Update pub to new expect API.

utils/tests/pub/lock_file_test.dart

 // Copyright (c) 2012, 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.
 
 #library('lock_file_test');
 
 #import('../../../lib/unittest/unittest.dart');
 #import('../../pub/lock_file.dart');
 #import('../../pub/package.dart');
 #import('../../pub/source.dart');
@@ skipping 15 matching lines @@
 
 main() {
   var sources = new SourceRegistry();
   var mockSource = new MockSource();
   sources.register(mockSource);
 
   group('LockFile', () {
     group('parse()', () {
       test('returns an empty lockfile if the contents are empty', () {
         var lockFile = new LockFile.parse('', sources);
-        expect(lockFile.packages.length).equals(0);

[gram, 2012/06/06 22:48:29]

isZero?

+        expect(lockFile.packages.length, equals(0));
       });
 
       test('returns an empty lockfile if the contents are whitespace', () {
         var lockFile = new LockFile.parse('  \t\n  ', sources);
-        expect(lockFile.packages.length).equals(0);
+        expect(lockFile.packages.length, equals(0));
       });
 
       test('parses a series of package descriptions', () {
         var lockFile = new LockFile.parse('''
 packages:
   bar:
     version: 1.2.3
     source: mock
     description: bar desc
   foo:
     version: 2.3.4
     source: mock
     description: foo desc
 ''', sources);
 
-        expect(lockFile.packages.length).equals(2);
+        expect(lockFile.packages.length, equals(2));
 
         var bar = lockFile.packages['bar'];
-        expect(bar.name).equals('bar');
-        expect(bar.version).equals(new Version(1, 2, 3));
-        expect(bar.source).equals(mockSource);
-        expect(bar.description).equals('bar desc');
+        expect(bar.name, equals('bar'));
+        expect(bar.version, equals(new Version(1, 2, 3)));
+        expect(bar.source, equals(mockSource));
+        expect(bar.description, equals('bar desc'));
 
         var foo = lockFile.packages['foo'];
-        expect(foo.name).equals('foo');
-        expect(foo.version).equals(new Version(2, 3, 4));
-        expect(foo.source).equals(mockSource);
-        expect(foo.description).equals('foo desc');
+        expect(foo.name, equals('foo'));
+        expect(foo.version, equals(new Version(2, 3, 4)));
+        expect(foo.source, equals(mockSource));
+        expect(foo.description, equals('foo desc'));
       });
 
       test("throws if the version is missing", () {
         throwsBadFormat(() {
           new LockFile.parse('''
 packages:
   foo:
     source: mock
     description: foo desc
 ''', sources);
@@ skipping 82 matching lines @@
     description: foo desc
 ''', sources);
       });
     });
   });
 }
 
 throwsBadFormat(function) {
   expectThrow(function, (e) => e is FormatException);
 }