47 lines
1.4 KiB
HTML
47 lines
1.4 KiB
HTML
<!doctype html>
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<html>
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<head>
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<link rel="help" href="https://drafts.csswg.org/cssom/#dom-cssstyledeclaration-setproperty"/>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<script>
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var style = document.body.style;
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test(function() {
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style.color = 'white';
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assert_equals(style.color, 'white');
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style.setProperty('color', undefined);
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assert_equals(style.color, 'white');
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}, "Verify that setting a CSS property to undefined has no effect.");
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test(function() {
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style.color = 'white';
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assert_equals(style.color, 'white');
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assert_equals(style.getPropertyPriority('color'), '');
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style.setProperty('color', 'red', undefined);
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assert_equals(style.color, 'red');
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assert_equals(style.getPropertyPriority('color'), '');
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}, "Verify that setting a CSS property priority to undefined is accepted.");
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test(function() {
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style.color = 'white';
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assert_equals(style.color, 'white');
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style.setProperty('color', null);
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assert_equals(style.color, '');
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}, "Verify that setting a CSS property to null is treated like empty string.");
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test(function() {
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style.color = 'white';
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assert_equals(style.color, 'white');
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style.setProperty('color', 'red', null);
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assert_equals(style.color, 'red');
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}, "Verify that setting a CSS property priority to null is treated like empty string.");
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</script>
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</body>
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</html>
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