diff --git a/modules/test/playwright/tests/client-extension-web/editorConfigContributor.spec.ts b/modules/test/playwright/tests/client-extension-web/editorConfigContributor.spec.ts
index cada9639e795f9..5e6082c12f3294 100644
--- a/modules/test/playwright/tests/client-extension-web/editorConfigContributor.spec.ts
+++ b/modules/test/playwright/tests/client-extension-web/editorConfigContributor.spec.ts
@@ -7,21 +7,30 @@ import {expect, mergeTests} from '@playwright/test';
 
 import {apiHelpersTest} from '../../fixtures/apiHelpersTest';
 import {featureFlagsTest} from '../../fixtures/featureFlagsTest';
+import {isolatedSiteTest} from '../../fixtures/isolatedSiteTest';
 import {loginTest} from '../../fixtures/loginTest';
+import {liferayConfig} from '../../liferay.config';
+import getRandomString from '../../utils/getRandomString';
+import getPageDefinition from '../layout-content-page-editor-web/utils/getPageDefinition';
+import getWidgetDefinition from '../layout-content-page-editor-web/utils/getWidgetDefinition';
 import {clientExtensionsPageTest} from './fixtures/clientExtensionsPageTest';
+import {editorSamplePageTest} from './fixtures/editorSamplePageTest';
 import {newEditorConfigContributorPageTest} from './fixtures/newEditorConfigContributorPageTest';
 
 export const test = mergeTests(
 	apiHelpersTest,
 	clientExtensionsPageTest,
+	editorSamplePageTest,
 	featureFlagsTest({
+		'LPS-178052': true,
 		'LPS-186870': true,
 	}),
+	isolatedSiteTest,
 	loginTest(),
 	newEditorConfigContributorPageTest
 );
 
-test('Create, edit and delete editor config contributor client extension', async ({
+test('Create, edit and delete editor config contributor client extension @LPS-186870', async ({
 	clientExtensionsPage,
 	newEditorConfigContributorPage,
 }) => {
@@ -78,7 +87,7 @@ test('Create, edit and delete editor config contributor client extension', async
 	await clientExtensionsPage.itemDeleteButton.click();
 });
 
-test('Add a toolbar button to a CKEditor, by applying editor config contributor client extension', async ({
+test('Add a toolbar button to a CKEditor, by applying editor config contributor client extension @LPS-186870', async ({
 	newEditorConfigContributorPage,
 }) => {
 	await newEditorConfigContributorPage.goto();
@@ -91,3 +100,48 @@ test('Add a toolbar button to a CKEditor, by applying editor config contributor
 		newEditorConfigContributorPage.aiCreatorEditorToolbarButton
 	).toBeVisible();
 });
+
+test('Add a toolbar button to an Alloy Editor @LPD-11056', async ({
+	apiHelpers,
+	editorSamplePage,
+	page,
+	site,
+}) => {
+	let layout: Layout;
+
+	await test.step('Create page with CKEditor sample widget', async () => {
+		const widgetDefinition = getWidgetDefinition({
+			id: getRandomString(),
+			widgetName:
+				'com_liferay_editor_ckeditor_sample_web_internal_portlet_CKEditorSamplePortlet',
+		});
+
+		layout = await apiHelpers.headlessDelivery.createSitePage(
+			site.id,
+			getRandomString(),
+			getPageDefinition([widgetDefinition])
+		);
+	});
+
+	await test.step('Navigate to the page with Alloy Editor sample', async () => {
+		await page.goto(
+			`${liferayConfig.environment.baseUrl}/web${site.friendlyUrlPath}${layout.friendlyUrlPath}`
+		);
+
+		await editorSamplePage.selectTab({tabLabel: 'Alloy'});
+
+		await editorSamplePage.alloyEditorContainer.isVisible();
+	});
+
+	await test.step('Check if client extenstion is applied', async () => {
+		await editorSamplePage.alloyEditorContainer
+			.getByText('Lorem ipsum')
+			.selectText();
+
+		const toolbarContainer = editorSamplePage.alloyEditorToolbarContainer;
+
+		await toolbarContainer.isVisible();
+
+		expect(toolbarContainer.getByTitle('Insert Video')).toBeVisible();
+	});
+});
diff --git a/modules/test/playwright/tests/client-extension-web/fixtures/editorSamplePageTest.ts b/modules/test/playwright/tests/client-extension-web/fixtures/editorSamplePageTest.ts
new file mode 100644
index 00000000000000..c6438f1397cc9b
--- /dev/null
+++ b/modules/test/playwright/tests/client-extension-web/fixtures/editorSamplePageTest.ts
@@ -0,0 +1,18 @@
+/**
+ * SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
+ * SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
+ */
+
+import {test} from '@playwright/test';
+
+import {EditorsSamplePage} from '../pages/EditorsSamplePage';
+
+const editorSamplePageTest = test.extend<{
+	editorSamplePage: EditorsSamplePage;
+}>({
+	editorSamplePage: async ({page}, use) => {
+		await use(new EditorsSamplePage(page));
+	},
+});
+
+export {editorSamplePageTest};
diff --git a/modules/test/playwright/tests/client-extension-web/pages/EditorsSamplePage.ts b/modules/test/playwright/tests/client-extension-web/pages/EditorsSamplePage.ts
new file mode 100644
index 00000000000000..5d0297eda39461
--- /dev/null
+++ b/modules/test/playwright/tests/client-extension-web/pages/EditorsSamplePage.ts
@@ -0,0 +1,28 @@
+/**
+ * SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
+ * SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
+ */
+
+import {Locator, Page} from '@playwright/test';
+
+export class EditorsSamplePage {
+	readonly alloyEditorContainer: Locator;
+	readonly alloyEditorToolbarContainer: Locator;
+	readonly page: Page;
+
+	constructor(page: Page) {
+		this.alloyEditorContainer = page.locator('.alloy-editor-container');
+		this.alloyEditorToolbarContainer = page.locator('.ae-toolbars');
+
+		this.page = page;
+	}
+
+	async selectTab({tabLabel}: {tabLabel: string}) {
+		const tab = this.page.getByRole('tab', {
+			exact: true,
+			name: tabLabel,
+		});
+
+		await tab.click();
+	}
+}