nodejs
diff --git a/Collapse file
‎test/common/wpt.js‎
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+11-15Lines changed: 11 additions & 15 deletions b/Collapse file
‎test/common/wpt.js‎
Copy file name to clipboardExpand all lines: test/common/wpt.js
+11-15Lines changed: 11 additions & 15 deletions
diff --git a/Collapse file
‎test/common/wpt/worker.js‎
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+12-5Lines changed: 12 additions & 5 deletions b/Collapse file
‎test/common/wpt/worker.js‎
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+12-5Lines changed: 12 additions & 5 deletions
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‎test/fixtures/wpt/FileAPI/Blob-methods-from-detached-frame.html‎
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+59Lines changed: 59 additions & 0 deletions b/Collapse file
‎test/fixtures/wpt/FileAPI/Blob-methods-from-detached-frame.html‎
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+59Lines changed: 59 additions & 0 deletions
@@ -453,14 +453,13 @@ class WPTRunner {
     this.scriptsModifier = modifier;
   }
 
-  fullInitScript(hasSubsetScript, locationSearchString) {
+  fullInitScript(url, metaTitle) {
     let { initScript } = this;
-    if (hasSubsetScript || locationSearchString) {
-      initScript = `${initScript}\n\n//===\nglobalThis.location ||= {};`;
-    }
 
-    if (locationSearchString) {
-      initScript = `${initScript}\n\n//===\nglobalThis.location.search = "${locationSearchString}";`;
+    initScript = `${initScript}\n\n//===\nglobalThis.location = new URL("${url.href}");`;
+
+    if (metaTitle) {
+      initScript = `${initScript}\n\n//===\nglobalThis.META_TITLE = "${metaTitle}";`;
     }
 
     if (this.globalThisInitScripts.length === null) {
@@ -553,13 +552,13 @@ class WPTRunner {
       const relativePath = spec.getRelativePath();
       const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
       const scriptsToRun = [];
-      let hasSubsetScript = false;
+      let needsGc = false;
 
       // Scripts specified with the `// META: script=` header
       if (meta.script) {
         for (const script of meta.script) {
-          if (script === '/common/subset-tests.js' || script === '/common/subset-tests-by-key.js') {
-            hasSubsetScript = true;
+          if (script === '/common/gc.js') {
+            needsGc = true;
           }
           const obj = {
             filename: this.resource.toRealFilePath(relativePath, script),
@@ -592,12 +591,13 @@ class WPTRunner {
             testRelativePath: relativePath,
             wptRunner: __filename,
             wptPath: this.path,
-            initScript: this.fullInitScript(hasSubsetScript, variant),
+            initScript: this.fullInitScript(new URL(`/${relativePath.replace(/\.js$/, '.html')}${variant}`, 'http://wpt'), meta.title),
             harness: {
               code: fs.readFileSync(harnessPath, 'utf8'),
               filename: harnessPath,
             },
             scriptsToRun,
+            needsGc,
           },
         });
         this.workers.set(testFileName, worker);
@@ -749,11 +749,7 @@ class WPTRunner {
    */
   resultCallback(filename, test, reportResult) {
     const status = this.getTestStatus(test.status);
-    const title = this.getTestTitle(filename);
-    if (/^Untitled( \d+)?$/.test(test.name)) {
-      test.name = `${title}${test.name.slice(8)}`;
-    }
-    console.log(`---- ${title} ----`);
+    console.log(`---- ${test.name} ----`);
     if (status !== kPass) {
       this.fail(filename, test, status, reportResult);
     } else {
 
@@ -1,22 +1,29 @@
 'use strict';
 
-const { runInThisContext } = require('vm');
+const { runInNewContext, runInThisContext } = require('vm');
+const { setFlagsFromString } = require('v8');
 const { parentPort, workerData } = require('worker_threads');
 
 const { ResourceLoader } = require(workerData.wptRunner);
 const resource = new ResourceLoader(workerData.wptPath);
 
-global.self = global;
-global.GLOBAL = {
+if (workerData.needsGc) {
+  // See https://github.com/nodejs/node/issues/16595#issuecomment-340288680
+  setFlagsFromString('--expose-gc');
+  globalThis.gc = runInNewContext('gc');
+}
+
+globalThis.self = global;
+globalThis.GLOBAL = {
   isWindow() { return false; },
   isShadowRealm() { return false; },
 };
-global.require = require;
+globalThis.require = require;
 
 // This is a mock, because at the moment fetch is not implemented
 // in Node.js, but some tests and harness depend on this to pull
 // resources.
-global.fetch = function fetch(file) {
+globalThis.fetch = function fetch(file) {
   return resource.read(workerData.testRelativePath, file, true);
 };
 
 
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Blob methods from detached frame work as expected</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<iframe id="emptyDocumentIframe" src="../support/empty-document.html"></iframe>
+
+<script>
+const BlobPrototypeFromDetachedFramePromise = new Promise(resolve => {
+    emptyDocumentIframe.onload = () => {
+        const BlobPrototype = emptyDocumentIframe.contentWindow.Blob.prototype;
+        emptyDocumentIframe.remove();
+        resolve(BlobPrototype);
+    };
+});
+
+const charCodeArrayToString = charCodeArray => Array.from(charCodeArray, c => String.fromCharCode(c)).join("");
+const charCodeBufferToString = charCodeBuffer => charCodeArrayToString(new Uint8Array(charCodeBuffer));
+
+promise_test(async () => {
+    const { slice } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["foobar"]);
+
+    const slicedBlob = slice.call(blob, 1, 3);
+    assert_true(slicedBlob instanceof Blob);
+
+    assert_equals(await slicedBlob.text(), "oo");
+    assert_equals(charCodeBufferToString(await slicedBlob.arrayBuffer()), "oo");
+
+    const reader = slicedBlob.stream().getReader();
+    const { value } = await reader.read();
+    assert_equals(charCodeArrayToString(value), "oo");
+}, "slice()");
+
+promise_test(async () => {
+    const { text } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["foo"]);
+
+    assert_equals(await text.call(blob), "foo");
+}, "text()");
+
+promise_test(async () => {
+    const { arrayBuffer } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["bar"]);
+
+    const charCodeBuffer = await arrayBuffer.call(blob);
+    assert_equals(charCodeBufferToString(charCodeBuffer), "bar");
+}, "arrayBuffer()");
+
+promise_test(async () => {
+    const { stream } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["baz"]);
+
+    const reader = stream.call(blob).getReader();
+    const { value } = await reader.read();
+    assert_equals(charCodeArrayToString(value), "baz");
+}, "stream()");
+</script>