public void ModelChangesFlowToProperties()
{
// Test ViewModel returns current value from model
Email em = new Email { Address = "EMAIL" };
EmailViewModel vm = new EmailViewModel(em);
em.Address = "NEW_EMAIL";
Assert.AreEqual("NEW_EMAIL", vm.Address, "Address property is not fetching the value from the model.");
}
/// <summary>
/// 初始化 EmailViewModel 类的新实例。
/// </summary>
/// <param name="detail">此 ViewModel 基于的基础电子邮件</param>
public EmailViewModel(Email detail)
{
if (detail == null)
{
throw new ArgumentNullException("detail");
}
this.email = detail;
}
public void PropertyGetAndSet()
{
// Test initial properties are surfaced in ViewModel
Email em = new Email { Address = "EMAIL" };
EmailViewModel vm = new EmailViewModel(em);
Assert.AreEqual(em, vm.Model, "Bound object property did not return object from model.");
Assert.AreEqual(em.ValidUsageValues, vm.ValidUsageValues, "ValidUsageValues property did not return value from model.");
Assert.AreEqual("EMAIL", vm.Address, "Address property did not return value from model.");
// Test changing properties updates Model and raises PropertyChanged
string lastProperty;
vm.PropertyChanged += (sender, e) => { lastProperty = e.PropertyName; };
lastProperty = null;
vm.Address = "NEW_EMAIL";
Assert.AreEqual("Address", lastProperty, "Setting Address property did not raise correct PropertyChanged event.");
Assert.AreEqual("NEW_EMAIL", em.Address, "Setting Address property did not update model.");
}
public void BuildViewModel()
{
Phone p = new Phone();
Email e = new Email();
Address a = new Address();
var pvm = ContactDetailViewModel.BuildViewModel(p);
Assert.IsInstanceOfType(pvm, typeof(PhoneViewModel), "Factory method created wrong ViewModel type.");
Assert.AreEqual(p, pvm.Model, "Underlying model object on ViewModel is not correct.");
var evm = ContactDetailViewModel.BuildViewModel(e);
Assert.IsInstanceOfType(evm, typeof(EmailViewModel), "Factory method created wrong ViewModel type.");
Assert.AreEqual(e, evm.Model, "Underlying model object on ViewModel is not correct.");
var avm = ContactDetailViewModel.BuildViewModel(a);
Assert.IsInstanceOfType(avm, typeof(AddressViewModel), "Factory method created wrong ViewModel type.");
Assert.AreEqual(a, avm.Model, "Underlying model object on ViewModel is not correct.");
}
public void PropertyGetAndSet()
{
// 测试初始属性显示在 ViewModel 中
Email em = new Email { Address = "EMAIL" };
EmailViewModel vm = new EmailViewModel(em);
Assert.AreEqual(em, vm.Model, "Bound object property did not return object from model.");
Assert.AreEqual(em.ValidUsageValues, vm.ValidUsageValues, "ValidUsageValues property did not return value from model.");
Assert.AreEqual("EMAIL", vm.Address, "Address property did not return value from model.");
// 更改属性的测试将更新模型并引发 PropertyChanged
string lastProperty;
vm.PropertyChanged += (sender, e) => { lastProperty = e.PropertyName; };
lastProperty = null;
vm.Address = "NEW_EMAIL";
Assert.AreEqual("Address", lastProperty, "Setting Address property did not raise correct PropertyChanged event.");
Assert.AreEqual("NEW_EMAIL", em.Address, "Setting Address property did not update model.");
}
public void AddContactDetailToEmployeeOutsideUnitOfWork()
{
using (FakeEmployeeContext ctx = new FakeEmployeeContext())
{
UnitOfWork unit = new UnitOfWork(ctx);
Employee emp = new Employee();
ContactDetail detail = new Email();
try
{
unit.AddContactDetail(emp, detail);
Assert.Fail("Adding a contact detail to an employee outside the Unit of Work did not throw.");
}
catch (InvalidOperationException ex)
{
Assert.AreEqual("The supplied Employee is not part of this Unit of Work.", ex.Message);
}
}
}