data-provider-temporary/examples/node_modules/jest-cli/build/TestRunner.js

Library that helps with server-to-client synchronization of data

'use strict';var _slicedToArray = function () {function sliceIterator(arr, i) {var _arr = [];var _n = true;var _d = false;var _e = undefined;try {for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {_arr.push(_s.value);if (i && _arr.length === i) break;}} catch (err) {_d = true;_e = err;} finally {try {if (!_n && _i["return"]) _i["return"]();} finally {if (_d) throw _e;}}return _arr;}return function (arr, i) {if (Array.isArray(arr)) {return arr;} else if (Symbol.iterator in Object(arr)) {return sliceIterator(arr, i);} else {throw new TypeError("Invalid attempt to destructure non-iterable instance");}};}();function _asyncToGenerator(fn) {return function () {var gen = fn.apply(this, arguments);return new Promise(function (resolve, reject) {function step(key, arg) {try {var info = gen[key](arg);var value = info.value;} catch (error) {reject(error);return;}if (info.done) {resolve(value);} else {return Promise.resolve(value).then(function (value) {step("next", value);}, function (err) {step("throw", err);});}}return step("next");});};}var _require =



















require('jest-message-util');const formatExecError = _require.formatExecError; /**
                                                                                * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
                                                                                *
                                                                                * This source code is licensed under the BSD-style license found in the
                                                                                * LICENSE file in the root directory of this source tree. An additional grant
                                                                                * of patent rights can be found in the PATENTS file in the same directory.
                                                                                *
                                                                                * 
                                                                                */const snapshot = require('jest-snapshot');const pify = require('pify');const throat = require('throat');const workerFarm = require('worker-farm');const DefaultReporter = require('./reporters/DefaultReporter');const NotifyReporter = require('./reporters/NotifyReporter');const SummaryReporter = require('./reporters/SummaryReporter');
const VerboseReporter = require('./reporters/VerboseReporter');
const runTest = require('./runTest');
const TestWatcher = require('./TestWatcher');
const ReporterDispatcher = require('./ReporterDispatcher');

const SLOW_TEST_TIME = 3000;

class CancelRun extends Error {
  constructor(message) {
    super(message);
    this.name = 'CancelRun';
  }}













const TEST_WORKER_PATH = require.resolve('./TestWorker');

class TestRunner {




  constructor(globalConfig, options) {
    this._globalConfig = globalConfig;
    this._dispatcher = new ReporterDispatcher();
    this._options = options;
    this._setupReporters();
  }

  addReporter(reporter) {
    this._dispatcher.register(reporter);
  }

  removeReporter(ReporterClass) {
    this._dispatcher.unregister(ReporterClass);
  }

  runTests(tests, watcher) {var _this = this;return _asyncToGenerator(function* () {
      const timings = [];
      const contexts = new Set();
      tests.forEach(function (test) {
        contexts.add(test.context);
        if (test.duration) {
          timings.push(test.duration);
        }
      });

      const aggregatedResults = createAggregatedResults(tests.length);
      const estimatedTime = Math.ceil(
      getEstimatedTime(timings, _this._options.maxWorkers) / 1000);


      // Run in band if we only have one test or one worker available.
      // If we are confident from previous runs that the tests will finish quickly
      // we also run in band to reduce the overhead of spawning workers.
      const runInBand =
      _this._options.maxWorkers <= 1 ||
      tests.length <= 1 ||
      tests.length <= 20 &&
      timings.length > 0 &&
      timings.every(function (timing) {return timing < SLOW_TEST_TIME;});

      const onResult = function (test, testResult) {
        if (watcher.isInterrupted()) {
          return Promise.resolve();
        }
        if (testResult.testResults.length === 0) {
          const message = 'Your test suite must contain at least one test.';
          onFailure(test, {
            message,
            stack: new Error(message).stack });

          return Promise.resolve();
        }
        addResult(aggregatedResults, testResult);
        _this._dispatcher.onTestResult(test, testResult, aggregatedResults);
        return _this._bailIfNeeded(contexts, aggregatedResults, watcher);
      };

      const onFailure = function (test, error) {
        if (watcher.isInterrupted()) {
          return;
        }
        const testResult = buildFailureTestResult(test.path, error);
        testResult.failureMessage = formatExecError(
        testResult,
        test.context.config,
        _this._globalConfig,
        test.path);

        addResult(aggregatedResults, testResult);
        _this._dispatcher.onTestResult(test, testResult, aggregatedResults);
      };

      const updateSnapshotState = function () {
        contexts.forEach(function (context) {
          const status = snapshot.cleanup(
          context.hasteFS,
          _this._globalConfig.updateSnapshot);

          aggregatedResults.snapshot.filesRemoved += status.filesRemoved;
        });
        const updateAll = _this._globalConfig.updateSnapshot === 'all';
        aggregatedResults.snapshot.didUpdate = updateAll;
        aggregatedResults.snapshot.failure = !!(!updateAll && (
        aggregatedResults.snapshot.unchecked ||
        aggregatedResults.snapshot.unmatched ||
        aggregatedResults.snapshot.filesRemoved));
      };

      _this._dispatcher.onRunStart(aggregatedResults, {
        estimatedTime,
        showStatus: !runInBand });


      try {
        yield runInBand ?
        _this._createInBandTestRun(tests, watcher, onResult, onFailure) :
        _this._createParallelTestRun(tests, watcher, onResult, onFailure);
      } catch (error) {
        if (!watcher.isInterrupted()) {
          throw error;
        }
      }

      updateSnapshotState();
      aggregatedResults.wasInterrupted = watcher.isInterrupted();
      yield _this._dispatcher.onRunComplete(contexts, aggregatedResults);

      const anyTestFailures = !(aggregatedResults.numFailedTests === 0 &&
      aggregatedResults.numRuntimeErrorTestSuites === 0);
      const anyReporterErrors = _this._dispatcher.hasErrors();

      aggregatedResults.success = !(anyTestFailures ||
      aggregatedResults.snapshot.failure ||
      anyReporterErrors);

      return aggregatedResults;})();
  }

  _createInBandTestRun(
  tests,
  watcher,
  onResult,
  onFailure)
  {
    const mutex = throat(1);
    return tests.reduce(
    (promise, test) =>
    mutex(() =>
    promise.
    then(() => {
      if (watcher.isInterrupted()) {
        throw new CancelRun();
      }

      this._dispatcher.onTestStart(test);
      return runTest(
      test.path,
      this._globalConfig,
      test.context.config,
      test.context.resolver);

    }).
    then(result => onResult(test, result)).
    catch(err => onFailure(test, err))),

    Promise.resolve());

  }

  _createParallelTestRun(
  tests,
  watcher,
  onResult,
  onFailure)
  {
    const farm = workerFarm(
    {
      autoStart: true,
      maxConcurrentCallsPerWorker: 1,
      maxConcurrentWorkers: this._options.maxWorkers,
      maxRetries: 2 },

    TEST_WORKER_PATH);

    const mutex = throat(this._options.maxWorkers);
    const worker = pify(farm);

    // Send test suites to workers continuously instead of all at once to track
    // the start time of individual tests.
    const runTestInWorker = test =>
    mutex(() => {
      if (watcher.isInterrupted()) {
        return Promise.reject();
      }
      this._dispatcher.onTestStart(test);
      return worker({
        config: test.context.config,
        globalConfig: this._globalConfig,
        path: test.path,
        rawModuleMap: watcher.isWatchMode() ?
        test.context.moduleMap.getRawModuleMap() :
        null });

    });

    const onError = (err, test) => {
      onFailure(test, err);
      if (err.type === 'ProcessTerminatedError') {
        console.error(
        'A worker process has quit unexpectedly! ' +
        'Most likely this is an initialization error.');

        process.exit(1);
      }
    };

    const onInterrupt = new Promise((_, reject) => {
      watcher.on('change', state => {
        if (state.interrupted) {
          reject(new CancelRun());
        }
      });
    });

    const runAllTests = Promise.all(
    tests.map(test =>
    runTestInWorker(test).
    then(testResult => onResult(test, testResult)).
    catch(error => onError(error, test))));



    const cleanup = () => workerFarm.end(farm);
    return Promise.race([runAllTests, onInterrupt]).then(cleanup, cleanup);
  }

  _shouldAddDefaultReporters(reporters) {
    return (
      !reporters ||
      !!reporters.find(reporterConfig => reporterConfig[0] === 'default'));

  }

  _setupReporters() {var _globalConfig =
    this._globalConfig;const collectCoverage = _globalConfig.collectCoverage,notify = _globalConfig.notify,reporters = _globalConfig.reporters;

    const isDefault = this._shouldAddDefaultReporters(reporters);

    if (isDefault) {
      this._setupDefaultReporters();
    }

    if (reporters && Array.isArray(reporters)) {
      this._addCustomReporters(reporters);
    }

    if (collectCoverage) {
      // coverage reporter dependency graph is pretty big and we don't
      // want to require it if we're not in the `--coverage` mode
      const CoverageReporter = require('./reporters/CoverageReporter');
      this.addReporter(
      new CoverageReporter(this._globalConfig, {
        maxWorkers: this._options.maxWorkers }));


    }

    if (notify) {
      this.addReporter(new NotifyReporter(this._options.startRun));
    }
  }

  _setupDefaultReporters() {
    this.addReporter(
    this._globalConfig.verbose ?
    new VerboseReporter(this._globalConfig) :
    new DefaultReporter(this._globalConfig));


    this.addReporter(
    new SummaryReporter(this._globalConfig, {
      pattern: this._options.pattern,
      testNamePattern: this._options.testNamePattern,
      testPathPattern: this._options.testPathPattern }));


  }

  _addCustomReporters(reporters) {
    const customReporters = reporters.filter(
    reporterConfig => reporterConfig[0] !== 'default');


    customReporters.forEach((reporter, index) => {var _getReporterProps =
      this._getReporterProps(reporter);const options = _getReporterProps.options,path = _getReporterProps.path;

      try {
        const Reporter = require(path);
        this.addReporter(new Reporter(this._globalConfig, options));
      } catch (error) {
        throw new Error(
        'An error occurred while adding the reporter at path "' +
        path +
        '".' +
        error.message);

      }
    });
  }

  /**
     * Get properties of a reporter in an object
     * to make dealing with them less painful.
     */
  _getReporterProps(
  reporter)
  {
    if (typeof reporter === 'string') {
      return { path: reporter };
    } else if (Array.isArray(reporter)) {var _reporter = _slicedToArray(
      reporter, 2);const path = _reporter[0],options = _reporter[1];
      return { options, path };
    }

    throw new Error('Reproter should be either a string or an array');
  }

  _bailIfNeeded(
  contexts,
  aggregatedResults,
  watcher)
  {
    if (this._globalConfig.bail && aggregatedResults.numFailedTests !== 0) {
      if (watcher.isWatchMode()) {
        watcher.setState({ interrupted: true });
      } else {
        const exit = () => process.exit(1);
        return this._dispatcher.
        onRunComplete(contexts, aggregatedResults).
        then(exit).
        catch(exit);
      }
    }
    return Promise.resolve();
  }}


const createAggregatedResults = numTotalTestSuites => {
  return {
    numFailedTestSuites: 0,
    numFailedTests: 0,
    numPassedTestSuites: 0,
    numPassedTests: 0,
    numPendingTestSuites: 0,
    numPendingTests: 0,
    numRuntimeErrorTestSuites: 0,
    numTotalTestSuites,
    numTotalTests: 0,
    snapshot: {
      added: 0,
      didUpdate: false, // is set only after the full run
      failure: false,
      filesAdded: 0,
      // combines individual test results + results after full run
      filesRemoved: 0,
      filesUnmatched: 0,
      filesUpdated: 0,
      matched: 0,
      total: 0,
      unchecked: 0,
      unmatched: 0,
      updated: 0 },

    startTime: Date.now(),
    success: false,
    testResults: [],
    wasInterrupted: false };

};

const addResult = (
aggregatedResults,
testResult) =>
{
  aggregatedResults.testResults.push(testResult);
  aggregatedResults.numTotalTests +=
  testResult.numPassingTests +
  testResult.numFailingTests +
  testResult.numPendingTests;
  aggregatedResults.numFailedTests += testResult.numFailingTests;
  aggregatedResults.numPassedTests += testResult.numPassingTests;
  aggregatedResults.numPendingTests += testResult.numPendingTests;

  if (testResult.testExecError) {
    aggregatedResults.numRuntimeErrorTestSuites++;
  }

  if (testResult.skipped) {
    aggregatedResults.numPendingTestSuites++;
  } else if (testResult.numFailingTests > 0 || testResult.testExecError) {
    aggregatedResults.numFailedTestSuites++;
  } else {
    aggregatedResults.numPassedTestSuites++;
  }

  // Snapshot data
  if (testResult.snapshot.added) {
    aggregatedResults.snapshot.filesAdded++;
  }
  if (testResult.snapshot.fileDeleted) {
    aggregatedResults.snapshot.filesRemoved++;
  }
  if (testResult.snapshot.unmatched) {
    aggregatedResults.snapshot.filesUnmatched++;
  }
  if (testResult.snapshot.updated) {
    aggregatedResults.snapshot.filesUpdated++;
  }

  aggregatedResults.snapshot.added += testResult.snapshot.added;
  aggregatedResults.snapshot.matched += testResult.snapshot.matched;
  aggregatedResults.snapshot.unchecked += testResult.snapshot.unchecked;
  aggregatedResults.snapshot.unmatched += testResult.snapshot.unmatched;
  aggregatedResults.snapshot.updated += testResult.snapshot.updated;
  aggregatedResults.snapshot.total +=
  testResult.snapshot.added +
  testResult.snapshot.matched +
  testResult.snapshot.unmatched +
  testResult.snapshot.updated;
};

const buildFailureTestResult = (
testPath,
err) =>
{
  return {
    console: null,
    failureMessage: null,
    numFailingTests: 0,
    numPassingTests: 0,
    numPendingTests: 0,
    perfStats: {
      end: 0,
      start: 0 },

    skipped: false,
    snapshot: {
      added: 0,
      fileDeleted: false,
      matched: 0,
      unchecked: 0,
      unmatched: 0,
      updated: 0 },

    sourceMaps: {},
    testExecError: err,
    testFilePath: testPath,
    testResults: [] };

};

const getEstimatedTime = (timings, workers) => {
  if (!timings.length) {
    return 0;
  }

  const max = Math.max.apply(null, timings);
  return timings.length <= workers ?
  max :
  Math.max(timings.reduce((sum, time) => sum + time) / workers, max);
};

module.exports = TestRunner;