react-native/IntegrationTests/IntegrationTestHarnessTest.js

/**
 * 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.
 *
 * @flow
 */
'use strict';

var requestAnimationFrame = require('fbjs/lib/requestAnimationFrame');
var React = require('react-native');
var {
  Text,
  View,
} = React;
var { TestModule } = React.NativeModules;

var IntegrationTestHarnessTest = React.createClass({
  propTypes: {
    shouldThrow: React.PropTypes.bool,
    waitOneFrame: React.PropTypes.bool,
  },

  getInitialState() {
    return {
      done: false,
    };
  },

  componentDidMount() {
    if (this.props.waitOneFrame) {
      requestAnimationFrame(this.runTest);
    } else {
      this.runTest();
    }
  },

  runTest() {
    if (this.props.shouldThrow) {
      throw new Error('Throwing error because shouldThrow');
    }
    if (!TestModule) {
      throw new Error('RCTTestModule is not registered.');
    } else if (!TestModule.markTestCompleted) {
      throw new Error('RCTTestModule.markTestCompleted not defined.');
    }
    this.setState({done: true}, TestModule.markTestCompleted);
  },

  render() {
    return (
      <View style={{backgroundColor: 'white', padding: 40}}>
        <Text>
          {this.constructor.displayName + ': '}
          {this.state.done ? 'Done' : 'Testing...'}
        </Text>
      </View>
    );
  }
});

IntegrationTestHarnessTest.displayName = 'IntegrationTestHarnessTest';

module.exports = IntegrationTestHarnessTest;