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server.spec.js
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server.spec.js
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const Server = require('../../lib/server')
const BundleUtils = require('../../lib/utils/bundle-utils')
const NetUtils = require('../../lib/utils/net-utils')
const BrowserCollection = require('../../lib/browser_collection')
describe('server', () => {
let mockConfig
let browserCollection
let webServerOnError
let fileListOnReject
let mockLauncher
let mockWebServer
let mockSocketServer
let mockBoundServer
let mockExecutor
let doneSpy
let server = mockConfig = browserCollection = webServerOnError = null
let fileListOnResolve = fileListOnReject = mockLauncher = null
let mockFileList = mockWebServer = mockSocketServer = mockExecutor = doneSpy = null
// Use regular function not arrow so 'this' is mocha 'this'.
beforeEach(function () {
// The first call to new Server() loads plugins and it can take >2000ms.
this.timeout(4000)
browserCollection = new BrowserCollection()
doneSpy = sinon.spy()
fileListOnResolve = fileListOnReject = null
doneSpy = sinon.spy()
mockConfig = {
frameworks: [],
port: 9876,
autoWatch: true,
listenAddress: '127.0.0.1',
hostname: 'localhost',
urlRoot: '/',
browsers: ['fake'],
singleRun: true,
logLevel: 'OFF',
browserDisconnectTolerance: 0
}
server = new Server(mockConfig, doneSpy)
sinon.stub(server._injector, 'invoke').returns([])
mockExecutor = { schedule: () => {} }
mockFileList = {
refresh: sinon.spy(() => {
return {
then (onResolve, onReject) {
fileListOnResolve = onResolve
fileListOnReject = onReject
}
}
})
}
mockLauncher = {
launch: () => {},
markCaptured: () => {},
areAllCaptured: () => false,
restart: () => true,
kill: () => true
}
mockSocketServer = {
close: () => {},
flashPolicyServer: {
close: () => {}
},
sockets: {
sockets: {},
on: () => {},
emit: () => {},
removeAllListeners: () => {}
}
}
mockBoundServer = {
on: sinon.spy((event, callback) => callback && callback()),
listen: sinon.spy((port, listenAddress, callback) => callback && callback()),
close: sinon.spy((callback) => callback && callback()),
address: () => { return { port: 9876 } }
}
mockWebServer = {
on (name, handler) {
if (name === 'error') {
webServerOnError = handler
}
},
listen: sinon.spy((port, arg2, arg3) => {
let callback = null
if (typeof arg2 === 'function') {
callback = arg2
} else if (typeof arg3 === 'function') {
callback = arg3
}
callback && callback()
}),
removeAllListeners: () => {},
close: sinon.spy((callback) => callback && callback())
}
sinon
.stub(server._injector, 'get')
.withArgs('webServer').returns(mockWebServer)
.withArgs('socketServer').returns(mockSocketServer)
webServerOnError = null
})
describe('start', () => {
let config
beforeEach(() => {
config = { port: 9876, listenAddress: '127.0.0.1' }
sinon.spy(BundleUtils, 'bundleResourceIfNotExist')
sinon.stub(NetUtils, 'bindAvailablePort').resolves(mockBoundServer)
sinon.stub(mockBoundServer, 'address').returns({ port: 9877 })
sinon
.stub(server, 'get')
.withArgs('config').returns(config)
})
it('should compile static resources', (done) => {
server.start().then(() => {
expect(BundleUtils.bundleResourceIfNotExist).to.have.been.calledWith('client/main.js', 'static/karma.js')
expect(BundleUtils.bundleResourceIfNotExist).to.have.been.calledWith('context/main.js', 'static/context.js')
done()
})
})
it('should search for available port', (done) => {
server.start().then(() => {
expect(NetUtils.bindAvailablePort).to.have.been.calledWith(9876, '127.0.0.1')
expect(mockBoundServer.address).to.have.been.called
done()
})
})
it('should change config.port to available', (done) => {
expect(config.port).to.be.equal(9876)
server.start().then(() => {
expect(config.port).to.be.equal(9877)
expect(server._boundServer).to.be.equal(mockBoundServer)
done()
})
})
})
describe('start on watch mode', () => {
var config
beforeEach(() => {
config = { port: 9876, listenAddress: '127.0.0.1', singleRun: false }
sinon.spy(BundleUtils, 'bundleResourceIfNotExist')
sinon.stub(NetUtils, 'bindAvailablePort').resolves(mockBoundServer)
sinon.stub(mockBoundServer, 'address').returns({ port: 9877 })
sinon
.stub(server, 'get')
.withArgs('config').returns(config)
})
it('should exit gracefully', (done) => {
server.start()
.then(() => server.stop())
.then(() => done())
})
})
// ============================================================================
// server._start()
// ============================================================================
describe('_start', () => {
beforeEach(() => {
server._boundServer = mockBoundServer
})
it('should start the web server after all files have been preprocessed successfully', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
expect(mockFileList.refresh).to.have.been.called
expect(fileListOnResolve).not.to.be.null
expect(mockWebServer.listen).not.to.have.been.called
expect(server._injector.invoke).not.to.have.been.calledWith(mockLauncher.launch, mockLauncher)
fileListOnResolve()
expect(mockWebServer.listen).to.have.been.calledWith(mockBoundServer, sinon.match.func)
expect(webServerOnError).not.to.be.null
expect(server._injector.invoke).to.have.been.calledWith(mockLauncher.launch, mockLauncher)
})
it('should start the web server after all files have been preprocessed with an error', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
expect(mockFileList.refresh).to.have.been.called
expect(fileListOnReject).not.to.be.null
expect(mockWebServer.listen).not.to.have.been.called
expect(server._injector.invoke).not.to.have.been.calledWith(mockLauncher.launch, mockLauncher)
fileListOnReject()
expect(mockWebServer.listen).to.have.been.calledWith(mockBoundServer, sinon.match.func)
expect(webServerOnError).not.to.be.null
expect(server._injector.invoke).to.have.been.calledWith(mockLauncher.launch, mockLauncher)
})
it('should launch browsers after the web server has started', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
expect(mockWebServer.listen).not.to.have.been.called
expect(webServerOnError).not.to.be.null
expect(server._injector.invoke).not.to.have.been.calledWith(mockLauncher.launch, mockLauncher)
fileListOnResolve()
expect(mockWebServer.listen).to.have.been.calledWith(mockBoundServer, sinon.match.func)
expect(server._injector.invoke).to.have.been.calledWith(mockLauncher.launch, mockLauncher)
})
it('should emit a listening event once server begin accepting connections', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
const listening = sinon.spy()
server.on('listening', listening)
expect(listening).not.to.have.been.called
fileListOnResolve()
expect(listening).to.have.been.calledWith(9876)
})
it('should emit a browsers_ready event once all the browsers are captured', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
const browsersReady = sinon.spy()
server.on('browsers_ready', browsersReady)
mockLauncher.areAllCaptured = () => false
fileListOnResolve()
expect(browsersReady).not.to.have.been.called
mockLauncher.areAllCaptured = () => true
server.emit('browser_register', {})
expect(browsersReady).to.have.been.called
})
it('should emit a browser_register event for each browser added', () => {
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, doneSpy)
const browsersReady = sinon.spy()
server.on('browsers_ready', browsersReady)
mockLauncher.areAllCaptured = () => false
fileListOnResolve()
expect(browsersReady).not.to.have.been.called
mockLauncher.areAllCaptured = () => true
server.emit('browser_register', {})
expect(browsersReady).to.have.been.called
})
it('should exit with error exit code on load errors', (done) => {
mockProcess(process)
server._start(mockConfig, mockLauncher, null, mockFileList, browserCollection, mockExecutor, (exitCode) => {
expect(exitCode).to.have.equal(1)
done()
})
server.loadErrors.push(['TestError', 'Test'])
fileListOnResolve()
function mockProcess (process) {
sinon.stub(process, 'kill').callsFake((pid, ev) => process.emit(ev))
}
})
})
})