Make integration tests a bit cleaner.

utils/tests/pub/install/git/stay_locked_if_compatible_test.dart

Index: utils/tests/pub/install/git/stay_locked_if_compatible_test.dart
diff --git a/utils/tests/pub/install/git/stay_locked_if_compatible_test.dart b/utils/tests/pub/install/git/stay_locked_if_compatible_test.dart
index 59b4d44f171c07da99b1bd5c3b999d1b28953f81..67bef629fca74fb8fd89bff2c86569e9ba61ee2e 100644
--- a/utils/tests/pub/install/git/stay_locked_if_compatible_test.dart
+++ b/utils/tests/pub/install/git/stay_locked_if_compatible_test.dart
@@ -7,10 +7,9 @@ library pub_tests;
 import 'dart:io';
 
 import '../../test_pub.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
 
 main() {
-  test("doesn't update a locked Git package with a new compatible "
+  integration("doesn't update a locked Git package with a new compatible "
       "constraint", () {
     ensureGit();
 
@@ -45,7 +44,5 @@ main() {
         file('foo.dart', 'main() => "foo 1.0.0";')
       ])
     ]).scheduleValidate();
-
-    run();
   });
 }