Move pub over to using the pub.dartlang.org API v2.

sdk/lib/_internal/pub/test/hosted/version_negotiation_test.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.
+
+library pub_tests;
+
+import 'dart:io';
+
+import 'package:scheduled_test/scheduled_server.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+
+main() {
+  initConfig();
+
+  forBothPubInstallAndUpdate((command) {
+    integration('sends the correct Accept header', () {
+      var server = new ScheduledServer();
+
+      d.appDir([{
+        "hosted": {
+          "name": "foo",
+          "url": server.url.then((url) => url.toString())
+        }
+      }]).create();
+
+      var pub = startPub(args: [command.name]);
+
+      server.handle('GET', '/api/packages/foo', (request) {
+        expect(request.headers['Accept'], ['application/vnd.pub.v2+json']);
+      });
+
+      pub.kill();
+    });
+  });
+
+  forBothPubInstallAndUpdate((command) {

[Bob Nystrom, 2013/06/04 20:21:41]

Other tests just wrap all of the integration() calls in a single
forBothPubInstallAndUpdate.

[nweiz, 2013/06/04 21:04:17]

Done.

+    integration('prints a user-friendly error if the version is out-of-date',

[Bob Nystrom, 2013/06/04 20:21:41]

"user-friendly" -> "friendly", just to get rid of that wrapped "() {" :)

[nweiz, 2013/06/04 21:04:17]

Done.

+        () {
+      var server = new ScheduledServer();
+
+      d.appDir([{
+        "hosted": {
+          "name": "foo",
+          "url": server.url.then((url) => url.toString())
+        }
+      }]).create();
+
+      var pub = startPub(args: [command.name]);
+
+      server.handle('GET', '/api/packages/foo', (request) {
+        request.response.statusCode = 406;
+        request.response.close();
+      });
+
+      // TODO(nweiz): this shouldn't request the versions twice (issue 11077).
+      server.handle('GET', '/api/packages/foo', (request) {
+        request.response.statusCode = 406;
+        request.response.close();
+      });
+
+      pub.shouldExit(1);
+
+      expect(pub.remainingStderr(), completion(equals(
+          "Pub 0.1.2+3 is incompatible with the current version of "
+              "pub.dartlang.org.\n"

[Bob Nystrom, 2013/06/04 20:21:41]

Shouldn't it use the actual server URL here?

[nweiz, 2013/06/04 21:04:17]

Done.

+          "Upgrade pub to the latest version and try again.")));
+    });
+  });
+}