diff --git a/packages/react-scripts/scripts/test.js b/packages/react-scripts/scripts/test.js index 9de5181d739..13857917e6a 100644 --- a/packages/react-scripts/scripts/test.js +++ b/packages/react-scripts/scripts/test.js @@ -26,6 +26,18 @@ if (!process.env.CI && argv.indexOf('--coverage') < 0) { argv.push('--watch'); } +// A temporary hack to clear terminal correctly. +// You can remove this after updating to Jest 18 when it's out. +// https://github.com/facebook/jest/pull/2230 +var realWrite = process.stdout.write; +var CLEAR = process.platform === 'win32' ? '\x1Bc' : '\x1B[2J\x1B[3J\x1B[H'; +process.stdout.write = function(chunk, encoding, callback) { + if (chunk === '\x1B[2J\x1B[H') { + chunk = CLEAR; + } + return realWrite.call(this, chunk, encoding, callback); +}; + // @remove-on-eject-begin // This is not necessary after eject because we embed config into package.json. const createJestConfig = require('../utils/createJestConfig');