Make integration tests a bit cleaner.

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

Index: utils/tests/pub/install/hosted/unlock_if_incompatible_test.dart
diff --git a/utils/tests/pub/install/hosted/unlock_if_incompatible_test.dart b/utils/tests/pub/install/hosted/unlock_if_incompatible_test.dart
index 89ca81f33a131781cb829741c234a7642b6b92da..13a69203dac9d405da80ffaf6c496efd1e5d8182 100644
--- a/utils/tests/pub/install/hosted/unlock_if_incompatible_test.dart
+++ b/utils/tests/pub/install/hosted/unlock_if_incompatible_test.dart
@@ -7,10 +7,9 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test('updates a locked pub server package with a new incompatible '
+  integration('updates a locked pub server package with a new incompatible '
       'constraint', () {
     servePackages([package("foo", "1.0.0")]);
 
@@ -29,7 +28,5 @@ main() {
         output: new RegExp(r"Dependencies installed!$"));
 
     packagesDir({"foo": "1.0.1"}).scheduleValidate();
-
-    run();
   });
 }