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Add to_computed method for CalcLengthOrPercentage

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* Add to_computed method to calculate `calc()` value with parent size,
if parent container size is `None`, the result will be `None`.
* Add from_option method for `MaybeAuto`, to construct from
`Option<Au>`.
* Update some test case.
This commit is contained in:
石博文 2017-04-20 11:27:19 +08:00
parent 5062c4b117
commit 22f99c71b9
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8 changed files with 47 additions and 32 deletions
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13
tests/unit/style/attr.rs
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@ -4,6 +4,19 @@
use app_units::Au;
use style::attr::{AttrValue, LengthOrPercentageOrAuto, parse_length};
use style::values::computed::CalcLengthOrPercentage;
#[test]
fn test_length_calc() {
let calc = CalcLengthOrPercentage { length: Au(10), percentage: Some(0.2) };
assert_eq!(calc.to_computed(Some(Au(10))), Some(Au(12)));
assert_eq!(calc.to_computed(Some(Au(0))), Some(Au(10)));
assert_eq!(calc.to_computed(None), None);
let calc = CalcLengthOrPercentage { length: Au(10), percentage: None };
assert_eq!(calc.to_computed(Some(Au(0))), Some(Au(10)));
assert_eq!(calc.to_computed(None), Some(Au(10)));
}
#[test]
fn test_parse_double() {

3
tests/wpt/metadata-css/css-values-3_dev/html/calc-height-block-1.htm.ini
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@ -1,3 +0,0 @@
[calc-height-block-1.htm]
type: reftest
expected: FAIL

3
tests/wpt/metadata-css/css-values-3_dev/html/calc-max-height-block-1.htm.ini
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@ -1,3 +0,0 @@
[calc-max-height-block-1.htm]
type: reftest
expected: FAIL

3
tests/wpt/metadata-css/css-values-3_dev/html/calc-min-height-block-1.htm.ini
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@ -1,3 +0,0 @@
[calc-min-height-block-1.htm]
type: reftest
expected: FAIL