Change the URL-space exposed by the browser server.

test/runner/loader_test.dart

 // Copyright (c) 2015, 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.
 
 @TestOn("vm")
 
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 import 'package:test/src/backend/state.dart';
@@ skipping 15 matching lines @@
 
 void main() {
   test("success", () {});
   test("failure", () => throw new TestFailure('oh no'));
   test("error", () => throw 'oh no');
 }
 """;
 
 void main() {
   setUp(() {
+    _sandbox = createTempDir();
     _loader = new Loader([TestPlatform.vm],
+        root: _sandbox,
         packageRoot: p.join(packageDir, 'packages'));
-    _sandbox = createTempDir();
   });
 
   tearDown(() {
     new Directory(_sandbox).deleteSync(recursive: true);
     return _loader.close();
   });
 
   group(".loadFile()", () {
     var suite;
     setUp(() {
@@ skipping 30 matching lines @@
 
       return liveTest.run().whenComplete(() => liveTest.close());
     });
 
     test("can load and run a failing test", () {
       var liveTest = suite.tests[1].load(suite);
       expectSingleFailure(liveTest);
       return liveTest.run().whenComplete(() => liveTest.close());
     });
 
     test("throws a nice error if the package root doesn't exist", () {

[kevmoo, 2015/04/11 01:22:25]

This times out for me on mac

using bleeding edge SDK

-      var loader = new Loader([TestPlatform.vm]);
+      var loader = new Loader([TestPlatform.vm], root: _sandbox);
       expect(
           loader.loadFile(p.join(_sandbox, 'a_test.dart')).first
               .whenComplete(loader.close),
           throwsA(isLoadException(
               "Directory ${p.join(_sandbox, 'packages')} does not exist.")));
     });
   });
 
   group(".loadDir()", () {
     test("ignores non-Dart files", () {
@@ skipping 39 matching lines @@
 
       test("can run tests in those suites", () {
         var suite = suites.firstWhere((suite) => suite.path.contains("a_test"));
         var liveTest = suite.tests[1].load(suite);
         expectSingleFailure(liveTest);
         return liveTest.run().whenComplete(() => liveTest.close());
       });
     });
   });
 }