Updating NPM dependencies

node_modules/jest-worker/build/workers/ChildProcessWorker.d.ts

@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  */
 /// <reference types="node" />
-import { WorkerInterface, ChildMessage, OnEnd, OnStart, WorkerOptions, ParentMessage } from '../types';
+import { ChildMessage, OnCustomMessage, OnEnd, OnStart, WorkerInterface, WorkerOptions } from '../types';
 /**
  * This class wraps the child process and provides a nice interface to
  * communicate with. It takes care of:
@@ -27,21 +27,25 @@ import { WorkerInterface, ChildMessage, OnEnd, OnStart, WorkerOptions, ParentMes
 export default class ChildProcessWorker implements WorkerInterface {
     private _child;
     private _options;
-    private _onProcessEnd;
-    private _fakeStream;
     private _request;
     private _retries;
-    private _stderr;
+    private _onProcessEnd;
+    private _onCustomMessage;
+    private _fakeStream;
     private _stdout;
+    private _stderr;
+    private _exitPromise;
+    private _resolveExitPromise;
     constructor(options: WorkerOptions);
     initialize(): void;
     private _shutdown;
-    onMessage(response: ParentMessage): void;
-    onExit(exitCode: number): void;
-    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd): void;
+    private _onMessage;
+    private _onExit;
+    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd, onCustomMessage: OnCustomMessage): void;
+    waitForExit(): Promise<void>;
+    forceExit(): void;
     getWorkerId(): number;
     getStdout(): NodeJS.ReadableStream | null;
     getStderr(): NodeJS.ReadableStream | null;
     private _getFakeStream;
 }
-//# sourceMappingURL=ChildProcessWorker.d.ts.map

node_modules/jest-worker/build/workers/ChildProcessWorker.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"ChildProcessWorker.d.ts","sourceRoot":"","sources":["../../src/workers/ChildProcessWorker.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AAOH,OAAO,EAKL,eAAe,EACf,YAAY,EACZ,KAAK,EACL,OAAO,EACP,aAAa,EACb,aAAa,EACd,MAAM,UAAU,CAAC;AAElB;;;;;;;;;;;;;;;;;GAiBG;AACH,MAAM,CAAC,OAAO,OAAO,kBAAmB,YAAW,eAAe;IAChE,OAAO,CAAC,MAAM,CAAgB;IAC9B,OAAO,CAAC,QAAQ,CAAgB;IAChC,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,WAAW,CAAqB;IACxC,OAAO,CAAC,QAAQ,CAAsB;IACtC,OAAO,CAAC,QAAQ,CAAU;IAC1B,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,OAAO,CAAwC;gBAE3C,OAAO,EAAE,aAAa;IAUlC,UAAU;IAiEV,OAAO,CAAC,SAAS;IAQjB,SAAS,CAAC,QAAQ,EAAE,aAAa;IA6CjC,MAAM,CAAC,QAAQ,EAAE,MAAM;IAYvB,IAAI,CAAC,OAAO,EAAE,YAAY,EAAE,cAAc,EAAE,OAAO,EAAE,YAAY,EAAE,KAAK;IAcxE,WAAW;IAIX,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,OAAO,CAAC,cAAc;CAMvB"}

node_modules/jest-worker/build/workers/ChildProcessWorker.js

@@ -6,9 +6,9 @@ Object.defineProperty(exports, '__esModule', {
 exports.default = void 0;
 
 function _child_process() {
-  const data = _interopRequireDefault(require('child_process'));
+  const data = require('child_process');
 
-  _child_process = function _child_process() {
+  _child_process = function () {
     return data;
   };
 
@@ -18,7 +18,7 @@ function _child_process() {
 function _stream() {
   const data = require('stream');
 
-  _stream = function _stream() {
+  _stream = function () {
     return data;
   };
 
@@ -28,7 +28,7 @@ function _stream() {
 function _mergeStream() {
   const data = _interopRequireDefault(require('merge-stream'));
 
-  _mergeStream = function _mergeStream() {
+  _mergeStream = function () {
     return data;
   };
 
@@ -36,39 +36,29 @@ function _mergeStream() {
 }
 
 function _supportsColor() {
-  const data = _interopRequireDefault(require('supports-color'));
+  const data = require('supports-color');
 
-  _supportsColor = function _supportsColor() {
+  _supportsColor = function () {
     return data;
   };
 
   return data;
 }
 
-var _types = require('../types');
+function _types() {
+  const data = require('../types');
+
+  _types = function () {
+    return data;
+  };
+
+  return data;
+}
 
 function _interopRequireDefault(obj) {
   return obj && obj.__esModule ? obj : {default: obj};
 }
 
-function _objectSpread(target) {
-  for (var i = 1; i < arguments.length; i++) {
-    var source = arguments[i] != null ? arguments[i] : {};
-    var ownKeys = Object.keys(source);
-    if (typeof Object.getOwnPropertySymbols === 'function') {
-      ownKeys = ownKeys.concat(
-        Object.getOwnPropertySymbols(source).filter(function(sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        })
-      );
-    }
-    ownKeys.forEach(function(key) {
-      _defineProperty(target, key, source[key]);
-    });
-  }
-  return target;
-}
-
 function _defineProperty(obj, key, value) {
   if (key in obj) {
     Object.defineProperty(obj, key, {
@@ -83,6 +73,11 @@ function _defineProperty(obj, key, value) {
   return obj;
 }
 
+const SIGNAL_BASE_EXIT_CODE = 128;
+const SIGKILL_EXIT_CODE = SIGNAL_BASE_EXIT_CODE + 9;
+const SIGTERM_EXIT_CODE = SIGNAL_BASE_EXIT_CODE + 15; // How long to wait after SIGTERM before sending SIGKILL
+
+const SIGKILL_DELAY = 500;
 /**
  * This class wraps the child process and provides a nice interface to
  * communicate with. It takes care of:
@@ -101,59 +96,64 @@ function _defineProperty(obj, key, value) {
  * field is changed to "true", so that other workers which might encounter the
  * same call skip it.
  */
+
 class ChildProcessWorker {
   constructor(options) {
     _defineProperty(this, '_child', void 0);
 
     _defineProperty(this, '_options', void 0);
 
-    _defineProperty(this, '_onProcessEnd', void 0);
-
-    _defineProperty(this, '_fakeStream', void 0);
-
     _defineProperty(this, '_request', void 0);
 
     _defineProperty(this, '_retries', void 0);
 
-    _defineProperty(this, '_stderr', void 0);
+    _defineProperty(this, '_onProcessEnd', void 0);
+
+    _defineProperty(this, '_onCustomMessage', void 0);
+
+    _defineProperty(this, '_fakeStream', void 0);
 
     _defineProperty(this, '_stdout', void 0);
 
+    _defineProperty(this, '_stderr', void 0);
+
+    _defineProperty(this, '_exitPromise', void 0);
+
+    _defineProperty(this, '_resolveExitPromise', void 0);
+
     this._options = options;
-    this._fakeStream = null;
     this._request = null;
-    this._stderr = null;
+    this._fakeStream = null;
     this._stdout = null;
+    this._stderr = null;
+    this._exitPromise = new Promise(resolve => {
+      this._resolveExitPromise = resolve;
+    });
     this.initialize();
   }
 
   initialize() {
-    const forceColor = _supportsColor().default.stdout
+    const forceColor = _supportsColor().stdout
       ? {
           FORCE_COLOR: '1'
         }
       : {};
-
-    const child = _child_process().default.fork(
+    const child = (0, _child_process().fork)(
       require.resolve('./processChild'),
       [],
-      _objectSpread(
-        {
-          cwd: process.cwd(),
-          env: _objectSpread(
-            {},
-            process.env,
-            {
-              JEST_WORKER_ID: String(this._options.workerId + 1)
-            },
-            forceColor
-          ),
-          // Suppress --debug / --inspect flags while preserving others (like --harmony).
-          execArgv: process.execArgv.filter(v => !/^--(debug|inspect)/.test(v)),
-          silent: true
+      {
+        cwd: process.cwd(),
+        env: {
+          ...process.env,
+          JEST_WORKER_ID: String(this._options.workerId + 1),
+          // 0-indexed workerId, 1-indexed JEST_WORKER_ID
+          ...forceColor
         },
-        this._options.forkOptions
-      )
+        // Suppress --debug / --inspect flags while preserving others (like --harmony).
+        execArgv: process.execArgv.filter(v => !/^--(debug|inspect)/.test(v)),
+        silent: true,
+        ...this._options.forkOptions
+      }
     );
 
     if (child.stdout) {
@@ -176,10 +176,10 @@ class ChildProcessWorker {
       this._stderr.add(child.stderr);
     }
 
-    child.on('message', this.onMessage.bind(this));
-    child.on('exit', this.onExit.bind(this));
+    child.on('message', this._onMessage.bind(this));
+    child.on('exit', this._onExit.bind(this));
     child.send([
-      _types.CHILD_MESSAGE_INITIALIZE,
+      _types().CHILD_MESSAGE_INITIALIZE,
       false,
       this._options.workerPath,
       this._options.setupArgs
@@ -191,8 +191,9 @@ class ChildProcessWorker {
 
     if (this._retries > this._options.maxRetries) {
       const error = new Error('Call retries were exceeded');
-      this.onMessage([
-        _types.PARENT_MESSAGE_CLIENT_ERROR,
+
+      this._onMessage([
+        _types().PARENT_MESSAGE_CLIENT_ERROR,
         error.name,
         error.message,
         error.stack,
@@ -210,22 +211,25 @@ class ChildProcessWorker {
 
       this._fakeStream = null;
     }
+
+    this._resolveExitPromise();
   }
 
-  onMessage(response) {
+  _onMessage(response) {
+    // TODO: Add appropriate type check
     let error;
 
     switch (response[0]) {
-      case _types.PARENT_MESSAGE_OK:
+      case _types().PARENT_MESSAGE_OK:
         this._onProcessEnd(null, response[1]);
 
         break;
 
-      case _types.PARENT_MESSAGE_CLIENT_ERROR:
+      case _types().PARENT_MESSAGE_CLIENT_ERROR:
         error = response[4];
 
         if (error != null && typeof error === 'object') {
-          const extra = error; // @ts-ignore: no index
+          const extra = error; // @ts-expect-error: no index
 
           const NativeCtor = global[response[1]];
           const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
@@ -234,7 +238,6 @@ class ChildProcessWorker {
           error.stack = response[3];
 
           for (const key in extra) {
-            // @ts-ignore: adding custom properties to errors.
             error[key] = extra[key];
           }
         }
@@ -243,9 +246,8 @@ class ChildProcessWorker {
 
         break;
 
-      case _types.PARENT_MESSAGE_SETUP_ERROR:
-        error = new Error('Error when calling setup: ' + response[2]); // @ts-ignore: adding custom properties to errors.
-
+      case _types().PARENT_MESSAGE_SETUP_ERROR:
+        error = new Error('Error when calling setup: ' + response[2]);
         error.type = response[1];
         error.stack = response[3];
 
@@ -253,13 +255,22 @@ class ChildProcessWorker {
 
         break;
 
+      case _types().PARENT_MESSAGE_CUSTOM:
+        this._onCustomMessage(response[1]);
+
+        break;
+
       default:
         throw new TypeError('Unexpected response from worker: ' + response[0]);
     }
   }
 
-  onExit(exitCode) {
-    if (exitCode !== 0) {
+  _onExit(exitCode) {
+    if (
+      exitCode !== 0 &&
+      exitCode !== SIGTERM_EXIT_CODE &&
+      exitCode !== SIGKILL_EXIT_CODE
+    ) {
       this.initialize();
 
       if (this._request) {
@@ -270,7 +281,7 @@ class ChildProcessWorker {
     }
   }
 
-  send(request, onProcessStart, onProcessEnd) {
+  send(request, onProcessStart, onProcessEnd, onCustomMessage) {
     onProcessStart(this);
 
     this._onProcessEnd = (...args) => {
@@ -280,12 +291,29 @@ class ChildProcessWorker {
       return onProcessEnd(...args);
     };
 
+    this._onCustomMessage = (...arg) => onCustomMessage(...arg);
+
     this._request = request;
     this._retries = 0;
 
     this._child.send(request);
   }
 
+  waitForExit() {
+    return this._exitPromise;
+  }
+
+  forceExit() {
+    this._child.kill('SIGTERM');
+
+    const sigkillTimeout = setTimeout(
+      () => this._child.kill('SIGKILL'),
+      SIGKILL_DELAY
+    );
+
+    this._exitPromise.then(() => clearTimeout(sigkillTimeout));
+  }
+
   getWorkerId() {
     return this._options.workerId;
   }
@@ -300,7 +328,7 @@ class ChildProcessWorker {
 
   _getFakeStream() {
     if (!this._fakeStream) {
-      this._fakeStream = new (_stream()).PassThrough();
+      this._fakeStream = new (_stream().PassThrough)();
     }
 
     return this._fakeStream;

node_modules/jest-worker/build/workers/NodeThreadsWorker.d.ts

@@ -5,25 +5,30 @@
  * LICENSE file in the root directory of this source tree.
  */
 /// <reference types="node" />
-import { ChildMessage, OnEnd, OnStart, WorkerOptions, WorkerInterface, ParentMessage } from '../types';
+import { ChildMessage, OnCustomMessage, OnEnd, OnStart, WorkerInterface, WorkerOptions } from '../types';
 export default class ExperimentalWorker implements WorkerInterface {
     private _worker;
     private _options;
-    private _onProcessEnd;
     private _request;
     private _retries;
-    private _stderr;
-    private _stdout;
+    private _onProcessEnd;
+    private _onCustomMessage;
     private _fakeStream;
+    private _stdout;
+    private _stderr;
+    private _exitPromise;
+    private _resolveExitPromise;
+    private _forceExited;
     constructor(options: WorkerOptions);
     initialize(): void;
     private _shutdown;
-    onMessage(response: ParentMessage): void;
-    onExit(exitCode: number): void;
-    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd): void;
+    private _onMessage;
+    private _onExit;
+    waitForExit(): Promise<void>;
+    forceExit(): void;
+    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd, onCustomMessage: OnCustomMessage): void;
     getWorkerId(): number;
     getStdout(): NodeJS.ReadableStream | null;
     getStderr(): NodeJS.ReadableStream | null;
     private _getFakeStream;
 }
-//# sourceMappingURL=NodeThreadsWorker.d.ts.map

node_modules/jest-worker/build/workers/NodeThreadsWorker.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"NodeThreadsWorker.d.ts","sourceRoot":"","sources":["../../src/workers/NodeThreadsWorker.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AASH,OAAO,EAKL,YAAY,EACZ,KAAK,EACL,OAAO,EACP,aAAa,EACb,eAAe,EACf,aAAa,EACd,MAAM,UAAU,CAAC;AAElB,MAAM,CAAC,OAAO,OAAO,kBAAmB,YAAW,eAAe;IAChE,OAAO,CAAC,OAAO,CAAU;IACzB,OAAO,CAAC,QAAQ,CAAgB;IAChC,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,QAAQ,CAAsB;IACtC,OAAO,CAAC,QAAQ,CAAU;IAC1B,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,WAAW,CAAqB;gBAE5B,OAAO,EAAE,aAAa;IAUlC,UAAU;IAkEV,OAAO,CAAC,SAAS;IAQjB,SAAS,CAAC,QAAQ,EAAE,aAAa;IA2CjC,MAAM,CAAC,QAAQ,EAAE,MAAM;IAYvB,IAAI,CAAC,OAAO,EAAE,YAAY,EAAE,cAAc,EAAE,OAAO,EAAE,YAAY,EAAE,KAAK;IAexE,WAAW;IAIX,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,OAAO,CAAC,cAAc;CAMvB"}

node_modules/jest-worker/build/workers/NodeThreadsWorker.js

@@ -5,10 +5,10 @@ Object.defineProperty(exports, '__esModule', {
 });
 exports.default = void 0;
 
-function _path() {
-  const data = _interopRequireDefault(require('path'));
+function path() {
+  const data = _interopRequireWildcard(require('path'));
 
-  _path = function _path() {
+  path = function () {
     return data;
   };
 
@@ -18,7 +18,7 @@ function _path() {
 function _stream() {
   const data = require('stream');
 
-  _stream = function _stream() {
+  _stream = function () {
     return data;
   };
 
@@ -28,7 +28,7 @@ function _stream() {
 function _worker_threads() {
   const data = require('worker_threads');
 
-  _worker_threads = function _worker_threads() {
+  _worker_threads = function () {
     return data;
   };
 
@@ -38,35 +38,67 @@ function _worker_threads() {
 function _mergeStream() {
   const data = _interopRequireDefault(require('merge-stream'));
 
-  _mergeStream = function _mergeStream() {
+  _mergeStream = function () {
     return data;
   };
 
   return data;
 }
 
-var _types = require('../types');
+function _types() {
+  const data = require('../types');
+
+  _types = function () {
+    return data;
+  };
+
+  return data;
+}
 
 function _interopRequireDefault(obj) {
   return obj && obj.__esModule ? obj : {default: obj};
 }
 
-function _objectSpread(target) {
-  for (var i = 1; i < arguments.length; i++) {
-    var source = arguments[i] != null ? arguments[i] : {};
-    var ownKeys = Object.keys(source);
-    if (typeof Object.getOwnPropertySymbols === 'function') {
-      ownKeys = ownKeys.concat(
-        Object.getOwnPropertySymbols(source).filter(function(sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        })
-      );
-    }
-    ownKeys.forEach(function(key) {
-      _defineProperty(target, key, source[key]);
-    });
+function _getRequireWildcardCache() {
+  if (typeof WeakMap !== 'function') return null;
+  var cache = new WeakMap();
+  _getRequireWildcardCache = function () {
+    return cache;
+  };
+  return cache;
+}
+
+function _interopRequireWildcard(obj) {
+  if (obj && obj.__esModule) {
+    return obj;
   }
-  return target;
+  if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    return {default: obj};
+  }
+  var cache = _getRequireWildcardCache();
+  if (cache && cache.has(obj)) {
+    return cache.get(obj);
+  }
+  var newObj = {};
+  var hasPropertyDescriptor =
+    Object.defineProperty && Object.getOwnPropertyDescriptor;
+  for (var key in obj) {
+    if (Object.prototype.hasOwnProperty.call(obj, key)) {
+      var desc = hasPropertyDescriptor
+        ? Object.getOwnPropertyDescriptor(obj, key)
+        : null;
+      if (desc && (desc.get || desc.set)) {
+        Object.defineProperty(newObj, key, desc);
+      } else {
+        newObj[key] = obj[key];
+      }
+    }
+  }
+  newObj.default = obj;
+  if (cache) {
+    cache.set(obj, newObj);
+  }
+  return newObj;
 }
 
 function _defineProperty(obj, key, value) {
@@ -89,47 +121,58 @@ class ExperimentalWorker {
 
     _defineProperty(this, '_options', void 0);
 
-    _defineProperty(this, '_onProcessEnd', void 0);
-
     _defineProperty(this, '_request', void 0);
 
     _defineProperty(this, '_retries', void 0);
 
-    _defineProperty(this, '_stderr', void 0);
+    _defineProperty(this, '_onProcessEnd', void 0);
 
-    _defineProperty(this, '_stdout', void 0);
+    _defineProperty(this, '_onCustomMessage', void 0);
 
     _defineProperty(this, '_fakeStream', void 0);
 
+    _defineProperty(this, '_stdout', void 0);
+
+    _defineProperty(this, '_stderr', void 0);
+
+    _defineProperty(this, '_exitPromise', void 0);
+
+    _defineProperty(this, '_resolveExitPromise', void 0);
+
+    _defineProperty(this, '_forceExited', void 0);
+
     this._options = options;
     this._request = null;
-    this._stderr = null;
-    this._stdout = null;
     this._fakeStream = null;
+    this._stdout = null;
+    this._stderr = null;
+    this._exitPromise = new Promise(resolve => {
+      this._resolveExitPromise = resolve;
+    });
+    this._forceExited = false;
     this.initialize();
   }
 
   initialize() {
-    this._worker = new (_worker_threads()).Worker(
-      _path().default.resolve(__dirname, './threadChild.js'),
+    this._worker = new (_worker_threads().Worker)(
+      path().resolve(__dirname, './threadChild.js'),
       {
         eval: false,
+        // @ts-expect-error: added in newer versions
+        resourceLimits: this._options.resourceLimits,
         stderr: true,
         stdout: true,
-        workerData: _objectSpread(
-          {
-            cwd: process.cwd(),
-            env: _objectSpread({}, process.env, {
-              JEST_WORKER_ID: String(this._options.workerId + 1) // 0-indexed workerId, 1-indexed JEST_WORKER_ID
-            }),
-            // Suppress --debug / --inspect flags while preserving others (like --harmony).
-            execArgv: process.execArgv.filter(
-              v => !/^--(debug|inspect)/.test(v)
-            ),
-            silent: true
+        workerData: {
+          cwd: process.cwd(),
+          env: {
+            ...process.env,
+            JEST_WORKER_ID: String(this._options.workerId + 1) // 0-indexed workerId, 1-indexed JEST_WORKER_ID
           },
-          this._options.forkOptions
-        )
+          // Suppress --debug / --inspect flags while preserving others (like --harmony).
+          execArgv: process.execArgv.filter(v => !/^--(debug|inspect)/.test(v)),
+          silent: true,
+          ...this._options.forkOptions
+        }
       }
     );
 
@@ -153,12 +196,12 @@ class ExperimentalWorker {
       this._stderr.add(this._worker.stderr);
     }
 
-    this._worker.on('message', this.onMessage.bind(this));
+    this._worker.on('message', this._onMessage.bind(this));
 
-    this._worker.on('exit', this.onExit.bind(this));
+    this._worker.on('exit', this._onExit.bind(this));
 
     this._worker.postMessage([
-      _types.CHILD_MESSAGE_INITIALIZE,
+      _types().CHILD_MESSAGE_INITIALIZE,
       false,
       this._options.workerPath,
       this._options.setupArgs
@@ -170,8 +213,9 @@ class ExperimentalWorker {
 
     if (this._retries > this._options.maxRetries) {
       const error = new Error('Call retries were exceeded');
-      this.onMessage([
-        _types.PARENT_MESSAGE_CLIENT_ERROR,
+
+      this._onMessage([
+        _types().PARENT_MESSAGE_CLIENT_ERROR,
         error.name,
         error.message,
         error.stack,
@@ -189,22 +233,24 @@ class ExperimentalWorker {
 
       this._fakeStream = null;
     }
+
+    this._resolveExitPromise();
   }
 
-  onMessage(response) {
+  _onMessage(response) {
     let error;
 
     switch (response[0]) {
-      case _types.PARENT_MESSAGE_OK:
+      case _types().PARENT_MESSAGE_OK:
         this._onProcessEnd(null, response[1]);
 
         break;
 
-      case _types.PARENT_MESSAGE_CLIENT_ERROR:
+      case _types().PARENT_MESSAGE_CLIENT_ERROR:
         error = response[4];
 
         if (error != null && typeof error === 'object') {
-          const extra = error; // @ts-ignore: no index
+          const extra = error; // @ts-expect-error: no index
 
           const NativeCtor = global[response[1]];
           const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
@@ -213,7 +259,7 @@ class ExperimentalWorker {
           error.stack = response[3];
 
           for (const key in extra) {
-            // @ts-ignore: no index
+            // @ts-expect-error: no index
             error[key] = extra[key];
           }
         }
@@ -222,8 +268,8 @@ class ExperimentalWorker {
 
         break;
 
-      case _types.PARENT_MESSAGE_SETUP_ERROR:
-        error = new Error('Error when calling setup: ' + response[2]); // @ts-ignore: adding custom properties to errors.
+      case _types().PARENT_MESSAGE_SETUP_ERROR:
+        error = new Error('Error when calling setup: ' + response[2]); // @ts-expect-error: adding custom properties to errors.
 
         error.type = response[1];
         error.stack = response[3];
@@ -232,13 +278,18 @@ class ExperimentalWorker {
 
         break;
 
+      case _types().PARENT_MESSAGE_CUSTOM:
+        this._onCustomMessage(response[1]);
+
+        break;
+
       default:
         throw new TypeError('Unexpected response from worker: ' + response[0]);
     }
   }
 
-  onExit(exitCode) {
-    if (exitCode !== 0) {
+  _onExit(exitCode) {
+    if (exitCode !== 0 && !this._forceExited) {
       this.initialize();
 
       if (this._request) {
@@ -249,7 +300,17 @@ class ExperimentalWorker {
     }
   }
 
-  send(request, onProcessStart, onProcessEnd) {
+  waitForExit() {
+    return this._exitPromise;
+  }
+
+  forceExit() {
+    this._forceExited = true;
+
+    this._worker.terminate();
+  }
+
+  send(request, onProcessStart, onProcessEnd, onCustomMessage) {
     onProcessStart(this);
 
     this._onProcessEnd = (...args) => {
@@ -259,6 +320,8 @@ class ExperimentalWorker {
       return onProcessEnd(...args);
     };
 
+    this._onCustomMessage = (...arg) => onCustomMessage(...arg);
+
     this._request = request;
     this._retries = 0;
 
@@ -279,7 +342,7 @@ class ExperimentalWorker {
 
   _getFakeStream() {
     if (!this._fakeStream) {
-      this._fakeStream = new (_stream()).PassThrough();
+      this._fakeStream = new (_stream().PassThrough)();
     }
 
     return this._fakeStream;

node_modules/jest-worker/build/workers/messageParent.d.ts

@@ -0,0 +1,9 @@
+/**
+ * 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.
+ */
+/// <reference types="node" />
+declare const messageParent: (message: unknown, parentProcess?: NodeJS.Process) => void;
+export default messageParent;

node_modules/jest-worker/build/workers/messageParent.js

@@ -0,0 +1,51 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+function _types() {
+  const data = require('../types');
+
+  _types = function () {
+    return data;
+  };
+
+  return data;
+}
+
+/**
+ * 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 isWorkerThread = () => {
+  try {
+    // `Require` here to support Node v10
+    const {isMainThread, parentPort} = require('worker_threads');
+
+    return !isMainThread && parentPort;
+  } catch {
+    return false;
+  }
+};
+
+const messageParent = (message, parentProcess = process) => {
+  try {
+    if (isWorkerThread()) {
+      // `Require` here to support Node v10
+      const {parentPort} = require('worker_threads');
+
+      parentPort.postMessage([_types().PARENT_MESSAGE_CUSTOM, message]);
+    } else if (typeof parentProcess.send === 'function') {
+      parentProcess.send([_types().PARENT_MESSAGE_CUSTOM, message]);
+    }
+  } catch {
+    throw new Error('"messageParent" can only be used inside a worker');
+  }
+};
+
+var _default = messageParent;
+exports.default = _default;

node_modules/jest-worker/build/workers/processChild.d.ts

@@ -5,4 +5,3 @@
  * LICENSE file in the root directory of this source tree.
  */
 export {};
-//# sourceMappingURL=processChild.d.ts.map

node_modules/jest-worker/build/workers/processChild.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"processChild.d.ts","sourceRoot":"","sources":["../../src/workers/processChild.ts"],"names":[],"mappings":"AAAA;;;;;GAKG"}

node_modules/jest-worker/build/workers/processChild.js

@@ -1,39 +1,21 @@
 'use strict';
 
-var _types = require('../types');
+function _types() {
+  const data = require('../types');
 
-function _objectSpread(target) {
-  for (var i = 1; i < arguments.length; i++) {
-    var source = arguments[i] != null ? arguments[i] : {};
-    var ownKeys = Object.keys(source);
-    if (typeof Object.getOwnPropertySymbols === 'function') {
-      ownKeys = ownKeys.concat(
-        Object.getOwnPropertySymbols(source).filter(function(sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        })
-      );
-    }
-    ownKeys.forEach(function(key) {
-      _defineProperty(target, key, source[key]);
-    });
-  }
-  return target;
-}
-
-function _defineProperty(obj, key, value) {
-  if (key in obj) {
-    Object.defineProperty(obj, key, {
-      value: value,
-      enumerable: true,
-      configurable: true,
-      writable: true
-    });
-  } else {
-    obj[key] = value;
-  }
-  return obj;
+  _types = function () {
+    return data;
+  };
+
+  return data;
 }
 
+/**
+ * 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.
+ */
 let file = null;
 let setupArgs = [];
 let initialized = false;
@@ -51,20 +33,20 @@ let initialized = false;
  * non-zero exit code.
  */
 
-process.on('message', request => {
+const messageListener = request => {
   switch (request[0]) {
-    case _types.CHILD_MESSAGE_INITIALIZE:
+    case _types().CHILD_MESSAGE_INITIALIZE:
       const init = request;
       file = init[2];
       setupArgs = request[3];
       break;
 
-    case _types.CHILD_MESSAGE_CALL:
+    case _types().CHILD_MESSAGE_CALL:
       const call = request;
       execMethod(call[2], call[3]);
       break;
 
-    case _types.CHILD_MESSAGE_END:
+    case _types().CHILD_MESSAGE_END:
       end();
       break;
 
@@ -73,22 +55,24 @@ process.on('message', request => {
         'Unexpected request from parent process: ' + request[0]
       );
   }
-});
+};
+
+process.on('message', messageListener);
 
 function reportSuccess(result) {
   if (!process || !process.send) {
     throw new Error('Child can only be used on a forked process');
   }
 
-  process.send([_types.PARENT_MESSAGE_OK, result]);
+  process.send([_types().PARENT_MESSAGE_OK, result]);
 }
 
 function reportClientError(error) {
-  return reportError(error, _types.PARENT_MESSAGE_CLIENT_ERROR);
+  return reportError(error, _types().PARENT_MESSAGE_CLIENT_ERROR);
 }
 
 function reportInitializeError(error) {
-  return reportError(error, _types.PARENT_MESSAGE_SETUP_ERROR);
+  return reportError(error, _types().PARENT_MESSAGE_SETUP_ERROR);
 }
 
 function reportError(error, type) {
@@ -105,7 +89,7 @@ function reportError(error, type) {
     error.constructor && error.constructor.name,
     error.message,
     error.stack,
-    typeof error === 'object' ? _objectSpread({}, error) : error
+    typeof error === 'object' ? {...error} : error
   ]);
 }
 
@@ -121,7 +105,8 @@ function end() {
 }
 
 function exitProcess() {
-  process.exit(0);
+  // Clean up open handles so the process ideally exits gracefully
+  process.removeListener('message', messageListener);
 }
 
 function execMethod(method, args) {
@@ -148,6 +133,11 @@ function execMethod(method, args) {
   execFunction(main.setup, main, setupArgs, execHelper, reportInitializeError);
 }
 
+const isPromise = obj =>
+  !!obj &&
+  (typeof obj === 'object' || typeof obj === 'function') &&
+  typeof obj.then === 'function';
+
 function execFunction(fn, ctx, args, onResult, onError) {
   let result;
 
@@ -158,7 +148,7 @@ function execFunction(fn, ctx, args, onResult, onError) {
     return;
   }
 
-  if (result && typeof result.then === 'function') {
+  if (isPromise(result)) {
     result.then(onResult, onError);
   } else {
     onResult(result);

node_modules/jest-worker/build/workers/threadChild.d.ts

@@ -5,4 +5,3 @@
  * LICENSE file in the root directory of this source tree.
  */
 export {};
-//# sourceMappingURL=threadChild.d.ts.map

node_modules/jest-worker/build/workers/threadChild.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"threadChild.d.ts","sourceRoot":"","sources":["../../src/workers/threadChild.ts"],"names":[],"mappings":"AAAA;;;;;GAKG"}

node_modules/jest-worker/build/workers/threadChild.js

@@ -3,47 +3,29 @@
 function _worker_threads() {
   const data = require('worker_threads');
 
-  _worker_threads = function _worker_threads() {
+  _worker_threads = function () {
     return data;
   };
 
   return data;
 }
 
-var _types = require('../types');
+function _types() {
+  const data = require('../types');
 
-function _objectSpread(target) {
-  for (var i = 1; i < arguments.length; i++) {
-    var source = arguments[i] != null ? arguments[i] : {};
-    var ownKeys = Object.keys(source);
-    if (typeof Object.getOwnPropertySymbols === 'function') {
-      ownKeys = ownKeys.concat(
-        Object.getOwnPropertySymbols(source).filter(function(sym) {
-          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
-        })
-      );
-    }
-    ownKeys.forEach(function(key) {
-      _defineProperty(target, key, source[key]);
-    });
-  }
-  return target;
-}
-
-function _defineProperty(obj, key, value) {
-  if (key in obj) {
-    Object.defineProperty(obj, key, {
-      value: value,
-      enumerable: true,
-      configurable: true,
-      writable: true
-    });
-  } else {
-    obj[key] = value;
-  }
-  return obj;
+  _types = function () {
+    return data;
+  };
+
+  return data;
 }
 
+/**
+ * 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.
+ */
 let file = null;
 let setupArgs = [];
 let initialized = false;
@@ -61,20 +43,20 @@ let initialized = false;
  * non-zero exit code.
  */
 
-_worker_threads().parentPort.on('message', request => {
+const messageListener = request => {
   switch (request[0]) {
-    case _types.CHILD_MESSAGE_INITIALIZE:
+    case _types().CHILD_MESSAGE_INITIALIZE:
       const init = request;
       file = init[2];
       setupArgs = request[3];
       break;
 
-    case _types.CHILD_MESSAGE_CALL:
+    case _types().CHILD_MESSAGE_CALL:
       const call = request;
       execMethod(call[2], call[3]);
       break;
 
-    case _types.CHILD_MESSAGE_END:
+    case _types().CHILD_MESSAGE_END:
       end();
       break;
 
@@ -83,22 +65,27 @@ _worker_threads().parentPort.on('message', request => {
         'Unexpected request from parent process: ' + request[0]
       );
   }
-});
+};
+
+_worker_threads().parentPort.on('message', messageListener);
 
 function reportSuccess(result) {
   if (_worker_threads().isMainThread) {
     throw new Error('Child can only be used on a forked process');
   }
 
-  _worker_threads().parentPort.postMessage([_types.PARENT_MESSAGE_OK, result]);
+  _worker_threads().parentPort.postMessage([
+    _types().PARENT_MESSAGE_OK,
+    result
+  ]);
 }
 
 function reportClientError(error) {
-  return reportError(error, _types.PARENT_MESSAGE_CLIENT_ERROR);
+  return reportError(error, _types().PARENT_MESSAGE_CLIENT_ERROR);
 }
 
 function reportInitializeError(error) {
-  return reportError(error, _types.PARENT_MESSAGE_SETUP_ERROR);
+  return reportError(error, _types().PARENT_MESSAGE_SETUP_ERROR);
 }
 
 function reportError(error, type) {
@@ -115,7 +102,7 @@ function reportError(error, type) {
     error.constructor && error.constructor.name,
     error.message,
     error.stack,
-    typeof error === 'object' ? _objectSpread({}, error) : error
+    typeof error === 'object' ? {...error} : error
   ]);
 }
 
@@ -131,7 +118,8 @@ function end() {
 }
 
 function exitProcess() {
-  process.exit(0);
+  // Clean up open handles so the worker ideally exits gracefully
+  _worker_threads().parentPort.removeListener('message', messageListener);
 }
 
 function execMethod(method, args) {
@@ -158,6 +146,11 @@ function execMethod(method, args) {
   execFunction(main.setup, main, setupArgs, execHelper, reportInitializeError);
 }
 
+const isPromise = obj =>
+  !!obj &&
+  (typeof obj === 'object' || typeof obj === 'function') &&
+  typeof obj.then === 'function';
+
 function execFunction(fn, ctx, args, onResult, onError) {
   let result;
 
@@ -168,7 +161,7 @@ function execFunction(fn, ctx, args, onResult, onError) {
     return;
   }
 
-  if (result && typeof result.then === 'function') {
+  if (isPromise(result)) {
     result.then(onResult, onError);
   } else {
     onResult(result);