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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:27 +0000
commit40a355a42d4a9444dc753c04c6608dade2f06a23 (patch)
tree871fc667d2de662f171103ce5ec067014ef85e61 /testing/web-platform/tests/dom/nodes/insertion-removing-steps/Node-appendChild-script-and-default-style-meta-from-fragment.tentative.html
parentAdding upstream version 124.0.1. (diff)
downloadfirefox-40a355a42d4a9444dc753c04c6608dade2f06a23.tar.xz
firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.zip
Adding upstream version 125.0.1.upstream/125.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+++ b/testing/web-platform/tests/dom/nodes/insertion-removing-steps/Node-appendChild-script-and-default-style-meta-from-fragment.tentative.html
@@ -0,0 +1,35 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Node.appendChild: inserting script and default-style meta from a fragment</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<link rel="alternate stylesheet" title="alternative" href="data:text/css,%23div{display:none}">
+<div id="div">hello</div>
+<script>
+let scriptRan = false;
+let computedStyleDuringInsertion = null;
+test(() => {
+ const div = document.getElementById("div");
+ const meta = document.createElement("meta");
+ meta.httpEquiv = "default-style";
+ meta.content = "alternative";
+ const script = document.createElement("script");
+ script.textContent = `
+ computedStyleDuringInsertion = getComputedStyle(div).display;
+ scriptRan = true;
+ `;
+ const df = document.createDocumentFragment();
+ df.appendChild(script);
+ df.appendChild(meta);
+ assert_equals(getComputedStyle(div).display, "block", "div has block display");
+ assert_false(scriptRan, "script has not run before insertion");
+ document.head.appendChild(df);
+ assert_true(scriptRan, "script has run after insertion");
+ assert_equals(computedStyleDuringInsertion, "none",
+ "display: none; style was applied during DOM insertion, before " +
+ "later-inserted script runs");
+ assert_equals(getComputedStyle(div).display, "none",
+ "style remains display: none; after insertion");
+}, "Inserting <meta> that uses alternate stylesheets, applies the style " +
+ "during DOM insertion, and before script runs as a result of any atomic insertions");
+</script>