import * as React from 'react' import {render} from '../' // these are created once per test suite and reused for each case let treeA, treeB beforeAll(() => { treeA = document.createElement('div') treeB = document.createElement('div') document.body.appendChild(treeA) document.body.appendChild(treeB) }) afterAll(() => { treeA.parentNode.removeChild(treeA) treeB.parentNode.removeChild(treeB) }) test('baseElement isolates trees from one another', () => { const {getByText: getByTextInA} = render(
Jekyll
, { baseElement: treeA, }) const {getByText: getByTextInB} = render(
Hyde
, { baseElement: treeB, }) expect(() => getByTextInA('Jekyll')).not.toThrow( 'Unable to find an element with the text: Jekyll.', ) expect(() => getByTextInB('Jekyll')).toThrow( 'Unable to find an element with the text: Jekyll.', ) expect(() => getByTextInA('Hyde')).toThrow( 'Unable to find an element with the text: Hyde.', ) expect(() => getByTextInB('Hyde')).not.toThrow( 'Unable to find an element with the text: Hyde.', ) }) // https://github.com/testing-library/eslint-plugin-testing-library/issues/188 /* eslint testing-library/prefer-screen-queries: "off", */