Mock dateI18n function to ensure snapshot date is always in GMT

Author: ravichdev

plugin/tests/js/settings/components/integrations/__snapshots__/updater.test.js.snap

@@ -22,7 +22,7 @@ exports[`Settings: Updater matches snapshot 1`] = `
           <p
             class="mdc-typography--body1"
           >
-            Last update on Apr 13, 2021, 08:28 PM
+            Last update on Tue, 13 Apr 2021 14:58:26 GMT
           </p>
         </div>
         <div
@@ -255,7 +255,7 @@ exports[`Settings: Updater matches snapshot when should not update 1`] = `
           <p
             class="mdc-typography--body1"
           >
-            Last update on Apr 13, 2021, 08:28 PM
+            Last update on Tue, 13 Apr 2021 14:58:26 GMT
           </p>
         </div>
         <div

plugin/tests/js/settings/components/integrations/updater.test.js

@@ -26,6 +26,15 @@ import { render } from '@testing-library/react';
 import Updater from '../../../../../assets/src/settings/components/integrations/updater';
 import { SettingsProvider } from '../../../../../assets/src/settings/context';
 
+// Mock the @wordpress/date component.
+jest.mock( '@wordpress/date', () => {
+	const original = jest.requireActual( '@wordpress/date' );
+	return {
+		...original,
+		dateI18n: ( format, value ) => new Date( value ).toGMTString(),
+	};
+} );
+
 const baseProps = {
 	title: 'Google Fonts',
 	type: 'FONTS',