public void Matches_ChildViewModelPlusOptionalStepWithAnyStepsStep_MacthesPropertyOfChildChildViewModel()
{
var definition = PathDefinition
.Empty
.Append((EmployeeVMDescriptor x) => x.SelectedProject)
.Append(new OptionalStep(new AnyStepsStep <ProjectVMDescriptor>()));
var customerVM = new CustomerVM();
var projectVM = new ProjectVM();
projectVM.SetValue(x => x.SelectedCustomer, customerVM);
var rootVM = new EmployeeVM();
rootVM.SetValue(x => x.SelectedProject, projectVM);
var path = Path
.Empty
.Append(rootVM)
.Append(rootVM.GetValue(x => x.SelectedProject))
.Append(projectVM.GetValue(x => x.SelectedCustomer))
.Append(CustomerVM.ClassDescriptor.Name);
var match = definition.Matches(path);
Assert.IsTrue(match.Success);
}
public void GetDescendants_DesendantCollectionOverSeveralCollectionHierarchies_ReturnsLastCollection()
{
var path = PathDefinition
.Empty
.Append((EmployeeVMDescriptor x) => x.Projects)
.Append((ProjectVMDescriptor x) => x.Customers);
var customer11 = new CustomerVM();
var customer21 = new CustomerVM();
var customer31 = new CustomerVM();
var project1 = new ProjectVM();
project1.GetValue(x => x.Customers).Add(customer11);
var project2 = new ProjectVM();
project2.GetValue(x => x.Customers).Add(customer21);
var project3 = new ProjectVM();
project3.GetValue(x => x.Customers).Add(customer31);
var expectedViewModels = new CustomerVM[] {
customer11,
customer21,
customer31
};
var rootVM = new EmployeeVM();
var projects = rootVM.GetValue(x => x.Projects);
projects.Add(project1);
projects.Add(project2);
projects.Add(project3);
var descenantViewModels = path.GetDescendants(rootVM);
CollectionAssert.AreEqual(expectedViewModels, descenantViewModels);
}
public void GetDescendants_WhenOnlyLoadedIsTrue_DoesNotLoadDescendants()
{
var unloadedProject = new ProjectVM();
var loadedProject = new ProjectVM();
var selectedCustomer = new CustomerVM();
var customerItem = new CustomerVM();
loadedProject.SetValue(x => x.SelectedCustomer, selectedCustomer);
loadedProject.GetValue(x => x.Customers).Add(customerItem);
var rootVM = new EmployeeVM();
var projects = rootVM.GetValue(x => x.Projects);
projects.Add(unloadedProject);
projects.Add(loadedProject);
var path = PathDefinition
.Empty
.Append((EmployeeVMDescriptor x) => x.Projects)
.Append((ProjectVMDescriptor x) => x.SelectedCustomer);
var descenantViewModels = path.GetLoadedDescendants(rootVM);
CollectionAssert.AreEquivalent(new[] { selectedCustomer }, descenantViewModels);
ViewModelAssert.IsNotLoaded(unloadedProject, x => x.SelectedCustomer);
path = PathDefinition
.Empty
.Append((EmployeeVMDescriptor x) => x.Projects)
.Append((ProjectVMDescriptor x) => x.Customers);
descenantViewModels = path.GetLoadedDescendants(rootVM);
CollectionAssert.AreEquivalent(new[] { customerItem }, descenantViewModels);
ViewModelAssert.IsNotLoaded(unloadedProject, x => x.Customers);
}
