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98 lines
3.6 KiB
HTML
98 lines
3.6 KiB
HTML
<!DOCTYPE html>
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<meta charset="UTF-8">
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<title>CSS Values and Units Test: computed value of 'tab-size' and 'opacity' when specified with calc() function</title>
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<!--
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Original test is:
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https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/calc-numbers.html
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-->
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<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
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<link rel="help" href="https://www.w3.org/TR/css-color-3/#transparency">
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<link rel="help" href="https://www.w3.org/TR/css-text-3/#tab-size-property">
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<link rel="help" href="https://www.w3.org/TR/css3-values/#calc-computed-value">
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<link rel="help" href="https://www.w3.org/TR/css3-values/#calc-range">
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<meta name="flags" content="invalid">
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<meta content="This test verifies how 11 calc() functions are computed for 'opacity' and 'tab-size'." name="assert">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="target"></div>
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<script>
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function startTesting()
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{
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function verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description)
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{
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var elemTarget = document.getElementById("target");
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test(function()
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{
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elemTarget.style.setProperty(property_name, initial_value);
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/*
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In exactly 6 out of the 11 sub-tests, the initial_value will
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act as a fallback value because the specified value generates
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an invalid value. Since we are running 11 consecutive tests
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on the same element, then it is necessary to 'reset' its
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property to an initial value.
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*/
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elemTarget.style.setProperty(property_name, specified_value);
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assert_equals(getComputedStyle(elemTarget)[property_name], expected_value, specified_value + ' should compute to ' + expected_value);
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}, description);
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}
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/* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */
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verifyComputedStyle("tab-size", "initial", "calc(2 * 3)", "6", "testing tab-size: calc(2 * 3)");
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verifyComputedStyle("tab-size", "12345", "calc(2 * -4)", "0", "testing tab-size: calc(2 * -4)");
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/*
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an out-of-range value inside a calc() does not cause
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the declaration to become invalid. The value resulting
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from an expression must be clamped to the range
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allowed in the target context.
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https://www.w3.org/TR/css-values-3/#calc-range
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*/
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verifyComputedStyle("opacity", "initial", "calc(2 / 4)", "0.5", "testing opacity: calc(2 / 4)");
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verifyComputedStyle("tab-size", "12345", "calc(2 / 4)", "0.5", "testing tab-size: calc(2 / 4)");
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/*
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'tab-size' accepts <number> values.
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*/
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verifyComputedStyle("opacity", "0.9", "calc(2 / 4) * 1px", "0.9", "testing opacity: calc(2 / 4) * 1px");
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verifyComputedStyle("tab-size", "12345", "calc(1 + 1px)", "12345", "testing tab-size: calc(1 + 1px)");
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verifyComputedStyle("tab-size", "12345", "calc(1 + 100%)", "12345", "testing tab-size: calc(1 + 100%)");
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verifyComputedStyle("tab-size", "12345", "calc(100%)", "12345", "testing tab-size: calc(100%)");
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verifyComputedStyle("tab-size", "12345", "calc(10px) bla", "12345", "testing tab-size: calc(10px) bla");
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verifyComputedStyle("tab-size", "12345", "calc(bla) 10px", "12345", "testing tab-size: calc(bla) 10px");
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verifyComputedStyle("tab-size", "initial", "calc(10px)", "10px", "testing tab-size: calc(10px)");
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/* verifyComputedStyle(property_name, initial_value, specified_value, expected_value, description) */
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}
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startTesting();
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</script>
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