Remove barback from the repo.

pkg/barback/test/transformer_test.dart

-// Copyright (c) 2013, 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.
-
-library barback.test.transformer_test;
-
-import 'dart:async';
-
-import 'package:barback/barback.dart';
-import 'package:barback/src/utils.dart';
-import 'package:unittest/unittest.dart';
-
-import 'utils.dart';
-
-main() {
-  initConfig();
-
-  group("isPrimary", () {
-    test("defaults to allowedExtensions", () {
-      var transformer = new ExtensionTransformer(".txt .bin");
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.txt")), isTrue);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.bin")), isTrue);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.nottxt")), isFalse);
-    });
-
-    test("supports multi-level extensions with allowedExtensions", () {
-      var transformer = new ExtensionTransformer(".dart.js");
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.dart.js")), isTrue);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.js")), isFalse);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.dart")), isFalse);
-    });
-
-    test("throws an error for extensions without periods", () {
-      expect(() => new ExtensionTransformer("dart"), throwsFormatException);
-    });
-
-    test("allows all files if allowedExtensions is not overridden", () {
-      var transformer = new MockTransformer();
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.txt")), isTrue);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "foo.bin")), isTrue);
-
-      expect(transformer.isPrimary(new AssetId("pkg", "anything")), isTrue);
-    });
-  });
-}
-
-class MockTransformer extends Transformer {
-  MockTransformer();
-
-  Future apply(Transform transform) => new Future.value();
-}
-
-class ExtensionTransformer extends Transformer {
-  final String allowedExtensions;
-
-  ExtensionTransformer(this.allowedExtensions);
-
-  Future apply(Transform transform) => new Future.value();
-}