Handle OAuth2 AuthorizationExceptions in pub.

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 508 matching lines @@
     // that the test framework sees it, then finally call asyncDone so that the
     // test framework knows we're done doing asynchronous stuff.
     var future = _runScheduled(createdSandboxDir, _scheduledOnException)
         .chain((_) => cleanup());
     future.handleException((e) {
       print("Exception while cleaning up: $e");
       print(future.stackTrace);
       registerException(error, future.stackTrace);
       return true;
     });
-    future.then((_) => registerException(error, future.stackTrace));
+    future.then((_) {
+      print("Registering exception");
+      registerException(error, future.stackTrace);
+    });
     return true;
   });
 
   future.chain((_) => cleanup()).then((_) {
     asyncDone();
   });
 }
 
 /// Get the path to the root "util/test/pub" directory containing the pub tests.
 String get testDirectory {
@@ skipping 912 matching lines @@
       });
       return timeout(requestCompleteCompleter.future,
           5000, "waiting for $method $path");
     });
     _handlers.add(handlerCompleter.future);
   }
 
   /// Raises an error complaining of an unexpected request.
   void _awaitHandle(HttpRequest request, HttpResponse response) {
     var future = timeout(new Future.immediate(null).chain((_) {
-      var handlerFuture = _handlers.removeFirst();
-      if (handlerFuture == null) {
+      if (_handlers.isEmpty) {
         fail('Unexpected ${request.method} request to ${request.path}.');
       }
-      return handlerFuture;
+      return _handlers.removeFirst();
     }).transform((handler) {
       handler(request, response);
     }), 5000, "waiting for a handler for ${request.method} ${request.path}");
     expect(future, completes);
   }
 }
 
 /**
  * Takes a simple data structure (composed of [Map]s, [List]s, scalar objects,
  * and [Future]s) and recursively resolves all the [Future]s contained within.
@@ skipping 60 matching lines @@
 /// calling [completion] is unnecessary.
 void expectLater(Future actual, matcher, {String reason,
     FailureHandler failureHandler, bool verbose: false}) {
   _schedule((_) {
     return actual.transform((value) {
       expect(value, matcher, reason: reason, failureHandler: failureHandler,
           verbose: false);
     });
   });
 }