 'test', 'bla']
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sub.on('unsubscribe', function (msg, count) {
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var pos = unsubscribeMsg.indexOf(msg)
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if (pos !== -1) { unsubscribeMsg.splice(pos, 1) }
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if (unsubscribeMsg.length === 0) {
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all = true
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}
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})
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subscribe(['1', '3'])
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subscribe(['2'])
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subscribe(['5', 'test', 'bla'])
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})
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it('unsubscribes, subscribes, unsubscribes... with pattern matching', function (done) {
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function subscribe (channels, callback) {
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sub.punsubscribe('prefix:*', helper.isNull)
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sub.psubscribe(channels, function (err, res) {
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helper.isNull(err)
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if (callback) callback(err, res)
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})
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}
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var all = false
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var end = helper.callFuncAfter(done, 8)
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var subscribeMsg = ['prefix:*', 'prefix:3', 'prefix:2', '5', 'test:a', 'bla']
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sub.on('psubscribe', function (msg, count) {
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subscribeMsg.splice(subscribeMsg.indexOf(msg), 1)
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if (subscribeMsg.length === 0) {
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assert.strictEqual(count, 5)
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all = true
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}
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})
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var rest = 1
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var unsubscribeMsg = ['prefix:*', 'prefix:*', 'prefix:*', '*']
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sub.on('punsubscribe', function (msg, count) {
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unsubscribeMsg.splice(unsubscribeMsg.indexOf(msg), 1)
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if (all) {
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assert.strictEqual(unsubscribeMsg.length, 0)
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assert.strictEqual(count, rest--) // Print the remaining channels
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end()
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} else {
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assert.strictEqual(msg, 'prefix:*')
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assert.strictEqual(count, rest++ - 1)
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}
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})
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sub.on('pmessage', function (pattern, channel, msg) {
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assert.strictEqual(msg, 'test')
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assert.strictEqual(pattern, 'prefix:*')
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assert.strictEqual(channel, 'prefix:1')
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end()
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})
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subscribe(['prefix:*', 'prefix:3'], function () {
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pub.publish('prefix:1', Buffer.from('test'), function () {
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subscribe(['prefix:2'])
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subscribe(['5', 'test:a', 'bla'], function () {
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assert(all)
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})
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sub.punsubscribe(function (err, res) {
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assert(!err)
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assert.deepStrictEqual(res, [0, ['prefix:3', 'prefix:2', '5', 'test:a', 'bla']])
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assert(all)
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all = false // Make sure the callback is actually after the emit
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end()
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})
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sub.pubsub('channels', helper.isDeepEqual([], end))
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})
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})
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})
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})
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describe('unsubscribe', function () {
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it('fires an unsubscribe event', function (done) {
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sub.on('subscribe', function (chnl, count) {
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sub.unsubscribe(channel)
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})
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sub.subscribe(channel)
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sub.on('unsubscribe', function (chnl, count) {
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assert.strictEqual(chnl, channel)
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assert.strictEqual(count, 0)
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return done()
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})
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})
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it('puts client back into write mode', function (done) {
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sub.on('subscribe', function (chnl, count) {
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sub.unsubscribe(channel)
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})
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sub.subscribe(channel)
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sub.on('unsubscribe', function (chnl, count) {
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pub.incr('foo', helper.isNumber(1, done))
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})
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})
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it('sub executes callback when unsubscribe is called and there are no subscriptions', function (done) {
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sub.unsubscribe(helper.isDeepEqual([0, []], done))
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})
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it('pub executes callback when unsubscribe is called and there are no subscriptions', function (done) {
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pub.unsubscribe(helper.isDeepEqual([0, []]))
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pub.get('foo', done)
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})
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})
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describe('psubscribe', function () {
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it('allows all channels to be subscribed to using a * pattern', function (done) {
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var sub2 = redis.createClient({
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returnBuffers: true
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})
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sub.subscribe('/foo', function () {
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sub2.on('ready', function () {
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sub2.batch().psubscribe('*', helper.isDeepEqual([1, ['*']])).exec()
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sub2.subscribe('/foo', function () {
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pub.pubsub('numsub', '/foo', helper.isDeepEqual(['/foo', 2]))
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// sub2 is counted twice as it subscribed with psubscribe and subscribe
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pub.publish('/foo', 'hello world', helper.isNumber(3))
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})
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sub2.on('pmessage', function (pattern, channel, message) {
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assert.strictEqual(pattern.inspect(), Buffer.from('*').inspect())
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assert.strictEqual(channel.inspect(), Buffer.from('/foo').inspect())
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assert.strictEqual(message.inspect(), Buffer.from('hello world').inspect())
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sub2.quit(done)
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})
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})
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})
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})
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it('allows to listen to pmessageBuffer and pmessage', function (done) {
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var end = helper.callFuncAfter(done, 6)
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var data = Array(10000).join('äüs^öéÉÉ`e')
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sub.set('foo', data, function () {
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sub.get('foo')
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sub.stream.once('data', function () {
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assert.strictEqual(sub.messageBuffers, false)
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assert.strictEqual(sub.shouldBuffer, false)
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sub.on('pmessageBuffer', function (pattern, channel, message) {
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assert.strictEqual(pattern.inspect(), Buffer.from('*').inspect())
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assert.strictEqual(channel.inspect(), Buffer.from('/foo').inspect())
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sub.quit(end)
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})
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assert.notStrictEqual(sub.messageBuffers, sub.buffers)
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})
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var batch = sub.batch()
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batch.psubscribe('*')
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batch.subscribe('/foo')
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batch.unsubscribe('/foo')
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batch.unsubscribe(helper.isDeepEqual([1, []]))
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batch.subscribe(['/foo'], helper.isDeepEqual([2, ['/foo']]))
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batch.exec(function () {
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// There's one subscriber to this channel
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pub.pubsub('numsub', '/foo', helper.isDeepEqual(['/foo', 1], end))
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// There's exactly one channel that is listened too
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pub.pubsub('channels', helper.isDeepEqual(['/foo'], end))
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// One pattern is active
|
|
pub.pubsub('numpat', helper.isNumber(1, end))
|
|
pub.publish('/foo', 'hello world', helper.isNumber(2))
|
|
})
|
|
// Either messageBuffers or buffers has to be true, but not both at the same time
|
|
sub.on('pmessage', function (pattern, channel, message) {
|
|
assert.strictEqual(pattern, '*')
|
|
assert.strictEqual(channel, '/foo')
|
|
assert.strictEqual(message, 'hello world')
|
|
end()
|
|
})
|
|
sub.on('message', function (channel, message) {
|
|
assert.strictEqual(channel, '/foo')
|
|
assert.strictEqual(message, 'hello world')
|
|
end()
|
|
})
|
|
})
|
|
})
|
|
})
|
|
|
|
describe('punsubscribe', function () {
|
|
it('does not complain when punsubscribe is called and there are no subscriptions', function () {
|
|
sub.punsubscribe()
|
|
})
|
|
|
|
it('executes callback when punsubscribe is called and there are no subscriptions', function (done) {
|
|
pub.batch().punsubscribe(helper.isDeepEqual([0, []])).exec(done)
|
|
})
|
|
})
|
|
|
|
describe('fail for other commands while in pub sub mode', function () {
|
|
it('return error if only pub sub commands are allowed', function (done) {
|
|
sub.subscribe('channel')
|
|
// Ping is allowed even if not listed as such!
|
|
sub.ping(function (err, res) {
|
|
assert.strictEqual(err, null)
|
|
assert.strictEqual(res[0], 'pong')
|
|
})
|
|
// Get is forbidden
|
|
sub.get('foo', function (err, res) {
|
|
assert(/^ERR only \(P\)SUBSCRIBE \/ \(P\)UNSUBSCRIBE/.test(err.message))
|
|
assert.strictEqual(err.command, 'GET')
|
|
})
|
|
// Quit is allowed
|
|
sub.quit(done)
|
|
})
|
|
|
|
it('emit error if only pub sub commands are allowed without callback', function (done) {
|
|
sub.subscribe('channel')
|
|
sub.on('error', function (err) {
|
|
assert(/^ERR only \(P\)SUBSCRIBE \/ \(P\)UNSUBSCRIBE/.test(err.message))
|
|
assert.strictEqual(err.command, 'GET')
|
|
done()
|
|
})
|
|
sub.get('foo')
|
|
})
|
|
})
|
|
|
|
it('should not publish a message multiple times per command', function (done) {
|
|
var published = {}
|
|
|
|
function subscribe (message) {
|
|
sub.removeAllListeners('subscribe')
|
|
sub.removeAllListeners('message')
|
|
sub.removeAllListeners('unsubscribe')
|
|
sub.on('subscribe', function () {
|
|
pub.publish('/foo', message)
|
|
})
|
|
sub.on('message', function (channel, message) {
|
|
if (published[message]) {
|
|
done(new Error('Message published more than once.'))
|
|
}
|
|
published[message] = true
|
|
})
|
|
sub.on('unsubscribe', function (channel, count) {
|
|
assert.strictEqual(count, 0)
|
|
})
|
|
sub.subscribe('/foo')
|
|
}
|
|
|
|
subscribe('hello')
|
|
|
|
setTimeout(function () {
|
|
sub.unsubscribe()
|
|
setTimeout(function () {
|
|
subscribe('world')
|
|
setTimeout(done, 50)
|
|
}, 40)
|
|
}, 40)
|
|
})
|
|
|
|
it('should not publish a message without any publish command', function (done) {
|
|
pub.set('foo', 'message')
|
|
pub.set('bar', 'hello')
|
|
pub.mget('foo', 'bar')
|
|
pub.subscribe('channel', function () {
|
|
setTimeout(done, 50)
|
|
})
|
|
pub.on('message', function (msg) {
|
|
done(new Error('This message should not have been published: ' + msg))
|
|
})
|
|
})
|
|
|
|
it('arguments variants', function (done) {
|
|
sub.batch()
|
|
.info(['stats'])
|
|
.info()
|
|
.client('KILL', ['type', 'pubsub'])
|
|
.client('KILL', ['type', 'pubsub'], function () {})
|
|
.unsubscribe()
|
|
.psubscribe(['pattern:*'])
|
|
.punsubscribe('unknown*')
|
|
.punsubscribe(['pattern:*'])
|
|
.exec(function (err, res) {
|
|
if (err) throw err
|
|
sub.client('kill', ['type', 'pubsub'])
|
|
sub.psubscribe('*')
|
|
sub.punsubscribe('pa*')
|
|
sub.punsubscribe(['a', '*'], done)
|
|
})
|
|
})
|
|
|
|
afterEach(function () {
|
|
// Explicitly ignore still running commands
|
|
pub.end(false)
|
|
sub.end(false)
|
|
})
|
|
})
|
|
})
|
|
})
|