Use ephemeral ports for serving stuff during the pub tests.

utils/tests/pub/pub_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('test_pub.dart');
 #import('../../../pkg/unittest/unittest.dart');
@@ skipping 279 matching lines @@
     dir(packagesPath, [
       dir('foo', [
         file('foo.dart', 'main() => "foo 1";')
       ])
     ]).scheduleValidate();
 
     run();
   });
 
   test('checks out a package from a pub server', () {
-    servePackages("localhost", 3123, [package("foo", "1.2.3")]);
+    servePackages([package("foo", "1.2.3")]);
 
     appDir([dependency("foo", "1.2.3")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp("Dependencies installed!\$"));
 
     cacheDir({"foo": "1.2.3"}).scheduleValidate();
     packagesDir({"foo": "1.2.3"}).scheduleValidate();
 
     run();
   });
 
   test('checks out packages transitively from a pub server', () {
-    servePackages("localhost", 3123, [
+    servePackages([
       package("foo", "1.2.3", [dependency("bar", "2.0.4")]),
       package("bar", "2.0.3"),
       package("bar", "2.0.4"),
       package("bar", "2.0.5")
     ]);
 
     appDir([dependency("foo", "1.2.3")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp("Dependencies installed!\$"));
 
     cacheDir({"foo": "1.2.3", "bar": "2.0.4"}).scheduleValidate();
     packagesDir({"foo": "1.2.3", "bar": "2.0.4"}).scheduleValidate();
 
     run();
   });
 
   test('resolves version constraints from a pub server', () {
-    servePackages("localhost", 3123, [
+    servePackages([
       package("foo", "1.2.3", [dependency("baz", ">=2.0.0")]),
       package("bar", "2.3.4", [dependency("baz", "<3.0.0")]),
       package("baz", "2.0.3"),
       package("baz", "2.0.4"),
       package("baz", "3.0.1")
     ]);
 
     appDir([dependency("foo"), dependency("bar")]).scheduleCreate();
 
     schedulePub(args: ['install'],
@@ skipping 123 matching lines @@
     dir(packagesPath, [
       dir('foo', [
         file('foo.dart', 'main() => "foo 1.0.0";')
       ])
     ]).scheduleValidate();
 
     run();
   });
 
   test('keeps a pub server package locked to the version in the lockfile', () {
-    servePackages("localhost", 3123, [package("foo", "1.0.0")]);
+    servePackages([package("foo", "1.0.0")]);
 
     appDir([dependency("foo")]).scheduleCreate();
 
     // This install should lock the foo dependency to version 1.0.0.
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
 
     // Delete the packages path to simulate a new checkout of the application.
     dir(packagesPath).scheduleDelete();
 
     // Start serving a newer package as well.
-    servePackages("localhost", 3123, [
-      package("foo", "1.0.0"),
-      package("foo", "1.0.1")
-    ]);
+    servePackages([package("foo", "1.0.1")]);
 
     // This install shouldn't update the foo dependency due to the lockfile.
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
 
     run();
   });
 
   test('updates a locked pub server package with a new incompatible '
       'constraint', () {
-    servePackages("localhost", 3123, [package("foo", "1.0.0")]);
+    servePackages([package("foo", "1.0.0")]);
 
     appDir([dependency("foo")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
 
-    servePackages("localhost", 3123, [
-      package("foo", "1.0.0"),
-      package("foo", "1.0.1")
-    ]);
+    servePackages([package("foo", "1.0.1")]);
 
     appDir([dependency("foo", ">1.0.0")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.1"}).scheduleValidate();
 
     run();
   });
 
   test("doesn't update a locked pub server package with a new compatible "
       "constraint", () {
-    servePackages("localhost", 3123, [package("foo", "1.0.0")]);
+    servePackages([package("foo", "1.0.0")]);
 
     appDir([dependency("foo")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
 
-    servePackages("localhost", 3123, [
-      package("foo", "1.0.0"),
-      package("foo", "1.0.1")
-    ]);
+    servePackages([package("foo", "1.0.1")]);
 
     appDir([dependency("foo", ">=1.0.0")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
 
     run();
   });
 
   test("unlocks dependencies if necessary to ensure that a new dependency "
       "is satisfied", () {
-    servePackages("localhost", 3123, [
+    servePackages([
       package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
       package("bar", "1.0.0", [dependency("baz", "<2.0.0")]),
       package("baz", "1.0.0", [dependency("qux", "<2.0.0")]),
       package("qux", "1.0.0")
     ]);
 
     appDir([dependency("foo")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({
       "foo": "1.0.0",
       "bar": "1.0.0",
       "baz": "1.0.0",
       "qux": "1.0.0"
     }).scheduleValidate();
 
-    servePackages("localhost", 3123, [
-      package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
+    servePackages([
       package("foo", "2.0.0", [dependency("bar", "<3.0.0")]),
-
-      package("bar", "1.0.0", [dependency("baz", "<2.0.0")]),
       package("bar", "2.0.0", [dependency("baz", "<3.0.0")]),
-
-      package("baz", "1.0.0", [dependency("qux", "<2.0.0")]),
       package("baz", "2.0.0", [dependency("qux", "<3.0.0")]),
-
-      package("qux", "1.0.0"),
       package("qux", "2.0.0"),
-
       package("newdep", "2.0.0", [dependency("baz", ">=1.5.0")])
     ]);
 
     appDir([dependency("foo"), dependency("newdep")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({
       "foo": "2.0.0",
       "bar": "2.0.0",
       "baz": "2.0.0",
       "qux": "1.0.0",
       "newdep": "2.0.0"
     }).scheduleValidate();
 
     run();
   });
 
   test("doesn't unlock dependencies if a new dependency is already "
       "satisfied", () {
-    servePackages("localhost", 3123, [
+    servePackages([
       package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
       package("bar", "1.0.0", [dependency("baz", "<2.0.0")]),
       package("baz", "1.0.0")
     ]);
 
     appDir([dependency("foo")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({
       "foo": "1.0.0",
       "bar": "1.0.0",
       "baz": "1.0.0"
     }).scheduleValidate();
 
-    servePackages("localhost", 3123, [
-      package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
+    servePackages([
       package("foo", "2.0.0", [dependency("bar", "<3.0.0")]),
-
-      package("bar", "1.0.0", [dependency("baz", "<2.0.0")]),
       package("bar", "2.0.0", [dependency("baz", "<3.0.0")]),
-
-      package("baz", "1.0.0"),
       package("baz", "2.0.0"),
-
       package("newdep", "2.0.0", [dependency("baz", ">=1.0.0")])
     ]);
 
     appDir([dependency("foo"), dependency("newdep")]).scheduleCreate();
 
     schedulePub(args: ['install'],
         output: const RegExp(@"Dependencies installed!$"));
 
     packagesDir({
       "foo": "1.0.0",
@@ skipping 152 matching lines @@
         dir('foo-dep', [
           file('foo-dep.dart', 'main() => "foo-dep";')
         ]),
       ]).scheduleValidate();
 
       run();
     });
 
     test("updates one locked pub server package's dependencies if it's "
         "necessary", () {
-      servePackages("localhost", 3123, [
+      servePackages([
         package("foo", "1.0.0", [dependency("foo-dep")]),
         package("foo-dep", "1.0.0")
       ]);
 
       appDir([dependency("foo")]).scheduleCreate();
 
       schedulePub(args: ['install'],
           output: const RegExp(@"Dependencies installed!$"));
 
       packagesDir({
         "foo": "1.0.0",
         "foo-dep": "1.0.0"
       }).scheduleValidate();
 
-      servePackages("localhost", 3123, [
+      servePackages([
         package("foo", "2.0.0", [dependency("foo-dep", ">1.0.0")]),
         package("foo-dep", "2.0.0")
       ]);
 
       schedulePub(args: ['update', 'foo'],
           output: const RegExp(@"Dependencies updated!$"));
 
       packagesDir({
         "foo": "2.0.0",
         "foo-dep": "2.0.0"
       }).scheduleValidate();
 
       run();
     });
 
     test("updates a locked package's dependers in order to get it to max "
         "version", () {
-      servePackages("localhost", 3123, [
+      servePackages([
         package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
         package("bar", "1.0.0")
       ]);
 
       appDir([dependency("foo"), dependency("bar")]).scheduleCreate();
 
       schedulePub(args: ['install'],
           output: const RegExp(@"Dependencies installed!$"));
 
       packagesDir({
         "foo": "1.0.0",
         "bar": "1.0.0"
       }).scheduleValidate();
 
-      servePackages("localhost", 3123, [
-        package("foo", "1.0.0", [dependency("bar", "<2.0.0")]),
+      servePackages([
         package("foo", "2.0.0", [dependency("bar", "<3.0.0")]),
-
-        package("bar", "1.0.0"),
         package("bar", "2.0.0")
       ]);
 
       schedulePub(args: ['update', 'bar'],
           output: const RegExp(@"Dependencies updated!$"));
 
       packagesDir({
         "foo": "2.0.0",
         "bar": "2.0.0"
       }).scheduleValidate();
 
       run();
     });
   });
 }
 
 versionCommand() {
   test('displays the current version', () =>
     runPub(args: ['version'], output: VERSION_STRING));
 }