Split up some slow pub tests and mark some scheduled_test tests as slow.

utils/tests/pub/validator/directory_test.dart

Index: utils/tests/pub/validator/directory_test.dart
diff --git a/utils/tests/pub/validator/directory_test.dart b/utils/tests/pub/validator/directory_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..987a7d42c451d83b78e864a4c34e7c49ed6538da
--- /dev/null
+++ b/utils/tests/pub/validator/directory_test.dart
@@ -0,0 +1,46 @@
+// Copyright (c) 2013, 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:pathos/path.dart' as path;
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../../../pub/entrypoint.dart';
+import '../../../pub/validator.dart';
+import '../../../pub/validator/directory.dart';
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+import 'utils.dart';
+
+Validator directory(Entrypoint entrypoint) =>
+  new DirectoryValidator(entrypoint);
+
+main() {
+  initConfig();
+
+  group('should consider a package valid if it', () {
+    setUp(d.validPackage.create);
+
+    integration('looks normal', () => expectNoValidationError(directory));
+
+    integration('has a nested directory named "tools"', () {
+      d.dir(appPath, [
+        d.dir("foo", [d.dir("tools")])
+      ]).create();
+      expectNoValidationError(directory);
+    });
+  });
+
+  group('should consider a package invalid if it has a top-level directory '
+      'named', () {
+    setUp(d.validPackage.create);
+
+    var names = ["tools", "tests", "docs", "examples", "sample", "samples"];
+    for (var name in names) {
+      integration('"$name"', () {
+        d.dir(appPath, [d.dir(name)]).create();
+        expectValidationWarning(directory);
+      });
+    }
+  });
+}