I know this has been asked countless times, but I am not able to fix the problem inspite of following all the SO solutions and suggestions.   I came to know about jest a few days ago and tried to have my hands on it. There is a good tutorial mentione...
I have spent a long time looking at other questions about this and looking at other projects on Github but none of the answers seem to work for me.  I am loading a third party library in my project, and when running Jest tests I get the error  export...
Is there any way in Jest to mock global objects, such as navigator, or Image*? I've pretty much given up on this, and left it up to a series of mockable utility methods. For example:  // Utils.js export isOnline() {     return navigator.onLine; }...
I have migrated my app to babel 7 beta and everything seems to work except the tests. I think I've read everything out there but I'm still getting this error:     ? Test suite failed to run  Requires Babel "^7.0.0-0", but was loaded w...
I'm still facing problems trying to use jest, typescript and es6 modules. My test are written in Typescript, I'm trying to import objects from js-file which uses es6 modules. To do that, I've followed jest documentation and have the follo...
Given my component and test below, why does my confirmClickHandler method still get called when I run my test?    Note: I noticed that when I change the method from a fat arrow function to just a regular function, it gets mocked out correctly.   What...
I'm getting error when trying to run test cases  code.i am using react native with jest . all was working fine before upgrade 0.40 . now is 0.42 all my test cases stop working and getting  error  following error.  ({"Object.<anonymous>&...
I found a similar problem here, but there doesn't seem to be an answer.  I'm trying to test an ES6 class using Jest, like so:  // src/myclass.js export default class MyClass {     constructor(options) {         // currently this is empty whil...
I'm trying to mock only one function in imported React module, keep the rest of the module unmocked and do this at top level for all tests.  I'm using fresh create-react-app project with a single test to observe the problem.  Steps to reprodu...
I am using jest to create snapshots of react-native components. I'm using babel 7. I can create snapshots but Snapshot is not created for TouchableOpacity component  I have already tried updating react-test-renderer to latest version but that doe...

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