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jest-setup.js
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jest-setup.js
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import 'react-native'
import 'jest-enzyme'
import Adapter from 'enzyme-adapter-react-16'
import Enzyme from 'enzyme'
/**
* Set up DOM in node.js environment for Enzyme to mount to
*/
const { JSDOM } = require('jsdom')
const jsdom = new JSDOM('<!doctype html><html><body></body></html>')
const { window } = jsdom
function copyProps(src, target) {
Object.defineProperties(target, {
...Object.getOwnPropertyDescriptors(src),
...Object.getOwnPropertyDescriptors(target),
})
}
global.window = window
global.document = window.document
global.navigator = {
userAgent: 'node.js',
}
copyProps(window, global)
/**
* Set up Enzyme to mount to DOM, simulate events,
* and inspect the DOM in tests.
*/
Enzyme.configure({ adapter: new Adapter() })
/**
* Ignore some expected warnings
* see: https://jestjs.io/docs/en/tutorial-react.html#snapshot-testing-with-mocks-enzyme-and-react-16
* see https://github.com/Root-App/react-native-mock-render/issues/6
*/
const originalConsoleError = console.error
console.error = message => {
if (message.startsWith('Warning:')) {
return
}
originalConsoleError(message)
}
jest.mock('react-native-languages', () => ({
RNLanguages: {
language: 'en',
languages: ['en'],
},
}))