public void RelationshipEditModel_commit_notifies()
{
// ARRANGE
var entity1 = new EntityViewModel(new Entity());
var entity2 = new EntityViewModel(new Entity());
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To));
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
// ACT
EditModelCommitted result = null;
var committedNotification = new Action <EditModelCommitted>(n => result = n);
Messenger.Default.Register <EditModelCommitted>(this, committedNotification);
editModel.CommitCommand.Execute(null);
// ASSERT
Assert.NotNull(result);
Assert.Equal(typeof(RelationshipViewModel), result.ViewModel.GetType());
Assert.Equal(viewModel, result.TryGetViewModel <RelationshipViewModel>().Item2);
}
public void RelationshipEditModel_delays_changes_at_ViewModel()
{
// ARRANGE
var entity1 = new EntityViewModel(new Entity());
var entity2 = new EntityViewModel(new Entity());
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To));
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
// ACT
editModel.Name = "changed";
editModel.From = entity1;
editModel.To = entity2;
// ASSERT
Assert.Equal("changed", editModel.Name);
Assert.Equal("r", viewModel.Name);
Assert.Equal("r", model.Name);
Assert.NotEqual(editModel.From.Model, viewModel.From.Model);
Assert.NotEqual(editModel.To.Model, viewModel.To.Model);
}
public void RelationshipEditModel_rejects_duplicate_Tags()
{
// ARRANGE
var tagModel = new Tag();
var model = new Relationship("r", new Entity(), new Entity(), tagModel);
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To), tagModel.ToViewModel());
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
// ACT
var result = editModel.AssignTagCommand.CanExecute(new TagViewModel(tagModel));
// ASSERT
Assert.False(result);
}
public void RelationshipEditModel_mirrors_ViewModel()
{
// ARRANGE
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To), model.Tags.Single().ToViewModel());
// ACT
var result = new RelationshipEditModel(viewModel, delegate { }, delegate { });
// ASSERT
Assert.Equal("r", result.Name);
Assert.Equal(viewModel.From.Model, result.From.Model);
Assert.Equal(viewModel.To.Model, result.To.Model);
Assert.Equal(viewModel.Tags.Single().Tag.Model, result.Tags.Single().ViewModel.Tag.Model);
}
public void RelationshipEditModel_delays_removing_Tag_at_ViewModel()
{
// ARRANGE
var tagViewModel = new TagViewModel(new Tag("t2"));
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To), model.Tags.Single().ToViewModel());
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
// ACT
editModel.RemoveTagCommand.Execute(editModel.Tags.Single());
// ASSERT
Assert.Empty(editModel.Tags);
Assert.Single(viewModel.Tags);
Assert.Single(model.Tags);
}
public void RelationshipEditModel_reverts_removed_Tag_from_ViewModel()
{
// ARRANGE
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To), model.Tags.Single().ToViewModel());
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
editModel.RemoveTagCommand.Execute(editModel.Tags.Single());
// ACT
editModel.RollbackCommand.Execute(null);
editModel.CommitCommand.Execute(null);
// ASSERT
Assert.Single(editModel.Tags);
Assert.Single(viewModel.Tags);
Assert.Single(model.Tags);
}
public void RelationshipEditModel_commits_added_Tag_to_ViewModel()
{
// ARRANGE
var tagViewModel = new TagViewModel(new Tag("t2"));
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To), model.Tags.Single().ToViewModel());
var editModel = new RelationshipEditModel(viewModel, delegate { }, delegate { });
editModel.AssignTagCommand.Execute(tagViewModel);
// ACT
editModel.CommitCommand.Execute(null);
// ASSERT
Assert.Equal(2, editModel.Tags.Count());
Assert.Equal(2, viewModel.Tags.Count());
Assert.Equal(2, model.Tags.Count());
}
public void RelationshipEditModel_commits_changes_to_ViewModel()
{
// ARRANGE
var entity1 = new EntityViewModel(new Entity());
var entity2 = new EntityViewModel(new Entity());
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To));
Relationship committed = null;
var commitCB = new Action <Relationship>(r => committed = r);
Relationship reverted = null;
var revertCB = new Action <Relationship>(r => reverted = r);
var editModel = new RelationshipEditModel(viewModel, commitCB, revertCB);
editModel.Name = "changed";
editModel.From = entity1;
editModel.To = entity2;
// ACT
editModel.CommitCommand.Execute(null);
// ASSERT
Assert.Equal(model, committed);
Assert.Null(reverted);
Assert.Equal("changed", editModel.Name);
Assert.Equal("changed", viewModel.Name);
Assert.Equal("changed", model.Name);
Assert.Equal(entity1.Model, viewModel.From.Model);
Assert.Equal(entity1.Model, model.From);
Assert.Equal(entity2.Model, viewModel.To.Model);
Assert.Equal(entity2.Model, model.To);
}
public void RelationshipEditModel_cant_commit_with_a_null_entity()
{
// ARRANGE
var entity1 = new EntityViewModel(new Entity());
var entity2 = new EntityViewModel(new Entity());
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To));
Relationship reverted = null;
var revertCB = new Action <Relationship>(r => reverted = r);
var editModel = new RelationshipEditModel(viewModel, delegate { }, revertCB);
editModel.To = null;
// ACT
var result = editModel.CommitCommand.CanExecute(null);
// ASSERT
Assert.False(result);
}
public void RelationshipEditModel_revert_changes_from_ViewModel()
{
// ARRANGE
var entity1 = new EntityViewModel(new Entity());
var entity2 = new EntityViewModel(new Entity());
var model = new Relationship("r", new Entity(), new Entity(), new Tag());
var viewModel = new RelationshipViewModel(model, new EntityViewModel(model.From), new EntityViewModel(model.To));
Relationship reverted = null;
var revertCB = new Action <Relationship>(r => reverted = r);
var editModel = new RelationshipEditModel(viewModel, delegate { }, revertCB);
editModel.Name = "changed";
editModel.From = entity1;
editModel.To = entity2;
// ACT
editModel.RollbackCommand.Execute(null);
editModel.CommitCommand.Execute(null);
// ASSERT
Assert.Equal(model, reverted);
Assert.Equal("r", editModel.Name);
Assert.Equal("r", viewModel.Name);
Assert.Equal("r", model.Name);
Assert.Equal(model.From, editModel.From.Model);
Assert.Equal(model.From, viewModel.From.Model);
Assert.Equal(model.To, editModel.To.Model);
Assert.Equal(model.To, viewModel.To.Model);
}