.

node_modules/@jest/core/build/watch.js

@@ -0,0 +1,723 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = watch;
+
+function _ansiEscapes() {
+  const data = _interopRequireDefault(require('ansi-escapes'));
+
+  _ansiEscapes = function _ansiEscapes() {
+    return data;
+  };
+
+  return data;
+}
+
+function _chalk() {
+  const data = _interopRequireDefault(require('chalk'));
+
+  _chalk = function _chalk() {
+    return data;
+  };
+
+  return data;
+}
+
+function _exit() {
+  const data = _interopRequireDefault(require('exit'));
+
+  _exit = function _exit() {
+    return data;
+  };
+
+  return data;
+}
+
+function _jestMessageUtil() {
+  const data = require('jest-message-util');
+
+  _jestMessageUtil = function _jestMessageUtil() {
+    return data;
+  };
+
+  return data;
+}
+
+function _jestUtil() {
+  const data = require('jest-util');
+
+  _jestUtil = function _jestUtil() {
+    return data;
+  };
+
+  return data;
+}
+
+function _jestValidate() {
+  const data = require('jest-validate');
+
+  _jestValidate = function _jestValidate() {
+    return data;
+  };
+
+  return data;
+}
+
+function _jestWatcher() {
+  const data = require('jest-watcher');
+
+  _jestWatcher = function _jestWatcher() {
+    return data;
+  };
+
+  return data;
+}
+
+var _getChangedFilesPromise = _interopRequireDefault(
+  require('./getChangedFilesPromise')
+);
+
+var _is_valid_path = _interopRequireDefault(require('./lib/is_valid_path'));
+
+var _create_context = _interopRequireDefault(require('./lib/create_context'));
+
+var _runJest = _interopRequireDefault(require('./runJest'));
+
+var _update_global_config = _interopRequireDefault(
+  require('./lib/update_global_config')
+);
+
+var _SearchSource = _interopRequireDefault(require('./SearchSource'));
+
+var _TestWatcher = _interopRequireDefault(require('./TestWatcher'));
+
+var _FailedTestsCache = _interopRequireDefault(require('./FailedTestsCache'));
+
+var _test_path_pattern = _interopRequireDefault(
+  require('./plugins/test_path_pattern')
+);
+
+var _test_name_pattern = _interopRequireDefault(
+  require('./plugins/test_name_pattern')
+);
+
+var _update_snapshots = _interopRequireDefault(
+  require('./plugins/update_snapshots')
+);
+
+var _update_snapshots_interactive = _interopRequireDefault(
+  require('./plugins/update_snapshots_interactive')
+);
+
+var _quit = _interopRequireDefault(require('./plugins/quit'));
+
+var _watch_plugins_helpers = require('./lib/watch_plugins_helpers');
+
+var _active_filters_message = _interopRequireDefault(
+  require('./lib/active_filters_message')
+);
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+const preRunMessagePrint = _jestUtil().preRunMessage.print;
+
+let hasExitListener = false;
+const INTERNAL_PLUGINS = [
+  _test_path_pattern.default,
+  _test_name_pattern.default,
+  _update_snapshots.default,
+  _update_snapshots_interactive.default,
+  _quit.default
+];
+const RESERVED_KEY_PLUGINS = new Map([
+  [
+    _update_snapshots.default,
+    {
+      forbiddenOverwriteMessage: 'updating snapshots',
+      key: 'u'
+    }
+  ],
+  [
+    _update_snapshots_interactive.default,
+    {
+      forbiddenOverwriteMessage: 'updating snapshots interactively',
+      key: 'i'
+    }
+  ],
+  [
+    _quit.default,
+    {
+      forbiddenOverwriteMessage: 'quitting watch mode'
+    }
+  ]
+]);
+
+function watch(
+  initialGlobalConfig,
+  contexts,
+  outputStream,
+  hasteMapInstances,
+  stdin = process.stdin,
+  hooks = new (_jestWatcher()).JestHook(),
+  filter
+) {
+  // `globalConfig` will be constantly updated and reassigned as a result of
+  // watch mode interactions.
+  let globalConfig = initialGlobalConfig;
+  let activePlugin;
+  globalConfig = (0, _update_global_config.default)(globalConfig, {
+    mode: globalConfig.watch ? 'watch' : 'watchAll',
+    passWithNoTests: true
+  });
+
+  const updateConfigAndRun = ({
+    bail,
+    changedSince,
+    collectCoverage,
+    collectCoverageFrom,
+    collectCoverageOnlyFrom,
+    coverageDirectory,
+    coverageReporters,
+    mode,
+    notify,
+    notifyMode,
+    onlyFailures,
+    reporters,
+    testNamePattern,
+    testPathPattern,
+    updateSnapshot,
+    verbose
+  } = {}) => {
+    const previousUpdateSnapshot = globalConfig.updateSnapshot;
+    globalConfig = (0, _update_global_config.default)(globalConfig, {
+      bail,
+      changedSince,
+      collectCoverage,
+      collectCoverageFrom,
+      collectCoverageOnlyFrom,
+      coverageDirectory,
+      coverageReporters,
+      mode,
+      notify,
+      notifyMode,
+      onlyFailures,
+      reporters,
+      testNamePattern,
+      testPathPattern,
+      updateSnapshot,
+      verbose
+    });
+    startRun(globalConfig);
+    globalConfig = (0, _update_global_config.default)(globalConfig, {
+      // updateSnapshot is not sticky after a run.
+      updateSnapshot:
+        previousUpdateSnapshot === 'all' ? 'none' : previousUpdateSnapshot
+    });
+  };
+
+  const watchPlugins = INTERNAL_PLUGINS.map(
+    InternalPlugin =>
+      new InternalPlugin({
+        stdin,
+        stdout: outputStream
+      })
+  );
+  watchPlugins.forEach(plugin => {
+    const hookSubscriber = hooks.getSubscriber();
+
+    if (plugin.apply) {
+      plugin.apply(hookSubscriber);
+    }
+  });
+
+  if (globalConfig.watchPlugins != null) {
+    const watchPluginKeys = new Map();
+    var _iteratorNormalCompletion = true;
+    var _didIteratorError = false;
+    var _iteratorError = undefined;
+
+    try {
+      for (
+        var _iterator = watchPlugins[Symbol.iterator](), _step;
+        !(_iteratorNormalCompletion = (_step = _iterator.next()).done);
+        _iteratorNormalCompletion = true
+      ) {
+        const plugin = _step.value;
+        const reservedInfo = RESERVED_KEY_PLUGINS.get(plugin.constructor) || {};
+        const key = reservedInfo.key || getPluginKey(plugin, globalConfig);
+
+        if (!key) {
+          continue;
+        }
+
+        const forbiddenOverwriteMessage =
+          reservedInfo.forbiddenOverwriteMessage;
+        watchPluginKeys.set(key, {
+          forbiddenOverwriteMessage,
+          overwritable: forbiddenOverwriteMessage == null,
+          plugin
+        });
+      }
+    } catch (err) {
+      _didIteratorError = true;
+      _iteratorError = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion && _iterator.return != null) {
+          _iterator.return();
+        }
+      } finally {
+        if (_didIteratorError) {
+          throw _iteratorError;
+        }
+      }
+    }
+
+    var _iteratorNormalCompletion2 = true;
+    var _didIteratorError2 = false;
+    var _iteratorError2 = undefined;
+
+    try {
+      for (
+        var _iterator2 = globalConfig.watchPlugins[Symbol.iterator](), _step2;
+        !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done);
+        _iteratorNormalCompletion2 = true
+      ) {
+        const pluginWithConfig = _step2.value;
+
+        const ThirdPartyPlugin = require(pluginWithConfig.path);
+
+        const plugin = new ThirdPartyPlugin({
+          config: pluginWithConfig.config,
+          stdin,
+          stdout: outputStream
+        });
+        checkForConflicts(watchPluginKeys, plugin, globalConfig);
+        const hookSubscriber = hooks.getSubscriber();
+
+        if (plugin.apply) {
+          plugin.apply(hookSubscriber);
+        }
+
+        watchPlugins.push(plugin);
+      }
+    } catch (err) {
+      _didIteratorError2 = true;
+      _iteratorError2 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+          _iterator2.return();
+        }
+      } finally {
+        if (_didIteratorError2) {
+          throw _iteratorError2;
+        }
+      }
+    }
+  }
+
+  const failedTestsCache = new _FailedTestsCache.default();
+  let searchSources = contexts.map(context => ({
+    context,
+    searchSource: new _SearchSource.default(context)
+  }));
+  let isRunning = false;
+  let testWatcher;
+  let shouldDisplayWatchUsage = true;
+  let isWatchUsageDisplayed = false;
+
+  const emitFileChange = () => {
+    if (hooks.isUsed('onFileChange')) {
+      const projects = searchSources.map(({context, searchSource}) => ({
+        config: context.config,
+        testPaths: searchSource.findMatchingTests('').tests.map(t => t.path)
+      }));
+      hooks.getEmitter().onFileChange({
+        projects
+      });
+    }
+  };
+
+  emitFileChange();
+  hasteMapInstances.forEach((hasteMapInstance, index) => {
+    hasteMapInstance.on('change', ({eventsQueue, hasteFS, moduleMap}) => {
+      const validPaths = eventsQueue.filter(({filePath}) =>
+        (0, _is_valid_path.default)(globalConfig, filePath)
+      );
+
+      if (validPaths.length) {
+        const context = (contexts[index] = (0, _create_context.default)(
+          contexts[index].config,
+          {
+            hasteFS,
+            moduleMap
+          }
+        ));
+        activePlugin = null;
+        searchSources = searchSources.slice();
+        searchSources[index] = {
+          context,
+          searchSource: new _SearchSource.default(context)
+        };
+        emitFileChange();
+        startRun(globalConfig);
+      }
+    });
+  });
+
+  if (!hasExitListener) {
+    hasExitListener = true;
+    process.on('exit', () => {
+      if (activePlugin) {
+        outputStream.write(_ansiEscapes().default.cursorDown());
+        outputStream.write(_ansiEscapes().default.eraseDown);
+      }
+    });
+  }
+
+  const startRun = globalConfig => {
+    if (isRunning) {
+      return Promise.resolve(null);
+    }
+
+    testWatcher = new _TestWatcher.default({
+      isWatchMode: true
+    });
+    _jestUtil().isInteractive &&
+      outputStream.write(_jestUtil().specialChars.CLEAR);
+    preRunMessagePrint(outputStream);
+    isRunning = true;
+    const configs = contexts.map(context => context.config);
+    const changedFilesPromise = (0, _getChangedFilesPromise.default)(
+      globalConfig,
+      configs
+    );
+    return (0, _runJest.default)({
+      changedFilesPromise,
+      contexts,
+      failedTestsCache,
+      filter,
+      globalConfig,
+      jestHooks: hooks.getEmitter(),
+      onComplete: results => {
+        isRunning = false;
+        hooks.getEmitter().onTestRunComplete(results); // Create a new testWatcher instance so that re-runs won't be blocked.
+        // The old instance that was passed to Jest will still be interrupted
+        // and prevent test runs from the previous run.
+
+        testWatcher = new _TestWatcher.default({
+          isWatchMode: true
+        }); // Do not show any Watch Usage related stuff when running in a
+        // non-interactive environment
+
+        if (_jestUtil().isInteractive) {
+          if (shouldDisplayWatchUsage) {
+            outputStream.write(usage(globalConfig, watchPlugins));
+            shouldDisplayWatchUsage = false; // hide Watch Usage after first run
+
+            isWatchUsageDisplayed = true;
+          } else {
+            outputStream.write(showToggleUsagePrompt());
+            shouldDisplayWatchUsage = false;
+            isWatchUsageDisplayed = false;
+          }
+        } else {
+          outputStream.write('\n');
+        }
+
+        failedTestsCache.setTestResults(results.testResults);
+      },
+      outputStream,
+      startRun,
+      testWatcher
+    }).catch((
+      error // Errors thrown inside `runJest`, e.g. by resolvers, are caught here for
+    ) =>
+      // continuous watch mode execution. We need to reprint them to the
+      // terminal and give just a little bit of extra space so they fit below
+      // `preRunMessagePrint` message nicely.
+      console.error(
+        '\n\n' +
+          (0, _jestMessageUtil().formatExecError)(error, contexts[0].config, {
+            noStackTrace: false
+          })
+      )
+    );
+  };
+
+  const onKeypress = key => {
+    if (
+      key === _jestWatcher().KEYS.CONTROL_C ||
+      key === _jestWatcher().KEYS.CONTROL_D
+    ) {
+      if (typeof stdin.setRawMode === 'function') {
+        stdin.setRawMode(false);
+      }
+
+      outputStream.write('\n');
+      (0, _exit().default)(0);
+      return;
+    }
+
+    if (activePlugin != null && activePlugin.onKey) {
+      // if a plugin is activate, Jest should let it handle keystrokes, so ignore
+      // them here
+      activePlugin.onKey(key);
+      return;
+    } // Abort test run
+
+    const pluginKeys = (0, _watch_plugins_helpers.getSortedUsageRows)(
+      watchPlugins,
+      globalConfig
+    ).map(usage => Number(usage.key).toString(16));
+
+    if (
+      isRunning &&
+      testWatcher &&
+      ['q', _jestWatcher().KEYS.ENTER, 'a', 'o', 'f']
+        .concat(pluginKeys)
+        .includes(key)
+    ) {
+      testWatcher.setState({
+        interrupted: true
+      });
+      return;
+    }
+
+    const matchingWatchPlugin = (0,
+    _watch_plugins_helpers.filterInteractivePlugins)(
+      watchPlugins,
+      globalConfig
+    ).find(plugin => getPluginKey(plugin, globalConfig) === key);
+
+    if (matchingWatchPlugin != null) {
+      if (isRunning) {
+        testWatcher.setState({
+          interrupted: true
+        });
+        return;
+      } // "activate" the plugin, which has jest ignore keystrokes so the plugin
+      // can handle them
+
+      activePlugin = matchingWatchPlugin;
+
+      if (activePlugin.run) {
+        activePlugin.run(globalConfig, updateConfigAndRun).then(
+          shouldRerun => {
+            activePlugin = null;
+
+            if (shouldRerun) {
+              updateConfigAndRun();
+            }
+          },
+          () => {
+            activePlugin = null;
+            onCancelPatternPrompt();
+          }
+        );
+      } else {
+        activePlugin = null;
+      }
+    }
+
+    switch (key) {
+      case _jestWatcher().KEYS.ENTER:
+        startRun(globalConfig);
+        break;
+
+      case 'a':
+        globalConfig = (0, _update_global_config.default)(globalConfig, {
+          mode: 'watchAll',
+          testNamePattern: '',
+          testPathPattern: ''
+        });
+        startRun(globalConfig);
+        break;
+
+      case 'c':
+        updateConfigAndRun({
+          mode: 'watch',
+          testNamePattern: '',
+          testPathPattern: ''
+        });
+        break;
+
+      case 'f':
+        globalConfig = (0, _update_global_config.default)(globalConfig, {
+          onlyFailures: !globalConfig.onlyFailures
+        });
+        startRun(globalConfig);
+        break;
+
+      case 'o':
+        globalConfig = (0, _update_global_config.default)(globalConfig, {
+          mode: 'watch',
+          testNamePattern: '',
+          testPathPattern: ''
+        });
+        startRun(globalConfig);
+        break;
+
+      case '?':
+        break;
+
+      case 'w':
+        if (!shouldDisplayWatchUsage && !isWatchUsageDisplayed) {
+          outputStream.write(_ansiEscapes().default.cursorUp());
+          outputStream.write(_ansiEscapes().default.eraseDown);
+          outputStream.write(usage(globalConfig, watchPlugins));
+          isWatchUsageDisplayed = true;
+          shouldDisplayWatchUsage = false;
+        }
+
+        break;
+    }
+  };
+
+  const onCancelPatternPrompt = () => {
+    outputStream.write(_ansiEscapes().default.cursorHide);
+    outputStream.write(_jestUtil().specialChars.CLEAR);
+    outputStream.write(usage(globalConfig, watchPlugins));
+    outputStream.write(_ansiEscapes().default.cursorShow);
+  };
+
+  if (typeof stdin.setRawMode === 'function') {
+    stdin.setRawMode(true);
+    stdin.resume();
+    stdin.setEncoding('utf8');
+    stdin.on('data', onKeypress);
+  }
+
+  startRun(globalConfig);
+  return Promise.resolve();
+}
+
+const checkForConflicts = (watchPluginKeys, plugin, globalConfig) => {
+  const key = getPluginKey(plugin, globalConfig);
+
+  if (!key) {
+    return;
+  }
+
+  const conflictor = watchPluginKeys.get(key);
+
+  if (!conflictor || conflictor.overwritable) {
+    watchPluginKeys.set(key, {
+      overwritable: false,
+      plugin
+    });
+    return;
+  }
+
+  let error;
+
+  if (conflictor.forbiddenOverwriteMessage) {
+    error = `
+  Watch plugin ${_chalk().default.bold.red(
+    getPluginIdentifier(plugin)
+  )} attempted to register key ${_chalk().default.bold.red(`<${key}>`)},
+  that is reserved internally for ${_chalk().default.bold.red(
+    conflictor.forbiddenOverwriteMessage
+  )}.
+  Please change the configuration key for this plugin.`.trim();
+  } else {
+    const plugins = [conflictor.plugin, plugin]
+      .map(p => _chalk().default.bold.red(getPluginIdentifier(p)))
+      .join(' and ');
+    error = `
+  Watch plugins ${plugins} both attempted to register key ${_chalk().default.bold.red(
+      `<${key}>`
+    )}.
+  Please change the key configuration for one of the conflicting plugins to avoid overlap.`.trim();
+  }
+
+  throw new (_jestValidate()).ValidationError(
+    'Watch plugin configuration error',
+    error
+  );
+};
+
+const getPluginIdentifier = (
+  plugin // This breaks as `displayName` is not defined as a static, but since
+  // WatchPlugin is an interface, and it is my understanding interface
+  // static fields are not definable anymore, no idea how to circumvent
+  // this :-(
+  // @ts-ignore: leave `displayName` be.
+) => plugin.constructor.displayName || plugin.constructor.name;
+
+const getPluginKey = (plugin, globalConfig) => {
+  if (typeof plugin.getUsageInfo === 'function') {
+    return (
+      plugin.getUsageInfo(globalConfig) || {
+        key: null
+      }
+    ).key;
+  }
+
+  return null;
+};
+
+const usage = (globalConfig, watchPlugins, delimiter = '\n') => {
+  const messages = [
+    (0, _active_filters_message.default)(globalConfig),
+    globalConfig.testPathPattern || globalConfig.testNamePattern
+      ? _chalk().default.dim(' \u203A Press ') +
+        'c' +
+        _chalk().default.dim(' to clear filters.')
+      : null,
+    '\n' + _chalk().default.bold('Watch Usage'),
+    globalConfig.watch
+      ? _chalk().default.dim(' \u203A Press ') +
+        'a' +
+        _chalk().default.dim(' to run all tests.')
+      : null,
+    globalConfig.onlyFailures
+      ? _chalk().default.dim(' \u203A Press ') +
+        'f' +
+        _chalk().default.dim(' to quit "only failed tests" mode.')
+      : _chalk().default.dim(' \u203A Press ') +
+        'f' +
+        _chalk().default.dim(' to run only failed tests.'),
+    (globalConfig.watchAll ||
+      globalConfig.testPathPattern ||
+      globalConfig.testNamePattern) &&
+    !globalConfig.noSCM
+      ? _chalk().default.dim(' \u203A Press ') +
+        'o' +
+        _chalk().default.dim(' to only run tests related to changed files.')
+      : null,
+    ...(0, _watch_plugins_helpers.getSortedUsageRows)(
+      watchPlugins,
+      globalConfig
+    ).map(
+      plugin =>
+        _chalk().default.dim(' \u203A Press') +
+        ' ' +
+        plugin.key +
+        ' ' +
+        _chalk().default.dim(`to ${plugin.prompt}.`)
+    ),
+    _chalk().default.dim(' \u203A Press ') +
+      'Enter' +
+      _chalk().default.dim(' to trigger a test run.')
+  ];
+  return messages.filter(message => !!message).join(delimiter) + '\n';
+};
+
+const showToggleUsagePrompt = () =>
+  '\n' +
+  _chalk().default.bold('Watch Usage: ') +
+  _chalk().default.dim('Press ') +
+  'w' +
+  _chalk().default.dim(' to show more.');