IjzerenHein / IjzerenHein/react-navigation-shared-element
[Jest] Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function
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Description
I'm getting this error when I run tests
`
Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.
`
I'm using jest and RNTL. The line of the problem is when declare the SharedElement component:
``````
Here my depedencies and devDependencies
```
"@apollo/client": "^3.3.18",
"react": "17.0.1",
"react-native": "0.64.1",
"react-native-shared-element": "^0.7.0",
"react-navigation-shared-element": "^5.0.0-alpha1",
},
"devDependencies": {
"@testing-library/react-hooks": "^7.0.0",
"@testing-library/react-native": "^7.2.0",
"babel-jest": "^26.6.3",
"jest": "^26.6.3",
"react-test-renderer": "17.0.1"
}
```
Contributor guide
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Research direction
Start by reproducing the Jest and React Native Testing Library warning with the SharedElement usage shown in the issue and the listed dependency versions. The issue does not name a project file or test, so first identify the relevant import and test entry point; done would mean determining why SharedElement is undefined and documenting or fixing the project-specific cause.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react-native
- Domain
- testing
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100