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Basilisk-Dev
131 lines
3.8 KiB
HTML
131 lines
3.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Test for Basic CSS Nesting Lowering</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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</head>
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<body>
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<div id="scope" class="scope order">
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<span id="desc" class="desc"></span>
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</div>
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<div id="button" class="button active"></div>
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<pre id="standalone-log"></pre>
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<script>
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"use strict";
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function colorOf(win, element, property) {
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return win.getComputedStyle(element).getPropertyValue(property);
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}
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function appendTestSheet() {
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var style = document.createElement("style");
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style.textContent =
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".scope {\n" +
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" color: rgb(1, 2, 3);\n" +
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" .desc {\n" +
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" color: rgb(4, 5, 6);\n" +
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" }\n" +
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" background-color: rgb(7, 8, 9);\n" +
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"}\n" +
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"\n" +
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".button {\n" +
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" &.active {\n" +
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" color: rgb(10, 11, 12);\n" +
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" }\n" +
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"}\n" +
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"\n" +
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".order {\n" +
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" border-top-style: solid;\n" +
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" @media all {\n" +
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" & {\n" +
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" border-top-color: rgb(13, 14, 15);\n" +
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" }\n" +
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" }\n" +
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" border-right-style: solid;\n" +
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" border-right-color: rgb(16, 17, 18);\n" +
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"}\n";
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document.head.appendChild(style);
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return style;
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}
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function runChecks(style, report) {
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var scope = document.getElementById("scope");
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var desc = document.getElementById("desc");
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var button = document.getElementById("button");
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report(colorOf(window, scope, "color") === "rgb(1, 2, 3)",
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"outer rule declarations should apply",
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colorOf(window, scope, "color"),
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"rgb(1, 2, 3)");
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report(colorOf(window, desc, "color") === "rgb(4, 5, 6)",
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"nested descendant rule should be lowered",
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colorOf(window, desc, "color"),
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"rgb(4, 5, 6)");
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report(colorOf(window, scope, "background-color") === "rgb(7, 8, 9)",
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"declarations after a nested rule should preserve order",
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colorOf(window, scope, "background-color"),
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"rgb(7, 8, 9)");
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report(colorOf(window, button, "color") === "rgb(10, 11, 12)",
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"ampersand selectors should be expanded",
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colorOf(window, button, "color"),
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"rgb(10, 11, 12)");
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report(colorOf(window, scope, "border-top-color") === "rgb(13, 14, 15)",
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"nested group rules should target the parent selector",
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colorOf(window, scope, "border-top-color"),
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"rgb(13, 14, 15)");
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report(colorOf(window, scope, "border-right-color") === "rgb(16, 17, 18)",
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"declarations after nested group rules should still apply",
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colorOf(window, scope, "border-right-color"),
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"rgb(16, 17, 18)");
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report(style.sheet.cssRules.length === 7,
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"lowering should produce flat top-level rules",
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String(style.sheet.cssRules.length),
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"7");
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}
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function runStandalone() {
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var log = document.getElementById("standalone-log");
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var lines = [
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"Standalone mode.",
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"This page only demonstrates nesting if layout.css.nesting.enabled is already true in the browser.",
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""
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];
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var style = appendTestSheet();
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runChecks(style, function(pass, message, actual, expected) {
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lines.push((pass ? "PASS" : "FAIL") + ": " + message);
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if (!pass) {
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lines.push(" expected: " + expected);
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lines.push(" actual: " + actual);
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}
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});
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log.textContent = lines.join("\n");
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}
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function runMochitest() {
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SimpleTest.waitForExplicitFinish();
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SpecialPowers.pushPrefEnv({
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set: [["layout.css.nesting.enabled", true]]
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}, function() {
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var style = appendTestSheet();
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runChecks(style, function(pass, message, actual, expected) {
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is(actual, expected, message);
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});
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SimpleTest.finish();
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});
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}
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if (typeof SimpleTest !== "undefined" && typeof SpecialPowers !== "undefined") {
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runMochitest();
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} else {
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runStandalone();
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}
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</script>
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</body>
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</html>
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