I'm having what should be a simple fix, but I can't find that simple fix. I installed jest-expo and I created a __test__
directory as directed. I ran npm test
from both my project root and the __test__
directory, and I get the following error:
internal/modules/cjs/loader.js:605
throw err;
^
Error: Cannot find module '/Users/REDACTED/Desktop/REDACTED/ShineMobileApps/node_modules/jest/bin/jest.js'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:603:15)
at Function.Module._load (internal/modules/cjs/loader.js:529:25)
at Function.Module.runMain (internal/modules/cjs/loader.js:774:12)
at executeUserCode (internal/bootstrap/node.js:499:15)
at startMainThreadExecution (internal/bootstrap/node.js:436:3)
npm ERR! Test failed. See above for more details.
There is no jest/
directory in my node_modules
directory. I have attached a picture of which jest modules I have:
Here is the code in my /__tests__/App-test.js
file:
import 'react-native';
import React from 'react';
import App from '../App';
import renderer from 'react-test-renderer';
import NavigationTestUtils from 'react-navigation/NavigationTestUtils';
describe('App snapshot', () => {
jest.useFakeTimers();
beforeEach(() => {
NavigationTestUtils.resetInternalState();
});
it('renders the loading screen', async () => {
const tree = renderer.create(<App />).toJSON();
expect(tree).toMatchSnapshot();
});
it('renders the root without loading screen', async () => {
const tree = renderer.create(<App skipLoadingScreen />).toJSON();
expect(tree).toMatchSnapshot();
});
});
So my question is:
Why is my jest not working when I run NPM test?
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