Bug 1838625 [wpt PR 40567] - Fix wpt tests for css math functions to …

…handle NaN and infinity, a=testonly

Automatic update from web-platform-tests
Fix wpt tests for css math functions to handle NaN and infinity (#40567)

Change tests results to see that NaN goes to 0 on top-level as per:
https://drafts.csswg.org/css-values-4/#top-level-calculation

And correctly handle the infinity expectations. Remove -infinity for
matrix as it can't round-trip.

Reviewed: web-platform-tests/wpt#40567
Discussed: web-platform-tests/interop#337

Change-Id: I4a0a7273c9e82a7f6e21b3bf8ed877b62076e3d3

Co-authored-by: Daniil Sakhapov <sakhapovchromium.org>
--

wpt-commits: 4e1fc86b7e59919575c9832142e8d81217b3ff02
wpt-pr: 40567

UltraBlame original commit: be20ef0ed97bfd3bebfe2cf91cb8965e9cc88ec4

testing/web-platform/tests/css/css-values/exp-log-serialize.html

@@ -33,8 +33,11 @@
     'calc(log(1) + 0.5)',
     'calc(0.5)',
     '0.5');
-test_serialization(
-    'calc(log(0))',
-    'calc(-infinity)',
-    '-infinity');
+
+const t = 'calc(log(0))';
+const s = 'calc(-infinity)';
+const c = '0';
+test_specified_serialization('opacity', t, s);
+test_specified_serialization('transform', `scale(${t})`, `scale(${s})`);
+test_computed_serialization('opacity', t, c);
 </script>

testing/web-platform/tests/css/css-values/round-mod-rem-serialize.html

@@ -11,7 +11,7 @@
 <script>
 function test_serialization(t,s,c) {
     test_specified_serialization('opacity', t, s);
-    test_specified_serialization('transform', `scale(${t})`, `scale(calc(${c}))`);
+    test_specified_serialization('transform', `scale(${t})`, `scale(${s})`);
     test_computed_serialization('opacity', t, c);
     test_computed_serialization('transform', `scale(${t})`, `matrix(${c}, 0, 0, ${c}, 0, 0)`);
 }
@@ -32,13 +32,13 @@
 test_serialization(
     'calc(round(1,0))',
     'calc(NaN)',
-    'NaN');
+    '0');
 test_serialization(
     'calc(mod(1,0))',
     'calc(NaN)',
-    'NaN');
+    '0');
 test_serialization(
     'calc(rem(1,0))',
     'calc(NaN)',
-    'NaN');
+    '0');
 </script>