Properly include the hosted URL in all IDs.

test/get/hosted/get_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.
 
 import 'package:pub/src/exit_codes.dart' as exit_codes;
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
@@ skipping 11 matching lines @@
   integration('URL encodes the package name', () {
     serveNoPackages();
 
     d.appDir({"bad name!": "1.2.3"}).create();
 
     pubGet(
         error: new RegExp(
           r"Could not find package bad name! at http://localhost:\d+\."),
         exitCode: exit_codes.UNAVAILABLE);
   });
+
+  integration('gets a package from a non-default pub server', () {
+    // Make the default server serve errors. Only the custom server should
+    // be accessed.
+    serveErrors();
+
+    var server = new PackageServer((builder) {
+      builder.serve("foo", "1.2.3");
+    });
+
+    d.appDir({
+      "foo": {
+        "version": "1.2.3",
+        "hosted": {
+          "name": "foo",
+          "url": server.port.then((port) => "http://localhost:$port")
+        }
+      }
+    }).create();
+
+    pubGet();
+
+    d.cacheDir({"foo": "1.2.3"}, port: server.port).validate();
+    d.packagesDir({"foo": "1.2.3"}).validate();
+  });
 }