115 lines
3.9 KiB
JavaScript
115 lines
3.9 KiB
JavaScript
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/**
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* Runner middleware is responsible for communication with `karma run`.
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*
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* It basically triggers a test run and streams stdout back.
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*/
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const _ = require('lodash')
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const path = require('path')
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const helper = require('../helper')
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const log = require('../logger').create()
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const constant = require('../constants')
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const json = require('body-parser').json()
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// TODO(vojta): disable when single-run mode
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function createRunnerMiddleware (emitter, fileList, capturedBrowsers, reporter, executor,
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/* config.protocol */ protocol, /* config.hostname */ hostname, /* config.port */
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port, /* config.urlRoot */ urlRoot, config) {
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helper.saveOriginalArgs(config)
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return function (request, response, next) {
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if (request.url !== '/__run__' && request.url !== urlRoot + 'run') {
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return next()
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}
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log.debug('Execution (fired by runner)')
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response.writeHead(200)
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if (!capturedBrowsers.length) {
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const url = `${protocol}//${hostname}:${port}${urlRoot}`
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return response.end(`No captured browser, open ${url}\n`)
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}
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json(request, response, function () {
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if (!capturedBrowsers.areAllReady([])) {
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response.write('Waiting for previous execution...\n')
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}
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const data = request.body
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updateClientArgs(data)
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handleRun(data)
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refreshFileList(data).then(() => {
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executor.schedule()
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}).catch((error) => {
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const errorMessage = `Error during refresh file list. ${error.stack || error}`
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executor.scheduleError(errorMessage)
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})
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})
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function updateClientArgs (data) {
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helper.restoreOriginalArgs(config)
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if (_.isEmpty(data.args)) {
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log.debug('Ignoring empty client.args from run command')
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} else if ((_.isArray(data.args) && _.isArray(config.client.args)) ||
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(_.isPlainObject(data.args) && _.isPlainObject(config.client.args))) {
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log.debug('Merging client.args with ', data.args)
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config.client.args = _.merge(config.client.args, data.args)
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} else {
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log.warn('Replacing client.args with ', data.args, ' as their types do not match.')
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config.client.args = data.args
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}
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}
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async function refreshFileList (data) {
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let fullRefresh = true
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if (helper.isArray(data.changedFiles)) {
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await Promise.all(data.changedFiles.map(async function (filepath) {
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await fileList.changeFile(path.resolve(config.basePath, filepath))
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fullRefresh = false
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}))
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}
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if (helper.isArray(data.addedFiles)) {
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await Promise.all(data.addedFiles.map(async function (filepath) {
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await fileList.addFile(path.resolve(config.basePath, filepath))
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fullRefresh = false
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}))
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}
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if (helper.isArray(data.removedFiles)) {
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await Promise.all(data.removedFiles.map(async function (filepath) {
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await fileList.removeFile(path.resolve(config.basePath, filepath))
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fullRefresh = false
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}))
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}
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if (fullRefresh && data.refresh !== false) {
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log.debug('Refreshing all the files / patterns')
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await fileList.refresh()
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}
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}
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function handleRun (data) {
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emitter.once('run_start', function () {
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const responseWrite = response.write.bind(response)
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responseWrite.colors = data.colors
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reporter.addAdapter(responseWrite)
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// clean up, close runner response
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emitter.once('run_complete', function (_browsers, results) {
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reporter.removeAdapter(responseWrite)
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const emptyTestSuite = (results.failed + results.success) === 0 ? 0 : 1
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response.end(constant.EXIT_CODE + emptyTestSuite + results.exitCode)
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})
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})
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}
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}
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}
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createRunnerMiddleware.$inject = ['emitter', 'fileList', 'capturedBrowsers', 'reporter', 'executor',
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'config.protocol', 'config.hostname', 'config.port', 'config.urlRoot', 'config']
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// PUBLIC API
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exports.create = createRunnerMiddleware
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