use icu::properties::CodePointSetData;
use icu::properties::props::Math;
let math = CodePointSetData::new::<Math>();
assert!(math.contains('='));
assert!(math.contains('+'));
assert!(!math.contains('-'));
assert!(math.contains('−')); // U+2212 MINUS SIGN
assert!(!math.contains('/'));
assert!(math.contains('∕')); // U+2215 DIVISION SLASH