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core_steps.js
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core_steps.js
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const cucumber = require('cucumber')
const fs = require('fs')
const path = require('path')
const ref = require('child_process')
const exec = ref.exec
const spawn = ref.spawn
const rimraf = require('rimraf')
const stopper = require('../../../lib/stopper')
cucumber.defineSupportCode((a) => {
const When = a.When
const Then = a.Then
const Given = a.Given
const defineParameterType = a.defineParameterType
const baseDir = fs.realpathSync(path.join(__dirname, '/../../..'))
const tmpDir = path.join(baseDir, 'tmp', 'sandbox')
const tmpConfigFile = 'karma.conf.js'
let cleansingNeeded = true
let additionalArgs = []
function cleanseIfNeeded () {
if (cleansingNeeded) {
try {
rimraf.sync(tmpDir)
} catch (e) {
}
cleansingNeeded = false
return cleansingNeeded
}
}
function execKarma (command, level, proxyPort, proxyPath, callback) {
level = level || 'warn'
const startProxy = (done) => {
if (proxyPort) {
this.proxy.start(proxyPort, proxyPath, done)
} else {
done()
}
}
startProxy((err) => {
if (err) {
return callback.fail(err)
}
this.writeConfigFile(tmpDir, tmpConfigFile, (err, hash) => {
if (err) {
return callback.fail(new Error(err))
}
const configFile = path.join(tmpDir, hash + '.' + tmpConfigFile)
const runtimePath = path.join(baseDir, 'bin', 'karma')
const executor = (done) => {
const cmd = runtimePath + ' ' + command + ' --log-level ' + level + ' ' + configFile + ' ' + additionalArgs
return exec(cmd, {
cwd: baseDir
}, done)
}
const runOut = command === 'runOut'
if (command === 'run' || command === 'runOut' || command === 'monitor') {
this.child = spawn('' + runtimePath, ['start', '--log-level', 'warn', configFile])
const done = () => {
cleansingNeeded = true
this.child && this.child.kill()
callback()
}
this.child.on('error', (error) => {
this.lastRun.error = error
done()
})
this.child.stderr.on('data', (chunk) => {
this.lastRun.stderr += chunk.toString()
})
this.child.stdout.on('data', (chunk) => {
this.lastRun.stdout += chunk.toString()
const cmd = runtimePath + ' run ' + configFile + ' ' + additionalArgs
setTimeout(() => {
exec(cmd, {
cwd: baseDir
}, (error, stdout) => {
if (error) {
this.lastRun.error = error
}
if (runOut) {
this.lastRun.stdout = stdout
}
done()
})
if (command === 'monitor') {
done()
}
}, 1000)
})
} else {
executor((error, stdout, stderr) => {
if (error) {
this.lastRun.error = error
}
this.lastRun.stdout = stdout
this.lastRun.stderr = stderr
cleansingNeeded = true
callback()
})
}
})
})
}
Given('a configuration with:', function (fileContent, callback) {
cleanseIfNeeded()
this.addConfigContent(fileContent)
return callback()
})
Given('command line arguments of: {string}', function (args, callback) {
additionalArgs = args
return callback()
})
When('I stop a server programmatically', function (callback) {
const _this = this
setTimeout(function () {
stopper.stop(_this.configFile, function (exitCode) {
_this.stopperExitCode = exitCode
})
callback()
}, 1000)
})
When('I start a server in background', function (callback) {
this.writeConfigFile(tmpDir, tmpConfigFile, (function (_this) {
return function (err, hash) {
if (err) {
return callback.fail(new Error(err))
}
const configFile = path.join(tmpDir, hash + '.' + tmpConfigFile)
const runtimePath = path.join(baseDir, 'bin', 'karma')
_this.child = spawn('' + runtimePath, ['start', '--log-level', 'debug', configFile])
_this.child.stdout.on('data', function () {
callback()
callback = function () {
}
})
_this.child.on('exit', function (exitCode) {
_this.childExitCode = exitCode
})
}
})(this))
})
defineParameterType({
name: 'command',
regexp: /run|runOut|start|init|stop|monitor/
})
defineParameterType({
name: 'loglevel',
regexp: /info|error|warn|debug/
})
When('I {command} Karma', function (command, callback) {
execKarma.apply(this, [command, undefined, undefined, undefined, callback])
})
When('I {command} Karma with log-level {loglevel}', function (command, level, callback) {
execKarma.apply(this, [command, level, undefined, undefined, callback])
})
When('I {command} Karma behind a proxy on port {int} that prepends {string} to the base path', function (command, proxyPort, proxyPath, callback) {
execKarma.apply(this, [command, undefined, proxyPort, proxyPath, callback])
})
When('I stop when the log contains {string}', function (message, callback) {
setInterval(() => {
if (this.lastRun.stdout.includes(message)) {
this.child && this.child.kill()
callback()
}
}, 100)
})
defineParameterType({
name: 'exact',
regexp: /no\sdebug|like/
})
Then('it passes with( {exact}):', {timeout: 10 * 1000}, function (mode, expectedOutput, callback) {
const noDebug = mode === 'no debug'
const like = mode === 'like'
let actualOutput = this.lastRun.stdout.toString()
let lines
if (noDebug) {
lines = actualOutput.split('\n').filter(function (line) {
return !line.match(/\[DEBUG\]/)
})
actualOutput = lines.join('\n')
}
if (like && actualOutput.indexOf(expectedOutput) >= 0) {
return callback()
}
if (actualOutput.indexOf(expectedOutput) === 0) {
return callback()
}
if (actualOutput) {
return callback(new Error('Expected output to match the following:\n ' + expectedOutput + '\nGot:\n ' + actualOutput))
}
callback(new Error('Failed all comparissons'))
})
Then('it fails with:', function (expectedOutput, callback) {
const actualOutput = this.lastRun.stdout.toString()
const actualError = this.lastRun.error
const actualStderr = this.lastRun.stderr.toString()
if (actualOutput.match(expectedOutput)) {
return callback()
}
if (actualError || actualStderr) {
return callback(new Error('Expected output to match the following:\n ' + expectedOutput + '\nGot:\n ' + actualOutput))
}
})
Then('it fails with like:', function (expectedOutput, callback) {
const actualOutput = this.lastRun.stdout.toString()
const actualError = this.lastRun.error
const actualStderr = this.lastRun.stderr.toString()
if (actualOutput.match(new RegExp(expectedOutput))) {
return callback()
}
if (actualError || actualStderr) {
callback(new Error('Expected output to match the following:\n ' + expectedOutput + '\nGot:\n ' + actualOutput))
}
})
defineParameterType({
name: 'component',
regexp: /server|stopper/
})
Then('The {component} is dead( with exit code {int})',
function (stopperOrServer, code, callback) {
const server = stopperOrServer === 'server'
const _this = this
setTimeout(function () {
const actualExitCode = server ? _this.childExitCode : _this.stopperExitCode
if (actualExitCode === undefined) return callback(new Error('Server has not exited.'))
if (code === undefined || parseInt(code, 10) === actualExitCode) return callback()
callback(new Error('Exit-code mismatch'))
}, 4000)
})
Then(/^the file at ([a-zA-Z0-9/\\_.]+) contains:$/,
function (filePath, expectedOutput, callback) {
const data = fs.readFileSync(filePath, {encoding: 'UTF-8'})
if (data.match(expectedOutput)) {
return callback()
}
callback(new Error('Expected output to match the following:\n ' + expectedOutput + '\nGot:\n ' + data))
})
})