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ReactDOMFizzServerBrowser-test.js
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ReactDOMFizzServerBrowser-test.js
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @emails react-core
*/
'use strict';
// Polyfills for test environment
global.ReadableStream = require('@mattiasbuelens/web-streams-polyfill/ponyfill/es6').ReadableStream;
global.TextEncoder = require('util').TextEncoder;
let React;
let ReactDOMFizzServer;
describe('ReactDOMFizzServer', () => {
beforeEach(() => {
jest.resetModules();
React = require('react');
ReactDOMFizzServer = require('react-dom/unstable-fizz.browser');
});
async function readResult(stream) {
let reader = stream.getReader();
let result = '';
while (true) {
let {done, value} = await reader.read();
if (done) {
return result;
}
result += Buffer.from(value).toString('utf8');
}
}
it('should call renderToReadableStream', async () => {
let stream = ReactDOMFizzServer.renderToReadableStream(
<div>hello world</div>,
);
let result = await readResult(stream);
expect(result).toBe('<div>hello world</div>');
});
});