Make pub lish validation gitignore-aware.

test/validator/pubspec_test.dart

+// 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:pub/src/entrypoint.dart';
+import 'package:pub/src/validator.dart';
+import 'package:pub/src/validator/pubspec.dart';
+import 'package:scheduled_test/scheduled_test.dart';
+
+import '../descriptor.dart' as d;
+import '../test_pub.dart';
+import 'utils.dart';
+
+main() {
+  integration('should consider a package valid if it has a pubspec', () {
+    d.validPackage.create();
+
+    expectNoValidationError((entrypoint) => new PubspecValidator(entrypoint));
+  });
+
+  integration('should consider a package invalid if it has a .gitignored '
+      'pubspec', () {
+    var repo = d.git(appPath, [d.file(".gitignore", "pubspec.yaml")]);
+    d.validPackage.create();
+    repo.create();
+
+    expectValidationError((entrypoint) => new PubspecValidator(entrypoint));
+  });
+}