Install barback from a hosted source in all tests.

test/run/resource_test.dart

 // 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.
 
 import 'dart:async';
 
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
@@ skipping 78 matching lines @@
     var pub = pubRun(args: ["bin/script"]);
 
     // TODO(nweiz): Enable this when sdk#23990 is fixed.
     // pub.stdout.expect(p.toUri(p.join(sandboxDir, "foo/lib/resource.txt")));
 
     pub.stdout.expect("hello!");
     pub.shouldExit(0);
   });
 
   integration('the spawned application can load a transformed resource', () {
+    serveBarback();
+
     d.dir(appPath, [
       d.pubspec({
         "name": "myapp",
-        "transformers": ["myapp/src/transformer"]
+        "transformers": ["myapp/src/transformer"],
+        "dependencies": {"barback": "any"}
       }),
       d.dir("lib", [
         d.file("resource.in", "hello!"),
         d.dir("src", [
           d.file("transformer.dart", TRANSFORMER)
         ])
       ]),
       d.dir("bin", [
         d.file("script.dart", """
 main() async {
   var resource = new Resource("package:myapp/resource.txt");
 
   // TODO(nweiz): Enable this when sdk#23990 is fixed.
   // print(resource.uri);
 
   print(await resource.readAsString());
 }
 """)
       ])
     ]).create();
 
-    createLockFile('myapp', pkg: ['barback']);
-
+    pubGet();
     var pub = pubRun(args: ["bin/script"]);
 
     // TODO(nweiz): Enable this when sdk#23990 is fixed.
     // pub.stdout.expect(p.toUri(p.join(sandboxDir, "myapp/lib/resource.txt")));
 
     pub.stdout.expect("hello!");
     pub.shouldExit(0);
   });
 
   integration('a snapshotted application can load a resource', () {
@@ skipping 27 matching lines @@
 
     var pub = pubRun(args: ["foo:script"]);
 
     // TODO(nweiz): Enable this when sdk#23990 is fixed.
     // pub.stdout.expect(p.toUri(p.join(sandboxDir, "foo/lib/resource.txt")));
 
     pub.stdout.expect("hello!");
     pub.shouldExit(0);
   });
 }