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

// test.beforeEach(async ({ page }) => {
//   await page.goto('https://demo.playwright.dev/todomvc');
// });

// const TODO_ITEMS = [
//   'buy some cheese',
//   'feed the cat',
//   'book a doctors appointment'
// ];

// test.describe('New Todo', () => {
//   test('should allow me to add todo items', async ({ page }) => {
//     // Create 1st todo.
//     await page.locator('.new-todo').fill(TODO_ITEMS[0]);
//     await page.locator('.new-todo').press('Enter');

//     // Make sure the list only has one todo item.
//     await expect(page.locator('.view label')).toHaveText([
//       TODO_ITEMS[0]
//     ]);

//     // Create 2nd todo.
//     await page.locator('.new-todo').fill(TODO_ITEMS[1]);
//     await page.locator('.new-todo').press('Enter');

//     // Make sure the list now has two todo items.
//     await expect(page.locator('.view label')).toHaveText([
//       TODO_ITEMS[0],
//       TODO_ITEMS[1]
//     ]);

//     await checkNumberOfTodosInLocalStorage(page, 2);
//   });

//   test('should clear text input field when an item is added', async ({ page }) => {
//     // Create one todo item.
//     await page.locator('.new-todo').fill(TODO_ITEMS[0]);
//     await page.locator('.new-todo').press('Enter');

//     // Check that input is empty.
//     await expect(page.locator('.new-todo')).toBeEmpty();
//     await checkNumberOfTodosInLocalStorage(page, 1);
//   });

//   test('should append new items to the bottom of the list', async ({ page }) => {
//     // Create 3 items.
//     await createDefaultTodos(page);

//     // Check test using different methods.
//     await expect(page.locator('.todo-count')).toHaveText('3 items left');
//     await expect(page.locator('.todo-count')).toContainText('3');
//     await expect(page.locator('.todo-count')).toHaveText(/3/);

//     // Check all items in one call.
//     await expect(page.locator('.view label')).toHaveText(TODO_ITEMS);
//     await checkNumberOfTodosInLocalStorage(page, 3);
//   });

//   test('should show #main and #footer when items added', async ({ page }) => {
//     await page.locator('.new-todo').fill(TODO_ITEMS[0]);
//     await page.locator('.new-todo').press('Enter');

//     await expect(page.locator('.main')).toBeVisible();
//     await expect(page.locator('.footer')).toBeVisible();
//     await checkNumberOfTodosInLocalStorage(page, 1);
//   });
// });

// test.describe('Mark all as completed', () => {
//   test.beforeEach(async ({ page }) => {
//     await createDefaultTodos(page);
//     await checkNumberOfTodosInLocalStorage(page, 3);
//   });

//   test.afterEach(async ({ page }) => {
//     await checkNumberOfTodosInLocalStorage(page, 3);
//   });

//   test('should allow me to mark all items as completed', async ({ page }) => {
//     // Complete all todos.
//     await page.locator('.toggle-all').check();

//     // Ensure all todos have 'completed' class.
//     await expect(page.locator('.todo-list li')).toHaveClass(['completed', 'completed', 'completed']);
//     await checkNumberOfCompletedTodosInLocalStorage(page, 3);
//   });

//   test('should allow me to clear the complete state of all items', async ({ page }) => {
//     // Check and then immediately uncheck.
//     await page.locator('.toggle-all').check();
//     await page.locator('.toggle-all').uncheck();

//     // Should be no completed classes.
//     await expect(page.locator('.todo-list li')).toHaveClass(['', '', '']);
//   });

//   test('complete all checkbox should update state when items are completed / cleared', async ({ page }) => {
//     const toggleAll = page.locator('.toggle-all');
//     await toggleAll.check();
//     await expect(toggleAll).toBeChecked();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 3);

//     // Uncheck first todo.
//     const firstTodo = page.locator('.todo-list li').nth(0);
//     await firstTodo.locator('.toggle').uncheck();

//     // Reuse toggleAll locator and make sure its not checked.
//     await expect(toggleAll).not.toBeChecked();

//     await firstTodo.locator('.toggle').check();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 3);

//     // Assert the toggle all is checked again.
//     await expect(toggleAll).toBeChecked();
//   });
// });

// test.describe('Item', () => {

//   test('should allow me to mark items as complete', async ({ page }) => {
//     // Create two items.
//     for (const item of TODO_ITEMS.slice(0, 2)) {
//       await page.locator('.new-todo').fill(item);
//       await page.locator('.new-todo').press('Enter');
//     }

//     // Check first item.
//     const firstTodo = page.locator('.todo-list li').nth(0);
//     await firstTodo.locator('.toggle').check();
//     await expect(firstTodo).toHaveClass('completed');

//     // Check second item.
//     const secondTodo = page.locator('.todo-list li').nth(1);
//     await expect(secondTodo).not.toHaveClass('completed');
//     await secondTodo.locator('.toggle').check();

//     // Assert completed class.
//     await expect(firstTodo).toHaveClass('completed');
//     await expect(secondTodo).toHaveClass('completed');
//   });

//   test('should allow me to un-mark items as complete', async ({ page }) => {
//     // Create two items.
//     for (const item of TODO_ITEMS.slice(0, 2)) {
//       await page.locator('.new-todo').fill(item);
//       await page.locator('.new-todo').press('Enter');
//     }

//     const firstTodo = page.locator('.todo-list li').nth(0);
//     const secondTodo = page.locator('.todo-list li').nth(1);
//     await firstTodo.locator('.toggle').check();
//     await expect(firstTodo).toHaveClass('completed');
//     await expect(secondTodo).not.toHaveClass('completed');
//     await checkNumberOfCompletedTodosInLocalStorage(page, 1);

//     await firstTodo.locator('.toggle').uncheck();
//     await expect(firstTodo).not.toHaveClass('completed');
//     await expect(secondTodo).not.toHaveClass('completed');
//     await checkNumberOfCompletedTodosInLocalStorage(page, 0);
//   });

//   test('should allow me to edit an item', async ({ page }) => {
//     await createDefaultTodos(page);

//     const todoItems = page.locator('.todo-list li');
//     const secondTodo = todoItems.nth(1);
//     await secondTodo.dblclick();
//     await expect(secondTodo.locator('.edit')).toHaveValue(TODO_ITEMS[1]);
//     await secondTodo.locator('.edit').fill('buy some sausages');
//     await secondTodo.locator('.edit').press('Enter');

//     // Explicitly assert the new text value.
//     await expect(todoItems).toHaveText([
//       TODO_ITEMS[0],
//       'buy some sausages',
//       TODO_ITEMS[2]
//     ]);
//     await checkTodosInLocalStorage(page, 'buy some sausages');
//   });
// });

// test.describe('Editing', () => {
//   test.beforeEach(async ({ page }) => {
//     await createDefaultTodos(page);
//     await checkNumberOfTodosInLocalStorage(page, 3);
//   });

//   test('should hide other controls when editing', async ({ page }) => {
//     const todoItem = page.locator('.todo-list li').nth(1);
//     await todoItem.dblclick();
//     await expect(todoItem.locator('.toggle')).not.toBeVisible();
//     await expect(todoItem.locator('label')).not.toBeVisible();
//     await checkNumberOfTodosInLocalStorage(page, 3);
//   });

//   test('should save edits on blur', async ({ page }) => {
//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(1).dblclick();
//     await todoItems.nth(1).locator('.edit').fill('buy some sausages');
//     await todoItems.nth(1).locator('.edit').dispatchEvent('blur');

//     await expect(todoItems).toHaveText([
//       TODO_ITEMS[0],
//       'buy some sausages',
//       TODO_ITEMS[2],
//     ]);
//     await checkTodosInLocalStorage(page, 'buy some sausages');
//   });

//   test('should trim entered text', async ({ page }) => {
//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(1).dblclick();
//     await todoItems.nth(1).locator('.edit').fill('    buy some sausages    ');
//     await todoItems.nth(1).locator('.edit').press('Enter');

//     await expect(todoItems).toHaveText([
//       TODO_ITEMS[0],
//       'buy some sausages',
//       TODO_ITEMS[2],
//     ]);
//     await checkTodosInLocalStorage(page, 'buy some sausages');
//   });

//   test('should remove the item if an empty text string was entered', async ({ page }) => {
//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(1).dblclick();
//     await todoItems.nth(1).locator('.edit').fill('');
//     await todoItems.nth(1).locator('.edit').press('Enter');

//     await expect(todoItems).toHaveText([
//       TODO_ITEMS[0],
//       TODO_ITEMS[2],
//     ]);
//   });

//   test('should cancel edits on escape', async ({ page }) => {
//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(1).dblclick();
//     await todoItems.nth(1).locator('.edit').press('Escape');
//     await expect(todoItems).toHaveText(TODO_ITEMS);
//   });
// });

// test.describe('Counter', () => {
//   test('should display the current number of todo items', async ({ page }) => {
//     await page.locator('.new-todo').fill(TODO_ITEMS[0]);
//     await page.locator('.new-todo').press('Enter');
//     await expect(page.locator('.todo-count')).toContainText('1');

//     await page.locator('.new-todo').fill(TODO_ITEMS[1]);
//     await page.locator('.new-todo').press('Enter');
//     await expect(page.locator('.todo-count')).toContainText('2');

//     await checkNumberOfTodosInLocalStorage(page, 2);
//   });
// });

// test.describe('Clear completed button', () => {
//   test.beforeEach(async ({ page }) => {
//     await createDefaultTodos(page);
//   });

//   test('should display the correct text', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').first().check();
//     await expect(page.locator('.clear-completed')).toHaveText('Clear completed');
//   });

//   test('should remove completed items when clicked', async ({ page }) => {
//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(1).locator('.toggle').check();
//     await page.locator('.clear-completed').click();
//     await expect(todoItems).toHaveCount(2);
//     await expect(todoItems).toHaveText([TODO_ITEMS[0], TODO_ITEMS[2]]);
//   });

//   test('should be hidden when there are no items that are completed', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').first().check();
//     await page.locator('.clear-completed').click();
//     await expect(page.locator('.clear-completed')).toBeHidden();
//   });
// });

// test.describe('Persistence', () => {
//   test('should persist its data', async ({ page }) => {
//     for (const item of TODO_ITEMS.slice(0, 2)) {
//       await page.locator('.new-todo').fill(item);
//       await page.locator('.new-todo').press('Enter');
//     }

//     const todoItems = page.locator('.todo-list li');
//     await todoItems.nth(0).locator('.toggle').check();
//     await expect(todoItems).toHaveText([TODO_ITEMS[0], TODO_ITEMS[1]]);
//     await expect(todoItems).toHaveClass(['completed', '']);

//     // Ensure there is 1 completed item.
//     checkNumberOfCompletedTodosInLocalStorage(page, 1);

//     // Now reload.
//     await page.reload();
//     await expect(todoItems).toHaveText([TODO_ITEMS[0], TODO_ITEMS[1]]);
//     await expect(todoItems).toHaveClass(['completed', '']);
//   });
// });

// test.describe('Routing', () => {
//   test.beforeEach(async ({ page }) => {
//     await createDefaultTodos(page);
//     // make sure the app had a chance to save updated todos in storage
//     // before navigating to a new view, otherwise the items can get lost :(
//     // in some frameworks like Durandal
//     await checkTodosInLocalStorage(page, TODO_ITEMS[0]);
//   });

//   test('should allow me to display active items', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').nth(1).check();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 1);
//     await page.locator('.filters >> text=Active').click();
//     await expect(page.locator('.todo-list li')).toHaveCount(2);
//     await expect(page.locator('.todo-list li')).toHaveText([TODO_ITEMS[0], TODO_ITEMS[2]]);
//   });

//   test('should respect the back button', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').nth(1).check();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 1);

//     await test.step('Showing all items', async () => {
//       await page.locator('.filters >> text=All').click();
//       await expect(page.locator('.todo-list li')).toHaveCount(3);
//     });

//     await test.step('Showing active items', async () => {
//       await page.locator('.filters >> text=Active').click();
//     });

//     await test.step('Showing completed items', async () => {
//       await page.locator('.filters >> text=Completed').click();
//     });

//     await expect(page.locator('.todo-list li')).toHaveCount(1);
//     await page.goBack();
//     await expect(page.locator('.todo-list li')).toHaveCount(2);
//     await page.goBack();
//     await expect(page.locator('.todo-list li')).toHaveCount(3);
//   });

//   test('should allow me to display completed items', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').nth(1).check();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 1);
//     await page.locator('.filters >> text=Completed').click();
//     await expect(page.locator('.todo-list li')).toHaveCount(1);
//   });

//   test('should allow me to display all items', async ({ page }) => {
//     await page.locator('.todo-list li .toggle').nth(1).check();
//     await checkNumberOfCompletedTodosInLocalStorage(page, 1);
//     await page.locator('.filters >> text=Active').click();
//     await page.locator('.filters >> text=Completed').click();
//     await page.locator('.filters >> text=All').click();
//     await expect(page.locator('.todo-list li')).toHaveCount(3);
//   });

//   test('should highlight the currently applied filter', async ({ page }) => {
//     await expect(page.locator('.filters >> text=All')).toHaveClass('selected');
//     await page.locator('.filters >> text=Active').click();
//     // Page change - active items.
//     await expect(page.locator('.filters >> text=Active')).toHaveClass('selected');
//     await page.locator('.filters >> text=Completed').click();
//     // Page change - completed items.
//     await expect(page.locator('.filters >> text=Completed')).toHaveClass('selected');
//   });
// });

// async function createDefaultTodos(page: Page) {
//   for (const item of TODO_ITEMS) {
//     await page.locator('.new-todo').fill(item);
//     await page.locator('.new-todo').press('Enter');
//   }
// }

// async function checkNumberOfTodosInLocalStorage(page: Page, expected: number) {
//   return await page.waitForFunction(e => {
//     return JSON.parse(localStorage['react-todos']).length === e;
//   }, expected);
// }

// async function checkNumberOfCompletedTodosInLocalStorage(page: Page, expected: number) {
//   return await page.waitForFunction(e => {
//     return JSON.parse(localStorage['react-todos']).filter(i => i.completed).length === e;
//   }, expected);
// }

// async function checkTodosInLocalStorage(page: Page, title: string) {
//   return await page.waitForFunction(t => {
//     return JSON.parse(localStorage['react-todos']).map(i => i.title).includes(t);
//   }, title);
// }