Get basic Windows stuff working.

utils/tests/pub/test_pub.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Test infrastructure for testing pub. Unlike typical unit tests, most pub
  * tests are integration tests that stage some stuff on the file system, run
  * pub, and then validate the results. This library provides an API to build
  * tests like that.
  */
@@ skipping 236 matching lines @@
     String pathInSandbox(path) => join(getFullPath(sandboxDir), path);
 
     return ensureDir(pathInSandbox(appPath)).chain((_) {
       // Find a dart executable we can use to run pub. Uses the one that the
       // test infrastructure uses. We are not using new Options.executable here
       // because that gets confused if you invoked Dart through a shell script.
       var scriptDir = new File(new Options().script).directorySync().path;
       var platform = Platform.operatingSystem;
       var dartBin = join(scriptDir, '../../../tools/testing/bin/$platform/dart');
 
+      if (platform == 'windows') dartBin = '$dartBin.exe';
+
       // Find the main pub entrypoint.
       var pubPath = fs.joinPaths(scriptDir, '../../pub/pub.dart');
 
       var dartArgs =
         ['--enable-type-checks', '--enable-asserts', pubPath, '--trace'];
       dartArgs.addAll(args);
 
       var environment = new Map.from(Platform.environment);
       environment['PUB_CACHE'] = pathInSandbox(cachePath);
       environment['DART_SDK'] = pathInSandbox(sdkPath);
@@ skipping 539 matching lines @@
 }
 
 /**
  * Schedules a callback to be called after Pub is run with [runPub], even if it
  * fails.
  */
 void _scheduleCleanup(_ScheduledEvent event) {
   if (_scheduledCleanup == null) _scheduledCleanup = [];
   _scheduledCleanup.add(event);
 }