Function readFile

packages/generator-react-server/test/app.js:104–114

(filename, dir)

}

function readFile(filename, dir) {
	filename = path.join(dir, filename);
	return new Promise((resolve, reject) => {
		fs.readFile(filename, 'utf8', (err, data) => {
			if (err) {
				reject(err);
			}
			resolve(data);
		});
	});
}

function runsSuccessfully(command, dir) {
	return new Promise((resolve) => {