Function testStack

packages/angular/test/base/e2e/utils/test-utils.ts:3–19

(page: Page, selector: string, expectedStack: string[])

import { expect, type Page, type Locator } from '@playwright/test';

export async function testStack(page: Page, selector: string, expectedStack: string[]) {
  const elements = page.locator(`${selector} > *`);
  const count = await elements.count();

  // Get the actual stack (tag names of child elements), filtering out non-components
  const actualStack: string[] = [];
  for (let i = 0; i < count; i++) {
    const tagName = await elements.nth(i).evaluate(el => el.tagName.toLowerCase());
    // Filter out non-component elements like 'slot', 'div', etc.
    if (tagName.includes('-') || tagName.startsWith('app-') || tagName.startsWith('ion-')) {
      actualStack.push(tagName);
    }
  }

  // Compare the actual stack with the expected stack
  expect(actualStack).toEqual(expectedStack);
}

export async function testLifeCycle(page: Page, selector: string, expectedCounts: Record<string, number>) {
  await expect(page.locator(`${selector} #ngOnInit`)).toHaveText('1');