react-native/IntegrationTests/SyncMethodTest.js

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/**
* 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
* @providesModule SyncMethodTest
*/
'use strict';
var React = require('react');
var ReactNative = require('react-native');
var { View } = ReactNative;
const {
TestModule,
RNTesterTestModule,
} = ReactNative.NativeModules;
class SyncMethodTest extends React.Component<{}> {
componentDidMount() {
if (RNTesterTestModule.echoString('test string value') !== 'test string value') {
throw new Error('Something wrong with sync method export');
}
if (RNTesterTestModule.methodThatReturnsNil() != null) {
throw new Error('Something wrong with sync method export');
}
TestModule.markTestCompleted();
}
render(): React.Node {
return <View />;
}
}
SyncMethodTest.displayName = 'SyncMethodTest';
module.exports = SyncMethodTest;