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76 lines
3 KiB
HTML
76 lines
3 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>CSS Variables Allowed Syntax</title>
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<link rel="author" title="L. David Baron" href="https://dbaron.org/">
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<link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" />
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<link rel="help" href="http://www.w3.org/TR/css3-values/#lengths" />
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<link rel="help" href="http://www.w3.org/TR/css3-values/#calc-type-checking" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style id="style"></style>
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</head>
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<body>
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<div id=log></div>
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<div id="test"></div>
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<script>
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function run() {
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var test_elt = document.getElementById("test");
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var test_cs = window.getComputedStyle(test_elt, "");
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function description_to_name(description) {
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return description.replace(/\W+/g, "_").replace(/^_/, "").replace(/_$/, "");
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}
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function assert_invalid_value(property, value, description) {
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test(function() {
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test_elt.style.setProperty(property, "inherit");
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test_elt.style.setProperty(property, value);
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assert_equals(test_elt.style.getPropertyValue(property),
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"inherit");
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test_elt.style.setProperty(property, value);
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test_elt.style.removeProperty(property);
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},
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description_to_name(description));
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}
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function assert_valid_value(property, value, computes_to, description) {
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test(function() {
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test_elt.style.setProperty(property, "inherit");
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test_elt.style.setProperty(property, value);
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assert_not_equals(test_elt.style.getPropertyValue(property),
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"inherit");
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assert_equals(test_cs.getPropertyValue(property),
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computes_to);
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test_elt.style.removeProperty(property);
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},
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description_to_name(description));
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}
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assert_invalid_value("margin-left", "calc(0)", // invalid calc expression
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"unitless zero in calc() is a numeric type, not length");
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assert_valid_value("margin-left", "calc(0px)", "0px",
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"0px in calc()");
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assert_invalid_value("margin-left", "calc(1px + 2)", // invalid calc expression
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"addition of length and number");
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assert_invalid_value("margin-left", "calc(2 + 1px)", // invalid calc expression
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"addition of number and length");
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assert_invalid_value("margin-left", "calc(1px - 2)", // invalid calc expression
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"subtraction of length and number");
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assert_invalid_value("margin-left", "calc(2 - 1px)", // invalid calc expression
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"subtraction of number and length");
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assert_valid_value("margin-left", "calc(2px * 2)", "4px",
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"multiplication of length and number");
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assert_valid_value("margin-left", "calc(2 * 2px)", "4px",
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"multiplication of number and length");
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assert_invalid_value("margin-left", "calc(2px * 1px)", // invalid calc expression
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"multiplication of length and length");
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}
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run();
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</script>
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</body>
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</html>
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