Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 4 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-variables/variable-invalidation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>Tests css variable invalidation</title>
<meta rel="author" title="Kevin Babbitt">
<meta rel="author" title="Greg Whitworth">
<!-- This is not directly specified in the spec but should work -->
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#test1 {
--var1:red;
}
#test2 {
--var2:red!important;
}
</style>
</head>
<body>
<div id="test1"><div><div><div class="testElem"></div></div></div></div>
<div id="test2"><div><div><div class="testElem"></div></div></div></div>
<div id="test3" style="--var3:red"><div><div><div class="testElem"></div></div></div></div>
<div id="test4" style="--var4:red!important"><div><div><div class="testElem"></div></div></div></div>
<script type="text/javascript">
"use strict";
// This is a helper function to avoid repitition
function testExpectations(testProperty, cssStyle, testElement, testDescription, expectedValue, expectedCssText, expectedPriority, expectedLength, expectedItem0) {
assert_equals(cssStyle.cssText, expectedCssText, "cssText " + testDescription + ".");
assert_equals(cssStyle.getPropertyValue(testProperty), expectedValue, "Value " + testDescription + ".");
assert_equals(cssStyle.getPropertyPriority(testProperty), expectedPriority, "Priority " + testDescription + ".");
assert_equals(cssStyle.length, expectedLength, "style length " + testDescription + ".");
assert_equals(cssStyle.item(0), expectedItem0, "item(0) " + testDescription + ".");
var computedStyle = window.getComputedStyle(testElement);
assert_equals(computedStyle.getPropertyValue(testProperty), expectedValue, "Computed Style value " + testDescription + ".");
}
// This is a boilerplate to build a testcase and then test the expected outcome
function testCase(cssStyle, testProperty, testElement, testImportant) {
var initialCssText = testProperty + (testImportant ? ": red !important;" : ": red;");
testExpectations(testProperty, cssStyle, testElement, "initial", "red", initialCssText, testImportant ? "important" : "", 1, testProperty);
cssStyle.setProperty(testProperty, "blue");
if (!testImportant) {
testExpectations(testProperty, cssStyle, testElement, "after setProperty", "blue", testProperty + ": blue;", "", 1, testProperty);
}
if (testProperty) {
cssStyle.setProperty(testProperty, "pink", 'important');
testExpectations(testProperty, cssStyle, testElement, "after setProperty important", "pink", testProperty + ": pink !important;", "important", 1, testProperty);
}
cssStyle.removeProperty(testProperty);
testExpectations(testProperty, cssStyle, testElement, "after removeProperty", "", "", "", 0, "");
var cssText = testProperty + (testImportant ? ":green!important;" : ":green;");
var expectedCssText = testProperty + (testImportant ? ": green !important;" : ": green;");
cssStyle.cssText = cssText;
testExpectations(testProperty, cssStyle, testElement, "after setting cssText", "green", expectedCssText, testImportant ? "important" : "", 1, testProperty);
}
// The actual tests that utilize the boilerplate & helper methods above
test( function () {
var cssStyle = document.styleSheets[0].cssRules[0].style;
var testProperty = "--var1";
var testElement = document.querySelectorAll("#test1 .testElem")[0];
testCase(cssStyle, testProperty, testElement, false);
}, "css rule test");
test( function () {
var cssStyle = document.styleSheets[0].cssRules[1].style;
var testProperty = "--var2";
var testElement = document.querySelectorAll("#test2 .testElem")[0];
testCase(cssStyle, testProperty, testElement, true);
}, "css rule test important");
test( function () {
var element = document.getElementById("test3");
var cssStyle = element.style;
var testProperty = "--var3";
var testElement = document.querySelectorAll("#test3 .testElem")[0];
testCase(cssStyle, testProperty, testElement, false);
}, "inline style test");
test( function () {
var element = document.getElementById("test4");
var cssStyle = element.style;
var testProperty = "--var4";
var testElement = document.querySelectorAll("#test4 .testElem")[0];
testCase(cssStyle, testProperty, testElement, true);
}, "inline style test important");
</script>
</body>
</html>