diff --git a/test/data_directory.dart b/test/data_directory.dart
index 15c7705..e2626a5 100644
--- a/test/data_directory.dart
+++ b/test/data_directory.dart
@@ -12,15 +12,36 @@
 ///   run things by default
 library data_directory;
 
-import 'package:dart.testing/google3_test_util.dart' show runfilesDir;
+import 'dart:io';
 import 'package:path/path.dart' as path;
 
 String get dataDirectory {
   return path.join(intlDirectory, datesRelativeToIntl);
 }
 
-// NOTE(tjblasi): Google3-specific code for locating the directory.
-String get intlDirectory =>
-    path.join(runfilesDir, 'google3', 'third_party', 'dart', 'intl');
+/// Returns whether [dir] is the root of the `intl` package. We validate that it
+/// is by looking for a pubspec file with the entry `name: intl`.
+bool _isIntlRoot(String dir) {
+  var file = File(path.join(dir, 'pubspec.yaml'));
+  if (!file.existsSync()) return false;
+  return file.readAsStringSync().contains('name: intl\n');
+}
+
+String get intlDirectory {
+  // Try the current directory.
+  if (_isIntlRoot(Directory.current.path)) return Directory.current.path;
+
+  // Search upwards from the script location.
+  var dir = path.fromUri(Platform.script);
+  var root = path.rootPrefix(dir);
+
+  while (dir != root) {
+    if (_isIntlRoot(dir)) return dir;
+    dir = path.dirname(dir);
+  }
+
+  throw UnsupportedError(
+      'Cannot find the root directory of the `intl` package.');
+}
 
 String get datesRelativeToIntl => path.join('lib', 'src', 'data', 'dates');
diff --git a/test/data_directory_opensource.dart b/test/data_directory_opensource.dart
deleted file mode 100644
index a8d3d4f..0000000
--- a/test/data_directory_opensource.dart
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// @dart=2.9
-
-/// A utility function for test and tools that compensates (at least for very
-/// simple cases) for file-dependent programs being run from different
-/// directories. The important cases are
-///   - running in the directory that contains the test itself, i.e.
-///    test/ or a sub-directory.
-///   - running in root of this package, which is where the editor and bots will
-///   run things by default
-library data_directory;
-
-import 'dart:io';
-import 'package:path/path.dart' as path;
-
-String get dataDirectory {
-  return path.join(intlDirectory, datesRelativeToIntl);
-}
-
-/// Returns whether [dir] is the root of the `intl` package. We validate that it
-/// is by looking for a pubspec file with the entry `name: intl`.
-bool _isIntlRoot(String dir) {
-  var file = File(path.join(dir, 'pubspec.yaml'));
-  if (!file.existsSync()) return false;
-  return file.readAsStringSync().contains('name: intl\n');
-}
-
-String get intlDirectory {
-  String dir;
-  if (Platform.script.scheme == 'file') {
-    dir = path.fromUri(Platform.script);
-  } else {
-    dir = Directory.current.absolute.path;
-  }
-  var root = path.rootPrefix(dir);
-
-  while (dir != root) {
-    if (_isIntlRoot(dir)) return dir;
-    dir = path.dirname(dir);
-  }
-  throw UnsupportedError(
-      'Cannot find the root directory of the `intl` package.');
-}
-
-String get datesRelativeToIntl => path.join('lib', 'src', 'data', 'dates');