Make "pub update PACKAGE" update a specific package.

utils/tests/pub/pub_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('pub_tests');
 
 #import('dart:io');
 
 #import('test_pub.dart');
 #import('../../../lib/unittest/unittest.dart');
@@ skipping 907 matching lines @@
       dir('foo', [
         file('foo.dart', 'main() => "foo 2";')
       ]),
       dir('bar', [
         file('bar.dart', 'main() => "bar 2";')
       ])
     ]).scheduleValidate();
 
     run();
   });
+
+  group("with an argument", () {
+    test("updates one locked Git package but no others", () {
+      ensureGit();
+
+      git('foo.git', [
+        file('foo.dart', 'main() => "foo";')
+      ]).scheduleCreate();
+
+      git('bar.git', [
+        file('bar.dart', 'main() => "bar";')
+      ]).scheduleCreate();
+
+      dir(appPath, [
+        file('pubspec.yaml', '''
+dependencies:
+  foo:
+    git: ../foo.git
+  bar:
+    git: ../foo.git
+''')
+      ]).scheduleCreate();
+
+      schedulePub(args: ['install'],
+          output: const RegExp(@"Dependencies installed!$"));
+
+      dir(packagesPath, [
+        dir('foo', [
+          file('foo.dart', 'main() => "foo";')
+        ]),
+        dir('bar', [
+          file('bar.dart', 'main() => "bar";')
+        ])
+      ]).scheduleValidate();
+
+      git('foo.git', [
+        file('foo.dart', 'main() => "foo 2";')
+      ]).scheduleCommit();
+
+      git('bar.git', [
+        file('bar.dart', 'main() => "bar 2";')
+      ]).scheduleCommit();
+
+      schedulePub(args: ['update foo'],
+          output: const RegExp(@"Dependencies updated!$"));
+
+      dir(packagesPath, [
+        dir('foo', [
+          file('foo.dart', 'main() => "foo 2";')
+        ]),
+        dir('bar', [
+          file('bar.dart', 'main() => "bar";')
+        ])
+      ]).scheduleValidate();
+
+      run();
+    });
+
+    test("updates one locked Git package's dependencies", () {
+      ensureGit();
+
+      git('foo.git', [
+        file('foo.dart', 'main() => "foo";'),
+        file('pubspec.yaml', '''
+dependencies:
+  foo-dep:
+    git: ../foo-dep.git
+''')
+      ]).scheduleCreate();
+
+      git('foo-dep.git', [
+        file('foo-dep.dart', 'main() => "foo-dep";')
+      ]).scheduleCreate();
+
+      git('bar.git', [
+        file('bar.dart', 'main() => "bar";'),
+        file('pubspec.yaml', '''
+dependencies:
+  bar-dep:
+    git: ../bar-dep.git
+''')
+      ]).scheduleCreate();
+
+      git('bar-dep.git', [
+        file('bar-dep.dart', 'main() => "bar-dep";')
+      ]).scheduleCreate();
+
+      dir(appPath, [
+        file('pubspec.yaml', '''
+dependencies:
+  foo:
+    git: ../foo.git
+  bar:
+    git: ../foo.git
+''')
+      ]).scheduleCreate();
+
+      schedulePub(args: ['install'],
+          output: const RegExp(@"Dependencies installed!$"));
+
+      dir(packagesPath, [
+        dir('foo', [
+          file('foo.dart', 'main() => "foo";'),
+          file('pubspec.yaml', '''
+dependencies:
+  foo-dep:
+    git: ../foo-dep.git
+''')
+        ]),
+        dir('foo-dep', [
+          file('foo-dep.dart', 'main() => "foo-dep";')
+        ]),
+        dir('bar', [
+          file('bar.dart', 'main() => "bar";'),
+          file('pubspec.yaml', '''
+dependencies:
+  bar-dep:
+    git: ../bar-dep.git
+''')
+        ]),
+        dir('bar-dep', [
+          file('bar-dep.dart', 'main() => "bar-dep";')
+        ])
+      ]).scheduleValidate();
+
+      git('foo-dep.git', [
+        file('foo-dep.dart', 'main() => "foo-dep 2";')
+      ]).scheduleCommit();
+
+      git('bar-dep.git', [
+        file('bar-dep.dart', 'main() => "bar-dep 2";')
+      ]).scheduleCommit();
+
+      schedulePub(args: ['update foo'],
+          output: const RegExp(@"Dependencies updated!$"));
+
+      dir(packagesPath, [
+        dir('foo', [
+          file('foo.dart', 'main() => "foo";'),
+          file('pubspec.yaml', '''
+dependencies:
+  foo-dep:
+    git: ../foo-dep.git
+''')
+        ]),
+        dir('foo-dep', [
+          file('foo-dep.dart', 'main() => "foo-dep 2";')
+        ]),
+        dir('bar', [
+          file('bar.dart', 'main() => "bar";'),
+          file('pubspec.yaml', '''
+dependencies:
+  bar-dep:
+    git: ../bar-dep.git
+''')
+        ]),
+        dir('bar-dep', [
+          file('bar-dep.dart', 'main() => "bar-dep";')
+        ])
+      ]).scheduleValidate();
+
+      run();
+    });
+  });
 }
 
 versionCommand() {
   test('displays the current version', () =>
     runPub(args: ['version'], output: VERSION_STRING));
 }