How to use ProcessLauncher method in Karma
Best JavaScript code snippet using karma
process.spec.js
Source:process.spec.js 
1const path = require('path')2const _ = require('lodash')3const BaseLauncher = require('../../../lib/launchers/base')4const RetryLauncher = require('../../../lib/launchers/retry')5const CaptureTimeoutLauncher = require('../../../lib/launchers/capture_timeout')6const ProcessLauncher = require('../../../lib/launchers/process')7const EventEmitter = require('../../../lib/events').EventEmitter8const createMockTimer = require('../mocks/timer')9describe('launchers/process.js', () => {10 let emitter11 let mockSpawn12 let mockTempDir13 let launcher14 const BROWSER_PATH = path.normalize('/usr/bin/browser')15 beforeEach(() => {16 emitter = new EventEmitter()17 launcher = new BaseLauncher('fake-id', emitter)18 mockSpawn = sinon.spy(function (cmd, args) {19 const process = new EventEmitter()20 process.stdout = new EventEmitter()21 process.stderr = new EventEmitter()22 process.kill = sinon.spy()23 process.exitCode = null24 mockSpawn._processes.push(process)25 return process26 })27 mockSpawn._processes = []28 mockTempDir = {29 getPath: (suffix) => `/temp${suffix}`,30 create: sinon.spy(),31 remove: sinon.spy()32 }33 })34 it('should create a temp directory', () => {35 ProcessLauncher.call(launcher, mockSpawn, mockTempDir)36 launcher._getCommand = () => null37 launcher.start('http://host:9988/')38 expect(launcher._tempDir).to.equal('/temp/karma-fake-id')39 expect(mockTempDir.create).to.have.been.calledWith('/temp/karma-fake-id')40 })41 it('should remove the temp directory', (done) => {42 ProcessLauncher.call(launcher, mockSpawn, mockTempDir)43 launcher._getCommand = () => null44 launcher.start('http://host:9988/')45 launcher.kill()46 _.defer(() => {47 expect(mockTempDir.remove).to.have.been.called48 expect(mockTempDir.remove.args[0][0]).to.equal('/temp/karma-fake-id')49 done()50 })51 })52 describe('_normalizeCommand', () => {53 it('should remove quotes from the cmd', () => {54 ProcessLauncher.call(launcher, null, mockTempDir)55 expect(launcher._normalizeCommand('"/bin/brow ser"')).to.equal(path.normalize('/bin/brow ser'))56 expect(launcher._normalizeCommand("'/bin/brow ser'")).to.equal57 path.normalize('/bin/brow ser')58 expect(launcher._normalizeCommand('`/bin/brow ser`')).to.equal(path.normalize('/bin/brow ser'))59 })60 })61 describe('with RetryLauncher', () => {62 it('should handle spawn ENOENT error and not even retry', (done) => {63 ProcessLauncher.call(launcher, mockSpawn, mockTempDir)64 RetryLauncher.call(launcher, 2)65 launcher._getCommand = () => BROWSER_PATH66 const failureSpy = sinon.spy()67 emitter.on('browser_process_failure', failureSpy)68 launcher.start('http://host:9876/')69 mockSpawn._processes[0].emit('error', {code: 'ENOENT'})70 mockSpawn._processes[0].emit('exit', 1)71 mockTempDir.remove.callArg(1)72 _.defer(() => {73 expect(launcher.state).to.equal(launcher.STATE_FINISHED)74 expect(failureSpy).to.have.been.called75 done()76 })77 })78 })79 // higher level tests with Retry and CaptureTimeout launchers80 describe('flow', () => {81 let failureSpy82 let mockTimer = failureSpy = null83 beforeEach(() => {84 mockTimer = createMockTimer()85 CaptureTimeoutLauncher.call(launcher, mockTimer, 100)86 ProcessLauncher.call(launcher, mockSpawn, mockTempDir, mockTimer)87 RetryLauncher.call(launcher, 2)88 launcher._getCommand = () => BROWSER_PATH89 failureSpy = sinon.spy()90 emitter.on('browser_process_failure', failureSpy)91 })92 // the most common scenario, when everything works fine93 it('start -> capture -> kill', (done) => {94 // start the browser95 launcher.start('http://localhost/')96 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])97 // mark captured98 launcher.markCaptured()99 // kill it100 const killingLauncher = launcher.kill()101 expect(launcher.state).to.equal(launcher.STATE_BEING_KILLED)102 expect(mockSpawn._processes[0].kill).to.have.been.called103 // process exits104 mockSpawn._processes[0].emit('exit', 0)105 mockTempDir.remove.callArg(1)106 killingLauncher.done(() => {107 expect(launcher.state).to.equal(launcher.STATE_FINISHED)108 done()109 })110 })111 // when the browser fails to get captured in default timeout, it should restart112 it('start -> timeout -> restart', (done) => {113 const stdOutSpy = sinon.spy(launcher, '_onStdout')114 const stdErrSpy = sinon.spy(launcher, '_onStderr')115 // start116 launcher.start('http://localhost/')117 // expect starting the process118 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])119 const browserProcess = mockSpawn._processes.shift()120 const expectedStdoutString = 'starting...'121 const expectedStderrString = 'Oops...there was a problem'122 browserProcess.stdout.emit('data', expectedStdoutString)123 browserProcess.stderr.emit('data', expectedStderrString)124 // timeout125 mockTimer.wind(101)126 // We must've caught some output127 expect(stdOutSpy).to.have.been.called128 expect(stdErrSpy).to.have.been.called129 stdOutSpy.calledWith(expectedStdoutString)130 // expect killing browser131 expect(browserProcess.kill).to.have.been.called132 browserProcess.emit('exit', 0)133 mockTempDir.remove.callArg(1)134 mockSpawn.resetHistory()135 _.defer(() => {136 // expect re-starting137 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])138 expect(failureSpy).not.to.have.been.called139 done()140 })141 })142 it('start -> timeout -> 3xrestart -> failure', (done) => {143 // start144 launcher.start('http://localhost/')145 // expect starting146 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])147 let browserProcess = mockSpawn._processes.shift()148 mockSpawn.resetHistory()149 // timeout - first time150 mockTimer.wind(101)151 // expect killing browser152 expect(browserProcess.kill).to.have.been.called153 browserProcess.emit('exit', 0)154 mockTempDir.remove.callArg(1)155 mockTempDir.remove.resetHistory()156 _.defer(() => {157 // expect re-starting158 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])159 browserProcess = mockSpawn._processes.shift()160 expect(failureSpy).not.to.have.been.called161 mockSpawn.resetHistory()162 // timeout - second time163 mockTimer.wind(101)164 // expect killing browser165 expect(browserProcess.kill).to.have.been.called166 browserProcess.emit('exit', 0)167 mockTempDir.remove.callArg(1)168 mockTempDir.remove.resetHistory()169 _.defer(() => {170 // expect re-starting171 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])172 browserProcess = mockSpawn._processes.shift()173 expect(failureSpy).not.to.have.been.called174 mockSpawn.resetHistory()175 // timeout - third time176 mockTimer.wind(201)177 // expect killing browser178 expect(browserProcess.kill).to.have.been.called179 browserProcess.emit('exit', 0)180 mockTempDir.remove.callArg(1)181 mockTempDir.remove.resetHistory()182 _.defer(() => {183 expect(mockSpawn).to.not.have.been.called184 expect(failureSpy).to.have.been.called185 done()186 })187 })188 })189 })190 // when the browser fails to start, it should restart191 it('start -> crash -> restart', (done) => {192 // start193 launcher.start('http://localhost/')194 // expect starting the process195 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])196 let browserProcess = mockSpawn._processes.shift()197 mockSpawn.resetHistory()198 // crash199 browserProcess.emit('exit', 1)200 mockTempDir.remove.callArg(1)201 mockTempDir.remove.resetHistory()202 _.defer(() => {203 // expect re-starting204 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])205 browserProcess = mockSpawn._processes.shift()206 expect(failureSpy).not.to.have.been.called207 done()208 })209 })210 })211 // higher level tests - process kill timeout212 describe('process-kill-timeout', () => {213 let failureSpy214 let mockTimer = null215 beforeEach(() => {216 mockTimer = createMockTimer()217 CaptureTimeoutLauncher.call(launcher, mockTimer, 100)218 ProcessLauncher.call(launcher, mockSpawn, mockTempDir, mockTimer, 300)219 RetryLauncher.call(launcher, 2)220 launcher._getCommand = () => BROWSER_PATH221 failureSpy = sinon.spy()222 emitter.on('browser_process_failure', failureSpy)223 })224 // when the browser fails to get captured in default timeout, it should restart225 it('start -> capture_timeout -> kill -> process_kill_timeout -> sigkill', () => {226 // start227 launcher.start('http://localhost/')228 // expect starting the process229 expect(mockSpawn).to.have.been.calledWith(BROWSER_PATH, ['http://localhost/?id=fake-id'])230 const browserProcess = mockSpawn._processes.shift()231 // timeout232 mockTimer.wind(101)233 // expect killing browser234 expect(browserProcess.kill).to.have.been.called235 // processKillTimeout not reached yet236 mockTimer.wind(299)237 // SIGKILL not called yet238 expect(browserProcess.kill.withArgs('SIGKILL')).not.to.have.been.called239 // processKillTimeout240 mockTimer.wind(301)241 // expect killing with SIGKILL242 expect(browserProcess.kill.withArgs('SIGKILL')).to.have.been.called243 browserProcess.emit('exit', 0)244 mockTempDir.remove.callArg(1)245 mockTempDir.remove.resetHistory()246 mockSpawn.resetHistory()247 })248 })...
processLauncher.js
Source:processLauncher.js
...12describe('ProcessWrapper', () => {13 let processLauncher;14 before(() => {15 sinon.stub(ProcessLauncher.prototype, '_subscribeToMessages');16 processLauncher = new ProcessLauncher({17 embark: embarkObj,18 logger: logger,19 modulePath: path.join(__dirname, 'test.js'),20 events21 });22 });23 describe('on', () => {24 beforeEach(() => {25 processLauncher.subscriptions = {};26 });27 it('should create an array for the key value', function () {28 processLauncher.on('test', 'value', 'myCallback');29 assert.deepEqual(processLauncher.subscriptions, {30 "test": [...
process.js
Source:process.js
1var path = require('path')2var log = require('../logger').create('launcher')3var env = process.env4var ProcessLauncher = function (spawn, tempDir, timer, processKillTimeout) {5 var self = this6 var onExitCallback7 var killTimeout = processKillTimeout || 20008 this._tempDir = tempDir.getPath('/karma-' + this.id.toString())9 this.on('start', function (url) {10 tempDir.create(self._tempDir)11 self._start(url)12 })13 this.on('kill', function (done) {14 if (!self._process) {15 return process.nextTick(done)16 }17 onExitCallback = done18 self._process.kill()19 self._killTimer = timer.setTimeout(self._onKillTimeout, killTimeout)20 })21 this._start = function (url) {22 self._execCommand(self._getCommand(), self._getOptions(url))23 }24 this._getCommand = function () {25 return env[self.ENV_CMD] || self.DEFAULT_CMD[process.platform]26 }27 this._getOptions = function (url) {28 return [url]29 }30 // Normalize the command, remove quotes (spawn does not like them).31 this._normalizeCommand = function (cmd) {32 if (cmd.charAt(0) === cmd.charAt(cmd.length - 1) && '\'`"'.indexOf(cmd.charAt(0)) !== -1) {33 cmd = cmd.substring(1, cmd.length - 1)34 log.warn('The path should not be quoted.\n Normalized the path to %s', cmd)35 }36 return path.normalize(cmd)37 }38 this._execCommand = function (cmd, args) {39 if (!cmd) {40 log.error('No binary for %s browser on your platform.\n ' +41 'Please, set "%s" env variable.', self.name, self.ENV_CMD)42 // disable restarting43 self._retryLimit = -144 return self._clearTempDirAndReportDone('no binary')45 }46 cmd = this._normalizeCommand(cmd)47 log.debug(cmd + ' ' + args.join(' '))48 self._process = spawn(cmd, args)49 var errorOutput = ''50 self._process.on('exit', function (code) {51 self._onProcessExit(code, errorOutput)52 })53 self._process.on('error', function (err) {54 if (err.code === 'ENOENT') {55 self._retryLimit = -156 errorOutput = 'Can not find the binary ' + cmd + '\n\t' +57 'Please set env variable ' + self.ENV_CMD58 } else {59 errorOutput += err.toString()60 }61 })62 }63 this._onProcessExit = function (code, errorOutput) {64 log.debug('Process %s exited with code %d', self.name, code)65 var error = null66 if (self.state === self.STATE_BEING_CAPTURED) {67 log.error('Cannot start %s\n\t%s', self.name, errorOutput)68 error = 'cannot start'69 }70 if (self.state === self.STATE_CAPTURED) {71 log.error('%s crashed.\n\t%s', self.name, errorOutput)72 error = 'crashed'73 }74 self._process = null75 if (self._killTimer) {76 timer.clearTimeout(self._killTimer)77 self._killTimer = null78 }79 self._clearTempDirAndReportDone(error)80 }81 this._clearTempDirAndReportDone = function (error) {82 tempDir.remove(self._tempDir, function () {83 self._done(error)84 if (onExitCallback) {85 onExitCallback()86 onExitCallback = null87 }88 })89 }90 this._onKillTimeout = function () {91 if (self.state !== self.STATE_BEING_KILLED && self.state !== self.STATE_BEING_FORCE_KILLED) {92 return93 }94 log.warn('%s was not killed in %d ms, sending SIGKILL.', self.name, killTimeout)95 self._process.kill('SIGKILL')96 // NOTE: https://github.com/karma-runner/karma/pull/118497 // NOTE: SIGKILL is just a signal. Processes should never ignore it, but they can.98 // If a process gets into a state where it doesn't respond in a reasonable amount of time99 // Karma should warn, and continue as though the kill succeeded.100 // This a certainly suboptimal, but it is better than having the test harness hang waiting101 // for a zombie child process to exit.102 self._killTimer = timer.setTimeout(function () {103 log.warn('%s was not killed by SIGKILL in %d ms, continuing.', self.name, killTimeout)104 self._onProcessExit(-1, '')105 }, killTimeout)106 }107}108ProcessLauncher.decoratorFactory = function (timer) {109 return function (launcher, processKillTimeout) {110 var spawn = require('child_process').spawn111 var spawnWithoutOutput = function () {112 var proc = spawn.apply(null, arguments)113 proc.stdout.resume()114 proc.stderr.resume()115 return proc116 }117 ProcessLauncher.call(launcher, spawnWithoutOutput, require('../temp_dir'), timer, processKillTimeout)118 }119}...
index.js
Source:index.js
1var config = require('./config');2var router = require('./routers/')(config);3var serverFactory = require('./servers/serverFactory')(config, router);4var server = serverFactory.create();5var processLauncher = require('./servers/processLauncher')(server, config);...
Using AI Code Generation
1var karma = require('karma').server;2karma.start({3}, function(exitCode) {4console.log('Karma has exited with ' + exitCode);5process.exit(exitCode);6});7module.exports = function(config) {8config.set({
Using AI Code Generation
1var karma = require('karma').server;2karma.start({3}, function(exitCode) {4 console.log('Karma has exited with ' + exitCode);5 process.exit(exitCode);6});7module.exports = function(config) {8 config.set({
Using AI Code Generation
1var karma = require('karma').server;2karma.start({3}, function(exitCode) {4 console.log('Karma has exited with ' + exitCode);5});6module.exports = function(config) {7 config.set({8 preprocessors: {9 },10 coverageReporter: {11 },12 });13};
Using AI Code Generation
1var processLauncher = require('karma').process;2processLauncher.start({3}, function(exitCode) {4 console.log('Karma has exited with ' + exitCode);5 process.exit(exitCode);6});7module.exports = function(config) {8 config.set({9 preprocessors: {10 },11 })12}13PhantomJS 2.1.1 (Windows 8.0.0) ERROR14PhantomJS 2.1.1 (Windows 8.0.0) ERROR15var obj = {16};17describe('Object', function() {18 describe('#foo', function() {19 it('should return bar', function() {20 expect(obj.foo).to.equal('bar');21 });22 });23});24PhantomJS 2.1.1 (Windows 8.0.0) ERROR25 TypeError: 'undefined' is not a function (evaluating 'obj.foo()')
Using AI Code Generation
1var launcher = require('karma').launcher;2launcher.start({3}, function(exitCode) {4console.log('Karma has exited with ' + exitCode);5process.exit(exitCode);6});7module.exports = function(config) {8config.set({
Using AI Code Generation
1var Server = require('karma').Server;2var server = new Server({3});4server.start();5var launcher = require ( ' karma ' ). launcher ;6var launcher = require ( ' karma ' ). launcher ;7var Server = require ( ' karma ' ). Server ;8var server = new Server ({ 9 });
Using AI Code Generation
1var processLauncher = require('karma').process;2var Server = require('karma').Server;3var karma = new Server({4}, function(exitCode) {5 console.log('Karma has exited with ' + exitCode);6 process.exit(exitCode);7}).start();8processLauncher.launch({9}, function(exitCode) {10 console.log('Karma has exited with ' + exitCode);11 process.exit(exitCode);12});
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