First stab at "pub run" command.

sdk/lib/_internal/pub/test/run/runs_transformer_in_entrypoint_test.dart

Index: sdk/lib/_internal/pub/test/run/runs_transformer_in_entrypoint_test.dart
diff --git a/sdk/lib/_internal/pub/test/transformer/runs_a_local_transform_on_the_application_package_test.dart b/sdk/lib/_internal/pub/test/run/runs_transformer_in_entrypoint_test.dart
similarity index 57%
copy from sdk/lib/_internal/pub/test/transformer/runs_a_local_transform_on_the_application_package_test.dart
copy to sdk/lib/_internal/pub/test/run/runs_transformer_in_entrypoint_test.dart
index 6412284d146d04346ca2300fb276040f61b78911..a8fdf08488a293de9c4616fdf8671d239c147ee6 100644
--- a/sdk/lib/_internal/pub/test/transformer/runs_a_local_transform_on_the_application_package_test.dart
+++ b/sdk/lib/_internal/pub/test/run/runs_transformer_in_entrypoint_test.dart
@@ -1,35 +1,39 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.file
+// Copyright (c) 2014, 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 pub_tests;
-
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
 
+const SCRIPT = """
+const TOKEN = "hi";
+main() {
+  print(TOKEN);
+}
+""";
+
 main() {
   initConfig();
   withBarbackVersions("any", () {
-    integration("runs a local transform on the application package", () {
+    integration('runs a Dart application in the entrypoint package', () {

[nweiz, 2014/05/29 19:30:09]

Make the description match the filename.

[Bob Nystrom, 2014/05/30 18:17:47]

Done.

       d.dir(appPath, [
         d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
         d.dir("lib", [d.dir("src", [
-          d.file("transformer.dart", REWRITE_TRANSFORMER)
+          d.file("transformer.dart", dartTransformer("transformed"))
         ])]),
-        d.dir("web", [
-          d.file("foo.txt", "foo")
+        d.dir("bin", [
+          d.file("hi.dart", SCRIPT)
         ])
       ]).create();
 
       createLockFile('myapp', pkg: ['barback']);
 
-      pubServe();
-      requestShouldSucceed("foo.out", "foo.out");
-      endPubServe();
+      schedulePub(args: ["run", "hi"],
+          output: "(hi, transformed)");
     });
   });
 }