Add WPT test for OPFS that CreateWritable fails after remove()

Differential Revision: https://phabricator.services.mozilla.com/D160446

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1797671
gecko-commit: a8fc94c19d5bc9da9d1befb16d11d1218b462331
gecko-reviewers: dom-storage-reviewers, jari

fs/script-tests/FileSystemDirectoryHandle-removeEntry.js

@@ -121,3 +121,15 @@ directory_test(async (t, root) => {
   await dir.removeEntry('file-to-remove');
   assert_array_equals(await getSortedDirectoryEntries(dir), ['file-to-keep']);
 }, 'removeEntry() of a directory while a containing file has an open writable fails');
+
+directory_test(async (t, root) => {
+  const handle =
+      await createFileWithContents(t, 'file-to-remove', '12345', root);
+  await root.removeEntry('file-to-remove');
+
+  await promise_rejects_dom(t, 'NotFoundError', cleanup_writable(t, handle.createWritable({keepExistingData: true})));
+
+  assert_array_equals(
+      await getSortedDirectoryEntries(root),
+      []);
+}, 'createWritable after removeEntry succeeds but doesnt recreate the file');