playwright/tests/library/inspector/pause.spec.ts

/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import type { Page } from 'playwright-core';
import { test as it, expect } from './inspectorTest';


it('should resume when closing inspector', async ({ page, recorderPageGetter, closeRecorder, mode }) => {
  it.skip(mode !== 'default');

  const scriptPromise = (async () => {
    await page.pause();
  })();
  await recorderPageGetter();
  await closeRecorder();
  await scriptPromise;
});

it.describe('pause', () => {
  it.skip(({ mode }) => mode !== 'default');

  it.afterEach(async ({ recorderPageGetter }) => {
    try {
      const recorderPage = await recorderPageGetter();
      recorderPage.click('[title=Resume]').catch(() => {});
    } catch (e) {
      // Some tests close context.
    }
  });

  it('should pause and resume the script', async ({ page, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.pause();
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should resume from console', async ({ page }) => {
    const scriptPromise = (async () => {
      await page.pause();
    })();
    await Promise.all([
      page.waitForFunction(() => (window as any).playwright && (window as any).playwright.resume).then(() => {
        return page.evaluate('window.playwright.resume()');
      })
    ]);
    await scriptPromise;
  });

  it('should pause after a navigation', async ({ page, server, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.goto(server.EMPTY_PAGE);
      await page.pause();
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should show source', async ({ page, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.pause();
    })();
    const recorderPage = await recorderPageGetter();
    const source = await recorderPage.textContent('.source-line-paused .source-code');
    expect(source).toContain('page.pause()');
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should pause on next pause', async ({ page, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.pause();  // 1
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    const source = await recorderPage.textContent('.source-line-paused');
    expect(source).toContain('page.pause();  // 1');
    await recorderPage.click('[title=Resume]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should step', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await page.click('button');
    })();
    const recorderPage = await recorderPageGetter();
    const source = await recorderPage.textContent('.source-line-paused');
    expect(source).toContain('page.pause();');

    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector('.source-line-paused :has-text("page.click")');

    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should highlight pointer', async ({ page, recorderPageGetter }) => {
    const actionPointPromise = waitForTestLog<{ x: number, y: number }>(page, 'Action point for test: ');
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await page.click('button');
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Step over"]');

    const { x, y } = await actionPointPromise;
    const button = await page.waitForSelector('button');
    const box1 = await button.boundingBox();

    const x1 = box1.x + box1.width / 2;
    const y1 = box1.y + box1.height / 2;

    expect(Math.abs(x1 - x) < 2).toBeTruthy();
    expect(Math.abs(y1 - y) < 2).toBeTruthy();

    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should skip input when resuming', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await page.click('button');
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should populate log', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await page.click('button');
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'page.click(button)- XXms',
      'page.pause',
    ]);
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should hide internal calls', async ({ page, recorderPageGetter, trace }) => {
    it.skip(trace === 'on');

    const scriptPromise = (async () => {
      await page.pause();
      await page.context().tracing.start();
      page.setDefaultTimeout(0);
      page.context().setDefaultNavigationTimeout(0);
      await page.context().tracing.stop();
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'tracing.start- XXms',
      'tracing.stop- XXms',
      'page.pause',
    ]);
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should show expect.toHaveText', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await expect(page.locator('button')).toHaveText('Submit');
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'expect.toHaveText(button)- XXms',
      'page.pause',
    ]);
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should highlight waitForEvent', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button onclick="console.log(1)">Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await Promise.all([
        page.waitForEvent('console', msg => msg.type() === 'log' && msg.text() === '1'),
        page.click('button'),
      ]);
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.click")');
    await recorderPage.waitForSelector('.source-line-running:has-text("page.waitForEvent")');
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should populate log with waitForEvent', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button onclick="console.log(1)">Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await Promise.all([
        page.waitForEvent('console'),
        page.click('button'),
      ]);
      await page.pause();  // 2
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause();  // 2")');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'page.waitForEvent(console)',
      'page.click(button)- XXms',
      'page.pause',
    ]);
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should populate log with error', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button onclick="console.log(1)">Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await page.isChecked('button');
    })().catch(e => e);
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Resume"]');
    await recorderPage.waitForSelector('.source-line-error');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'page.isChecked(button)- XXms',
      'waiting for selector "button"',
      'selector resolved to <button onclick=\"console.log(1)\">Submit</button>',
      'error: Error: Not a checkbox or radio button',
    ]);
    const error = await scriptPromise;
    expect(error.message).toContain('Not a checkbox or radio button');
  });

  it('should populate log with error in waitForEvent', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
      await Promise.all([
        page.waitForEvent('console', { timeout: 1 }).catch(() => {}),
        page.pause(),
      ]);
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.pause")');
    await recorderPage.waitForSelector('.source-line-error:has-text("page.waitForEvent")');
    expect(await sanitizeLog(recorderPage)).toEqual([
      'page.pause- XXms',
      'page.waitForEvent(console)',
      'waiting for event \"console\"',
      'error: Timeout 1ms exceeded while waiting for event \"console\"',
      'page.pause',
    ]);
    await recorderPage.click('[title="Resume"]');
    await scriptPromise;
  });

  it('should pause on page close', async ({ page, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.pause();
      await page.close();
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.close();")');
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should pause on context close', async ({ page, recorderPageGetter }) => {
    const scriptPromise = (async () => {
      await page.pause();
      await page.context().close();
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector('.source-line-paused:has-text("page.context().close();")');
    // Next line can throw because closing context also closes the inspector page.
    await recorderPage.click('[title=Resume]').catch(e => {});
    await scriptPromise;
  });

  it('should highlight on explore', async ({ page, recorderPageGetter }) => {
    await page.setContent('<button>Submit</button>');
    const scriptPromise = (async () => {
      await page.pause();
    })();
    const recorderPage = await recorderPageGetter();
    const [box1] = await Promise.all([
      waitForTestLog<Box>(page, 'Highlight box for test: '),
      recorderPage.fill('input[placeholder="Playwright Selector"]', 'text=Submit'),
    ]);
    const button = await page.$('text=Submit');
    const box2 = await button.boundingBox();
    expect(roundBox(box1)).toEqual(roundBox(box2));
    await recorderPage.click('[title=Resume]');
    await scriptPromise;
  });

  it('should not prevent key events', async ({ page, recorderPageGetter }) => {
    await page.setContent('<div>Hello</div>');
    await page.evaluate(() => {
      (window as any).log = [];
      for (const event of ['keydown', 'keyup', 'keypress'])
        window.addEventListener(event, e => (window as any).log.push(e.type));
    });
    const scriptPromise = (async () => {
      await page.pause();
      await page.keyboard.press('Enter');
      await page.keyboard.press('A');
      await page.keyboard.press('Shift+A');
    })();
    const recorderPage = await recorderPageGetter();
    await recorderPage.waitForSelector(`.source-line-paused:has-text("page.pause")`);
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector(`.source-line-paused:has-text("press('Enter')")`);
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector(`.source-line-paused:has-text("press('A')")`);
    await recorderPage.click('[title="Step over"]');
    await recorderPage.waitForSelector(`.source-line-paused:has-text("press('Shift+A')")`);
    await recorderPage.click('[title=Resume]');
    await scriptPromise;

    const log = await page.evaluate(() => (window as any).log);
    expect(log).toEqual([
      'keydown',
      'keypress',
      'keyup',
      'keydown',
      'keypress',
      'keyup',
      'keydown',
      'keydown',
      'keypress',
      'keyup',
      'keyup',
    ]);
  });
});

async function sanitizeLog(recorderPage: Page): Promise<string[]> {
  const results = [];
  for (const entry of await recorderPage.$$('.call-log-call')) {
    const header =  (await (await entry.$('.call-log-call-header')).textContent()).replace(/— [\d.]+(ms|s)/, '- XXms');
    results.push(header.replace(/page\.waitForEvent\(console\).*/, 'page.waitForEvent(console)'));
    results.push(...await entry.$$eval('.call-log-message', ee => ee.map(e => {
      return (e.classList.contains('error') ? 'error: ' : '') + e.textContent;
    })));
  }
  return results;
}

function waitForTestLog<T>(page: Page, prefix: string): Promise<T> {
  return new Promise<T>(resolve => {
    page.on('console', message => {
      const text = message.text();
      if (text.startsWith(prefix)) {
        const json = text.substring(prefix.length);
        resolve(JSON.parse(json));
      }
    });
  });
}

type Box = { x: number, y: number, width: number, height: number };
function roundBox(box: Box): Box {
  return {
    x: Math.round(box.x * 1000),
    y: Math.round(box.y * 1000),
    width: Math.round(box.width * 1000),
    height: Math.round(box.height * 1000),
  };
}