Make integration tests a bit cleaner.

utils/tests/pub/install/hosted/stay_locked_test.dart

Index: utils/tests/pub/install/hosted/stay_locked_test.dart
diff --git a/utils/tests/pub/install/hosted/stay_locked_test.dart b/utils/tests/pub/install/hosted/stay_locked_test.dart
index 316333caa72e6736cd52cecdbf80e7d63dc64a6b..5bd5ec2fa29a97c6a0ae489231088a03760a5ae2 100644
--- a/utils/tests/pub/install/hosted/stay_locked_test.dart
+++ b/utils/tests/pub/install/hosted/stay_locked_test.dart
@@ -7,10 +7,10 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test('keeps a pub server package locked to the version in the lockfile', () {
+  integration('keeps a pub server package locked to the version in the '
+      'lockfile', () {
     servePackages([package("foo", "1.0.0")]);
 
     appDir([dependency("foo")]).scheduleCreate();
@@ -32,7 +32,5 @@ main() {
         output: new RegExp(r"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.0"}).scheduleValidate();
-
-    run();
   });
 }