/**
 * Copyright 2013-2015, 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.
 *
 * @emails react-core
 */

'use strict';

var PropTypes;
var React;
var ReactFragment;
var ReactPropTypeLocations;
var ReactTestUtils;

var Component;
var MyComponent;
var requiredMessage =
  'Required prop `testProp` was not specified in `testComponent`.';

function typeCheckFail(declaration, value, message) {
  var props = {testProp: value};
  var error = declaration(
    props,
    'testProp',
    'testComponent',
    ReactPropTypeLocations.prop
  );
  expect(error instanceof Error).toBe(true);
  expect(error.message).toBe(message);
}

function typeCheckPass(declaration, value) {
  var props = {testProp: value};
  var error = declaration(
    props,
    'testProp',
    'testComponent',
    ReactPropTypeLocations.prop
  );
  expect(error).toBe(null);
}

describe('ReactPropTypes', function() {
  beforeEach(function() {
    PropTypes = require('ReactPropTypes');
    React = require('React');
    ReactFragment = require('ReactFragment');
    ReactPropTypeLocations = require('ReactPropTypeLocations');
    ReactTestUtils = require('ReactTestUtils');
  });

  describe('Primitive Types', function() {
    it('should warn for invalid strings', function() {
      typeCheckFail(
        PropTypes.string,
        [],
        'Invalid prop `testProp` of type `array` supplied to ' +
        '`testComponent`, expected `string`.'
      );
      typeCheckFail(
        PropTypes.string,
        false,
        'Invalid prop `testProp` of type `boolean` supplied to ' +
        '`testComponent`, expected `string`.'
      );
      typeCheckFail(
        PropTypes.string,
        0,
        'Invalid prop `testProp` of type `number` supplied to ' +
        '`testComponent`, expected `string`.'
      );
      typeCheckFail(
        PropTypes.string,
        {},
        'Invalid prop `testProp` of type `object` supplied to ' +
        '`testComponent`, expected `string`.'
      );
    });

    it('should fail date and regexp correctly', function() {
      typeCheckFail(
        PropTypes.string,
        new Date(),
        'Invalid prop `testProp` of type `date` supplied to ' +
        '`testComponent`, expected `string`.'
      );
      typeCheckFail(
        PropTypes.string,
        /please/,
        'Invalid prop `testProp` of type `regexp` supplied to ' +
        '`testComponent`, expected `string`.'
      );
    });

    it('should not warn for valid values', function() {
      typeCheckPass(PropTypes.array, []);
      typeCheckPass(PropTypes.bool, false);
      typeCheckPass(PropTypes.func, function() {});
      typeCheckPass(PropTypes.number, 0);
      typeCheckPass(PropTypes.string, '');
      typeCheckPass(PropTypes.object, {});
      typeCheckPass(PropTypes.object, new Date());
      typeCheckPass(PropTypes.object, /please/);
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.string, null);
      typeCheckPass(PropTypes.string, undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(PropTypes.string.isRequired, null, requiredMessage);
      typeCheckFail(PropTypes.string.isRequired, undefined, requiredMessage);
    });
  });

  describe('Any type', function() {
    it('should should accept any value', function() {
      typeCheckPass(PropTypes.any, 0);
      typeCheckPass(PropTypes.any, 'str');
      typeCheckPass(PropTypes.any, []);
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.any, null);
      typeCheckPass(PropTypes.any, undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(PropTypes.any.isRequired, null, requiredMessage);
      typeCheckFail(PropTypes.any.isRequired, undefined, requiredMessage);
    });
  });

  describe('ArrayOf Type', function() {
    it('should support the arrayOf propTypes', function() {
      typeCheckPass(PropTypes.arrayOf(PropTypes.number), [1, 2, 3]);
      typeCheckPass(PropTypes.arrayOf(PropTypes.string), ['a', 'b', 'c']);
      typeCheckPass(PropTypes.arrayOf(PropTypes.oneOf(['a', 'b'])), ['a', 'b']);
    });

    it('should support arrayOf with complex types', function() {
      typeCheckPass(
        PropTypes.arrayOf(PropTypes.shape({a: PropTypes.number.isRequired})),
        [{a: 1}, {a: 2}]
      );

      function Thing() {}
      typeCheckPass(
        PropTypes.arrayOf(PropTypes.instanceOf(Thing)),
        [new Thing(), new Thing()]
      );
    });

    it('should warn with invalid items in the array', function() {
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number),
        [1, 2, 'b'],
        'Invalid prop `testProp[2]` of type `string` supplied to ' +
        '`testComponent`, expected `number`.'
      );
    });

    it('should warn with invalid complex types', function() {
      function Thing() {}
      var name = Thing.name || '<<anonymous>>';

      typeCheckFail(
        PropTypes.arrayOf(PropTypes.instanceOf(Thing)),
        [new Thing(), 'xyz'],
        'Invalid prop `testProp[1]` of type `String` supplied to ' +
        '`testComponent`, expected instance of `' + name + '`.'
      );
    });

    it('should warn when passed something other than an array', function() {
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number),
        {'0': 'maybe-array', length: 1},
        'Invalid prop `testProp` of type `object` supplied to ' +
        '`testComponent`, expected an array.'
      );
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number),
        123,
        'Invalid prop `testProp` of type `number` supplied to ' +
        '`testComponent`, expected an array.'
      );
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number),
        'string',
        'Invalid prop `testProp` of type `string` supplied to ' +
        '`testComponent`, expected an array.'
      );
    });

    it('should not warn when passing an empty array', function() {
      typeCheckPass(PropTypes.arrayOf(PropTypes.number), []);
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.arrayOf(PropTypes.number), null);
      typeCheckPass(PropTypes.arrayOf(PropTypes.number), undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number).isRequired,
        null,
        requiredMessage
      );
      typeCheckFail(
        PropTypes.arrayOf(PropTypes.number).isRequired,
        undefined,
        requiredMessage
      );
    });
  });

  describe('Component Type', function() {
    beforeEach(function() {
      Component = React.createClass({
        propTypes: {
          label: PropTypes.element.isRequired,
        },

        render: function() {
          return <div>{this.props.label}</div>;
        },
      });
      spyOn(console, 'error');
    });

    it('should support components', () => {
      typeCheckPass(PropTypes.element, <div />);
    });

    it('should not support multiple components or scalar values', () => {
      var message = 'Invalid prop `testProp` supplied to `testComponent`, ' +
        'expected a single ReactElement.';
      typeCheckFail(PropTypes.element, [<div />, <div />], message);
      typeCheckFail(PropTypes.element, 123, message);
      typeCheckFail(PropTypes.element, 'foo', message);
      typeCheckFail(PropTypes.element, false, message);
    });

    it('should be able to define a single child as label', () => {
      var instance = <Component label={<div />} />;
      instance = ReactTestUtils.renderIntoDocument(instance);

      expect(console.error.argsForCall.length).toBe(0);
    });

    it('should warn when passing no label and isRequired is set', () => {
      var instance = <Component />;
      instance = ReactTestUtils.renderIntoDocument(instance);

      expect(console.error.argsForCall.length).toBe(1);
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.element, null);
      typeCheckPass(PropTypes.element, undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(PropTypes.element.isRequired, null, requiredMessage);
      typeCheckFail(PropTypes.element.isRequired, undefined, requiredMessage);
    });
  });

  describe('Instance Types', function() {
    it('should warn for invalid instances', function() {
      function Person() {}
      function Cat() {}
      var personName = Person.name || '<<anonymous>>';
      var dateName = Date.name || '<<anonymous>>';
      var regExpName = RegExp.name || '<<anonymous>>';

      typeCheckFail(
        PropTypes.instanceOf(Person),
        false,
        'Invalid prop `testProp` of type `Boolean` supplied to ' +
        '`testComponent`, expected instance of `' + personName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(Person),
        {},
        'Invalid prop `testProp` of type `Object` supplied to ' +
        '`testComponent`, expected instance of `' + personName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(Person),
        '',
        'Invalid prop `testProp` of type `String` supplied to ' +
        '`testComponent`, expected instance of `' + personName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(Date),
        {},
        'Invalid prop `testProp` of type `Object` supplied to ' +
        '`testComponent`, expected instance of `' + dateName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(RegExp),
        {},
        'Invalid prop `testProp` of type `Object` supplied to ' +
        '`testComponent`, expected instance of `' + regExpName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(Person),
        new Cat(),
        'Invalid prop `testProp` of type `Cat` supplied to ' +
        '`testComponent`, expected instance of `' + personName + '`.'
      );
      typeCheckFail(
        PropTypes.instanceOf(Person),
        Object.create(null),
        'Invalid prop `testProp` of type `<<anonymous>>` supplied to ' +
        '`testComponent`, expected instance of `' + personName + '`.'
      );
    });

    it('should not warn for valid values', function() {
      function Person() {}
      function Engineer() {}
      Engineer.prototype = new Person();

      typeCheckPass(PropTypes.instanceOf(Person), new Person());
      typeCheckPass(PropTypes.instanceOf(Person), new Engineer());

      typeCheckPass(PropTypes.instanceOf(Date), new Date());
      typeCheckPass(PropTypes.instanceOf(RegExp), /please/);
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.instanceOf(String), null);
      typeCheckPass(PropTypes.instanceOf(String), undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.instanceOf(String).isRequired, null, requiredMessage
      );
      typeCheckFail(
        PropTypes.instanceOf(String).isRequired, undefined, requiredMessage
      );
    });
  });

  describe('React Component Types', function() {
    beforeEach(function() {
      MyComponent = React.createClass({
        render: function() {
          return <div />;
        },
      });
    });

    it('should warn for invalid values', function() {
      var failMessage = 'Invalid prop `testProp` supplied to ' +
        '`testComponent`, expected a ReactNode.';
      typeCheckFail(PropTypes.node, true, failMessage);
      typeCheckFail(PropTypes.node, function() {}, failMessage);
      typeCheckFail(PropTypes.node, {key: function() {}}, failMessage);
      typeCheckFail(PropTypes.node, {key: <div />}, failMessage);
    });

    it('should not warn for valid values', function() {
      spyOn(console, 'error');
      typeCheckPass(PropTypes.node, <div />);
      typeCheckPass(PropTypes.node, false);
      typeCheckPass(PropTypes.node, <MyComponent />);
      typeCheckPass(PropTypes.node, 'Some string');
      typeCheckPass(PropTypes.node, []);

      typeCheckPass(PropTypes.node, [
        123,
        'Some string',
        <div />,
        ['Another string', [456], <span />, <MyComponent />],
        <MyComponent />,
      ]);

      // Object of renderable things
      var frag = ReactFragment.create;
      typeCheckPass(PropTypes.node, frag({
        k0: 123,
        k1: 'Some string',
        k2: <div />,
        k3: frag({
          k30: <MyComponent />,
          k31: frag({k310: <a />}),
          k32: 'Another string',
        }),
        k4: null,
        k5: undefined,
      }));
      expect(console.error.calls).toEqual([]);
    });

    it('should not warn for iterables', function() {
      var iterable = {
        '@@iterator': function() {
          var i = 0;
          return {
            next: function() {
              var done = ++i > 2;
              return {value: done ? undefined : <MyComponent />, done: done};
            },
          };
        },
      };

      typeCheckPass(PropTypes.node, iterable);
    });

    it('should not warn for entry iterables', function() {
      var iterable = {
        '@@iterator': function() {
          var i = 0;
          return {
            next: function() {
              var done = ++i > 2;
              return {value: done ? undefined : ['#' + i, <MyComponent />], done: done};
            },
          };
        },
      };
      iterable.entries = iterable['@@iterator'];

      typeCheckPass(PropTypes.node, iterable);
    });

    it('should not warn for null/undefined if not required', function() {
      typeCheckPass(PropTypes.node, null);
      typeCheckPass(PropTypes.node, undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.node.isRequired,
        null,
        'Required prop `testProp` was not specified in `testComponent`.'
      );
      typeCheckFail(
        PropTypes.node.isRequired,
        undefined,
        'Required prop `testProp` was not specified in `testComponent`.'
      );
    });

    it('should accept empty array for required props', function() {
      typeCheckPass(PropTypes.node.isRequired, []);
    });
  });

  describe('ObjectOf Type', function() {
    it('should support the objectOf propTypes', function() {
      typeCheckPass(PropTypes.objectOf(PropTypes.number), {a: 1, b: 2, c: 3});
      typeCheckPass(
        PropTypes.objectOf(PropTypes.string),
        {a: 'a', b: 'b', c: 'c'}
      );
      typeCheckPass(
        PropTypes.objectOf(PropTypes.oneOf(['a', 'b'])),
        {a: 'a', b: 'b'}
      );
    });

    it('should support objectOf with complex types', function() {
      typeCheckPass(
        PropTypes.objectOf(PropTypes.shape({a: PropTypes.number.isRequired})),
        {a: {a: 1}, b: {a: 2}}
      );

      function Thing() {}
      typeCheckPass(
        PropTypes.objectOf(PropTypes.instanceOf(Thing)),
        {a: new Thing(), b: new Thing()}
      );
    });

    it('should warn with invalid items in the object', function() {
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number),
        {a: 1, b: 2, c: 'b'},
        'Invalid prop `testProp.c` of type `string` supplied to `testComponent`, ' +
        'expected `number`.'
      );
    });

    it('should warn with invalid complex types', function() {
      function Thing() {}
      var name = Thing.name || '<<anonymous>>';

      typeCheckFail(
        PropTypes.objectOf(PropTypes.instanceOf(Thing)),
        {a: new Thing(), b: 'xyz'},
        'Invalid prop `testProp.b` of type `String` supplied to ' +
        '`testComponent`, expected instance of `' + name + '`.'
      );
    });

    it('should warn when passed something other than an object', function() {
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number),
        [1, 2],
        'Invalid prop `testProp` of type `array` supplied to ' +
        '`testComponent`, expected an object.'
      );
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number),
        123,
        'Invalid prop `testProp` of type `number` supplied to ' +
        '`testComponent`, expected an object.'
      );
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number),
        'string',
        'Invalid prop `testProp` of type `string` supplied to ' +
        '`testComponent`, expected an object.'
      );
    });

    it('should not warn when passing an empty object', function() {
      typeCheckPass(PropTypes.objectOf(PropTypes.number), {});
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.objectOf(PropTypes.number), null);
      typeCheckPass(PropTypes.objectOf(PropTypes.number), undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number).isRequired,
        null,
        requiredMessage
      );
      typeCheckFail(
        PropTypes.objectOf(PropTypes.number).isRequired,
        undefined,
        requiredMessage
      );
    });
  });

  describe('OneOf Types', function() {
    it('should fail for invalid argument', function() {
      typeCheckFail(
        PropTypes.oneOf('red', 'blue'),
        'red',
        'Invalid argument supplied to oneOf, expected an instance of array.'
      );
    });

    it('should warn for invalid strings', function() {
      typeCheckFail(
        PropTypes.oneOf(['red', 'blue']),
        true,
        'Invalid prop `testProp` of value `true` supplied to ' +
        '`testComponent`, expected one of ["red","blue"].'
      );
      typeCheckFail(
        PropTypes.oneOf(['red', 'blue']),
        [],
        'Invalid prop `testProp` of value `` supplied to `testComponent`, ' +
        'expected one of ["red","blue"].'
      );
      typeCheckFail(
        PropTypes.oneOf(['red', 'blue']),
        '',
        'Invalid prop `testProp` of value `` supplied to `testComponent`, ' +
        'expected one of ["red","blue"].'
      );
      typeCheckFail(
        PropTypes.oneOf([0, 'false']),
        false,
        'Invalid prop `testProp` of value `false` supplied to ' +
        '`testComponent`, expected one of [0,"false"].'
      );
    });

    it('should not warn for valid values', function() {
      typeCheckPass(PropTypes.oneOf(['red', 'blue']), 'red');
      typeCheckPass(PropTypes.oneOf(['red', 'blue']), 'blue');
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(PropTypes.oneOf(['red', 'blue']), null);
      typeCheckPass(PropTypes.oneOf(['red', 'blue']), undefined);
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.oneOf(['red', 'blue']).isRequired,
        null,
        requiredMessage
      );
      typeCheckFail(
        PropTypes.oneOf(['red', 'blue']).isRequired,
        undefined,
        requiredMessage
      );
    });
  });

  describe('Union Types', function() {
    it('should fail for invalid argument', function() {
      typeCheckFail(
        PropTypes.oneOfType(PropTypes.string, PropTypes.number),
        'red',
        'Invalid argument supplied to oneOfType, expected an instance of array.'
      );
    });

    it('should warn if none of the types are valid', function() {
      typeCheckFail(
        PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
        [],
        'Invalid prop `testProp` supplied to `testComponent`.'
      );

      var checker = PropTypes.oneOfType([
        PropTypes.shape({a: PropTypes.number.isRequired}),
        PropTypes.shape({b: PropTypes.number.isRequired}),
      ]);
      typeCheckFail(
        checker,
        {c: 1},
        'Invalid prop `testProp` supplied to `testComponent`.'
      );
    });

    it('should not warn if one of the types are valid', function() {
      var checker = PropTypes.oneOfType([
        PropTypes.string,
        PropTypes.number,
      ]);
      typeCheckPass(checker, null);
      typeCheckPass(checker, 'foo');
      typeCheckPass(checker, 123);

      checker = PropTypes.oneOfType([
        PropTypes.shape({a: PropTypes.number.isRequired}),
        PropTypes.shape({b: PropTypes.number.isRequired}),
      ]);
      typeCheckPass(checker, {a: 1});
      typeCheckPass(checker, {b: 1});
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(
        PropTypes.oneOfType([PropTypes.string, PropTypes.number]), null
      );
      typeCheckPass(
        PropTypes.oneOfType([PropTypes.string, PropTypes.number]), undefined
      );
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.oneOfType([PropTypes.string, PropTypes.number]).isRequired,
        null,
        requiredMessage
      );
      typeCheckFail(
        PropTypes.oneOfType([PropTypes.string, PropTypes.number]).isRequired,
        undefined,
        requiredMessage
      );
    });
  });

  describe('Shape Types', function() {
    it('should warn for non objects', function() {
      typeCheckFail(
        PropTypes.shape({}),
        'some string',
        'Invalid prop `testProp` of type `string` supplied to ' +
        '`testComponent`, expected `object`.'
      );
      typeCheckFail(
        PropTypes.shape({}),
        ['array'],
        'Invalid prop `testProp` of type `array` supplied to ' +
        '`testComponent`, expected `object`.'
      );
    });

    it('should not warn for empty values', function() {
      typeCheckPass(PropTypes.shape({}), undefined);
      typeCheckPass(PropTypes.shape({}), null);
      typeCheckPass(PropTypes.shape({}), {});
    });

    it('should not warn for an empty object', function() {
      typeCheckPass(PropTypes.shape({}).isRequired, {});
    });

    it('should not warn for non specified types', function() {
      typeCheckPass(PropTypes.shape({}), {key: 1});
    });

    it('should not warn for valid types', function() {
      typeCheckPass(PropTypes.shape({key: PropTypes.number}), {key: 1});
    });

    it('should warn for required valid types', function() {
      typeCheckFail(
        PropTypes.shape({key: PropTypes.number.isRequired}),
        {},
        'Required prop `testProp.key` was not specified in `testComponent`.'
      );
    });

    it('should warn for the first required type', function() {
      typeCheckFail(
        PropTypes.shape({
          key: PropTypes.number.isRequired,
          secondKey: PropTypes.number.isRequired,
        }),
        {},
        'Required prop `testProp.key` was not specified in `testComponent`.'
      );
    });

    it('should warn for invalid key types', function() {
      typeCheckFail(PropTypes.shape({key: PropTypes.number}),
        {key: 'abc'},
        'Invalid prop `testProp.key` of type `string` supplied to `testComponent`, ' +
        'expected `number`.'
      );
    });

    it('should be implicitly optional and not warn without values', function() {
      typeCheckPass(
        PropTypes.shape(PropTypes.shape({key: PropTypes.number})), null
      );
      typeCheckPass(
        PropTypes.shape(PropTypes.shape({key: PropTypes.number})), undefined
      );
    });

    it('should warn for missing required values', function() {
      typeCheckFail(
        PropTypes.shape({key: PropTypes.number}).isRequired,
        null,
        requiredMessage
      );
      typeCheckFail(
        PropTypes.shape({key: PropTypes.number}).isRequired,
        undefined,
        requiredMessage
      );
    });
  });

  describe('Custom validator', function() {
    beforeEach(function() {
      require('mock-modules').dumpCache();
      spyOn(console, 'error');
    });

    it('should have been called with the right params', function() {
      var spy = jasmine.createSpy();
      Component = React.createClass({
        propTypes: {num: spy},

        render: function() {
          return <div />;
        },
      });

      var instance = <Component num={5} />;
      instance = ReactTestUtils.renderIntoDocument(instance);

      expect(spy.argsForCall.length).toBe(2); // temp double validation
      expect(spy.argsForCall[0][1]).toBe('num');
      expect(spy.argsForCall[0][2]).toBe('Component');
    });

    it('should have been called even if the prop is not present', function() {
      var spy = jasmine.createSpy();
      Component = React.createClass({
        propTypes: {num: spy},

        render: function() {
          return <div />;
        },
      });

      var instance = <Component bla={5} />;
      instance = ReactTestUtils.renderIntoDocument(instance);

      expect(spy.argsForCall.length).toBe(2); // temp double validation
    });

    it('should have received the validator\'s return value', function() {
      var spy = jasmine.createSpy().andCallFake(
        function(props, propName, componentName) {
          if (props[propName] !== 5) {
            return new Error('num must be 5!');
          }
        }
      );
      Component = React.createClass({
        propTypes: {num: spy},

        render: function() {
          return <div />;
        },
      });

      var instance = <Component num={6} />;
      instance = ReactTestUtils.renderIntoDocument(instance);
      expect(console.error.argsForCall.length).toBe(1);
      expect(console.error.argsForCall[0][0]).toBe(
        'Warning: Failed propType: num must be 5!'
      );
    });

    it('should not warn if the validator returned null',
      function() {
        var spy = jasmine.createSpy().andCallFake(
          function(props, propName, componentName) {
            return null;
          }
        );
        Component = React.createClass({
          propTypes: {num: spy},

          render: function() {
            return <div />;
          },
        });

        var instance = <Component num={5} />;
        instance = ReactTestUtils.renderIntoDocument(instance);
        expect(console.error.argsForCall.length).toBe(0);
      }
    );
  });
});
