Uncomment few test cases.

playwright/e2e/custom-template.spec.ts

@@ -1,7 +1,7 @@
 import { Page } from '@playwright/test';
 import { expect, test } from '../support/test-helpers';
 
-/*test.describe('summary row', () => {
+test.describe('summary row', () => {
   test.describe('simple summary row', () => {
     const example = 'simple-summary';
 
@@ -201,4 +201,3 @@ const testSummaryRowData = async (page: Page) => {
   await expect(genderColumn).toContainText(`females: ${femaleCells.length}`);
   await expect(genderColumn).toContainText(`males: ${maleCells.length}`);
 };
-*/

playwright/e2e/drag-drop.spec.ts

@@ -1,6 +1,6 @@
 import { expect, test } from '../support/test-helpers';
 
-/*test.describe('drag drop using angular cdk', () => {
+test.describe('drag drop using angular cdk', () => {
   const example = 'drag-drop';
   test(example, async ({ si, page }) => {
     await si.visitExample(example);
@@ -56,4 +56,4 @@ import { expect, test } from '../support/test-helpers';
     await si.runVisualAndA11yTests('switch-rows');
   });
 });
-*/
+

playwright/e2e/selection.spec.ts

@@ -1,6 +1,6 @@
 import { expect, test } from '../support/test-helpers';
 
-/*test.describe('selection', () => {
+test.describe('selection', () => {
   test.describe('cell selection', () => {
     const example = 'cell-selection';
 
@@ -314,4 +314,3 @@ import { expect, test } from '../support/test-helpers';
     });
   });
 });
-*/