File size: 2,277 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /**
* @jest-environment jsdom
*/
import ReactDOM from 'react-dom';
import { act } from 'react-dom/test-utils';
import i18n, { useTranslate } from '..';
function Label() {
const translate = useTranslate();
return translate( 'hook (%(lang)s)', { args: { lang: translate.localeSlug } } );
}
describe( 'useTranslate()', () => {
let container;
beforeEach( () => {
// reset to default locale
act( () => {
i18n.setLocale();
} );
// create container
container = document.createElement( 'div' );
document.body.appendChild( container );
} );
afterEach( () => {
// tear down the container
ReactDOM.unmountComponentAtNode( container );
document.body.removeChild( container );
container = null;
} );
test( 'renders a translated string', () => {
// set some locale data
i18n.setLocale( {
'': { localeSlug: 'cs' },
'hook (%(lang)s)': [ 'háček (%(lang)s)' ],
} );
// render the Label component
act( () => {
ReactDOM.render( <Label />, container );
} );
// check that it's translated
expect( container.textContent ).toBe( 'háček (cs)' );
} );
test( 'rerenders after locale change', () => {
// render with the default locale
act( () => {
ReactDOM.render( <Label />, container );
} );
expect( container.textContent ).toBe( 'hook (en)' );
// change locale and ensure that React UI is rerendered
act( () => {
i18n.setLocale( {
'': { localeSlug: 'cs' },
'hook (%(lang)s)': [ 'háček (%(lang)s)' ],
} );
} );
expect( container.textContent ).toBe( 'háček (cs)' );
} );
test( 'rerenders after update of current locale translations', () => {
// set some locale data
act( () => {
i18n.setLocale( {
'': { localeSlug: 'cs' },
'hook (%(lang)s)': [ 'háček (%(lang)s)' ],
} );
} );
// render the Label component
act( () => {
ReactDOM.render( <Label />, container );
} );
// check that it's translated
expect( container.textContent ).toBe( 'háček (cs)' );
// update the translations for the current locale
act( () => {
i18n.setLocale( {
'': { localeSlug: 'cs' },
'hook (%(lang)s)': [ 'hák (%(lang)s)' ],
} );
} );
// check that the rendered translation is updated
expect( container.textContent ).toBe( 'hák (cs)' );
} );
} );
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