<!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>";
      // eslint-disable-next-line no-unsanitized/property
      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>
