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120 lines
4.5 KiB
HTML
120 lines
4.5 KiB
HTML
<!doctype html>
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<title>Calc rounds to integer</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel=author title="Tab Atkins-Bittner" href="https://www.xanthir.com/contact/">
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<link rel="help" href="https://drafts.csswg.org/css-values/#calc-range">
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<link rel="help" href="https://drafts.csswg.org/css-easing/#funcdef-step-easing-function-steps">
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<link rel="help" href="https://drafts.csswg.org/css-multicol-2/#column-span">
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<link rel="help" href="https://drafts.csswg.org/css-lists/#propdef-counter-reset">
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<link rel="help" href="https://drafts.csswg.org/css-lists/#propdef-counter-increment">
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<link rel="help" href="https://drafts.csswg.org/css-lists/#propdef-counter-set">
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<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#font-feature-settings-prop">
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<link rel="help" href="https://drafts.csswg.org/css-grid/#propdef-grid-template-rows">
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<link rel="help" href="https://drafts.csswg.org/css-grid/#propdef-grid-row">
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<link rel="help" href="https://drafts.csswg.org/css-text-4/#propdef-hyphenate-limit-chars">
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<link rel="help" href="https://drafts.csswg.org/css-text-4/#propdef-hyphenate-limit-lines">
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<link rel="help" href="https://drafts.csswg.org/css-inline-3/#propdef-initial-letter">
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<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#propdef-max-lines">
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<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#propdef-order">
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<link rel="help" href="https://drafts.csswg.org/css-break-4/#propdef-orphans">
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<link rel="help" href="https://drafts.csswg.org/css-writing-modes-4/#propdef-text-combine-upright">
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<link rel="help" href="https://drafts.csswg.org/css-break-4/#propdef-widows">
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<link rel="help" href="https://drafts.csswg.org/css2/#propdef-z-index">
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<!--
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Verifying that, per V&U, a calc() that results in a non-integer value
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gets rounded to the nearest integer
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when used in a place that requires <integer> specifically.
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This tests both straight-up decimal-point values,
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and scinot, which is defined to parse as <number-token>.
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-->
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<body>
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<script>
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runTests("animation-timing-function", "steps(xxx)");
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runTests("column-span");
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runTests("counter-increment", "foo xxx");
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runTests("counter-reset", "foo xxx");
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runTests("counter-set", "foo xxx");
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runTests("font-feature-settings", '"fooo" xxx');
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runTests("grid-row");
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runTests("grid-template-rows", "repeat(xxx, 10px)");
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runTests("hyphenate-limit-chars");
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runTests("hyphenate-limit-lines");
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runTests("initial-letter", "1.1 xxx");
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runTests("max-lines");
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runTests("order");
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runTests("orphans");
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runTests("text-combine-upright", "digits xxx");
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runTests("transition-timing-function", "steps(xxx)");
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runTests("widows");
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runTests("z-index");
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function runTests(prop, valPattern="xxx") {
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const el = document.body;
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// Don't spuriously fail bc the prop or val isn't supported.
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if(!verifySupport(el, prop, valPattern)) return;
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const validValues = [
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"10",
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"calc(10)",
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"calc(10.1)",
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"calc(1e1)",
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"calc(1.1e1)",
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];
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const invalidValues = [
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"1e1",
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"1.1e1",
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"10.1",
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];
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for(let testVal of validValues) {
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testInt(el, prop, testVal, valPattern);
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}
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for(let testVal of invalidValues) {
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testIntInvalid(el, prop, testVal, valPattern);
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}
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}
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function verifySupport(el, prop, valPattern) {
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let testVal = "10";
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if(valPattern !== undefined) {
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testVal = valPattern.replace("xxx", testVal);
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}
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el.removeAttribute("style");
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const nullVal = getComputedStyle(el)[prop];
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el.style.setProperty(prop, testVal);
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return getComputedStyle(el)[prop] != nullVal;
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}
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function testInt(el, prop, testVal, valPattern) {
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// to avoid needing to specify serialization,
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// just test whether it parses at all
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if(valPattern !== undefined) {
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testVal = valPattern.replace("xxx", testVal);
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}
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test(()=>{
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el.removeAttribute("style");
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const nullVal = getComputedStyle(el)[prop];
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el.style.setProperty(prop, testVal);
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assert_not_equals(getComputedStyle(el)[prop], nullVal);
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}, `${prop} should accept "${testVal}"`)
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}
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function testIntInvalid(el, prop, testVal, valPattern) {
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// similarly, just verify it doesn't parse at all
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if(valPattern !== undefined) {
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testVal = valPattern.replace("xxx", testVal);
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}
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test(()=>{
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el.removeAttribute("style");
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const nullVal = getComputedStyle(el)[prop];
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el.style.setProperty(prop, testVal);
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assert_equals(getComputedStyle(el)[prop], nullVal);
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}, `${prop} should not accept "${testVal}"`)
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}
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</script>
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