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[CSS Math Functions] Correctly serialize abs/sign/exp/log/pow/sqrt ro…
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…ot nodes

https://bugs.webkit.org/show_bug.cgi?id=259012
rdar://111948465

Reviewed by Darin Adler.

From the spec https://drafts.csswg.org/css-values-4/#calc-simplification:

> If root is an operator node that’s not one of the calc-operator nodes, and all of its calculation children are numeric values with enough information to compute the operation root represents, return the result of running root’s operation using its children, expressed in the result’s canonical unit.

We now always try to resolve the top-level abs/sign/exp/log/pow/sqrt functions, e.g. abs(-1) now becomes calc(1) instead of staying abs(-1).
This is consistent with calc(abs(-1)) being serialized as calc(1).

* LayoutTests/imported/w3c/web-platform-tests/css/css-values/exp-log-serialize-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/exp-log-serialize.html:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-invalid-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-invalid.html:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-serialize-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-serialize.html:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/signs-abs-serialize-expected.txt:
* LayoutTests/imported/w3c/web-platform-tests/css/css-values/signs-abs-serialize.html:

Re-import WPT with fixes from upstream.

* Source/WebCore/css/calc/CSSCalcOperationNode.cpp:
(WebCore::CSSCalcOperationNode::simplifyNode):
* Source/WebCore/css/calc/CSSCalcOperationNode.h:

Canonical link: https://commits.webkit.org/265879@main
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nt1m committed Jul 8, 2023
1 parent 2517a54 commit ea22468
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11 changes: 5 additions & 6 deletions LayoutTests/imported/w3c/web-platform-tests/css/css-values/exp-log-serialize-expected.txt
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@@ -1,10 +1,10 @@

FAIL 'exp(0)' as a specified value should serialize as 'calc(1)'. assert_equals: 'exp(0)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "exp(0)"
FAIL 'scale(exp(0))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(exp(0))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(exp(0))"
PASS 'exp(0)' as a specified value should serialize as 'calc(1)'.
PASS 'scale(exp(0))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'exp(0)' as a computed value should serialize as '1'.
PASS 'scale(exp(0))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
FAIL 'log(1)' as a specified value should serialize as 'calc(0)'. assert_equals: 'log(1)' and 'calc(0)' should serialize the same in specified values. expected "calc(0)" but got "log(1)"
FAIL 'scale(log(1))' as a specified value should serialize as 'scale(calc(0))'. assert_equals: 'scale(log(1))' and 'scale(calc(0))' should serialize the same in specified values. expected "scale(calc(0))" but got "scale(log(1))"
PASS 'log(1)' as a specified value should serialize as 'calc(0)'.
PASS 'scale(log(1))' as a specified value should serialize as 'scale(calc(0))'.
PASS 'log(1)' as a computed value should serialize as '0'.
PASS 'scale(log(1))' as a computed value should serialize as 'matrix(0, 0, 0, 0, 0, 0)'.
PASS 'calc(exp(0) + log(1) + log(1))' as a specified value should serialize as 'calc(1)'.
Expand All @@ -17,6 +17,5 @@ PASS 'calc(log(1) + 0.5)' as a computed value should serialize as '0.5'.
PASS 'scale(calc(log(1) + 0.5))' as a computed value should serialize as 'matrix(0.5, 0, 0, 0.5, 0, 0)'.
PASS 'calc(log(0))' as a specified value should serialize as 'calc(-infinity)'.
PASS 'scale(calc(log(0)))' as a specified value should serialize as 'scale(calc(-infinity))'.
FAIL 'calc(log(0))' as a computed value should serialize as '-infinity'. assert_equals: '-infinity' should round-trip exactly in computed values. expected "-infinity" but got "1"
FAIL 'scale(calc(log(0)))' as a computed value should serialize as 'matrix(-infinity, 0, 0, -infinity, 0, 0)'. assert_equals: 'matrix(-infinity, 0, 0, -infinity, 0, 0)' should round-trip exactly in computed values. expected "matrix(-infinity, 0, 0, -infinity, 0, 0)" but got "none"
PASS 'calc(log(0))' as a computed value should serialize as '0'.

15 changes: 9 additions & 6 deletions LayoutTests/imported/w3c/web-platform-tests/css/css-values/exp-log-serialize.html
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@@ -1,5 +1,5 @@
<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#comp-func">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#exponent-funcs">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#numbers">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-serialize">
<link rel="author" title="Apple Inc">
Expand Down Expand Up @@ -33,8 +33,11 @@
'calc(log(1) + 0.5)',
'calc(0.5)',
'0.5');
test_serialization(
'calc(log(0))',
'calc(-infinity)',
'-infinity');
</script>

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>
4 changes: 2 additions & 2 deletions ...tTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-invalid-expected.txt
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Expand Up @@ -10,7 +10,6 @@ PASS e.style['opacity'] = "hypot(1 * )" should not set the property value
PASS e.style['opacity'] = "hypot(1 / )" should not set the property value
PASS e.style['opacity'] = "hypot(1 2)" should not set the property value
PASS e.style['opacity'] = "hypot(1, , 2)" should not set the property value
FAIL e.style['opacity'] = "hypot(1, 2)" should not set the property value assert_equals: expected "" but got "calc(2.236068)"
PASS e.style['opacity'] = "sqrt()" should not set the property value
PASS e.style['opacity'] = "sqrt( )" should not set the property value
PASS e.style['opacity'] = "sqrt(,)" should not set the property value
Expand All @@ -33,17 +32,18 @@ PASS e.style['opacity'] = "pow(1 * )" should not set the property value
PASS e.style['opacity'] = "pow(1 / )" should not set the property value
PASS e.style['opacity'] = "pow(1 2)" should not set the property value
PASS e.style['opacity'] = "pow(1, , 2)" should not set the property value
FAIL e.style['opacity'] = "pow(1, 2)" should not set the property value assert_equals: expected "" but got "pow(1, 2)"
PASS e.style['letter-spacing'] = "calc(1px * pow(1))" should not set the property value
PASS e.style['letter-spacing'] = "calc(1px * pow(2px, 3px))" should not set the property value
PASS e.style['letter-spacing'] = "calc(sqrt(100px)" should not set the property value
PASS e.style['letter-spacing'] = "hypot(2px, 40%)" should not set the property value
PASS e.style['letter-spacing'] = "hypot(2px, 3)" should not set the property value
PASS e.style['letter-spacing'] = "hypot(3, ,4)" should not set the property value
PASS e.style['letter-spacing'] = "hypot(1, 2)" should not set the property value
PASS e.style['letter-spacing'] = "calc(1px * pow(2 3))" should not set the property value
PASS e.style['letter-spacing'] = "hypot()" should not set the property value
PASS e.style['letter-spacing'] = "calc(pow(2))" should not set the property value
PASS e.style['letter-spacing'] = "pow())" should not set the property value
PASS e.style['letter-spacing'] = "pow(1, 2)" should not set the property value
PASS e.style['letter-spacing'] = "calc(sqrt())" should not set the property value
PASS e.style['letter-spacing'] = "calc(sqrt(100, 200))" should not set the property value

8 changes: 4 additions & 4 deletions LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-invalid.html
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@@ -1,5 +1,5 @@
<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#comp-func">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#exponent-funcs">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#numbers">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-type-checking">
<link rel="author" title="Apple Inc">
Expand Down Expand Up @@ -27,7 +27,6 @@
test_invalid_number('hypot(1 / )');
test_invalid_number('hypot(1 2)');
test_invalid_number('hypot(1, , 2)');
test_invalid_number('hypot(1, 2)');
test_invalid_number('sqrt()');
test_invalid_number('sqrt( )');
test_invalid_number('sqrt(,)');
Expand All @@ -50,7 +49,6 @@
test_invalid_number('pow(1 / )');
test_invalid_number('pow(1 2)');
test_invalid_number('pow(1, , 2)');
test_invalid_number('pow(1, 2)');

// General tests
test_invalid_length('calc(1px * pow(1))');
Expand All @@ -59,10 +57,12 @@
test_invalid_length('hypot(2px, 40%)');
test_invalid_length('hypot(2px, 3)');
test_invalid_length('hypot(3, ,4)');
test_invalid_length('hypot(1, 2)');
test_invalid_length('calc(1px * pow(2 3))');
test_invalid_length('hypot()');
test_invalid_length('calc(pow(2))');
test_invalid_length('pow())');
test_invalid_length('pow(1, 2)');
test_invalid_length('calc(sqrt())');
test_invalid_length('calc(sqrt(100, 200))');
</script>
</script>
24 changes: 12 additions & 12 deletions ...ests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-serialize-expected.txt
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@@ -1,24 +1,24 @@

FAIL 'pow(1,1)' as a specified value should serialize as 'calc(1)'. assert_equals: 'pow(1,1)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "pow(1, 1)"
FAIL 'scale(pow(1,1))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(pow(1,1))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(pow(1, 1))"
PASS 'pow(1,1)' as a specified value should serialize as 'calc(1)'.
PASS 'scale(pow(1,1))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'pow(1,1)' as a computed value should serialize as '1'.
PASS 'scale(pow(1,1))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
PASS 'hypot(1)' as a specified value should serialize as 'calc(1)'.
PASS 'scale(hypot(1))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'hypot(1)' as a computed value should serialize as '1'.
PASS 'scale(hypot(1))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
FAIL 'sqrt(1)' as a specified value should serialize as 'calc(1)'. assert_equals: 'sqrt(1)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "sqrt(1)"
FAIL 'scale(sqrt(1))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(sqrt(1))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(sqrt(1))"
PASS 'sqrt(1)' as a specified value should serialize as 'calc(1)'.
PASS 'scale(sqrt(1))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'sqrt(1)' as a computed value should serialize as '1'.
PASS 'scale(sqrt(1))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
PASS 'calc(pow(1,1) + 1)' as a specified value should serialize as 'calc(2)'.
PASS 'scale(calc(pow(1,1) + 1))' as a specified value should serialize as 'scale(calc(2))'.
FAIL 'calc(pow(1,1) + 1)' as a computed value should serialize as '2'. assert_equals: '2' should round-trip exactly in computed values. expected "2" but got "1"
PASS 'scale(calc(pow(1,1) + 1))' as a computed value should serialize as 'matrix(2, 0, 0, 2, 0, 0)'.
PASS 'calc(hypot(1) * 2)' as a specified value should serialize as 'calc(2)'.
PASS 'scale(calc(hypot(1) * 2))' as a specified value should serialize as 'scale(calc(2))'.
FAIL 'calc(hypot(1) * 2)' as a computed value should serialize as '2'. assert_equals: '2' should round-trip exactly in computed values. expected "2" but got "1"
PASS 'scale(calc(hypot(1) * 2))' as a computed value should serialize as 'matrix(2, 0, 0, 2, 0, 0)'.
PASS 'calc(pow(1,1) - 0.5)' as a specified value should serialize as 'calc(0.5)'.
PASS 'scale(calc(pow(1,1) - 0.5))' as a specified value should serialize as 'scale(calc(0.5))'.
PASS 'calc(pow(1,1) - 0.5)' as a computed value should serialize as '0.5'.
PASS 'scale(calc(pow(1,1) - 0.5))' as a computed value should serialize as 'matrix(0.5, 0, 0, 0.5, 0, 0)'.
PASS 'calc(hypot(1) * 0.5)' as a specified value should serialize as 'calc(0.5)'.
PASS 'scale(calc(hypot(1) * 0.5))' as a specified value should serialize as 'scale(calc(0.5))'.
PASS 'calc(hypot(1) * 0.5)' as a computed value should serialize as '0.5'.
PASS 'scale(calc(hypot(1) * 0.5))' as a computed value should serialize as 'matrix(0.5, 0, 0, 0.5, 0, 0)'.
PASS 'calc(sqrt(1) - 1)' as a specified value should serialize as 'calc(0)'.
PASS 'scale(calc(sqrt(1) - 1))' as a specified value should serialize as 'scale(calc(0))'.
PASS 'calc(sqrt(1) - 1)' as a computed value should serialize as '0'.
Expand Down
16 changes: 8 additions & 8 deletions LayoutTests/imported/w3c/web-platform-tests/css/css-values/hypot-pow-sqrt-serialize.html
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#comp-func">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#exponent-funcs">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#numbers">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-serialize">
<link rel="author" title="Apple Inc">
Expand Down Expand Up @@ -29,15 +29,15 @@
'1');

test_serialization(
'calc(pow(1,1) + 1)',
'calc(2)',
'2');
'calc(pow(1,1) - 0.5)',
'calc(0.5)',
'0.5');
test_serialization(
'calc(hypot(1) * 2)',
'calc(2)',
'2');
'calc(hypot(1) * 0.5)',
'calc(0.5)',
'0.5');
test_serialization(
'calc(sqrt(1) - 1)',
'calc(0)',
'0');
</script>
</script>
54 changes: 7 additions & 47 deletions LayoutTests/imported/w3c/web-platform-tests/css/css-values/signs-abs-serialize-expected.txt
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@@ -1,58 +1,18 @@

FAIL 'abs(1)' as a specified value should serialize as 'calc(1)'. assert_equals: 'abs(1)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "abs(1)"
FAIL 'scale(abs(1))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(abs(1))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(abs(1))"
PASS 'abs(1)' as a computed value should serialize as '1'.
PASS 'scale(abs(1))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
FAIL 'sign(.1)' as a specified value should serialize as 'calc(1)'. assert_equals: 'sign(.1)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "sign(0.1)"
FAIL 'scale(sign(.1))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(sign(.1))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(sign(0.1))"
PASS 'sign(.1)' as a computed value should serialize as '1'.
PASS 'scale(sign(.1))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
FAIL 'abs(1 + 2 + 3)' as a specified value should serialize as 'calc(6)'. assert_equals: 'abs(1 + 2 + 3)' and 'calc(6)' should serialize the same in specified values. expected "calc(6)" but got "abs(6)"
FAIL 'scale(abs(1 + 2 + 3))' as a specified value should serialize as 'scale(calc(6))'. assert_equals: 'scale(abs(1 + 2 + 3))' and 'scale(calc(6))' should serialize the same in specified values. expected "scale(calc(6))" but got "scale(abs(6))"
FAIL 'abs(1 + 2 + 3)' as a computed value should serialize as '6'. assert_equals: '6' should round-trip exactly in computed values. expected "6" but got "1"
PASS 'scale(abs(1 + 2 + 3))' as a computed value should serialize as 'matrix(6, 0, 0, 6, 0, 0)'.
FAIL 'sign(1 + 2 + 3)' as a specified value should serialize as 'calc(1)'. assert_equals: 'sign(1 + 2 + 3)' and 'calc(1)' should serialize the same in specified values. expected "calc(1)" but got "sign(6)"
FAIL 'scale(sign(1 + 2 + 3))' as a specified value should serialize as 'scale(calc(1))'. assert_equals: 'scale(sign(1 + 2 + 3))' and 'scale(calc(1))' should serialize the same in specified values. expected "scale(calc(1))" but got "scale(sign(6))"
PASS 'sign(1 + 2 + 3)' as a computed value should serialize as '1'.
PASS 'scale(sign(1 + 2 + 3))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
PASS 'calc(abs(1) + abs(2))' as a specified value should serialize as 'calc(3)'.
PASS 'scale(abs(1))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'scale(sign(.1))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'scale(abs(1 + 2 + 3))' as a specified value should serialize as 'scale(calc(6))'.
PASS 'scale(sign(1 + 2 + 3))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'scale(calc(abs(1) + abs(2)))' as a specified value should serialize as 'scale(calc(3))'.
FAIL 'calc(abs(1) + abs(2))' as a computed value should serialize as '3'. assert_equals: '3' should round-trip exactly in computed values. expected "3" but got "1"
PASS 'scale(calc(abs(1) + abs(2)))' as a computed value should serialize as 'matrix(3, 0, 0, 3, 0, 0)'.
PASS 'calc(sign(.1) + sign(.2))' as a specified value should serialize as 'calc(2)'.
PASS 'scale(calc(sign(.1) + sign(.2)))' as a specified value should serialize as 'scale(calc(2))'.
FAIL 'calc(sign(.1) + sign(.2))' as a computed value should serialize as '2'. assert_equals: '2' should round-trip exactly in computed values. expected "2" but got "1"
PASS 'scale(calc(sign(.1) + sign(.2)))' as a computed value should serialize as 'matrix(2, 0, 0, 2, 0, 0)'.
PASS 'calc(1 + abs(1))' as a specified value should serialize as 'calc(2)'.
PASS 'scale(calc(1 + abs(1)))' as a specified value should serialize as 'scale(calc(2))'.
FAIL 'calc(1 + abs(1))' as a computed value should serialize as '2'. assert_equals: '2' should round-trip exactly in computed values. expected "2" but got "1"
PASS 'scale(calc(1 + abs(1)))' as a computed value should serialize as 'matrix(2, 0, 0, 2, 0, 0)'.
PASS 'calc(sign(.1) + 1)' as a specified value should serialize as 'calc(2)'.
PASS 'scale(calc(sign(.1) + 1))' as a specified value should serialize as 'scale(calc(2))'.
FAIL 'calc(sign(.1) + 1)' as a computed value should serialize as '2'. assert_equals: '2' should round-trip exactly in computed values. expected "2" but got "1"
PASS 'scale(calc(sign(.1) + 1))' as a computed value should serialize as 'matrix(2, 0, 0, 2, 0, 0)'.
FAIL 'calc(abs(inFinity))' as a specified value should serialize as 'calc(inFinity)'. assert_equals: 'calc(inFinity)' should round-trip exactly in specified values. expected "calc(inFinity)" but got "calc(infinity)"
PASS 'scale(calc(abs(inFinity)))' as a specified value should serialize as 'scale(calc(infinity))'.
FAIL 'calc(abs(inFinity))' as a computed value should serialize as 'infinity'. assert_equals: 'infinity' should round-trip exactly in computed values. expected "infinity" but got "1"
FAIL 'scale(calc(abs(inFinity)))' as a computed value should serialize as 'matrix(infinity, 0, 0, infinity, 0, 0)'. assert_equals: 'matrix(infinity, 0, 0, infinity, 0, 0)' should round-trip exactly in computed values. expected "matrix(infinity, 0, 0, infinity, 0, 0)" but got "none"
PASS 'calc(abs(infinity))' as a specified value should serialize as 'calc(infinity)'.
PASS 'scale(calc(abs(infinity)))' as a specified value should serialize as 'scale(calc(infinity))'.
FAIL 'calc(abs(infinity))' as a computed value should serialize as 'infinity'. assert_equals: 'infinity' should round-trip exactly in computed values. expected "infinity" but got "1"
FAIL 'scale(calc(abs(infinity)))' as a computed value should serialize as 'matrix(infinity, 0, 0, infinity, 0, 0)'. assert_equals: 'matrix(infinity, 0, 0, infinity, 0, 0)' should round-trip exactly in computed values. expected "matrix(infinity, 0, 0, infinity, 0, 0)" but got "none"
PASS 'calc(sign(infinity))' as a specified value should serialize as 'calc(1)'.
PASS 'scale(calc(sign(infinity)))' as a specified value should serialize as 'scale(calc(1))'.
PASS 'calc(sign(infinity))' as a computed value should serialize as '1'.
PASS 'scale(calc(sign(infinity)))' as a computed value should serialize as 'matrix(1, 0, 0, 1, 0, 0)'.
FAIL 'abs(infinity)' as a specified value should serialize as 'calc(infinity)'. assert_equals: 'abs(infinity)' and 'calc(infinity)' should serialize the same in specified values. expected "calc(infinity)" but got "abs(infinity)"
FAIL 'scale(abs(infinity))' as a specified value should serialize as 'scale(calc(infinity))'. assert_equals: 'scale(abs(infinity))' and 'scale(calc(infinity))' should serialize the same in specified values. expected "scale(calc(infinity))" but got "scale(abs(infinity))"
FAIL 'abs(infinity)' as a computed value should serialize as 'infinity'. assert_equals: 'infinity' should round-trip exactly in computed values. expected "infinity" but got "1"
FAIL 'scale(abs(infinity))' as a computed value should serialize as 'matrix(infinity, 0, 0, infinity, 0, 0)'. assert_equals: 'matrix(infinity, 0, 0, infinity, 0, 0)' should round-trip exactly in computed values. expected "matrix(infinity, 0, 0, infinity, 0, 0)" but got "none"
PASS 'calc(abs(-infinity))' as a specified value should serialize as 'calc(infinity)'.
PASS 'scale(abs(infinity))' as a specified value should serialize as 'scale(calc(infinity))'.
PASS 'scale(calc(abs(-infinity)))' as a specified value should serialize as 'scale(calc(infinity))'.
FAIL 'calc(abs(-infinity))' as a computed value should serialize as 'infinity'. assert_equals: 'infinity' should round-trip exactly in computed values. expected "infinity" but got "1"
FAIL 'scale(calc(abs(-infinity)))' as a computed value should serialize as 'matrix(infinity, 0, 0, infinity, 0, 0)'. assert_equals: 'matrix(infinity, 0, 0, infinity, 0, 0)' should round-trip exactly in computed values. expected "matrix(infinity, 0, 0, infinity, 0, 0)" but got "none"
PASS 'calc(sign(-1 * infinity))' as a specified value should serialize as 'calc(-1)'.
PASS 'scale(calc(sign(-1 * infinity)))' as a specified value should serialize as 'scale(calc(-1))'.
FAIL 'calc(sign(-1 * infinity))' as a computed value should serialize as '-1'. assert_equals: '-1' should round-trip exactly in computed values. expected "-1" but got "0"
PASS 'scale(calc(sign(-1 * infinity)))' as a computed value should serialize as 'matrix(-1, 0, 0, -1, 0, 0)'.
PASS 'scale(calc(sign(-1 * NaN)))' as a specified value should serialize as 'scale(calc(NaN))'.
PASS 'scale(calc(sign(1 * NaN)))' as a specified value should serialize as 'scale(calc(NaN))'.

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