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<!DOCTYPE HTML>
<html>
<!--
Test that css-logic calculates CSS specificity properly
-->
<meta charset="utf-8">
<title>Test css-logic specificity</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<body style="background:blue;">
<script>
"use strict";
window.onload = function() {
const {require} = ChromeUtils.importESModule("resource://devtools/shared/loader/Loader.sys.mjs");
const {CssLogic, CssSelector} = require("devtools/server/actors/inspector/css-logic");
const TEST_DATA = [
{text: "*", expected: 0},
{text: "LI", expected: 1},
{text: "UL LI", expected: 2},
{text: "UL OL + LI", expected: 3},
{text: "H1 + [REL=\"up\"]", expected: 1025},
{text: "UL OL LI.red", expected: 1027},
{text: "LI.red.level", expected: 2049},
{text: ".red .level", expected: 2048},
{text: "#x34y", expected: 1048576},
{text: "#s12:not(FOO)", expected: 1048577},
{text: "body#home div#warning p.message", expected: 2098179},
{text: "* body#home div#warning p.message", expected: 2098179},
{text: "#footer :not(nav) li", expected: 1048578},
{text: "bar:nth-child(n)", expected: 1025},
{text: "li::marker", expected: 2},
{text: "a:hover", expected: 1025},
];
function createDocument() {
let text = TEST_DATA.map(i=>i.text).join(",");
text = '<style>' + text + " {color:red;}</style>";
document.body.innerHTML = text;
}
function getExpectedSpecificity(selectorText) {
return TEST_DATA.filter(i => i.text === selectorText)[0].expected;
}
SimpleTest.waitForExplicitFinish();
createDocument();
const cssLogic = new CssLogic();
cssLogic.highlight(document.body);
// There could be more stylesheets due to e.g, accessiblecaret, so find the
// right one.
info(`Sheets: ${cssLogic.sheets.map(s => s.href).join(", ")}`);
const cssSheet = cssLogic.sheets.find(s => s.href == location.href);
const cssRule = cssSheet.domSheet.cssRules[0];
const selectors = CssLogic.getSelectors(cssRule);
is(selectors.length, TEST_DATA.length, "Should be the right rule");
info("Iterating over the test selectors: " + selectors.join(", "));
for (let i = 0; i < selectors.length; i++) {
const selectorText = selectors[i];
info("Testing selector " + selectorText);
const selector = new CssSelector(cssRule, selectorText, i);
const expected = getExpectedSpecificity(selectorText);
const specificity = selector.cssRule.selectorSpecificityAt(selector.selectorIndex);
is(specificity, expected,
'Selector "' + selectorText + '" has a specificity of ' + expected);
}
info("Testing specificity of element.style");
const colorProp = cssLogic.getPropertyInfo("background");
is(colorProp.matchedSelectors[0].specificity, 0x40000000,
"Element styles have specificity of 0x40000000 (1073741824).");
SimpleTest.finish();
};
</script>
</body>
</html>
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