1841245 - [wpt-sync] Sync PR 40828 - Make calc(NaN) behave as calc(0) when it's top level calculation

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, task, P4)

Description

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

Sync web-platform-tests PR 40828 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/40828
Details from upstream follow.

Daniil Sakhapov <[e-mail]> wrote:

Make calc(NaN) behave as calc(0) when it's top level calculation

https://www.w3.org/TR/css-values-4/#top-level-calculation

calc-interpolation.html test changes due to the CSS Values 4 spec:

Dividing zero by zero, dividing ±∞ by ±∞, multiplying 0 by ±∞,
adding +∞ to −∞ (or the equivalent subtractions) produces NaN.

Interpolation of math functions, with each other or with numeric values
and other numeric-valued functions, is defined as
Vresult = calc((1 - p) * Va + p * Vb).

This means that the interpolation at p=0 is: calc((1 - 0) * 0px + 0 * (infinity * 1px), which simplifies to calc(0px + NaN), which should clamp to 0px.

Fixed: 1334599

Change-Id: I09f6a2fa9b60f17c5fc6562192f53918e365fe55

Reviewed-on: https://chromium-review.googlesource.com/4651881
WPT-Export-Revision: d25f97424514f918b9b4a4bd7fb98a7d33c69707

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=e308d4dd3cc04fa90dee2f0768cc4734432d0554

Comment 2

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

CI Results

Ran 9 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests and 164 subtests

Status Summary

Firefox

OK : 1
PASS: 140

Chrome

OK : 1
PASS: 130
FAIL: 10

Safari

OK : 1
PASS: 116
FAIL: 24

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/430b20cb9ccd
[wpt PR 40828] - Make calc(NaN) behave as calc(0) when it's top level calculation, a=testonly

Comment 4

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/430b20cb9ccd