Basic sky_tools logs test.

packages/flutter_tools/test/logs_test.dart

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+library stop_test;
+
+import 'package:args/command_runner.dart';
+import 'package:mockito/mockito.dart';
+import 'package:sky_tools/src/application_package.dart';
+import 'package:sky_tools/src/logs.dart';
+import 'package:test/test.dart';
+
+import 'src/common.dart';
+
+main() => defineTests();
+
+defineTests() {
+  group('logs', () {
+    test('returns 0 when no device is connected', () {
+      ApplicationPackageFactory.srcPath = './';
+      ApplicationPackageFactory.setBuildPath(
+          BuildType.prebuilt, BuildPlatform.android, './');
+
+      MockAndroidDevice android = new MockAndroidDevice();
+      when(android.isConnected()).thenReturn(false);
+      LogsCommand command = new LogsCommand(android);
+
+      CommandRunner runner = new CommandRunner('test_flutter', '')
+        ..addCommand(command);
+      runner.run(['logs']).then((int code) => expect(code, equals(0)));
+    });
+  });
+}