servo/tests/wpt/web-platform-tests/native-file-system/script-tests/FileSystemDirectoryHandle-removeEntry.js

directory_test(async (t, root) => {
  const handle =
      await createFileWithContents(t, 'file-to-remove', '12345', root);
  await createFileWithContents(t, 'file-to-keep', 'abc', root);
  await root.removeEntry('file-to-remove');

  assert_array_equals(await getSortedDirectoryEntries(root), ['file-to-keep']);
  await promise_rejects(t, 'NotFoundError', getFileContents(handle));
}, 'removeEntry() to remove a file');

directory_test(async (t, root) => {
  const handle =
      await createFileWithContents(t, 'file-to-remove', '12345', root);
  await root.removeEntry('file-to-remove');

  await promise_rejects(t, 'NotFoundError', root.removeEntry('file-to-remove'));
}, 'removeEntry() on an already removed file should fail');

directory_test(async (t, root) => {
  const dir = await root.getDirectory('dir-to-remove', {create: true});
  await createFileWithContents(t, 'file-to-keep', 'abc', root);
  await root.removeEntry('dir-to-remove');

  assert_array_equals(await getSortedDirectoryEntries(root), ['file-to-keep']);
  await promise_rejects(t, 'NotFoundError', getSortedDirectoryEntries(dir));
}, 'removeEntry() to remove an empty directory');

directory_test(async (t, root) => {
  const dir = await root.getDirectory('dir-to-remove', {create: true});
  t.add_cleanup(() => root.removeEntry('dir-to-remove', {recursive: true}));
  await createEmptyFile(t, 'file-in-dir', dir);

  await promise_rejects(
      t, 'InvalidModificationError', root.removeEntry('dir-to-remove'));
  assert_array_equals(
      await getSortedDirectoryEntries(root), ['dir-to-remove/']);
  assert_array_equals(await getSortedDirectoryEntries(dir), ['file-in-dir']);
}, 'removeEntry() on a non-empty directory should fail');

directory_test(async (t, root) => {
  const dir = await createDirectory(t, 'dir', root);
  await promise_rejects(t, new TypeError(), dir.removeEntry(''));
}, 'removeEntry() with empty name should fail');

directory_test(async (t, root) => {
  const dir = await createDirectory(t, 'dir', root);
  await promise_rejects(t, new TypeError(), dir.removeEntry(kCurrentDirectory));
}, `removeEntry() with "${kCurrentDirectory}" name should fail`);

directory_test(async (t, root) => {
  const dir = await createDirectory(t, 'dir', root);
  await promise_rejects(t, new TypeError(), dir.removeEntry(kParentDirectory));
}, `removeEntry() with "${kParentDirectory}" name should fail`);

directory_test(async (t, root) => {
  const dir_name = 'dir-name';
  const dir = await createDirectory(t, dir_name, root);

  const file_name = 'file-name';
  await createEmptyFile(t, file_name, dir);

  for (let i = 0; i < kPathSeparators.length; ++i) {
    const path_with_separator = `${dir_name}${kPathSeparators[i]}${file_name}`;
    await promise_rejects(
        t, new TypeError(), root.removeEntry(path_with_separator),
        `removeEntry() must reject names containing "${kPathSeparators[i]}"`);
  }
}, 'removeEntry() with a path separator should fail.');