I'm running the unit tests in a react-native app I'm developing and three of them are failing with this message:
TypeError: Cannot read property 'ReactCurrentOwner' of undefined
The error does not seem to be caused by my code, but either by react-test-renderer (in two tests) and in enzyme-adapter-react-16 (in one test).
This was an expo app and the unit tests were running. I then ejected. I replaced
"jest": {
"preset": "jest-expo"
},
with
"jest": {
"preset": "react-native"
},
and all my other tests are running. The three failing tests are the only ones that use react-test-renderer and enzyme-adapter-react-16.
I've tried (many times) removing node_modules and reinstalling. Here are the versions I'm using:
"devDependencies": {
"babel-preset-react-native-stage-0": "^1.0.1",
"deep-freeze": "^0.0.1",
"enzyme": "^3.1.1",
"enzyme-adapter-react-16": "^1.0.4",
"eslint": "^4.9.0",
"jest": "^21.2.1",
"react-dom": "^16.0.0",
"react-test-renderer": "^16.0.0"
},
"scripts": {
"start": "react-native start",
"android": "react-native run-android",
"ios": "react-native run-ios",
"test": "jest"
},
"jest": {
"preset": "react-native"
},
"dependencies": {
"assert": "^1.4.1",
"react": "16.0.0",
"react-native": "^0.50.1",
"react-redux": "^5.0.6",
"redux": "^3.7.2",
"yarn": "^1.3.2"
}*
For the benefit of others who have the same problem: it was fixed when I cleaned up my global node_modules and left react, react-native, and some other stuff only in the project's node_modules.