public void WhenSettingAPropertyToAnInvalidValue_ThenEntityHasErrors()
{
var testEntity = new TestEntity();
testEntity.SomeValue = 5;
Assert.IsTrue(testEntity.HasErrors);
Assert.IsTrue(testEntity.GetErrors("SomeValue").Cast<object>().Any());
Assert.IsFalse(testEntity.GetErrors("SomeOtherValue").Cast<object>().Any());
}
public void WhenInvokingRaisePropertyChanged_ThenRaisesEVent()
{
var testEntity = new TestEntity();
string notifiedProperty = null;
testEntity.PropertyChanged += (s, a) => notifiedProperty = a.PropertyName;
testEntity.SomeValue = 10;
Assert.AreEqual("SomeValue", notifiedProperty);
}