Fix css/css-typed-om/the-stylepropertymap/properties/grid-template-co…

…lumns-rows.html WPT test

https://bugs.webkit.org/show_bug.cgi?id=249828

Reviewed by Simon Fraser.

Fix css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows.html
WPT test to match the specification:
- https://w3c.github.io/csswg-drafts/css-grid/#track-sizing
- https://w3c.github.io/csswg-drafts/css-grid/#typedef-track-list
- https://w3c.github.io/csswg-drafts/css-grid/#typedef-track-size
- https://w3c.github.io/csswg-drafts/css-grid/#typedef-track-breadth

The specification indicates that the track size cannot be a negative value.
However, the test was expected -3.14% as computed value in one of the checks.

* LayoutTests/imported/w3c/web-platform-tests/css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows.html:

Canonical link: https://commits.webkit.org/258302@main

LayoutTests/imported/w3c/web-platform-tests/css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows-expected.txt

@@ -10,7 +10,7 @@ PASS Can set 'grid-template-columns' to a length: -3.14em
 PASS Can set 'grid-template-columns' to a length: 3.14cm
 PASS Can set 'grid-template-columns' to a length: calc(0px + 0em)
 PASS Can set 'grid-template-columns' to a percent: 0%
-FAIL Can set 'grid-template-columns' to a percent: -3.14% assert_approx_equals: expected -3.14 +/- 0.000001 but got 0
+PASS Can set 'grid-template-columns' to a percent: -3.14%
 PASS Can set 'grid-template-columns' to a percent: 3.14%
 PASS Can set 'grid-template-columns' to a percent: calc(0% + 0%)
 PASS Can set 'grid-template-columns' to a flexible length: 0fr
@@ -44,7 +44,7 @@ PASS Can set 'grid-template-rows' to a length: -3.14em
 PASS Can set 'grid-template-rows' to a length: 3.14cm
 PASS Can set 'grid-template-rows' to a length: calc(0px + 0em)
 PASS Can set 'grid-template-rows' to a percent: 0%
-FAIL Can set 'grid-template-rows' to a percent: -3.14% assert_approx_equals: expected -3.14 +/- 0.000001 but got 0
+PASS Can set 'grid-template-rows' to a percent: -3.14%
 PASS Can set 'grid-template-rows' to a percent: 3.14%
 PASS Can set 'grid-template-rows' to a percent: calc(0% + 0%)
 PASS Can set 'grid-template-rows' to a flexible length: 0fr

LayoutTests/imported/w3c/web-platform-tests/css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows.html

@@ -13,6 +13,15 @@
 <script>
 'use strict';
 
+function assert_is_equal_with_clamping_percentage(input, result) {
+  const percent = input.to('percent').value;
+
+  if (percent < 0)
+    assert_style_value_equals(result, new CSSUnitValue(0, 'percent'));
+  else
+    assert_style_value_equals(result, new CSSUnitValue(percent, 'percent'));
+}
+
 for (const suffix of ['columns', 'rows']) {
   runPropertyTests(`grid-template-${suffix}`, [
     { syntax: 'none' },
@@ -22,7 +31,8 @@
     },
     {
       syntax: '<percentage>',
-      specified: assert_is_equal_with_range_handling
+      specified: assert_is_equal_with_range_handling,
+      computed: assert_is_equal_with_clamping_percentage
     },
     {
       syntax: '<flex>',