fix #607, add support for package config file

test/worker/worker_test.dart

 // Copyright (c) 2016, 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 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:bazel_worker/bazel_worker.dart';
 // TODO(jakemac): Remove once this is a part of the testing library.
@@ skipping 135 matching lines @@
         helloJS.path,
         helloDart.path,
       ]);
       expect(result.exitCode, EXIT_CODE_OK);
       expect(result.stdout, isEmpty);
       expect(result.stderr, isEmpty);
       expect(helloJS.existsSync(), isTrue);
     });
   });
 
+  group('package config', () {
+    final greetingDart = new File('test/worker/greeting.dart').absolute;
+    final helloDart = new File('test/worker/hello.dart').absolute;
+    final packageConfig = new File('test/worker/package_config').absolute;
+
+    final greetingJS = new File('test/worker/greeting.js').absolute;
+    final greetingSummary = new File('test/worker/greeting.sum').absolute;
+    final helloJS = new File('test/worker/hello_world.js').absolute;
+
+    setUp(() {
+      greetingDart.writeAsStringSync('String greeting = "hello";');
+      helloDart.writeAsStringSync('import "package:greet/greeting.dart";'
+          'main() => print(greeting);');
+      packageConfig.writeAsStringSync(
+          'greet:${new Directory('test/worker').absolute.uri}');
+    });
+
+    tearDown(() {
+      if (greetingDart.existsSync()) greetingDart.deleteSync();
+      if (helloDart.existsSync()) helloDart.deleteSync();
+      if (packageConfig.existsSync()) packageConfig.deleteSync();
+      if (greetingJS.existsSync()) greetingJS.deleteSync();
+      if (greetingSummary.existsSync()) greetingSummary.deleteSync();
+      if (helloJS.existsSync()) helloJS.deleteSync();
+    });
+
+    test('can resolve package imports', () {
+      var result = Process.runSync('dart', [
+        'bin/dartdevc.dart',
+        '--no-source-map',
+        '-o',
+        greetingJS.path,
+        '--packages',
+        packageConfig.path,
+        'package:greet/greeting.dart',
+      ]);
+      expect(result.stdout, isEmpty);
+      expect(result.stderr, isEmpty);
+      expect(result.exitCode, EXIT_CODE_OK);
+      expect(greetingJS.existsSync(), isTrue);
+      expect(greetingSummary.existsSync(), isTrue);
+
+      result = Process.runSync('dart', [
+        'bin/dartdevc.dart',
+        '--no-source-map',
+        '--no-summarize',
+        '-s',
+        greetingSummary.path,
+        '-o',
+        helloJS.path,
+        helloDart.path,
+      ]);
+      expect(result.stdout, isEmpty);
+      expect(result.stderr, isEmpty);
+      expect(result.exitCode, EXIT_CODE_OK);
+      expect(helloJS.existsSync(), isTrue);
+    });
+  });
+
   group('Error handling', () {
     final badFileDart = new File('test/worker/bad.dart').absolute;
     final badFileJs = new File('test/worker/bad.js').absolute;
 
     tearDown(() {
       if (badFileDart.existsSync()) badFileDart.deleteSync();
       if (badFileJs.existsSync()) badFileJs.deleteSync();
     });
 
     test('incorrect usage', () {
@@ skipping 99 matching lines @@
 Future<WorkResponse> _readResponse(MessageGrouper messageGrouper) async {
   var buffer = (await messageGrouper.next) as List<int>;
   try {
     return new WorkResponse.fromBuffer(buffer);
   } catch (_) {
     var bufferAsString =
         buffer == null ? '' : 'String: ${UTF8.decode(buffer)}\n';
     throw 'Failed to parse response:\nbytes: $buffer\n$bufferAsString';
   }
 }