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Auto merge of #15867 - servo:negative, r=nox

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Reject negative factors in filter functions (fixes #15494)

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This commit is contained in:
bors-servo 2017-03-08 05:28:59 -08:00 • committed by GitHub
commit 1f2e1e8b84
2 changed files with 45 additions and 2 deletions
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43
tests/unit/style/parsing/effects.rs
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@ -63,3 +63,46 @@ fn test_effects_parser_exhaustion() {
assert_parser_exhausted!(perspective_origin, "1px some-rubbish", false);
assert_parser_exhausted!(transform_origin, "1px some-rubbish", false);
}
#[test]
fn test_parse_factor() {
use parsing::parse;
use style::properties::longhands::filter;
assert!(parse(filter::parse, "brightness(0)").is_ok());
assert!(parse(filter::parse, "brightness(55)").is_ok());
assert!(parse(filter::parse, "brightness(100)").is_ok());
assert!(parse(filter::parse, "contrast(0)").is_ok());
assert!(parse(filter::parse, "contrast(55)").is_ok());
assert!(parse(filter::parse, "contrast(100)").is_ok());
assert!(parse(filter::parse, "grayscale(0)").is_ok());
assert!(parse(filter::parse, "grayscale(55)").is_ok());
assert!(parse(filter::parse, "grayscale(100)").is_ok());
assert!(parse(filter::parse, "invert(0)").is_ok());
assert!(parse(filter::parse, "invert(55)").is_ok());
assert!(parse(filter::parse, "invert(100)").is_ok());
assert!(parse(filter::parse, "opacity(0)").is_ok());
assert!(parse(filter::parse, "opacity(55)").is_ok());
assert!(parse(filter::parse, "opacity(100)").is_ok());
assert!(parse(filter::parse, "sepia(0)").is_ok());
assert!(parse(filter::parse, "sepia(55)").is_ok());
assert!(parse(filter::parse, "sepia(100)").is_ok());
assert!(parse(filter::parse, "saturate(0)").is_ok());
assert!(parse(filter::parse, "saturate(55)").is_ok());
assert!(parse(filter::parse, "saturate(100)").is_ok());
// Negative numbers are invalid for certain filters
assert!(parse(filter::parse, "brightness(-1)").is_err());
assert!(parse(filter::parse, "contrast(-1)").is_err());
assert!(parse(filter::parse, "grayscale(-1)").is_err());
assert!(parse(filter::parse, "invert(-1)").is_err());
assert!(parse(filter::parse, "opacity(-1)").is_err());
assert!(parse(filter::parse, "sepia(-1)").is_err());
assert!(parse(filter::parse, "saturate(-1)").is_err());
}