The latest articles on DEV Community by Amritesh (@ammrit2312). https://dev.to/ammrit2312 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F529792%2Faee5d144-4cdf-472e-8300-229c94d7575e.jpeg https://dev.to/ammrit2312 en Amritesh Thu, 13 Apr 2023 13:17:08 +0000 https://dev.to/ammrit2312/facing-issue-with-jest-working-with-node18-for-react-133l https://dev.to/ammrit2312/facing-issue-with-jest-working-with-node18-for-react-133l <p>I am upgrading my code from node14 to node18 written for a react app. <br> I tried mocking an api call and tried to mount it with Provider but the error comes that api call is undefined this results in error from my file. <br> I get error like<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>getData)(argument).then(res =&gt; { ^ TypeError: Cannot read properties of undefined (reading 'then') </code></pre> </div> <p>Also after upgrading, jest is not able to find other test files.</p> react