public void TestGetParentFolder()
{
//Arrange
var parent = new Folder()
{
ID = 6, Name = "Folder6", IsRoot = true, SubFolders = new List <Folder>(), Files = new List <File>()
};
var child = new Folder()
{
ID = 7, Name = "Folder7", ParentID = 6, Parent = parent, IsRoot = false, SubFolders = new List <Folder>(), Files = new List <File>()
};
//Act
parent.SubFolders.Add(child);
_folder.AddFolder(parent);
_folder.AddFolder(child);
//Assert
Assert.AreEqual(parent, _folder.GetParentFolder(child));
}