/** @license React v16.7.0
 * react-dom-test-utils.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';



if (process.env.NODE_ENV !== "production") {
  (function() {
'use strict';

var _assign = require('object-assign');
var React = require('react');
var ReactDOM = require('react-dom');

/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var validateFormat = function () {};

{
  validateFormat = function (format) {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  };
}

function invariant(condition, format, a, b, c, d, e, f) {
  validateFormat(format);

  if (!condition) {
    var error = void 0;
    if (format === undefined) {
      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(format.replace(/%s/g, function () {
        return args[argIndex++];
      }));
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
}

// Relying on the `invariant()` implementation lets us
// preserve the format and params in the www builds.

/**
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var warningWithoutStack = function () {};

{
  warningWithoutStack = function (condition, format) {
    for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
      args[_key - 2] = arguments[_key];
    }

    if (format === undefined) {
      throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (args.length > 8) {
      // Check before the condition to catch violations early.
      throw new Error('warningWithoutStack() currently supports at most 8 arguments.');
    }
    if (condition) {
      return;
    }
    if (typeof console !== 'undefined') {
      var argsWithFormat = args.map(function (item) {
        return '' + item;
      });
      argsWithFormat.unshift('Warning: ' + format);

      // We intentionally don't use spread (or .apply) directly because it
      // breaks IE9: https://github.com/facebook/react/issues/13610
      Function.prototype.apply.call(console.error, console, argsWithFormat);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      var argIndex = 0;
      var message = 'Warning: ' + format.replace(/%s/g, function () {
        return args[argIndex++];
      });
      throw new Error(message);
    } catch (x) {}
  };
}

var warningWithoutStack$1 = warningWithoutStack;

/**
 * `ReactInstanceMap` maintains a mapping from a public facing stateful
 * instance (key) and the internal representation (value). This allows public
 * methods to accept the user facing instance as an argument and map them back
 * to internal methods.
 *
 * Note that this module is currently shared and assumed to be stateless.
 * If this becomes an actual Map, that will break.
 */

/**
 * This API should be called `delete` but we'd have to make sure to always
 * transform these to strings for IE support. When this transform is fully
 * supported we can rename it.
 */


function get(key) {
  return key._reactInternalFiber;
}

var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;

// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
// nor polyfill, then a plain number is used for performance.

var FunctionComponent = 0;
var ClassComponent = 1;
 // Before we know whether it is function or class
var HostRoot = 3; // Root of a host tree. Could be nested inside another node.
 // A subtree. Could be an entry point to a different renderer.
var HostComponent = 5;
var HostText = 6;

// Don't change these two values. They're used by React Dev Tools.
var NoEffect = /*              */0;


// You can change the rest (and add more).
var Placement = /*             */2;










// Passive & Update & Callback & Ref & Snapshot


// Union of all host effects

var ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;

var MOUNTING = 1;
var MOUNTED = 2;
var UNMOUNTED = 3;

function isFiberMountedImpl(fiber) {
  var node = fiber;
  if (!fiber.alternate) {
    // If there is no alternate, this might be a new tree that isn't inserted
    // yet. If it is, then it will have a pending insertion effect on it.
    if ((node.effectTag & Placement) !== NoEffect) {
      return MOUNTING;
    }
    while (node.return) {
      node = node.return;
      if ((node.effectTag & Placement) !== NoEffect) {
        return MOUNTING;
      }
    }
  } else {
    while (node.return) {
      node = node.return;
    }
  }
  if (node.tag === HostRoot) {
    // TODO: Check if this was a nested HostRoot when used with
    // renderContainerIntoSubtree.
    return MOUNTED;
  }
  // If we didn't hit the root, that means that we're in an disconnected tree
  // that has been unmounted.
  return UNMOUNTED;
}





function assertIsMounted(fiber) {
  !(isFiberMountedImpl(fiber) === MOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
}

function findCurrentFiberUsingSlowPath(fiber) {
  var alternate = fiber.alternate;
  if (!alternate) {
    // If there is no alternate, then we only need to check if it is mounted.
    var state = isFiberMountedImpl(fiber);
    !(state !== UNMOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
    if (state === MOUNTING) {
      return null;
    }
    return fiber;
  }
  // If we have two possible branches, we'll walk backwards up to the root
  // to see what path the root points to. On the way we may hit one of the
  // special cases and we'll deal with them.
  var a = fiber;
  var b = alternate;
  while (true) {
    var parentA = a.return;
    var parentB = parentA ? parentA.alternate : null;
    if (!parentA || !parentB) {
      // We're at the root.
      break;
    }

    // If both copies of the parent fiber point to the same child, we can
    // assume that the child is current. This happens when we bailout on low
    // priority: the bailed out fiber's child reuses the current child.
    if (parentA.child === parentB.child) {
      var child = parentA.child;
      while (child) {
        if (child === a) {
          // We've determined that A is the current branch.
          assertIsMounted(parentA);
          return fiber;
        }
        if (child === b) {
          // We've determined that B is the current branch.
          assertIsMounted(parentA);
          return alternate;
        }
        child = child.sibling;
      }
      // We should never have an alternate for any mounting node. So the only
      // way this could possibly happen is if this was unmounted, if at all.
      invariant(false, 'Unable to find node on an unmounted component.');
    }

    if (a.return !== b.return) {
      // The return pointer of A and the return pointer of B point to different
      // fibers. We assume that return pointers never criss-cross, so A must
      // belong to the child set of A.return, and B must belong to the child
      // set of B.return.
      a = parentA;
      b = parentB;
    } else {
      // The return pointers point to the same fiber. We'll have to use the
      // default, slow path: scan the child sets of each parent alternate to see
      // which child belongs to which set.
      //
      // Search parent A's child set
      var didFindChild = false;
      var _child = parentA.child;
      while (_child) {
        if (_child === a) {
          didFindChild = true;
          a = parentA;
          b = parentB;
          break;
        }
        if (_child === b) {
          didFindChild = true;
          b = parentA;
          a = parentB;
          break;
        }
        _child = _child.sibling;
      }
      if (!didFindChild) {
        // Search parent B's child set
        _child = parentB.child;
        while (_child) {
          if (_child === a) {
            didFindChild = true;
            a = parentB;
            b = parentA;
            break;
          }
          if (_child === b) {
            didFindChild = true;
            b = parentB;
            a = parentA;
            break;
          }
          _child = _child.sibling;
        }
        !didFindChild ? invariant(false, 'Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.') : void 0;
      }
    }

    !(a.alternate === b) ? invariant(false, 'Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.') : void 0;
  }
  // If the root is not a host container, we're in a disconnected tree. I.e.
  // unmounted.
  !(a.tag === HostRoot) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
  if (a.stateNode.current === a) {
    // We've determined that A is the current branch.
    return fiber;
  }
  // Otherwise B has to be current branch.
  return alternate;
}

/* eslint valid-typeof: 0 */

var EVENT_POOL_SIZE = 10;

/**
 * @interface Event
 * @see http://www.w3.org/TR/DOM-Level-3-Events/
 */
var EventInterface = {
  type: null,
  target: null,
  // currentTarget is set when dispatching; no use in copying it here
  currentTarget: function () {
    return null;
  },
  eventPhase: null,
  bubbles: null,
  cancelable: null,
  timeStamp: function (event) {
    return event.timeStamp || Date.now();
  },
  defaultPrevented: null,
  isTrusted: null
};

function functionThatReturnsTrue() {
  return true;
}

function functionThatReturnsFalse() {
  return false;
}

/**
 * Synthetic events are dispatched by event plugins, typically in response to a
 * top-level event delegation handler.
 *
 * These systems should generally use pooling to reduce the frequency of garbage
 * collection. The system should check `isPersistent` to determine whether the
 * event should be released into the pool after being dispatched. Users that
 * need a persisted event should invoke `persist`.
 *
 * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
 * normalizing browser quirks. Subclasses do not necessarily have to implement a
 * DOM interface; custom application-specific events can also subclass this.
 *
 * @param {object} dispatchConfig Configuration used to dispatch this event.
 * @param {*} targetInst Marker identifying the event target.
 * @param {object} nativeEvent Native browser event.
 * @param {DOMEventTarget} nativeEventTarget Target node.
 */
function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
  {
    // these have a getter/setter for warnings
    delete this.nativeEvent;
    delete this.preventDefault;
    delete this.stopPropagation;
    delete this.isDefaultPrevented;
    delete this.isPropagationStopped;
  }

  this.dispatchConfig = dispatchConfig;
  this._targetInst = targetInst;
  this.nativeEvent = nativeEvent;

  var Interface = this.constructor.Interface;
  for (var propName in Interface) {
    if (!Interface.hasOwnProperty(propName)) {
      continue;
    }
    {
      delete this[propName]; // this has a getter/setter for warnings
    }
    var normalize = Interface[propName];
    if (normalize) {
      this[propName] = normalize(nativeEvent);
    } else {
      if (propName === 'target') {
        this.target = nativeEventTarget;
      } else {
        this[propName] = nativeEvent[propName];
      }
    }
  }

  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
  if (defaultPrevented) {
    this.isDefaultPrevented = functionThatReturnsTrue;
  } else {
    this.isDefaultPrevented = functionThatReturnsFalse;
  }
  this.isPropagationStopped = functionThatReturnsFalse;
  return this;
}

_assign(SyntheticEvent.prototype, {
  preventDefault: function () {
    this.defaultPrevented = true;
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.preventDefault) {
      event.preventDefault();
    } else if (typeof event.returnValue !== 'unknown') {
      event.returnValue = false;
    }
    this.isDefaultPrevented = functionThatReturnsTrue;
  },

  stopPropagation: function () {
    var event = this.nativeEvent;
    if (!event) {
      return;
    }

    if (event.stopPropagation) {
      event.stopPropagation();
    } else if (typeof event.cancelBubble !== 'unknown') {
      // The ChangeEventPlugin registers a "propertychange" event for
      // IE. This event does not support bubbling or cancelling, and
      // any references to cancelBubble throw "Member not found".  A
      // typeof check of "unknown" circumvents this issue (and is also
      // IE specific).
      event.cancelBubble = true;
    }

    this.isPropagationStopped = functionThatReturnsTrue;
  },

  /**
   * We release all dispatched `SyntheticEvent`s after each event loop, adding
   * them back into the pool. This allows a way to hold onto a reference that
   * won't be added back into the pool.
   */
  persist: function () {
    this.isPersistent = functionThatReturnsTrue;
  },

  /**
   * Checks if this event should be released back into the pool.
   *
   * @return {boolean} True if this should not be released, false otherwise.
   */
  isPersistent: functionThatReturnsFalse,

  /**
   * `PooledClass` looks for `destructor` on each instance it releases.
   */
  destructor: function () {
    var Interface = this.constructor.Interface;
    for (var propName in Interface) {
      {
        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
      }
    }
    this.dispatchConfig = null;
    this._targetInst = null;
    this.nativeEvent = null;
    this.isDefaultPrevented = functionThatReturnsFalse;
    this.isPropagationStopped = functionThatReturnsFalse;
    this._dispatchListeners = null;
    this._dispatchInstances = null;
    {
      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
      Object.defineProperty(this, 'isDefaultPrevented', getPooledWarningPropertyDefinition('isDefaultPrevented', functionThatReturnsFalse));
      Object.defineProperty(this, 'isPropagationStopped', getPooledWarningPropertyDefinition('isPropagationStopped', functionThatReturnsFalse));
      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', function () {}));
      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', function () {}));
    }
  }
});

SyntheticEvent.Interface = EventInterface;

/**
 * Helper to reduce boilerplate when creating subclasses.
 */
SyntheticEvent.extend = function (Interface) {
  var Super = this;

  var E = function () {};
  E.prototype = Super.prototype;
  var prototype = new E();

  function Class() {
    return Super.apply(this, arguments);
  }
  _assign(prototype, Class.prototype);
  Class.prototype = prototype;
  Class.prototype.constructor = Class;

  Class.Interface = _assign({}, Super.Interface, Interface);
  Class.extend = Super.extend;
  addEventPoolingTo(Class);

  return Class;
};

addEventPoolingTo(SyntheticEvent);

/**
 * Helper to nullify syntheticEvent instance properties when destructing
 *
 * @param {String} propName
 * @param {?object} getVal
 * @return {object} defineProperty object
 */
function getPooledWarningPropertyDefinition(propName, getVal) {
  var isFunction = typeof getVal === 'function';
  return {
    configurable: true,
    set: set,
    get: get
  };

  function set(val) {
    var action = isFunction ? 'setting the method' : 'setting the property';
    warn(action, 'This is effectively a no-op');
    return val;
  }

  function get() {
    var action = isFunction ? 'accessing the method' : 'accessing the property';
    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
    warn(action, result);
    return getVal;
  }

  function warn(action, result) {
    var warningCondition = false;
    !warningCondition ? warningWithoutStack$1(false, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result) : void 0;
  }
}

function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) {
  var EventConstructor = this;
  if (EventConstructor.eventPool.length) {
    var instance = EventConstructor.eventPool.pop();
    EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst);
    return instance;
  }
  return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst);
}

function releasePooledEvent(event) {
  var EventConstructor = this;
  !(event instanceof EventConstructor) ? invariant(false, 'Trying to release an event instance into a pool of a different type.') : void 0;
  event.destructor();
  if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) {
    EventConstructor.eventPool.push(event);
  }
}

function addEventPoolingTo(EventConstructor) {
  EventConstructor.eventPool = [];
  EventConstructor.getPooled = getPooledEvent;
  EventConstructor.release = releasePooledEvent;
}

/**
 * Forked from fbjs/warning:
 * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
 *
 * Only change is we use console.warn instead of console.error,
 * and do nothing when 'console' is not supported.
 * This really simplifies the code.
 * ---
 * Similar to invariant but only logs a warning if the condition is not met.
 * This can be used to log issues in development environments in critical
 * paths. Removing the logging code for production environments will keep the
 * same logic and follow the same code paths.
 */

var lowPriorityWarning = function () {};

{
  var printWarning = function (format) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      args[_key - 1] = arguments[_key];
    }

    var argIndex = 0;
    var message = 'Warning: ' + format.replace(/%s/g, function () {
      return args[argIndex++];
    });
    if (typeof console !== 'undefined') {
      console.warn(message);
    }
    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };

  lowPriorityWarning = function (condition, format) {
    if (format === undefined) {
      throw new Error('`lowPriorityWarning(condition, format, ...args)` requires a warning ' + 'message argument');
    }
    if (!condition) {
      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
        args[_key2 - 2] = arguments[_key2];
      }

      printWarning.apply(undefined, [format].concat(args));
    }
  };
}

var lowPriorityWarning$1 = lowPriorityWarning;

/**
 * HTML nodeType values that represent the type of the node
 */

var ELEMENT_NODE = 1;

// Do not uses the below two methods directly!
// Instead use constants exported from DOMTopLevelEventTypes in ReactDOM.
// (It is the only module that is allowed to access these methods.)

function unsafeCastStringToDOMTopLevelType(topLevelType) {
  return topLevelType;
}

var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement);

/**
 * Generate a mapping of standard vendor prefixes using the defined style property and event name.
 *
 * @param {string} styleProp
 * @param {string} eventName
 * @returns {object}
 */
function makePrefixMap(styleProp, eventName) {
  var prefixes = {};

  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
  prefixes['Moz' + styleProp] = 'moz' + eventName;

  return prefixes;
}

/**
 * A list of event names to a configurable list of vendor prefixes.
 */
var vendorPrefixes = {
  animationend: makePrefixMap('Animation', 'AnimationEnd'),
  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
  animationstart: makePrefixMap('Animation', 'AnimationStart'),
  transitionend: makePrefixMap('Transition', 'TransitionEnd')
};

/**
 * Event names that have already been detected and prefixed (if applicable).
 */
var prefixedEventNames = {};

/**
 * Element to check for prefixes on.
 */
var style = {};

/**
 * Bootstrap if a DOM exists.
 */
if (canUseDOM) {
  style = document.createElement('div').style;

  // On some platforms, in particular some releases of Android 4.x,
  // the un-prefixed "animation" and "transition" properties are defined on the
  // style object but the events that fire will still be prefixed, so we need
  // to check if the un-prefixed events are usable, and if not remove them from the map.
  if (!('AnimationEvent' in window)) {
    delete vendorPrefixes.animationend.animation;
    delete vendorPrefixes.animationiteration.animation;
    delete vendorPrefixes.animationstart.animation;
  }

  // Same as above
  if (!('TransitionEvent' in window)) {
    delete vendorPrefixes.transitionend.transition;
  }
}

/**
 * Attempts to determine the correct vendor prefixed event name.
 *
 * @param {string} eventName
 * @returns {string}
 */
function getVendorPrefixedEventName(eventName) {
  if (prefixedEventNames[eventName]) {
    return prefixedEventNames[eventName];
  } else if (!vendorPrefixes[eventName]) {
    return eventName;
  }

  var prefixMap = vendorPrefixes[eventName];

  for (var styleProp in prefixMap) {
    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
      return prefixedEventNames[eventName] = prefixMap[styleProp];
    }
  }

  return eventName;
}

/**
 * To identify top level events in ReactDOM, we use constants defined by this
 * module. This is the only module that uses the unsafe* methods to express
 * that the constants actually correspond to the browser event names. This lets
 * us save some bundle size by avoiding a top level type -> event name map.
 * The rest of ReactDOM code should import top level types from this file.
 */
var TOP_ABORT = unsafeCastStringToDOMTopLevelType('abort');
var TOP_ANIMATION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationend'));
var TOP_ANIMATION_ITERATION = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationiteration'));
var TOP_ANIMATION_START = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationstart'));
var TOP_BLUR = unsafeCastStringToDOMTopLevelType('blur');
var TOP_CAN_PLAY = unsafeCastStringToDOMTopLevelType('canplay');
var TOP_CAN_PLAY_THROUGH = unsafeCastStringToDOMTopLevelType('canplaythrough');
var TOP_CANCEL = unsafeCastStringToDOMTopLevelType('cancel');
var TOP_CHANGE = unsafeCastStringToDOMTopLevelType('change');
var TOP_CLICK = unsafeCastStringToDOMTopLevelType('click');
var TOP_CLOSE = unsafeCastStringToDOMTopLevelType('close');
var TOP_COMPOSITION_END = unsafeCastStringToDOMTopLevelType('compositionend');
var TOP_COMPOSITION_START = unsafeCastStringToDOMTopLevelType('compositionstart');
var TOP_COMPOSITION_UPDATE = unsafeCastStringToDOMTopLevelType('compositionupdate');
var TOP_CONTEXT_MENU = unsafeCastStringToDOMTopLevelType('contextmenu');
var TOP_COPY = unsafeCastStringToDOMTopLevelType('copy');
var TOP_CUT = unsafeCastStringToDOMTopLevelType('cut');
var TOP_DOUBLE_CLICK = unsafeCastStringToDOMTopLevelType('dblclick');

var TOP_DRAG = unsafeCastStringToDOMTopLevelType('drag');
var TOP_DRAG_END = unsafeCastStringToDOMTopLevelType('dragend');
var TOP_DRAG_ENTER = unsafeCastStringToDOMTopLevelType('dragenter');
var TOP_DRAG_EXIT = unsafeCastStringToDOMTopLevelType('dragexit');
var TOP_DRAG_LEAVE = unsafeCastStringToDOMTopLevelType('dragleave');
var TOP_DRAG_OVER = unsafeCastStringToDOMTopLevelType('dragover');
var TOP_DRAG_START = unsafeCastStringToDOMTopLevelType('dragstart');
var TOP_DROP = unsafeCastStringToDOMTopLevelType('drop');
var TOP_DURATION_CHANGE = unsafeCastStringToDOMTopLevelType('durationchange');
var TOP_EMPTIED = unsafeCastStringToDOMTopLevelType('emptied');
var TOP_ENCRYPTED = unsafeCastStringToDOMTopLevelType('encrypted');
var TOP_ENDED = unsafeCastStringToDOMTopLevelType('ended');
var TOP_ERROR = unsafeCastStringToDOMTopLevelType('error');
var TOP_FOCUS = unsafeCastStringToDOMTopLevelType('focus');

var TOP_INPUT = unsafeCastStringToDOMTopLevelType('input');

var TOP_KEY_DOWN = unsafeCastStringToDOMTopLevelType('keydown');
var TOP_KEY_PRESS = unsafeCastStringToDOMTopLevelType('keypress');
var TOP_KEY_UP = unsafeCastStringToDOMTopLevelType('keyup');
var TOP_LOAD = unsafeCastStringToDOMTopLevelType('load');
var TOP_LOAD_START = unsafeCastStringToDOMTopLevelType('loadstart');
var TOP_LOADED_DATA = unsafeCastStringToDOMTopLevelType('loadeddata');
var TOP_LOADED_METADATA = unsafeCastStringToDOMTopLevelType('loadedmetadata');

var TOP_MOUSE_DOWN = unsafeCastStringToDOMTopLevelType('mousedown');
var TOP_MOUSE_MOVE = unsafeCastStringToDOMTopLevelType('mousemove');
var TOP_MOUSE_OUT = unsafeCastStringToDOMTopLevelType('mouseout');
var TOP_MOUSE_OVER = unsafeCastStringToDOMTopLevelType('mouseover');
var TOP_MOUSE_UP = unsafeCastStringToDOMTopLevelType('mouseup');
var TOP_PASTE = unsafeCastStringToDOMTopLevelType('paste');
var TOP_PAUSE = unsafeCastStringToDOMTopLevelType('pause');
var TOP_PLAY = unsafeCastStringToDOMTopLevelType('play');
var TOP_PLAYING = unsafeCastStringToDOMTopLevelType('playing');








var TOP_PROGRESS = unsafeCastStringToDOMTopLevelType('progress');
var TOP_RATE_CHANGE = unsafeCastStringToDOMTopLevelType('ratechange');

var TOP_SCROLL = unsafeCastStringToDOMTopLevelType('scroll');
var TOP_SEEKED = unsafeCastStringToDOMTopLevelType('seeked');
var TOP_SEEKING = unsafeCastStringToDOMTopLevelType('seeking');
var TOP_SELECTION_CHANGE = unsafeCastStringToDOMTopLevelType('selectionchange');
var TOP_STALLED = unsafeCastStringToDOMTopLevelType('stalled');

var TOP_SUSPEND = unsafeCastStringToDOMTopLevelType('suspend');
var TOP_TEXT_INPUT = unsafeCastStringToDOMTopLevelType('textInput');
var TOP_TIME_UPDATE = unsafeCastStringToDOMTopLevelType('timeupdate');
var TOP_TOGGLE = unsafeCastStringToDOMTopLevelType('toggle');
var TOP_TOUCH_CANCEL = unsafeCastStringToDOMTopLevelType('touchcancel');
var TOP_TOUCH_END = unsafeCastStringToDOMTopLevelType('touchend');
var TOP_TOUCH_MOVE = unsafeCastStringToDOMTopLevelType('touchmove');
var TOP_TOUCH_START = unsafeCastStringToDOMTopLevelType('touchstart');
var TOP_TRANSITION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('transitionend'));
var TOP_VOLUME_CHANGE = unsafeCastStringToDOMTopLevelType('volumechange');
var TOP_WAITING = unsafeCastStringToDOMTopLevelType('waiting');
var TOP_WHEEL = unsafeCastStringToDOMTopLevelType('wheel');

// List of events that need to be individually attached to media elements.
// Note that events in this list will *not* be listened to at the top level
// unless they're explicitly whitelisted in `ReactBrowserEventEmitter.listenTo`.

var findDOMNode = ReactDOM.findDOMNode;
// Keep in sync with ReactDOMUnstableNativeDependencies.js
// and ReactDOM.js:

var _ReactDOM$__SECRET_IN = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Events;
var getInstanceFromNode = _ReactDOM$__SECRET_IN[0];
var getNodeFromInstance = _ReactDOM$__SECRET_IN[1];
var getFiberCurrentPropsFromNode = _ReactDOM$__SECRET_IN[2];
var injectEventPluginsByName = _ReactDOM$__SECRET_IN[3];
var eventNameDispatchConfigs = _ReactDOM$__SECRET_IN[4];
var accumulateTwoPhaseDispatches = _ReactDOM$__SECRET_IN[5];
var accumulateDirectDispatches = _ReactDOM$__SECRET_IN[6];
var enqueueStateRestore = _ReactDOM$__SECRET_IN[7];
var restoreStateIfNeeded = _ReactDOM$__SECRET_IN[8];
var dispatchEvent = _ReactDOM$__SECRET_IN[9];
var runEventsInBatch = _ReactDOM$__SECRET_IN[10];


function Event(suffix) {}

var hasWarnedAboutDeprecatedMockComponent = false;

/**
 * @class ReactTestUtils
 */

/**
 * Simulates a top level event being dispatched from a raw event that occurred
 * on an `Element` node.
 * @param {number} topLevelType A number from `TopLevelEventTypes`
 * @param {!Element} node The dom to simulate an event occurring on.
 * @param {?Event} fakeNativeEvent Fake native event to use in SyntheticEvent.
 */
function simulateNativeEventOnNode(topLevelType, node, fakeNativeEvent) {
  fakeNativeEvent.target = node;
  dispatchEvent(topLevelType, fakeNativeEvent);
}

/**
 * Simulates a top level event being dispatched from a raw event that occurred
 * on the `ReactDOMComponent` `comp`.
 * @param {Object} topLevelType A type from `BrowserEventConstants.topLevelTypes`.
 * @param {!ReactDOMComponent} comp
 * @param {?Event} fakeNativeEvent Fake native event to use in SyntheticEvent.
 */
function simulateNativeEventOnDOMComponent(topLevelType, comp, fakeNativeEvent) {
  simulateNativeEventOnNode(topLevelType, findDOMNode(comp), fakeNativeEvent);
}

function findAllInRenderedFiberTreeInternal(fiber, test) {
  if (!fiber) {
    return [];
  }
  var currentParent = findCurrentFiberUsingSlowPath(fiber);
  if (!currentParent) {
    return [];
  }
  var node = currentParent;
  var ret = [];
  while (true) {
    if (node.tag === HostComponent || node.tag === HostText || node.tag === ClassComponent || node.tag === FunctionComponent) {
      var publicInst = node.stateNode;
      if (test(publicInst)) {
        ret.push(publicInst);
      }
    }
    if (node.child) {
      node.child.return = node;
      node = node.child;
      continue;
    }
    if (node === currentParent) {
      return ret;
    }
    while (!node.sibling) {
      if (!node.return || node.return === currentParent) {
        return ret;
      }
      node = node.return;
    }
    node.sibling.return = node.return;
    node = node.sibling;
  }
}

function validateClassInstance(inst, methodName) {
  if (!inst) {
    // This is probably too relaxed but it's existing behavior.
    return;
  }
  if (get(inst)) {
    // This is a public instance indeed.
    return;
  }
  var received = void 0;
  var stringified = '' + inst;
  if (Array.isArray(inst)) {
    received = 'an array';
  } else if (inst && inst.nodeType === ELEMENT_NODE && inst.tagName) {
    received = 'a DOM node';
  } else if (stringified === '[object Object]') {
    received = 'object with keys {' + Object.keys(inst).join(', ') + '}';
  } else {
    received = stringified;
  }
  invariant(false, '%s(...): the first argument must be a React class instance. Instead received: %s.', methodName, received);
}

/**
 * Utilities for making it easy to test React components.
 *
 * See https://reactjs.org/docs/test-utils.html
 *
 * Todo: Support the entire DOM.scry query syntax. For now, these simple
 * utilities will suffice for testing purposes.
 * @lends ReactTestUtils
 */
var ReactTestUtils = {
  renderIntoDocument: function (element) {
    var div = document.createElement('div');
    // None of our tests actually require attaching the container to the
    // DOM, and doing so creates a mess that we rely on test isolation to
    // clean up, so we're going to stop honoring the name of this method
    // (and probably rename it eventually) if no problems arise.
    // document.documentElement.appendChild(div);
    return ReactDOM.render(element, div);
  },

  isElement: function (element) {
    return React.isValidElement(element);
  },

  isElementOfType: function (inst, convenienceConstructor) {
    return React.isValidElement(inst) && inst.type === convenienceConstructor;
  },

  isDOMComponent: function (inst) {
    return !!(inst && inst.nodeType === ELEMENT_NODE && inst.tagName);
  },

  isDOMComponentElement: function (inst) {
    return !!(inst && React.isValidElement(inst) && !!inst.tagName);
  },

  isCompositeComponent: function (inst) {
    if (ReactTestUtils.isDOMComponent(inst)) {
      // Accessing inst.setState warns; just return false as that'll be what
      // this returns when we have DOM nodes as refs directly
      return false;
    }
    return inst != null && typeof inst.render === 'function' && typeof inst.setState === 'function';
  },

  isCompositeComponentWithType: function (inst, type) {
    if (!ReactTestUtils.isCompositeComponent(inst)) {
      return false;
    }
    var internalInstance = get(inst);
    var constructor = internalInstance.type;
    return constructor === type;
  },

  findAllInRenderedTree: function (inst, test) {
    validateClassInstance(inst, 'findAllInRenderedTree');
    if (!inst) {
      return [];
    }
    var internalInstance = get(inst);
    return findAllInRenderedFiberTreeInternal(internalInstance, test);
  },

  /**
   * Finds all instance of components in the rendered tree that are DOM
   * components with the class name matching `className`.
   * @return {array} an array of all the matches.
   */
  scryRenderedDOMComponentsWithClass: function (root, classNames) {
    validateClassInstance(root, 'scryRenderedDOMComponentsWithClass');
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      if (ReactTestUtils.isDOMComponent(inst)) {
        var className = inst.className;
        if (typeof className !== 'string') {
          // SVG, probably.
          className = inst.getAttribute('class') || '';
        }
        var classList = className.split(/\s+/);

        if (!Array.isArray(classNames)) {
          !(classNames !== undefined) ? invariant(false, 'TestUtils.scryRenderedDOMComponentsWithClass expects a className as a second argument.') : void 0;
          classNames = classNames.split(/\s+/);
        }
        return classNames.every(function (name) {
          return classList.indexOf(name) !== -1;
        });
      }
      return false;
    });
  },

  /**
   * Like scryRenderedDOMComponentsWithClass but expects there to be one result,
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactDOMComponent} The one match.
   */
  findRenderedDOMComponentWithClass: function (root, className) {
    validateClassInstance(root, 'findRenderedDOMComponentWithClass');
    var all = ReactTestUtils.scryRenderedDOMComponentsWithClass(root, className);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for class:' + className);
    }
    return all[0];
  },

  /**
   * Finds all instance of components in the rendered tree that are DOM
   * components with the tag name matching `tagName`.
   * @return {array} an array of all the matches.
   */
  scryRenderedDOMComponentsWithTag: function (root, tagName) {
    validateClassInstance(root, 'scryRenderedDOMComponentsWithTag');
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      return ReactTestUtils.isDOMComponent(inst) && inst.tagName.toUpperCase() === tagName.toUpperCase();
    });
  },

  /**
   * Like scryRenderedDOMComponentsWithTag but expects there to be one result,
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactDOMComponent} The one match.
   */
  findRenderedDOMComponentWithTag: function (root, tagName) {
    validateClassInstance(root, 'findRenderedDOMComponentWithTag');
    var all = ReactTestUtils.scryRenderedDOMComponentsWithTag(root, tagName);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for tag:' + tagName);
    }
    return all[0];
  },

  /**
   * Finds all instances of components with type equal to `componentType`.
   * @return {array} an array of all the matches.
   */
  scryRenderedComponentsWithType: function (root, componentType) {
    validateClassInstance(root, 'scryRenderedComponentsWithType');
    return ReactTestUtils.findAllInRenderedTree(root, function (inst) {
      return ReactTestUtils.isCompositeComponentWithType(inst, componentType);
    });
  },

  /**
   * Same as `scryRenderedComponentsWithType` but expects there to be one result
   * and returns that one result, or throws exception if there is any other
   * number of matches besides one.
   * @return {!ReactComponent} The one match.
   */
  findRenderedComponentWithType: function (root, componentType) {
    validateClassInstance(root, 'findRenderedComponentWithType');
    var all = ReactTestUtils.scryRenderedComponentsWithType(root, componentType);
    if (all.length !== 1) {
      throw new Error('Did not find exactly one match (found: ' + all.length + ') ' + 'for componentType:' + componentType);
    }
    return all[0];
  },

  /**
   * Pass a mocked component module to this method to augment it with
   * useful methods that allow it to be used as a dummy React component.
   * Instead of rendering as usual, the component will become a simple
   * <div> containing any provided children.
   *
   * @param {object} module the mock function object exported from a
   *                        module that defines the component to be mocked
   * @param {?string} mockTagName optional dummy root tag name to return
   *                              from render method (overrides
   *                              module.mockTagName if provided)
   * @return {object} the ReactTestUtils object (for chaining)
   */
  mockComponent: function (module, mockTagName) {
    if (!hasWarnedAboutDeprecatedMockComponent) {
      hasWarnedAboutDeprecatedMockComponent = true;
      lowPriorityWarning$1(false, 'ReactTestUtils.mockComponent() is deprecated. ' + 'Use shallow rendering or jest.mock() instead.\n\n' + 'See https://fb.me/test-utils-mock-component for more information.');
    }

    mockTagName = mockTagName || module.mockTagName || 'div';

    module.prototype.render.mockImplementation(function () {
      return React.createElement(mockTagName, null, this.props.children);
    });

    return this;
  },

  nativeTouchData: function (x, y) {
    return {
      touches: [{ pageX: x, pageY: y }]
    };
  },

  Simulate: null,
  SimulateNative: {}
};

/**
 * Exports:
 *
 * - `ReactTestUtils.Simulate.click(Element)`
 * - `ReactTestUtils.Simulate.mouseMove(Element)`
 * - `ReactTestUtils.Simulate.change(Element)`
 * - ... (All keys from event plugin `eventTypes` objects)
 */
function makeSimulator(eventType) {
  return function (domNode, eventData) {
    !!React.isValidElement(domNode) ? invariant(false, 'TestUtils.Simulate expected a DOM node as the first argument but received a React element. Pass the DOM node you wish to simulate the event on instead. Note that TestUtils.Simulate will not work if you are using shallow rendering.') : void 0;
    !!ReactTestUtils.isCompositeComponent(domNode) ? invariant(false, 'TestUtils.Simulate expected a DOM node as the first argument but received a component instance. Pass the DOM node you wish to simulate the event on instead.') : void 0;

    var dispatchConfig = eventNameDispatchConfigs[eventType];

    var fakeNativeEvent = new Event();
    fakeNativeEvent.target = domNode;
    fakeNativeEvent.type = eventType.toLowerCase();

    // We don't use SyntheticEvent.getPooled in order to not have to worry about
    // properly destroying any properties assigned from `eventData` upon release
    var targetInst = getInstanceFromNode(domNode);
    var event = new SyntheticEvent(dispatchConfig, targetInst, fakeNativeEvent, domNode);

    // Since we aren't using pooling, always persist the event. This will make
    // sure it's marked and won't warn when setting additional properties.
    event.persist();
    _assign(event, eventData);

    if (dispatchConfig.phasedRegistrationNames) {
      accumulateTwoPhaseDispatches(event);
    } else {
      accumulateDirectDispatches(event);
    }

    ReactDOM.unstable_batchedUpdates(function () {
      // Normally extractEvent enqueues a state restore, but we'll just always
      // do that since we we're by-passing it here.
      enqueueStateRestore(domNode);
      runEventsInBatch(event);
    });
    restoreStateIfNeeded();
  };
}

function buildSimulators() {
  ReactTestUtils.Simulate = {};

  var eventType = void 0;
  for (eventType in eventNameDispatchConfigs) {
    /**
     * @param {!Element|ReactDOMComponent} domComponentOrNode
     * @param {?object} eventData Fake event data to use in SyntheticEvent.
     */
    ReactTestUtils.Simulate[eventType] = makeSimulator(eventType);
  }
}

buildSimulators();

/**
 * Exports:
 *
 * - `ReactTestUtils.SimulateNative.click(Element/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseMove(Element/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseIn/ReactDOMComponent)`
 * - `ReactTestUtils.SimulateNative.mouseOut(Element/ReactDOMComponent)`
 * - ... (All keys from `BrowserEventConstants.topLevelTypes`)
 *
 * Note: Top level event types are a subset of the entire set of handler types
 * (which include a broader set of "synthetic" events). For example, onDragDone
 * is a synthetic event. Except when testing an event plugin or React's event
 * handling code specifically, you probably want to use ReactTestUtils.Simulate
 * to dispatch synthetic events.
 */

function makeNativeSimulator(eventType, topLevelType) {
  return function (domComponentOrNode, nativeEventData) {
    var fakeNativeEvent = new Event(eventType);
    _assign(fakeNativeEvent, nativeEventData);
    if (ReactTestUtils.isDOMComponent(domComponentOrNode)) {
      simulateNativeEventOnDOMComponent(topLevelType, domComponentOrNode, fakeNativeEvent);
    } else if (domComponentOrNode.tagName) {
      // Will allow on actual dom nodes.
      simulateNativeEventOnNode(topLevelType, domComponentOrNode, fakeNativeEvent);
    }
  };
}

[[TOP_ABORT, 'abort'], [TOP_ANIMATION_END, 'animationEnd'], [TOP_ANIMATION_ITERATION, 'animationIteration'], [TOP_ANIMATION_START, 'animationStart'], [TOP_BLUR, 'blur'], [TOP_CAN_PLAY_THROUGH, 'canPlayThrough'], [TOP_CAN_PLAY, 'canPlay'], [TOP_CANCEL, 'cancel'], [TOP_CHANGE, 'change'], [TOP_CLICK, 'click'], [TOP_CLOSE, 'close'], [TOP_COMPOSITION_END, 'compositionEnd'], [TOP_COMPOSITION_START, 'compositionStart'], [TOP_COMPOSITION_UPDATE, 'compositionUpdate'], [TOP_CONTEXT_MENU, 'contextMenu'], [TOP_COPY, 'copy'], [TOP_CUT, 'cut'], [TOP_DOUBLE_CLICK, 'doubleClick'], [TOP_DRAG_END, 'dragEnd'], [TOP_DRAG_ENTER, 'dragEnter'], [TOP_DRAG_EXIT, 'dragExit'], [TOP_DRAG_LEAVE, 'dragLeave'], [TOP_DRAG_OVER, 'dragOver'], [TOP_DRAG_START, 'dragStart'], [TOP_DRAG, 'drag'], [TOP_DROP, 'drop'], [TOP_DURATION_CHANGE, 'durationChange'], [TOP_EMPTIED, 'emptied'], [TOP_ENCRYPTED, 'encrypted'], [TOP_ENDED, 'ended'], [TOP_ERROR, 'error'], [TOP_FOCUS, 'focus'], [TOP_INPUT, 'input'], [TOP_KEY_DOWN, 'keyDown'], [TOP_KEY_PRESS, 'keyPress'], [TOP_KEY_UP, 'keyUp'], [TOP_LOAD_START, 'loadStart'], [TOP_LOAD_START, 'loadStart'], [TOP_LOAD, 'load'], [TOP_LOADED_DATA, 'loadedData'], [TOP_LOADED_METADATA, 'loadedMetadata'], [TOP_MOUSE_DOWN, 'mouseDown'], [TOP_MOUSE_MOVE, 'mouseMove'], [TOP_MOUSE_OUT, 'mouseOut'], [TOP_MOUSE_OVER, 'mouseOver'], [TOP_MOUSE_UP, 'mouseUp'], [TOP_PASTE, 'paste'], [TOP_PAUSE, 'pause'], [TOP_PLAY, 'play'], [TOP_PLAYING, 'playing'], [TOP_PROGRESS, 'progress'], [TOP_RATE_CHANGE, 'rateChange'], [TOP_SCROLL, 'scroll'], [TOP_SEEKED, 'seeked'], [TOP_SEEKING, 'seeking'], [TOP_SELECTION_CHANGE, 'selectionChange'], [TOP_STALLED, 'stalled'], [TOP_SUSPEND, 'suspend'], [TOP_TEXT_INPUT, 'textInput'], [TOP_TIME_UPDATE, 'timeUpdate'], [TOP_TOGGLE, 'toggle'], [TOP_TOUCH_CANCEL, 'touchCancel'], [TOP_TOUCH_END, 'touchEnd'], [TOP_TOUCH_MOVE, 'touchMove'], [TOP_TOUCH_START, 'touchStart'], [TOP_TRANSITION_END, 'transitionEnd'], [TOP_VOLUME_CHANGE, 'volumeChange'], [TOP_WAITING, 'waiting'], [TOP_WHEEL, 'wheel']].forEach(function (_ref) {
  var topLevelType = _ref[0],
      eventType = _ref[1];

  /**
   * @param {!Element|ReactDOMComponent} domComponentOrNode
   * @param {?Event} nativeEventData Fake native event to use in SyntheticEvent.
   */
  ReactTestUtils.SimulateNative[eventType] = makeNativeSimulator(eventType, topLevelType);
});



var ReactTestUtils$2 = Object.freeze({
	default: ReactTestUtils
});

var ReactTestUtils$3 = ( ReactTestUtils$2 && ReactTestUtils ) || ReactTestUtils$2;

// TODO: decide on the top-level export form.
// This is hacky but makes it work with both Rollup and Jest.
var testUtils = ReactTestUtils$3.default || ReactTestUtils$3;

module.exports = testUtils;
  })();
}