[SEBA-233]
Change to using kafka for GUI events, instead of redis
Change-Id: I205f18632f15b44a5447530af33e94dd8c88674e
diff --git a/spec/kafka.spec.js b/spec/kafka.spec.js
new file mode 100644
index 0000000..17df04e
--- /dev/null
+++ b/spec/kafka.spec.js
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function () {
+ 'use strict';
+
+ const chai = require('chai');
+ const expect = chai.expect;
+ const sinon = require('sinon');
+ const sinonChai = require('sinon-chai');
+ const mockery = require('mockery');
+ chai.use(sinonChai);
+
+ const socketSpy = sinon.spy();
+
+ const mockSocket = {
+ get: () => {
+ return {
+ emit: socketSpy
+ }
+ }
+ };
+
+ const trigger = {}
+
+ const mockStream = {
+ on: (event, cb) => {
+ trigger[event] = cb
+ },
+ consumer: {
+ on: sinon.spy()
+ }
+ }
+
+ const fakekafka = {
+ KafkaConsumer: {
+ createReadStream: () => mockStream
+ }
+ }
+
+ const channelName = 'Site';
+ const msgTopic = 'xos.gui_events';
+
+ describe('The event system', () => {
+
+ before((done) => {
+
+ // Enable mockery to mock objects
+ mockery.enable({
+ warnOnReplace: false,
+ warnOnUnregistered: false
+ });
+
+ // Override the node-rdkafka module with our fakekafka instance
+ mockery.registerMock('node-rdkafka', fakekafka);
+
+ // mock the socketIo client to have a spy
+ mockery.registerMock('./websocket.js', mockSocket);
+
+ require('../src/controllers/kafka.js');
+ setTimeout(() => {
+ done();
+ }, 1000);
+ });
+
+ after(() => {
+ mockery.disable();
+ });
+
+ // run after each test
+ beforeEach(() => {
+ socketSpy.reset();
+ });
+
+ it('should send a websocket event when text Kafka event is received', (done) => {
+ trigger.data({topic:msgTopic,
+ key:channelName,
+ timestamp:1234,
+ value:'I am sending a message.',
+ });
+
+ setTimeout(() => {
+ expect(socketSpy).to.have.been.called;
+ expect(socketSpy).to.have.been.calledWith('update', {
+ model: channelName,
+ msg: 'I am sending a message.'
+ });
+ done();
+ }, 500)
+ });
+
+ it('should send a websocket event when JSON Kafka event is received', (done) => {
+ trigger.data({topic:msgTopic,
+ key:channelName,
+ timestamp:2345,
+ value:JSON.stringify({msg: 'JSON Message'}),
+ });
+
+ setTimeout(() => {
+ expect(socketSpy).to.have.been.called;
+ expect(socketSpy).to.have.been.calledWith('update', {
+ model: channelName,
+ msg: {msg: 'JSON Message'}
+ });
+ done();
+ }, 1000)
+ });
+
+ it('should send a websocket event with msg: Deleted when JSON object has deleted:true', (done) => {
+ trigger.data({topic:msgTopic,
+ key:channelName,
+ timestamp:3456,
+ value:JSON.stringify({msg: 'Deleted', deleted: true}),
+ });
+
+ setTimeout(() => {
+ expect(socketSpy).to.have.been.called;
+ expect(socketSpy).to.have.been.calledWith('remove', {
+ model: channelName,
+ msg: {
+ msg: 'Deleted',
+ deleted: true
+ },
+ deleted: true
+ });
+
+ done();
+ }, 1000)
+ });
+
+ it('should not send a websocket event if the Kafka key is Diag', (done) => {
+ trigger.data({topic:msgTopic,
+ key:'Diag',
+ timestamp:4567,
+ value:JSON.stringify({msg: 'Diag Message'}),
+ });
+
+ setTimeout(() => {
+ expect(socketSpy).not.to.have.been.called;
+ done();
+ }, 1000)
+ });
+
+ });
+})();