title: How to run a specific test with Create React App
body: <p>In an app create with CRA v.1 I need to run a specific test file. How do I go about it? There is the <code>--testPathIgnorePatterns</code> flag to add to the <code>npm test</code> script to ignore a file or path but how do I run a particular test file with CRA from the command line?</p>