Allow transformers to exclude and include assets.

sdk/lib/_internal/pub/test/transformer/exclusion/works_on_transformer_group_test.dart

Index: sdk/lib/_internal/pub/test/transformer/exclusion/works_on_transformer_group_test.dart
diff --git a/sdk/lib/_internal/pub/test/transformer/runs_a_transformer_group_test.dart b/sdk/lib/_internal/pub/test/transformer/exclusion/works_on_transformer_group_test.dart
similarity index 53%
copy from sdk/lib/_internal/pub/test/transformer/runs_a_transformer_group_test.dart
copy to sdk/lib/_internal/pub/test/transformer/exclusion/works_on_transformer_group_test.dart
index b0a17ec94c25d8bda1ffaad3c16f5714b0a5ee93..d4164bd10febb5893027cf02ad7812beb3f61947 100644
--- a/sdk/lib/_internal/pub/test/transformer/runs_a_transformer_group_test.dart
+++ b/sdk/lib/_internal/pub/test/transformer/exclusion/works_on_transformer_group_test.dart
@@ -1,12 +1,14 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.file
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS d.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 pub_tests;
 
-import '../descriptor.dart' as d;
-import '../test_pub.dart';
-import '../serve/utils.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../../descriptor.dart' as d;
+import '../../test_pub.dart';
+import '../../serve/utils.dart';
 
 const GROUP = """
 import 'package:barback/barback.dart';
@@ -22,25 +24,36 @@ class RewriteGroup implements TransformerGroup {
 
 main() {
   initConfig();
-  integration("runs a transformer group", () {
+  integration("works on a transformer group", () {
     d.dir(appPath, [
       d.pubspec({
         "name": "myapp",
-        "transformers": ["myapp/src/group"]
+        "transformers": [
+          {
+            "myapp/src/group": {
+              "\$include": ["web/a.txt", "web/b.txt"],
+              "\$exclude": "web/a.txt"
+            }
+          }
+        ]
       }),
       d.dir("lib", [d.dir("src", [
         d.file("transformer.dart", REWRITE_TRANSFORMER),
         d.file("group.dart", GROUP)
       ])]),
       d.dir("web", [
-        d.file("foo.txt", "foo")
+        d.file("a.txt", "a.txt"),
+        d.file("b.txt", "b.txt"),
+        d.file("c.txt", "c.txt")
       ])
     ]).create();
 
     createLockFile('myapp', pkg: ['barback']);
 
     pubServe();
-    requestShouldSucceed("foo.out", "foo.out");
+    requestShould404("a.out");
+    requestShouldSucceed("b.out", "b.txt.out");
+    requestShould404("c.out");
     endPubServe();
   });
 }