Use the new test runner.

test/lish/many_files_test.dart

 // Copyright (c) 2015, 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:convert';
 import 'dart:io';
 import 'dart:math' as math;
 
 import 'package:path/path.dart' as p;
 import 'package:pub/src/exit_codes.dart' as exit_codes;
@@ skipping 11 matching lines @@
 /// than OS X or Linux. We subtract one because Windows counts it as the number
 /// of bytes in a path C string including the terminating NUL but we only count
 /// characters here.
 ///
 /// We use this limit on all platforms for consistency.
 ///
 /// [MAX_PATH]: https://msdn.microsoft.com/en-us/library/windows/desktop/aa383130(v=vs.85).aspx
 const _pathMax = 260 - 1;
 
 main() {
-  initConfig();
-
   integration('archives and uploads a package with more files than can fit on '
       'the command line', () {
     d.validPackage.create();
 
     var argMax;
     if (Platform.isWindows) {
       // On Windows, the maximum argument list length is 8^5 bytes.
       argMax = math.pow(8, 5);
     } else {
       // On POSIX, the maximum argument list length can be retrieved
@@ skipping 45 matching lines @@
       return new shelf.Response.ok(JSON.encode({
         'success': {'message': 'Package test_pkg 1.0.0 uploaded!'}
       }));
     });
 
     pub.stdout.expect(startsWith('Uploading...'));
     pub.stdout.expect('Package test_pkg 1.0.0 uploaded!');
     pub.shouldExit(exit_codes.SUCCESS);
   });
 }