<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test.js"></script>
<script>
const CONTAINS_UNPAIRED_SURROGATES = 'abc\uDC00def\uD800ghi';
const REPLACED = 'abc\uFFFDdef\uFFFDghi';

description("Tests use of USVString in CSSStyleDeclaration.");

var declaration = document.styleSheets[0].cssRules[0].style;
declaration.setProperty("animation-name", CONTAINS_UNPAIRED_SURROGATES);
shouldBeEqualToString("declaration.getPropertyValue('animation-name')", REPLACED);
shouldBeTrue("declaration.cssText.includes(REPLACED)");
shouldBeEqualToString("declaration.removeProperty('animation-name')", REPLACED);
</script>
</body>
</html>