react-native/IntegrationTests/PromiseTest.js

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/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const React = require('react');
const ReactNative = require('react-native');
const {View} = ReactNative;
const {TestModule} = ReactNative.NativeModules;
class PromiseTest extends React.Component<{}> {
shouldResolve = false;
shouldReject = false;
shouldSucceedAsync = false;
shouldThrowAsync = false;
componentDidMount() {
Promise.all([
this.testShouldResolve(),
this.testShouldReject(),
this.testShouldSucceedAsync(),
this.testShouldThrowAsync(),
]).then(() =>
TestModule.markTestPassed(
this.shouldResolve &&
this.shouldReject &&
this.shouldSucceedAsync &&
this.shouldThrowAsync,
),
);
}
testShouldResolve = () => {
return TestModule.shouldResolve()
.then(() => (this.shouldResolve = true))
.catch(() => (this.shouldResolve = false));
};
testShouldReject = () => {
return TestModule.shouldReject()
.then(() => (this.shouldReject = false))
.catch(() => (this.shouldReject = true));
};
testShouldSucceedAsync = async (): Promise<any> => {
try {
await TestModule.shouldResolve();
this.shouldSucceedAsync = true;
} catch (e) {
this.shouldSucceedAsync = false;
}
};
testShouldThrowAsync = async (): Promise<any> => {
try {
await TestModule.shouldReject();
this.shouldThrowAsync = false;
} catch (e) {
this.shouldThrowAsync = true;
}
};
render(): React.Node {
return <View />;
}
}
PromiseTest.displayName = 'PromiseTest';
module.exports = PromiseTest;