8/3/2023 0 Comments Runjs node![]() ![]() If you use the default react-scripts test command, CRA will not run the tests and give you a big red error that they don't support the "testEnvironment" setting. Changing the test command to jest and adding the configuration above triggers the issue. Fast Node Manager (fnm) is a command-line utility for managing several Node.js versions on a single system. I compared an empty repo with only jest installed with a CRA repo, which comes with jest. For node < 8.2, npx is not available, so doing npm install -g runjs-cli is neccessary which installs global run script. And voilà, it solved the problem.Īpparently setting the "testEnvironment" configuration to the same thing as its default changes Jest's running environment, which is very counterintuitive and confusing to me.Įdit: This is caused by Create React App. Hours later, in a ditch effort of desperation I decided to remove it. ![]() According to the docs, however, it's the default, so I didn't think anything of it. Open your terminal right inside VS Code by selecting View > Terminal (or select Ctrl+, using the backtick character). Simply remove "testEnvironment": "node" (inside "jest": ) and it was set to: "testEnvironment": "node". Does anyone have any idea what is going on?Īfter more digging I 'fixed' the issue. I've been at this for hours and it seems nobody on the internet has had this problem. Run console.log(process.env) at the start of the test and check what Node version is being used -> All references to Node had that same version: 16.13.0.Remove all other versions of Node installed except v16.13.0.Make Node v16.13.0 the default version using nvm.tasksfile 5.1.1 which has 6306 weekly downloads and 349 GitHub. It seems that when Jest runs it is not using the same environment compared to when I manually run my app with Node. Comparing trends for runjs 4.4.2 which has 19354 weekly downloads and 349 GitHub stars vs. ![]() This error did not occur with the polyfill. I am using TypeScript 4.4.4, in case that's relevant (this is not a TypeScript error). Node v16 comes with its own AbortController, so I removed the polyfill. I had been using a polyfill for a mock AbortController because I was using Node v12 before the upgrade. I upgraded all my packages to the newest versions during the upgrade to v16. Whereas running the code manually with Node worked fine. Run Js - For the developers want to ace Run Js is zero setup, beginner friendly, with Node Js development support. To launch the RunJS app, open the Applications folder and double-click the RunJS icon. Drag and drop the RunJS icon to the Applications folder in the window. ReferenceError: AbortController is not defined Open the browser's download list and locate the downloaded file. For example run a shell script, run a Node process, run some program using a different technology like go, python, etc. After an upgrade to Node v16.13.0 (the LTS version) from v12, I got the following error: ![]()
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