Move pub into sdk/lib/_internal.

utils/tests/pub/validator/lib_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:pathos/path.dart' as path;
-import 'package:scheduled_test/scheduled_test.dart';
-
-import '../../../pub/entrypoint.dart';
-import '../../../pub/io.dart';
-import '../../../pub/validator.dart';
-import '../../../pub/validator/lib.dart';
-import '../descriptor.dart' as d;
-import '../test_pub.dart';
-import 'utils.dart';
-
-Validator lib(Entrypoint entrypoint) => new LibValidator(entrypoint);
-
-main() {
-  initConfig();
-
-  group('should consider a package valid if it', () {
-    setUp(d.validPackage.create);
-
-    integration('looks normal', () => expectNoValidationError(lib));
-
-    integration('has a non-Dart file in lib', () {
-      d.dir(appPath, [
-        d.libPubspec("test_pkg", "1.0.0"),
-        d.dir("lib", [
-          d.file("thing.txt", "woo hoo")
-        ])
-      ]).create();
-      expectNoValidationError(lib);
-    });
-  });
-
-  group('should consider a package invalid if it', () {
-    setUp(d.validPackage.create);
-
-    integration('has no lib directory', () {
-      schedule(() => deleteEntry(path.join(sandboxDir, appPath, "lib")));
-      expectValidationError(lib);
-    });
-
-    integration('has an empty lib directory', () {
-      schedule(() =>
-          deleteEntry(path.join(sandboxDir, appPath, "lib", "test_pkg.dart")));
-      expectValidationError(lib);
-    });
-
-    integration('has a lib directory containing only src', () {
-      schedule(() =>
-          deleteEntry(path.join(sandboxDir, appPath, "lib", "test_pkg.dart")));
-      d.dir(appPath, [
-        d.dir("lib", [
-          d.dir("src", [d.file("test_pkg.dart", "int i = 0;")])
-        ])
-      ]).create();
-      expectValidationError(lib);
-    });
-  });
-}