extend-expect expect is not defined

[dmvjs]

I get the following error (running playwright, using this dependency) and I don't see expect imported in the src file. Is it expected to be ok as-is or is there a known workaround?

I'm adding the new playwright "component tests" to a repo that already has playwright testing that works fine. It appears to happen as a result of calling the mount method used for component testing.

I see that elsewhere in the code (in tests) describe(), expect(), test() are assumed to be available without being imported.

ReferenceError: expect is not defined

   at node_modules/@testing-library/jest-dom/dist/extend-expect.js:9

  7 | function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
  8 |
> 9 | expect.extend(extensions);
    | ^

    at Object.<anonymous> (/Users/kelliott/Code/athena/src/client-v3/node_modules/@testing-library/jest-dom/dist/extend-expect.js:9:1)
    at Object.<anonymous> (/Users/kelliott/Code/athena/src/client-v3/node_modules/@testing-library/jest-dom/extend-expect.js:2:1)```

[gnietto]

Well, in 2025 expect-extend does not exist in jest-dom AFAIK.