Updated Usage with Create React App - avoiding #71 #72
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Using jest-enzyme@3.0.0+ with Create React App is causing "TypeError: expect.addSnapshotSerializer is not a function" error. This is happening because jest-enzyme@3.0.0+ depends on jest@19.0.0 while Create React App is currently using jest@18.1.0. Added README warning - pending to be modified when Create React App updates their Jest dependency. See also #71.
| @@ -50,3 +50,9 @@ If you are using Create React App, instead of adding to your `package.json` as a | |||
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| This is documented on Create React App at the bottom of the [Testing Components](https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md#testing-components) section. There is also more information about [Initializing Test Environment](https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md#initializing-test-environment). | |||
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| Also, instead of installing the latest version you should stick with versions below 3, because Create React App currently [uses](https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/package.json#L50) a version of jest which will cause [this issue](https://github.com/blainekasten/enzyme-matchers/issues/71): | |||
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maybe instead of using verbage like currently uses you could say something like.
If you use a version of create-react-app less then X, it depends on a previous version of jest.. blah blah
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That is a good wording, but create react app currently uses 18.1.0. Until they upgrade to 19.0.0, we can't put a number on X.
So I guess the proposed wording is accurate right now, pending rewording when CRA is upgrading their dependency. I have subscribed to the relevant issue in the CRA repo, so I'll be able to know when to create a new PR.
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k. This is fine for now. I subscribed to that issue also. Thanks for doing this!
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Thanks for this! |
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Please send a PR to CRA in this cases too 😉 |
Using jest-enzyme@3.0.0+ with Create React App is causing "TypeError: expect.addSnapshotSerializer is not a function" error.
This is happening because jest-enzyme@3.0.0+ depends on jest@19.0.0 while Create React App is currently using jest@18.1.0.
Added README warning - pending to be modified when Create React App updates their Jest dependency.
See also #71.