anchor.diff:  import 'package:flutter_tools/src/compile.dart';
   import 'package:flutter_tools/src/devfs.dart';
   import 'package:flutter_tools/src/vmservice.dart';
  -import 'package:flutter_tools/src/globals.dart' as globals;
   import 'package:json_rpc_2/json_rpc_2.dart' as rpc;
   import 'package:mockito/mockito.dart';
   
  
positive.code: final Map <String, Uri> _packages = <String, Uri>{};
  
  Directory _newTempDir(FileSystem fs) {
    final Directory tempDir = globals.fs.systemTempDirectory.createTempSync('flutter_devfs${_tempDirs.length}_test.');
    _tempDirs.add(tempDir);
    return tempDir;
  }
  
negative.code: 
    setUpAll(() {
      fs = MemoryFileSystem();
      filePath = fs.path.join('lib', 'foo.txt');
    });
  
    group('DevFSContent', () {
  