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#2575·enzyme

TypeError: window.require is not a function

Author: cwu-msCreated Dec 22, 2022Updated Jul 22, 2026
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Notoriously common issues

If you haven't found any duplicated issues, please report it with your environment!

Current behavior

When testing my project, I get this error with the mount() function: image

    TypeError: window.require is not a function

      57 |         };
      58 |
    > 59 |         const wrapper = mount(<HealthStatusAnchor healthStatus={health} resourceId={resourceId} isImpactedEnabled={isIREnabled}/> );
         |                         ^
      60 |
      61 |         wrapper.find('button').simulate('click');
      62 |         expect(openBladeSpy).toHaveBeenCalledTimes(1);

      at Object.getErrorBoundary (node_modules/azureportal-reactview/src/internal/ErrorBoundary.tsx:206:33)
      at _FrameworkIcon (node_modules/azureportal-reactview/src/FrameworkIcon.tsx:51:27)
      at renderWithHooks (node_modules/react-dom/cjs/react-dom.development.js:14803:18)
      at mountIndeterminateComponent (node_modules/react-dom/cjs/react-dom.development.js:17482:13)
      at beginWork (node_modules/react-dom/cjs/react-dom.development.js:18596:16)
      at HTMLUnknownElement.callCallback (node_modules/react-dom/cjs/react-dom.development.js:188:14)
      at HTMLUnknownElement.callTheUserObjectsOperation (node_modules/jsdom/lib/jsdom/living/generated/EventListener.js:26:30)
      at innerInvokeEventListeners (node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:338:25)
      at invokeEventListeners (node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:274:3)
      at HTMLUnknownElementImpl._dispatch (node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:221:9)
      at HTMLUnknownElementImpl.dispatchEvent (node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:94:17)
      at HTMLUnknownElement.dispatchEvent (node_modules/jsdom/lib/jsdom/living/generated/EventTarget.js:231:34)
      at Object.invokeGuardedCallbackDev (node_modules/react-dom/cjs/react-dom.development.js:237:16)
      at invokeGuardedCallback (node_modules/react-dom/cjs/react-dom.development.js:292:31)
      at beginWork$1 (node_modules/react-dom/cjs/react-dom.development.js:23203:7)
      at performUnitOfWork (node_modules/react-dom/cjs/react-dom.development.js:22157:12)
      at workLoopSync (node_modules/react-dom/cjs/react-dom.development.js:22130:22)
      at performSyncWorkOnRoot (node_modules/react-dom/cjs/react-dom.development.js:21756:9)
      at scheduleUpdateOnFiber (node_modules/react-dom/cjs/react-dom.development.js:21188:7)
      at updateContainer (node_modules/react-dom/cjs/react-dom.development.js:24373:3)
      at node_modules/react-dom/cjs/react-dom.development.js:24758:7
      at unbatchedUpdates (node_modules/react-dom/cjs/react-dom.development.js:21903:12)
      at legacyRenderSubtreeIntoContainer (node_modules/react-dom/cjs/react-dom.development.js:24757:5)
      at Object.render (node_modules/react-dom/cjs/react-dom.development.js:24840:10)
      at fn (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:488:26)
      at node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:405:37
      at batchedUpdates$1 (node_modules/react-dom/cjs/react-dom.development.js:21856:12)
      at Object.act (node_modules/react-dom/cjs/react-dom-test-utils.development.js:929:14)
      at wrapAct (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:405:13)
      at Object.render (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:474:16)
      at new ReactWrapper (node_modules/enzyme/src/ReactWrapper.js:115:16)
      at Object.mount (node_modules/enzyme/src/mount.js:10:10)
      at Object.<anonymous> (components/common/__tests__/HealthStatusAnchor.spec.tsx:59:25)

Expected behavior

This test was running before, but after running yarn install, some of our other dependencies were updated and now the mount() function is throwing errors. We're not sure why this might be happening, since the relation between these updates and the new error is not clear. Does anyone know why this is happening?

Your environment

API

  • shallow
  • mount
  • render

Version

library version
enzyme 3.11.0
react 16.14.0
react-dom 16.14.0
react-test-renderer 16.14.0
adapter (below)

Adapter

  • enzyme-adapter-react-16
  • enzyme-adapter-react-16.3
  • enzyme-adapter-react-16.2
  • enzyme-adapter-react-16.1
  • enzyme-adapter-react-15
  • enzyme-adapter-react-15.4
  • enzyme-adapter-react-14
  • enzyme-adapter-react-13
  • enzyme-adapter-react-helper
  • others ( )

Source: enzymejs/enzyme

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