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setupTests.ts
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import 'react-native';
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);
};