public void DiscoverObsoleteProjectFileWorks()
{
var fileSystem = new FileSystemMock();
fileSystem
.AddDirectory(@"d:\foo")
.AddFile(@"bar.txt", "some text content")
.Parent.AddDirectory(@"bar");
Assert.IsFalse(fileSystem.GetFileInfoSnapshot(new FullPath(@"d:\foo\bar2")).Exists);
Assert.IsTrue(fileSystem.GetFileInfoSnapshot(new FullPath(@"d:\foo\bar")).IsDirectory);
Assert.IsTrue(fileSystem.GetFileInfoSnapshot(new FullPath(@"d:\foo\bar.txt")).IsFile);
}