public void TestGoToPreviousDirectoryCommand()
{
Assert.True(_tabViewModel.GoToPreviousDirectoryCommand.CanExecute(null));
_tabViewModel.GoToPreviousDirectoryCommand.Execute(null);
Assert.Equal(PrevDirectory, _tabViewModel.CurrentDirectory);
Assert.Equal(0, _tabViewModel.GetState().CurrentPositionInHistory);
_autoMocker
.GetMock <IFilePanelDirectoryObserver>()
.VerifySet(m => m.CurrentDirectory = PrevDirectory);
}