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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+<!DOCTYPE HTML>
+<html>
+<!--
+Test that css-logic calculates CSS specificity properly
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test css-logic specificity</title>
+ <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+<body style="background:blue;">
+ <script type="application/javascript;version=1.8">
+
+ window.onload = function() {
+ var {utils: Cu, classes: Cc, interfaces: Ci} = Components;
+
+ const {require} = Cu.import("resource://devtools/shared/Loader.jsm", {});
+ const {CssLogic, CssSelector} = require("devtools/server/css-logic");
+ const DOMUtils = Cc["@mozilla.org/inspector/dom-utils;1"]
+ .getService(Ci.inIDOMUtils);
+
+ 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: 257},
+ {text: "UL OL LI.red", expected: 259},
+ {text: "LI.red.level", expected: 513},
+ {text: ".red .level", expected: 512},
+ {text: "#x34y", expected: 65536},
+ {text: "#s12:not(FOO)", expected: 65537},
+ {text: "body#home div#warning p.message", expected: 131331},
+ {text: "* body#home div#warning p.message", expected: 131331},
+ {text: "#footer :not(nav) li", expected: 65538},
+ {text: "bar:nth-child(n)", expected: 257},
+ {text: "li::-moz-list-number", expected: 1},
+ {text: "a:hover", expected: 257}
+ ];
+
+ function createDocument() {
+ let text = TEST_DATA.map(i=>i.text).join(",");
+ text = '<style type="text/css">' + text + " {color:red;}</style>";
+ document.body.innerHTML = text;
+ }
+
+ function getExpectedSpecificity(selectorText) {
+ return TEST_DATA.filter(i => i.text === selectorText)[0].expected;
+ }
+
+ SimpleTest.waitForExplicitFinish();
+
+ createDocument();
+ let cssLogic = new CssLogic(DOMUtils.isInheritedProperty);
+
+ cssLogic.highlight(document.body);
+ let cssSheet = cssLogic.sheets[0];
+ let cssRule = cssSheet.domSheet.cssRules[0];
+ let selectors = CssLogic.getSelectors(cssRule);
+
+ info("Iterating over the test selectors")
+ for (let i = 0; i < selectors.length; i++) {
+ let selectorText = selectors[i];
+ info("Testing selector " + selectorText);
+
+ let selector = new CssSelector(cssRule, selectorText, i);
+ let expected = getExpectedSpecificity(selectorText);
+ let specificity = DOMUtils.getSpecificity(selector.cssRule,
+ selector.selectorIndex)
+ is(specificity, expected,
+ 'Selector "' + selectorText + '" has a specificity of ' + expected);
+ }
+
+ info("Testing specificity of element.style");
+ let colorProp = cssLogic.getPropertyInfo("background");
+ is(colorProp.matchedSelectors[0].specificity, 0x01000000,
+ "Element styles have specificity of 0x01000000 (16777216).");
+
+ SimpleTest.finish();
+ }
+
+ </script>
+</body>
+</html>