public void Sync_MergeFailure_NoneOfTheOtherGuysFilesMakeItIntoWorkingDirectory()
        {
            using (var bob = new RepositorySetup("bob"))
            {
                bob.ProjectFolderConfig.IncludePatterns.Add("*.txt");
                bob.AddAndCheckinFile("aaa.txt", "apple");
                bob.AddAndCheckinFile("bbb.txt", "bread");
                bob.AddAndCheckinFile("zzz.txt", "zoo");
                using (var sally = new RepositorySetup("sally", bob))
                {
                    bob.AddAndCheckinFile("aaa.txt", "bob-apple");
                    bob.AddAndCheckinFile("bbb.txt", "bob-bread");
                    bob.AddAndCheckinFile("zzz.txt", "bob-zoo");
                   using (new FailureSimulator("TextMerger-bbb.txt"))
                    {
                        sally.AddAndCheckinFile("aaa.txt", "sally-apple");
                        sally.AddAndCheckinFile("bbb.txt", "sally-bread");
                        sally.AddAndCheckinFile("zzz.txt", "sally-zipper");
                        Assert.IsFalse(sally.CheckinAndPullAndMerge(bob).Succeeded);

                       //make sure we ended up on Sally's revision, even though Bob's are newer
                        var currentRevision = sally.Repository.GetRevisionWorkingSetIsBasedOn();
                        Assert.AreEqual("sally", sally.Repository.GetRevision(currentRevision.Number.Hash).UserId);
                        
                       //sally should see no changes, because it should all be rolled back
                        sally.AssertFileContents("aaa.txt", "sally-apple");
                        sally.AssertFileContents("bbb.txt", "sally-bread");
                        sally.AssertFileContents("zzz.txt", "sally-zipper");

//                        sally.ShowInTortoise();
                       sally.AssertHeadCount(2);
                        Assert.IsFalse(sally.GetProgressString().Contains("creates new remote heads"));
                    }
                }
			}
			File.Delete(Path.Combine(Path.GetTempPath(), "TextMerger-bbb.txt"));
        }