text: /**
   * Copyright (c) 2015-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.
   *
   * @providesModule AppEventsTest
   * @flow
   */
  'use strict';
  
  var React = require('react-native');
  var {
    NativeAppEventEmitter,
    NativeModules,
    StyleSheet,
    Text,
    View,
  } = React;
  var TestModule = NativeModules.TestModule || NativeModules.SnapshotTestManager;
  
  var deepDiffer = require('deepDiffer');
  
  var TEST_PAYLOAD = {foo: 'bar'};
  
  var AppEventsTest = React.createClass({
    getInitialState: function() {
      return {sent: 'none', received: 'none'};
    },
    componentDidMount: function() {
      NativeAppEventEmitter.addListener('testEvent', this.receiveEvent);
      var event = {data: TEST_PAYLOAD, ts: Date.now()};
      TestModule.sendAppEvent('testEvent', event);
      this.setState({sent: event});
    },
    receiveEvent: function(event: any) {
      if (deepDiffer(event.data, TEST_PAYLOAD)) {
        throw new Error('Received wrong event: ' + JSON.stringify(event));
      }
      var elapsed = (Date.now() - event.ts) + 'ms';
      this.setState({received: event, elapsed}, TestModule.markTestCompleted);
    },
    render: function() {
      return (
        <View style={styles.container}>
          <Text>
            {JSON.stringify(this.state, null, '  ')}
          </Text>
        </View>
      );
    }
  });
  
  var styles = StyleSheet.create({
    container: {
      margin: 40,
    },
  });
  
  module.exports = AppEventsTest;
  