.

node_modules/jest-util/build/createProcessObject.js

@@ -0,0 +1,121 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = _default;
+
+var _deepCyclicCopy = _interopRequireDefault(require('./deepCyclicCopy'));
+
+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 BLACKLIST = new Set(['env', 'mainModule', '_events']);
+const isWin32 = process.platform === 'win32';
+const proto = Object.getPrototypeOf(process.env); // The "process.env" object has a bunch of particularities: first, it does not
+// directly extend from Object; second, it converts any assigned value to a
+// string; and third, it is case-insensitive in Windows. We use a proxy here to
+// mimic it (see https://nodejs.org/api/process.html#process_process_env).
+
+function createProcessEnv() {
+  const real = Object.create(proto);
+  const lookup = {};
+
+  function deletePropertyWin32(_target, key) {
+    for (const name in real) {
+      if (real.hasOwnProperty(name)) {
+        if (typeof key === 'string') {
+          if (name.toLowerCase() === key.toLowerCase()) {
+            delete real[name];
+            delete lookup[name.toLowerCase()];
+          }
+        } else {
+          if (key === name) {
+            delete real[name];
+            delete lookup[name];
+          }
+        }
+      }
+    }
+
+    return true;
+  }
+
+  function deleteProperty(_target, key) {
+    delete real[key];
+    delete lookup[key];
+    return true;
+  }
+
+  function getProperty(_target, key) {
+    return real[key];
+  }
+
+  function getPropertyWin32(_target, key) {
+    if (typeof key === 'string') {
+      return lookup[key in proto ? key : key.toLowerCase()];
+    } else {
+      return real[key];
+    }
+  }
+
+  const proxy = new Proxy(real, {
+    deleteProperty: isWin32 ? deletePropertyWin32 : deleteProperty,
+    get: isWin32 ? getPropertyWin32 : getProperty,
+
+    set(_target, key, value) {
+      const strValue = '' + value;
+
+      if (typeof key === 'string') {
+        lookup[key.toLowerCase()] = strValue;
+      }
+
+      real[key] = strValue;
+      return true;
+    }
+  });
+  return Object.assign(proxy, process.env);
+}
+
+function _default() {
+  const process = require('process');
+
+  const newProcess = (0, _deepCyclicCopy.default)(process, {
+    blacklist: BLACKLIST,
+    keepPrototype: true
+  });
+
+  try {
+    // This fails on Node 12, but it's already set to 'process'
+    newProcess[Symbol.toStringTag] = 'process';
+  } catch (e) {
+    // Make sure it's actually set instead of potentially ignoring errors
+    if (newProcess[Symbol.toStringTag] !== 'process') {
+      e.message =
+        'Unable to set toStringTag on process. Please open up an issue at https://github.com/facebook/jest\n\n' +
+        e.message;
+      throw e;
+    }
+  } // Sequentially execute all constructors over the object.
+
+  let proto = process;
+
+  while ((proto = Object.getPrototypeOf(proto))) {
+    if (typeof proto.constructor === 'function') {
+      proto.constructor.call(newProcess);
+    }
+  }
+
+  newProcess.env = createProcessEnv();
+
+  newProcess.send = () => {};
+
+  return newProcess;
+}