Split apart several asynchronous tests to reduce timeouts.

utils/tests/pub/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart

Index: utils/tests/pub/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart
diff --git a/utils/tests/pub/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart b/utils/tests/pub/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..20cb0e53368306cd6b1d9cc493d09bbc4e724d0d
--- /dev/null
+++ b/utils/tests/pub/oauth2/with_a_server_rejected_refresh_token_authenticates_again_test.dart
@@ -0,0 +1,54 @@
+// 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.
+
+import 'dart:io';
+import 'dart:json' as json;
+
+import 'package:scheduled_test/scheduled_test.dart';
+import 'package:scheduled_test/scheduled_server.dart';
+
+import '../../../pub/io.dart';
+import '../../../pub/utils.dart';
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+import 'utils.dart';
+
+main() {
+  // Regression test for issue 8849.
+  integration('with a server-rejected refresh token, authenticates again and '
+      'saves credentials.json', () {
+    d.validPackage.create();
+
+    var server = new ScheduledServer();
+    d.credentialsFile(server, 'access token',
+        refreshToken: 'bad refresh token',
+        expiration: new DateTime.now().subtract(new Duration(hours: 1)))
+        .create();
+
+    var pub = startPublish(server);
+    confirmPublish(pub);
+
+    server.handle('POST', '/token', (request) {
+      return new ByteStream(request).toBytes().then((bytes) {
+        var response = request.response;
+        response.statusCode = 400;
+        response.reasonPhrase = 'Bad request';
+        response.headers.contentType = new ContentType("application", "json");
+        response.write(json.stringify({"error": "invalid_request"}));
+        response.close();
+      });
+    });
+
+    authorizePub(pub, server, 'new access token');
+
+    server.handle('GET', '/packages/versions/new.json', (request) {
+      expect(request.headers.value('authorization'),
+          equals('Bearer new access token'));
+
+      request.response.close();
+    });
+
+    pub.kill();
+  });
+}