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<!DOCTYPE html>
<html>
<head>
<title>Testing the parsing of the font-variation-settings property</title>
<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#propdef-font-variation-settings" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="value-parser-test"></div>
<script>
var valueParserTests = [
{ value: "'wght' 1000, '9 ~A' -45", expectedComputedValue: "\"wght\" 1000, \"9 ~A\" -45", isValid: true, message: "Axis tag with valid non-letter ascii characters" },
{ value: "'\u001Fbdc' 123", expectedComputedValue: "", isValid: false, message: "Invalid character below allowed range (first char)"},
{ value: "'abc\u007F' 123", expectedComputedValue: "", isValid: false, message: "Invalid character above allowed range (mid char)"},
{ value: "'wght' 1e3, 'slnt' -450.0e-1 ", expectedComputedValue: "\"wght\" 1000, \"slnt\" -45", isValid: true, message: "Axis values in scientific form are valid" },
{ value: "normal", expectedComputedValue: "normal", isValid: true, message: "'normal' value is valid" },
{ value: "'a' 1234", expectedComputedValue: "", isValid: false, message: "Tag with less than 4 characters is invalid"},
{ value: "'abcde' 1234", expectedComputedValue: "", isValid: false, message: "Tag with more than 4 characters is invalid"},
{ value: "'wght' 200, ", expectedComputedValue: "", isValid: false, message: "Trailing comma is invalid"},
{ value: "abcd 123", expectedComputedValue: "", isValid: false, message: "Unquoted tags are invalid"},
{ value: "'abcd\" 123", expectedComputedValue: "", isValid: false, message: "Unmatched quotes around tag are invalid" },
{ value: "'abcd'", expectedComputedValue: "", isValid: false, message: "Tag without value isinvalid"},
{ value: "123", expectedComputedValue: "", isValid: false, message: "Value without tag is invalid"},
{ value: "123 'abcd'", expectedComputedValue: "", isValid: false, message: "Value before tag is invalid"},
{ value: "'wght' 200 'abcd' 400", expectedComputedValue: "", isValid: false, message: "Missing comma between axes is invalid"},
{ value: "'wght' calc(100 + 200)", expectedComputedValue: "\"wght\" 300", isValid: true, message: "Calculations should be supported" },
{ value: "'wght' 100px", expectedComputedValue: "", isValid: false, message: "Units should not be supported" },
{ value: "'wght' calc(100px + 200px)", expectedComputedValue: "", isValid: false, message: "Units should not be supported (in calc)" },
{ value: "'wght' 42%", expectedComputedValue: "", isValid: false, message: "Percentages should not be supported" },
{ value: "'wght' calc(100%)", expectedComputedValue: "", isValid: false, message: "Percentages should not be supported (in calc)" },
];
valueParserTests.forEach(function (testCase) {
test(() => {
var element = document.getElementById("value-parser-test");
// Reset to empty in order for testing to continue in case the next test would not parse as valid
element.style.fontVariationSettings = "";
element.style.fontVariationSettings = testCase.value;
var computed = window.getComputedStyle(element).fontVariationSettings;
if (testCase.isValid) {
assert_equals(computed, testCase.expectedComputedValue, testCase.message);
}
else {
assert_equals(computed, "normal", testCase.message);
}
element.style.fontVariationSettings = "";
}, "Property value: " + testCase.message);
});
valueParserTests.forEach(function (testCase) {
test(() => { assert_equals(window.CSS.supports("font-variation-settings", testCase.value), testCase.isValid, testCase.message); }, "@supports: " + testCase.message);
});
</script>
</body>
</html>
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