add linting (and some initial fixes)

4 files changed, 741 insertions, 0 deletions

diff --git a/node_modules/jest-mock/.npmignore b/node_modules/jest-mock/.npmignore
new file mode 100644
index 000000000..85e48fe7b
--- /dev/null
+++ b/node_modules/jest-mock/.npmignore
@@ -0,0 +1,3 @@
+**/__mocks__/**
+**/__tests__/**
+src
diff --git a/node_modules/jest-mock/README.md b/node_modules/jest-mock/README.md
new file mode 100644
index 000000000..2de10c3b4
--- /dev/null
+++ b/node_modules/jest-mock/README.md
@@ -0,0 +1,122 @@
+# jest-mock
+
+## API
+
+### `constructor(global)`
+
+Creates a new module mocker that generates mocks as if they were created in an
+environment with the given global object.
+
+### `generateFromMetadata(metadata)`
+
+Generates a mock based on the given metadata (Metadata for the mock in
+the schema returned by the getMetadata method of this module). Mocks treat
+functions specially, and all mock functions have additional members, described
+in the documentation for `fn` in this module.
+
+
+One important note: function prototypes are handled specially by this
+mocking framework. For functions with prototypes, when called as a
+constructor, the mock will install mocked function members on the instance.
+This allows different instances of the same constructor to have different
+values for its mocks member and its return values.
+
+### `getMetadata(component)`
+
+Inspects the argument and returns its schema in the following recursive format:
+
+```js
+{
+  type: ...
+  members : {}
+}
+```
+
+Where type is one of `array`, `object`, `function`, or `ref`, and members
+is an optional dictionary where the keys are member names and the values
+are metadata objects. Function prototypes are defined simply by defining
+metadata for the `member.prototype` of the function. The type of a function
+prototype should always be `object`. For instance, a simple class might be
+defined like this:
+
+```js
+{
+  type: 'function',
+  members: {
+    staticMethod: {type: 'function'},
+    prototype: {
+      type: 'object',
+      members: {
+        instanceMethod: {type: 'function'}
+      }
+    }
+  }
+}
+ ```
+
+Metadata may also contain references to other objects defined within the
+same metadata object. The metadata for the referent must be marked with
+`refID` key and an arbitrary value. The referrer must be marked with a
+`ref` key that has the same value as object with refID that it refers to.
+For instance, this metadata blob:
+
+```js
+{
+  type: 'object',
+  refID: 1,
+  members: {
+    self: {ref: 1}
+  }
+}
+```
+
+defines an object with a slot named `self` that refers back to the object.
+
+### `fn`
+
+Generates a stand-alone function with members that help drive unit tests or
+confirm expectations. Specifically, functions returned by this method have
+the following members:
+
+##### `.mock`
+
+An object with two members, `calls`, and `instances`, which are both
+lists. The items in the `calls` list are the arguments with which the
+function was called. The "instances" list stores the value of 'this' for
+each call to the function. This is useful for retrieving instances from a
+constructor.
+
+##### `.mockReturnValueOnce(value)`
+
+Pushes the given value onto a FIFO queue of return values for the
+function.
+
+##### `.mockReturnValue(value)`
+
+Sets the default return value for the function.
+
+##### `.mockImplementationOnce(function)`
+
+Pushes the given mock implementation onto a FIFO queue of mock
+implementations for the function.
+
+##### `.mockImplementation(function)`
+
+Sets the default mock implementation for the function.
+
+##### `.mockReturnThis()`
+
+Syntactic sugar for .mockImplementation(function() {return this;})
+
+
+
+In case both `mockImplementationOnce()/mockImplementation()` and
+`mockReturnValueOnce()/mockReturnValue()` are called. The priority of which to
+use is based on what is the last call:
+- if the last call is mockReturnValueOnce() or mockReturnValue(),
+  use the specific return value or default return value.
+  If specific return values are used up or no default return value is set,
+  fall back to try mockImplementation();
+- if the last call is mockImplementationOnce() or mockImplementation(),
+  run the specific implementation and return the result or run default
+  implementation and return the result.
diff --git a/node_modules/jest-mock/build/index.js b/node_modules/jest-mock/build/index.js
new file mode 100644
index 000000000..d99c0bb98
--- /dev/null
+++ b/node_modules/jest-mock/build/index.js
@@ -0,0 +1,606 @@
+/**
+ * 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.
+ *
+ * 
+ */
+
+'use strict';
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+const MOCK_CONSTRUCTOR_NAME = 'mockConstructor';
+
+// $FlowFixMe
+const RESERVED_KEYWORDS = Object.assign(Object.create(null), {
+  arguments: true,
+  await: true,
+  break: true,
+  case: true,
+  catch: true,
+  class: true,
+  const: true,
+  continue: true,
+  debugger: true,
+  default: true,
+  delete: true,
+  do: true,
+  else: true,
+  enum: true,
+  eval: true,
+  export: true,
+  extends: true,
+  false: true,
+  finally: true,
+  for: true,
+  function: true,
+  if: true,
+  implements: true,
+  import: true,
+  in: true,
+  instanceof: true,
+  interface: true,
+  let: true,
+  new: true,
+  null: true,
+  package: true,
+  private: true,
+  protected: true,
+  public: true,
+  return: true,
+  static: true,
+  super: true,
+  switch: true,
+  this: true,
+  throw: true,
+  true: true,
+  try: true,
+  typeof: true,
+  var: true,
+  void: true,
+  while: true,
+  with: true,
+  yield: true });
+
+
+function isA(typeName, value) {
+  return Object.prototype.toString.apply(value) === '[object ' + typeName + ']';
+}
+
+function getType(ref) {
+  if (isA('Function', ref)) {
+    return 'function';
+  } else if (Array.isArray(ref)) {
+    return 'array';
+  } else if (isA('Object', ref)) {
+    return 'object';
+  } else if (
+  isA('Number', ref) ||
+  isA('String', ref) ||
+  isA('Boolean', ref) ||
+  isA('Symbol', ref))
+  {
+    return 'constant';
+  } else if (isA('Map', ref) || isA('WeakMap', ref) || isA('Set', ref)) {
+    return 'collection';
+  } else if (isA('RegExp', ref)) {
+    return 'regexp';
+  } else if (ref === undefined) {
+    return 'undefined';
+  } else if (ref === null) {
+    return 'null';
+  } else {
+    return null;
+  }
+}
+
+function isReadonlyProp(object, prop) {
+  return (
+
+    (
+    prop === 'arguments' ||
+    prop === 'caller' ||
+    prop === 'callee' ||
+    prop === 'name' ||
+    prop === 'length') &&
+
+    isA('Function', object) ||
+
+
+    (
+    prop === 'source' ||
+    prop === 'global' ||
+    prop === 'ignoreCase' ||
+    prop === 'multiline') &&
+
+    isA('RegExp', object));
+
+
+}
+
+function getSlots(object) {
+  const slots = {};
+  if (!object) {
+    return [];
+  }
+
+  let parent = Object.getPrototypeOf(object);
+  do {
+    if (object === Object.getPrototypeOf(Function)) {
+      break;
+    }
+    const ownNames = Object.getOwnPropertyNames(object);
+    for (let i = 0; i < ownNames.length; i++) {
+      const prop = ownNames[i];
+      if (!isReadonlyProp(object, prop)) {
+        const propDesc = Object.getOwnPropertyDescriptor(object, prop);
+        if (!propDesc.get || object.__esModule) {
+          slots[prop] = true;
+        }
+      }
+    }
+    object = parent;
+  } while (object && (parent = Object.getPrototypeOf(object)) !== null);
+  return Object.keys(slots);
+}
+
+
+class ModuleMockerClass {
+
+
+
+
+
+  /**
+                          * @see README.md
+                          * @param global Global object of the test environment, used to create
+                          * mocks
+                          */
+  constructor(global) {
+    this._environmentGlobal = global;
+    this._mockState = new WeakMap();
+    this._mockConfigRegistry = new WeakMap();
+    this.ModuleMocker = ModuleMockerClass;
+  }
+
+  _ensureMockConfig(f) {
+    let config = this._mockConfigRegistry.get(f);
+    if (!config) {
+      config = this._defaultMockConfig();
+      this._mockConfigRegistry.set(f, config);
+    }
+    return config;
+  }
+
+  _ensureMockState(f) {
+    let state = this._mockState.get(f);
+    if (!state) {
+      state = this._defaultMockState();
+      this._mockState.set(f, state);
+    }
+    return state;
+  }
+
+  _defaultMockConfig() {
+    return {
+      defaultReturnValue: undefined,
+      isReturnValueLastSet: false,
+      mockImpl: undefined,
+      specificMockImpls: [],
+      specificReturnValues: [] };
+
+  }
+
+  _defaultMockState() {
+    return {
+      calls: [],
+      instances: [] };
+
+  }
+
+  _makeComponent(metadata, restore) {
+    if (metadata.type === 'object') {
+      return new this._environmentGlobal.Object();
+    } else if (metadata.type === 'array') {
+      return new this._environmentGlobal.Array();
+    } else if (metadata.type === 'regexp') {
+      return new this._environmentGlobal.RegExp('');
+    } else if (
+    metadata.type === 'constant' ||
+    metadata.type === 'collection' ||
+    metadata.type === 'null' ||
+    metadata.type === 'undefined')
+    {
+      return metadata.value;
+    } else if (metadata.type === 'function') {
+      /* eslint-disable prefer-const */
+      let f;
+      /* eslint-enable prefer-const */
+
+      const prototype =
+      metadata.members &&
+      metadata.members.prototype &&
+      metadata.members.prototype.members ||
+      {};
+      const prototypeSlots = getSlots(prototype);
+      const mocker = this;
+      const mockConstructor = function () {
+        const mockState = mocker._ensureMockState(f);
+        const mockConfig = mocker._ensureMockConfig(f);
+        mockState.instances.push(this);
+        mockState.calls.push(Array.prototype.slice.call(arguments));
+        if (this instanceof f) {
+          // This is probably being called as a constructor
+          prototypeSlots.forEach(slot => {
+            // Copy prototype methods to the instance to make
+            // it easier to interact with mock instance call and
+            // return values
+            if (prototype[slot].type === 'function') {
+              const protoImpl = this[slot];
+              this[slot] = mocker.generateFromMetadata(prototype[slot]);
+              this[slot]._protoImpl = protoImpl;
+            }
+          });
+
+          // Run the mock constructor implementation
+          return (
+            mockConfig.mockImpl &&
+            mockConfig.mockImpl.apply(this, arguments));
+
+        }
+
+        let returnValue;
+        // If return value is last set, either specific or default, i.e.
+        // mockReturnValueOnce()/mockReturnValue() is called and no
+        // mockImplementationOnce()/mockImplementation() is called after that.
+        // use the set return value.
+        if (mockConfig.isReturnValueLastSet) {
+          returnValue = mockConfig.specificReturnValues.shift();
+          if (returnValue === undefined) {
+            returnValue = mockConfig.defaultReturnValue;
+          }
+        }
+
+        // If mockImplementationOnce()/mockImplementation() is last set,
+        // or specific return values are used up, use the mock implementation.
+        let specificMockImpl;
+        if (returnValue === undefined) {
+          specificMockImpl = mockConfig.specificMockImpls.shift();
+          if (specificMockImpl === undefined) {
+            specificMockImpl = mockConfig.mockImpl;
+          }
+          if (specificMockImpl) {
+            return specificMockImpl.apply(this, arguments);
+          }
+        }
+
+        // Otherwise use prototype implementation
+        if (returnValue === undefined && f._protoImpl) {
+          return f._protoImpl.apply(this, arguments);
+        }
+
+        return returnValue;
+      };
+
+      f = this._createMockFunction(metadata, mockConstructor);
+      f._isMockFunction = true;
+      f.getMockImplementation = () => this._ensureMockConfig(f).mockImpl;
+
+      this._mockState.set(f, this._defaultMockState());
+      this._mockConfigRegistry.set(f, this._defaultMockConfig());
+
+      // $FlowFixMe - defineProperty getters not supported
+      Object.defineProperty(f, 'mock', {
+        configurable: false,
+        enumerable: true,
+        get: () => this._ensureMockState(f),
+        set: val => this._mockState.set(f, val) });
+
+
+      f.mockClear = () => {
+        this._mockState.delete(f);
+      };
+
+      f.mockReset = () => {
+        this._mockState.delete(f);
+        this._mockConfigRegistry.delete(f);
+      };
+
+      f.mockReturnValueOnce = value => {
+        // next function call will return this value or default return value
+        const mockConfig = this._ensureMockConfig(f);
+        mockConfig.isReturnValueLastSet = true;
+        mockConfig.specificReturnValues.push(value);
+        return f;
+      };
+
+      f.mockReturnValue = value => {
+        // next function call will return specified return value or this one
+        const mockConfig = this._ensureMockConfig(f);
+        mockConfig.isReturnValueLastSet = true;
+        mockConfig.defaultReturnValue = value;
+        return f;
+      };
+
+      f.mockImplementationOnce = fn => {
+        // next function call will use this mock implementation return value
+        // or default mock implementation return value
+        const mockConfig = this._ensureMockConfig(f);
+        mockConfig.isReturnValueLastSet = false;
+        mockConfig.specificMockImpls.push(fn);
+        return f;
+      };
+
+      f.mockImplementation = fn => {
+        // next function call will use mock implementation return value
+        const mockConfig = this._ensureMockConfig(f);
+        mockConfig.isReturnValueLastSet = false;
+        mockConfig.mockImpl = fn;
+        return f;
+      };
+
+      f.mockReturnThis = () =>
+      f.mockImplementation(function () {
+        return this;
+      });
+
+      if (metadata.mockImpl) {
+        f.mockImplementation(metadata.mockImpl);
+      }
+
+      f.mockRestore = restore ? restore : () => {};
+
+      return f;
+    } else {
+      const unknownType = metadata.type || 'undefined type';
+      throw new Error('Unrecognized type ' + unknownType);
+    }
+  }
+
+  _createMockFunction(
+  metadata,
+  mockConstructor)
+  {
+    let name = metadata.name;
+    // Special case functions named `mockConstructor` to guard for infinite
+    // loops.
+    if (!name || name === MOCK_CONSTRUCTOR_NAME) {
+      return mockConstructor;
+    }
+
+    // Preserve `name` property of mocked function.
+    const boundFunctionPrefix = 'bound ';
+    let bindCall = '';
+    // if-do-while for perf reasons. The common case is for the if to fail.
+    if (name && name.startsWith(boundFunctionPrefix)) {
+      do {
+        name = name.substring(boundFunctionPrefix.length);
+        // Call bind() just to alter the function name.
+        bindCall = '.bind(null)';
+      } while (name && name.startsWith(boundFunctionPrefix));
+    }
+
+    // It's a syntax error to define functions with a reserved keyword
+    // as name.
+    if (RESERVED_KEYWORDS[name]) {
+      name = '$' + name;
+    }
+
+    // It's also a syntax error to define a function with a reserved character
+    // as part of it's name.
+    if (/[\s-]/.test(name)) {
+      name = name.replace(/[\s-]/g, '$');
+    }
+
+    const body =
+    'return function ' + name + '() {' +
+    'return ' + MOCK_CONSTRUCTOR_NAME + '.apply(this,arguments);' +
+    '}' + bindCall;
+    const createConstructor = new this._environmentGlobal.Function(
+    MOCK_CONSTRUCTOR_NAME,
+    body);
+
+    return createConstructor(mockConstructor);
+  }
+
+  _generateMock(
+  metadata,
+  callbacks,
+  refs)
+  {
+    const mock = this._makeComponent(metadata);
+    if (metadata.refID != null) {
+      refs[metadata.refID] = mock;
+    }
+
+    getSlots(metadata.members).forEach(slot => {
+      const slotMetadata = metadata.members && metadata.members[slot] || {};
+      if (slotMetadata.ref != null) {
+        callbacks.push(() => mock[slot] = refs[slotMetadata.ref]);
+      } else {
+        mock[slot] = this._generateMock(slotMetadata, callbacks, refs);
+      }
+    });
+
+    if (
+    metadata.type !== 'undefined' &&
+    metadata.type !== 'null' &&
+    mock.prototype)
+    {
+      mock.prototype.constructor = mock;
+    }
+
+    return mock;
+  }
+
+  /**
+     * @see README.md
+     * @param metadata Metadata for the mock in the schema returned by the
+     * getMetadata method of this module.
+     */
+  generateFromMetadata(_metadata) {
+    const callbacks = [];
+    const refs = {};
+    const mock = this._generateMock(_metadata, callbacks, refs);
+    callbacks.forEach(setter => setter());
+    return mock;
+  }
+
+  /**
+     * @see README.md
+     * @param component The component for which to retrieve metadata.
+     */
+  getMetadata(
+  component,
+  _refs)
+  {
+    const refs = _refs || new Map();
+    const ref = refs.get(component);
+    if (ref != null) {
+      return { ref };
+    }
+
+    const type = getType(component);
+    if (!type) {
+      return null;
+    }
+
+    const metadata = { type };
+    if (
+    type === 'constant' ||
+    type === 'collection' ||
+    type === 'undefined' ||
+    type === 'null')
+    {
+      metadata.value = component;
+      return metadata;
+    } else if (type === 'function') {
+      metadata.name = component.name;
+      if (component._isMockFunction) {
+        metadata.mockImpl = component.getMockImplementation();
+      }
+    }
+
+    metadata.refID = refs.size;
+    refs.set(component, metadata.refID);
+
+    let members = null;
+    // Leave arrays alone
+    if (type !== 'array') {
+      if (type !== 'undefined') {
+        getSlots(component).forEach(slot => {
+          if (
+          type === 'function' &&
+          component._isMockFunction &&
+          slot.match(/^mock/))
+          {
+            return;
+          }
+
+          if (
+          !component.hasOwnProperty && component[slot] !== undefined ||
+          component.hasOwnProperty && component.hasOwnProperty(slot) ||
+          type === 'object' && component[slot] != Object.prototype[slot])
+          {
+            const slotMetadata = this.getMetadata(component[slot], refs);
+            if (slotMetadata) {
+              if (!members) {
+                members = {};
+              }
+              members[slot] = slotMetadata;
+            }
+          }
+        });
+      }
+
+      // If component is native code function, prototype might be undefined
+      if (type === 'function' && component.prototype) {
+        const prototype = this.getMetadata(component.prototype, refs);
+        if (prototype && prototype.members) {
+          if (!members) {
+            members = {};
+          }
+          members.prototype = prototype;
+        }
+      }
+    }
+
+    if (members) {
+      metadata.members = members;
+    }
+
+    return metadata;
+  }
+
+  isMockFunction(fn) {
+    return !!fn._isMockFunction;
+  }
+
+  fn(implementation) {
+    const fn = this._makeComponent({ type: 'function' });
+    if (implementation) {
+      fn.mockImplementation(implementation);
+    }
+    return fn;
+  }
+
+  spyOn(object, methodName) {
+    const original = object[methodName];
+
+    if (!this.isMockFunction(original)) {
+      if (typeof original !== 'function') {
+        throw new Error(
+        'Cannot spyOn the ' + methodName + ' property; it is not a function');
+
+      }
+
+      object[methodName] = this._makeComponent({ type: 'function' }, () => {
+        object[methodName] = original;
+      });
+      object[methodName].mockImplementation(function () {
+        return original.apply(this, arguments);
+      });
+    }
+
+    return object[methodName];
+  }
+
+  clearAllMocks() {
+    this._mockState = new WeakMap();
+  }
+
+  resetAllMocks() {
+    this._mockConfigRegistry = new WeakMap();
+    this._mockState = new WeakMap();
+  }}
+
+
+
+module.exports = new ModuleMockerClass(global);
\ No newline at end of file
diff --git a/node_modules/jest-mock/package.json b/node_modules/jest-mock/package.json
new file mode 100644
index 000000000..ac6073b18
--- /dev/null
+++ b/node_modules/jest-mock/package.json
@@ -0,0 +1,10 @@
+{
+  "name": "jest-mock",
+  "version": "19.0.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/facebook/jest.git"
+  },
+  "license": "BSD-3-Clause",
+  "main": "build/index.js"
+}