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browser testing: enable (or make it easier) to copy/paste text #6746

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luisrudge opened this issue Oct 19, 2024 · 11 comments · May be fixed by #6769
Closed
4 tasks done

browser testing: enable (or make it easier) to copy/paste text #6746

luisrudge opened this issue Oct 19, 2024 · 11 comments · May be fixed by #6769
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enhancement: pending triage p2-to-be-discussed Enhancement under consideration (priority)

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@luisrudge
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Clear and concise description of the problem

I want to paste text into an element

Suggested solution

no idea 😅 I'm sure the drivers must have support for the clipboard api somehow

Alternative

No response

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@luisrudge luisrudge changed the title enable (or make it easier) to copy/paste text browser testing: enable (or make it easier) to copy/paste text Oct 19, 2024
@hi-ogawa
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no idea 😅 I'm sure the drivers must have support for the clipboard api somehow

I'm not sure. There are some issue on playwright microsoft/playwright#15860 microsoft/playwright#24039, which suggest workaround using ClipboardEvent or navigator.clipboard on window (so no cdp or bid based mechanism I suppose?)

Have you tried testing-library's clipboard api? https://testing-library.com/docs/user-event/clipboard

@luisrudge
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yeah I tried RTL with

await userEventTestingLibrary.keyboard('{Control}{c}');
await userEventTestingLibrary.keyboard('{Control}{v}');

and also

await userEventTestingLibrary.paste('test');

but it didn't work

@luisrudge
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to be clear, I don't want to interact with window.navigator.clipboard. I need to test what happens when you paste into a specific text input

@hi-ogawa
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hi-ogawa commented Oct 20, 2024 •
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Once again, it looks working with this example of mine 😅 https://stackblitz.com/edit/vitest-dev-vitest-ccmzqe?file=test%2Frepro.test.ts (please test it locally to use playwright) Note that {Control>} is the command to hold down the key.

Screenshot 
import { test } from 'vitest';
import { page, userEvent } from '@vitest/browser/context';

test('clipboard', async () => {
  document.body.innerHTML = `
    <input placeholder="first" />
    <input placeholder="second" />
  `;

  // write "hello" and copy to clipboard
  await userEvent.click(page.getByPlaceholder('first'));
  await userEvent.keyboard('hello');
  await userEvent.keyboard('{Control>}{a}{/Control}');
  await userEvent.keyboard('{Control>}{c}{/Control}');

  // paste twice into second
  await userEvent.click(page.getByPlaceholder('second'));
  await userEvent.keyboard('{Control>}{v}{/Control}');
  await userEvent.keyboard('{Control>}{v}{/Control}');

  // hellohello
  console.log(page.getByPlaceholder('second').query()?.value);
});

image

(Tested with playwright chromium and webdriverio chrome)

Can you share how you code looks like?

@hi-ogawa hi-ogawa added the p2-to-be-discussed Enhancement under consideration (priority) label Oct 21, 2024
@hi-ogawa hi-ogawa moved this to P2 - 3 in Team Board Oct 21, 2024
@hi-ogawa
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hi-ogawa commented Oct 21, 2024 •
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"Control+C/X/V" combo seems to mostly work on playwright microsoft/playwright#8114 and webdriverio https://webdriver.io/docs/api/expect-webdriverio/#tohaveclipboardtext, so we could implement testling-library-like copy/cut/paste API on top of that https://testing-library.com/docs/user-event/clipboard/
I'm not sure how we can expose DataTransfer though.

@luisrudge
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thanks for the repro, but it seems like it's not working?
image

the value is not there and nothing is logged to the console.

@luisrudge
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luisrudge commented Oct 21, 2024 •
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it also doesn't work locally
image

@hi-ogawa
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Hmm weird, It's working on my Linux PC. Do you use Mac? According to microsoft/playwright#8114, you might need Meta instead of Control for modifier.

@sheremet-va
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The copy/paste userEvent API is supposed to be implemented at some point: #5770 (comment)

PRs are welcome.

@hi-ogawa hi-ogawa mentioned this issue Oct 22, 2024
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@luisrudge
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luisrudge commented Oct 22, 2024 •
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after my conversation in discord with @hi-ogawa, we figured out the issue:

  • when you run in stackblitz, it always run in 'preview' (even if you configured playwright or webdriverio)
  • so I had to test it locally, but since I'm using a Mac, I have to use the Meta key and not Control

For other people with the same issue, this is how you copy/paste content:

Mac

import { test } from 'vitest';
import { page, userEvent } from '@vitest/browser/context';

test('clipboard', async () => {
  document.body.innerHTML = `
    <input placeholder="first" />
    <input placeholder="second" />
  `;

  // write "hello" and copy to clipboard
  await userEvent.click(page.getByPlaceholder('first'));
  await userEvent.keyboard('hello');
  await userEvent.keyboard('{selectall}');
  await userEvent.keyboard('{Meta>}{c}{/Meta}');

  // paste twice into second
  await userEvent.click(page.getByPlaceholder('second'));
  await userEvent.keyboard('{Meta>}{v}{/Meta}');
  await userEvent.keyboard('{Meta>}{v}{/Meta}');

  // hellohello
  console.log(page.getByPlaceholder('second').query()?.value);
});

Linux/Windows

import { test } from 'vitest';
import { page, userEvent } from '@vitest/browser/context';

test('clipboard', async () => {
  document.body.innerHTML = `
    <input placeholder="first" />
    <input placeholder="second" />
  `;

  // write "hello" and copy to clipboard
  await userEvent.click(page.getByPlaceholder('first'));
  await userEvent.keyboard('hello');
  await userEvent.keyboard('{selectall}');
  await userEvent.keyboard('{Control>}{c}{/Control}');

  // paste twice into second
  await userEvent.click(page.getByPlaceholder('second'));
  await userEvent.keyboard('{Control>}{v}{/Control}');
  await userEvent.keyboard('{Control>}{v}{/Control}');

  // hellohello
  console.log(page.getByPlaceholder('second').query()?.value);
});

@luisrudge
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luisrudge commented Oct 22, 2024 •
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oh, nevermind. Playwright supports the ControlOrMeta key natively, so you can use just that 😅
https://playwright.dev/docs/api/class-keyboard#keyboard-press

import { test } from 'vitest';
import { page, userEvent } from '@vitest/browser/context';

test('clipboard', async () => {
  document.body.innerHTML = `
    <input placeholder="first" />
    <input placeholder="second" />
  `;

  // write "hello" and copy to clipboard
  await userEvent.click(page.getByPlaceholder('first'));
  await userEvent.keyboard('hello');
  await userEvent.keyboard('{selectall}');
  await userEvent.keyboard('{ControlOrMeta>}{c}{/ControlOrMeta}');

  // paste twice into second
  await userEvent.click(page.getByPlaceholder('second'));
  await userEvent.keyboard('{ControlOrMeta>}{v}{/ControlOrMeta}');
  await userEvent.keyboard('{ControlOrMeta>}{v}{/ControlOrMeta}');

  // hellohello
  console.log(page.getByPlaceholder('second').query()?.value);
});

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enhancement: pending triage p2-to-be-discussed Enhancement under consideration (priority)
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feat(browser): support clipboard api userEvent.copy, cut, paste hi-ogawa/vitest
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@luisrudge @hi-ogawa @sheremet-va