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<!DOCTYPE html>
<title>Self-test for utils.js</title>
<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1/">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/utils.js"></script>
<div id=outer><div id=inner></div></div>
<script>
test(function(){
let syntaxes = all_syntaxes().concat([
'foo',
'bar | <length>',
'<angle> | <length>'
]);
// Don't throw:
syntaxes.forEach(generate_property);
}, 'Default initial values of generated properties are valid (self-test).');
test(function(){
try {
let inherited = generate_property({ syntax: '<length>', inherits: true });
let non_inherited = generate_property({ syntax: '<length>', inherits: false, initialValue: '5px' });
outer.style = `${inherited}: 10px; ${non_inherited}: 11px;`;
assert_equals(getComputedStyle(outer).getPropertyValue(inherited), '10px');
assert_equals(getComputedStyle(outer).getPropertyValue(non_inherited), '11px');
assert_equals(getComputedStyle(inner).getPropertyValue(inherited), '10px');
assert_equals(getComputedStyle(inner).getPropertyValue(non_inherited), '5px');
} finally {
outer.style = '';
inner.style = '';
}
}, 'Generated properties respect inherits flag');
test(function(){
assert_throws_js(Error, () => generate_property({syntax: '<length>', foo: 1}));
assert_throws_js(Error, () => generate_property({syntax: '<length>', inherited: false}));
assert_throws_js(Error, () => generate_property({syntax: '<length>', initial: '10px'}));
}, 'Can\'t generate property with unknown fields');
</script>
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