1797329 - [wpt-sync] Sync PR 36651 - Make web font styled text re-eligible for lcp.

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 36651 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/36651
Details from upstream follow.

Hao Liu <[e-mail]> wrote:

Make web font styled text re-eligible for lcp.

This CL makes the following happen.
1, If a web font gets applied in swap period and if the style text gets
larger than the existing LCP element size, a new LCP entry is emitted.
2, If a web fonts get applied in block period, no LCP entry is emitted.
3, If a web fonts get applied in swap period, but after user input, no
LCP entry is emitted.

Bug: 1310995
Change-Id: I1313eda1752fa0b5be48184aa28b7f6016f65307
Reviewed-on: https://chromium-review.googlesource.com/3972847
WPT-Export-Revision: fd390c016044d50bdb7b1c666e1a03ccc046466d

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=c56fbaf185037928c3d44457df4dffc735ff7029

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 10 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 5 tests and 1 subtests

Status Summary

Firefox

OK : 1
FAIL : 1
TIMEOUT: 8

Chrome

OK : 3
PASS : 3
TIMEOUT: 4

Safari

TIMEOUT: 10

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /largest-contentful-paint/web-font-styled-text-resize-block.html [wpt.fyi]: TIMEOUT (Chrome: OK, Safari: TIMEOUT)
  • LCP should be not updated if the web font styled text resize occurs during the block period.: TIMEOUT (Chrome: PASS, Safari: TIMEOUT)
• /largest-contentful-paint/web-font-styled-text-resize-swap-after-interaction.html [wpt.fyi]: TIMEOUT (Chrome: OK, Safari: TIMEOUT)
  • LCP should be not updated if the web font styled text resize occurs after an interaction happens: TIMEOUT (Chrome: PASS, Safari: TIMEOUT)
• /largest-contentful-paint/web-font-styled-text-resize-swap-smaller.html [wpt.fyi]
  • LCP should be not updated if the web font styled text resizes to be smaller during the swap period: FAIL (Chrome: PASS, Safari: TIMEOUT)
• /largest-contentful-paint/web-font-styled-text-resize-swap-subnode.html [wpt.fyi]: TIMEOUT (Chrome: TIMEOUT, Safari: TIMEOUT)
  • LCP should be updated if the web font styled text resizes to be larger during the swap period: TIMEOUT (Chrome: TIMEOUT, Safari: TIMEOUT)
• /largest-contentful-paint/web-font-styled-text-resize-swap.html [wpt.fyi]: TIMEOUT (Chrome: TIMEOUT, Safari: TIMEOUT)
  • LCP should be updated if the web font styled text resizes to be larger during the swap period: TIMEOUT (Chrome: TIMEOUT, Safari: TIMEOUT)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/890e17a40393
[wpt PR 36651] - Make web font styled text re-eligible for lcp., a=testonly
https://hg.mozilla.org/integration/autoland/rev/fa2e01ada913
[wpt PR 36651] - Update wpt metadata, a=testonly

Comment 4

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/890e17a40393
https://hg.mozilla.org/mozilla-central/rev/fa2e01ada913