Zack Williams | ea89ebb | 2018-09-07 12:37:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 3 | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | (function () { |
| 18 | 'use strict'; |
| 19 | |
| 20 | const chai = require('chai'); |
| 21 | const expect = chai.expect; |
| 22 | const sinon = require('sinon'); |
| 23 | const sinonChai = require('sinon-chai'); |
| 24 | const mockery = require('mockery'); |
| 25 | chai.use(sinonChai); |
| 26 | |
| 27 | const socketSpy = sinon.spy(); |
| 28 | |
| 29 | const mockSocket = { |
| 30 | get: () => { |
| 31 | return { |
| 32 | emit: socketSpy |
| 33 | } |
| 34 | } |
| 35 | }; |
| 36 | |
| 37 | const trigger = {} |
| 38 | |
| 39 | const mockStream = { |
| 40 | on: (event, cb) => { |
| 41 | trigger[event] = cb |
| 42 | }, |
| 43 | consumer: { |
| 44 | on: sinon.spy() |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | const fakekafka = { |
| 49 | KafkaConsumer: { |
| 50 | createReadStream: () => mockStream |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | const channelName = 'Site'; |
| 55 | const msgTopic = 'xos.gui_events'; |
| 56 | |
| 57 | describe('The event system', () => { |
| 58 | |
| 59 | before((done) => { |
| 60 | |
| 61 | // Enable mockery to mock objects |
| 62 | mockery.enable({ |
| 63 | warnOnReplace: false, |
| 64 | warnOnUnregistered: false |
| 65 | }); |
| 66 | |
| 67 | // Override the node-rdkafka module with our fakekafka instance |
| 68 | mockery.registerMock('node-rdkafka', fakekafka); |
| 69 | |
| 70 | // mock the socketIo client to have a spy |
| 71 | mockery.registerMock('./websocket.js', mockSocket); |
| 72 | |
| 73 | require('../src/controllers/kafka.js'); |
| 74 | setTimeout(() => { |
| 75 | done(); |
| 76 | }, 1000); |
| 77 | }); |
| 78 | |
| 79 | after(() => { |
| 80 | mockery.disable(); |
| 81 | }); |
| 82 | |
| 83 | // run after each test |
| 84 | beforeEach(() => { |
| 85 | socketSpy.reset(); |
| 86 | }); |
| 87 | |
| 88 | it('should send a websocket event when text Kafka event is received', (done) => { |
| 89 | trigger.data({topic:msgTopic, |
| 90 | key:channelName, |
| 91 | timestamp:1234, |
| 92 | value:'I am sending a message.', |
| 93 | }); |
| 94 | |
| 95 | setTimeout(() => { |
| 96 | expect(socketSpy).to.have.been.called; |
| 97 | expect(socketSpy).to.have.been.calledWith('update', { |
| 98 | model: channelName, |
| 99 | msg: 'I am sending a message.' |
| 100 | }); |
| 101 | done(); |
| 102 | }, 500) |
| 103 | }); |
| 104 | |
| 105 | it('should send a websocket event when JSON Kafka event is received', (done) => { |
| 106 | trigger.data({topic:msgTopic, |
| 107 | key:channelName, |
| 108 | timestamp:2345, |
| 109 | value:JSON.stringify({msg: 'JSON Message'}), |
| 110 | }); |
| 111 | |
| 112 | setTimeout(() => { |
| 113 | expect(socketSpy).to.have.been.called; |
| 114 | expect(socketSpy).to.have.been.calledWith('update', { |
| 115 | model: channelName, |
| 116 | msg: {msg: 'JSON Message'} |
| 117 | }); |
| 118 | done(); |
| 119 | }, 1000) |
| 120 | }); |
| 121 | |
| 122 | it('should send a websocket event with msg: Deleted when JSON object has deleted:true', (done) => { |
| 123 | trigger.data({topic:msgTopic, |
| 124 | key:channelName, |
| 125 | timestamp:3456, |
| 126 | value:JSON.stringify({msg: 'Deleted', deleted: true}), |
| 127 | }); |
| 128 | |
| 129 | setTimeout(() => { |
| 130 | expect(socketSpy).to.have.been.called; |
| 131 | expect(socketSpy).to.have.been.calledWith('remove', { |
| 132 | model: channelName, |
| 133 | msg: { |
| 134 | msg: 'Deleted', |
| 135 | deleted: true |
| 136 | }, |
| 137 | deleted: true |
| 138 | }); |
| 139 | |
| 140 | done(); |
| 141 | }, 1000) |
| 142 | }); |
| 143 | |
| 144 | it('should not send a websocket event if the Kafka key is Diag', (done) => { |
| 145 | trigger.data({topic:msgTopic, |
| 146 | key:'Diag', |
| 147 | timestamp:4567, |
| 148 | value:JSON.stringify({msg: 'Diag Message'}), |
| 149 | }); |
| 150 | |
| 151 | setTimeout(() => { |
| 152 | expect(socketSpy).not.to.have.been.called; |
| 153 | done(); |
| 154 | }, 1000) |
| 155 | }); |
| 156 | |
| 157 | }); |
| 158 | })(); |