More fixing tests to make bots happy.

test/command_line_test.dart

 // Copyright (c) 2014, 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 dart_style.test.command_line;
 
 import 'dart:convert';
 
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/descriptor.dart' as d;
 import 'package:scheduled_test/scheduled_test.dart';
+import 'package:scheduled_test/scheduled_stream.dart';
 
 import 'utils.dart';
 
 void main() {
   setUpTestSuite();
 
   test("Exits with 0 on success.", () {
     d.dir("code", [
       d.file("a.dart", unformattedSource)
     ]).create();
@@ skipping 63 matching lines @@
 
   group("--dry-run", () {
     test("prints names of files that would change.", () {
       d.dir("code", [
         d.file("a_bad.dart", unformattedSource),
         d.file("b_good.dart", formattedSource),
         d.file("c_bad.dart", unformattedSource),
         d.file("d_good.dart", formattedSource)
       ]).create();
 
+      var aBad = p.join("code", "a_bad.dart");
+      var cBad = p.join("code", "c_bad.dart");
+
       var process = runFormatterOnDir(["--dry-run"]);
-      process.stdout.expect(p.join("code", "a_bad.dart"));
-      process.stdout.expect(p.join("code", "c_bad.dart"));
+
+      // The order isn't specified.
+      process.stdout.expect(either(aBad, cBad));
+      process.stdout.expect(either(aBad, cBad));
       process.shouldExit();
     });
 
     test("does not modify files.", () {
       d.dir("code", [
         d.file("a.dart", unformattedSource)
       ]).create();
 
       var process = runFormatterOnDir(["--dry-run"]);
       process.stdout.expect(p.join("code", "a.dart"));
@@ skipping 39 matching lines @@
       var process = runFormatter();
       process.writeLine(unformattedSource);
       process.closeStdin();
 
       // No trailing newline at the end.
       process.stdout.expect(formattedSource.trimRight());
       process.shouldExit();
     });
   });
 }