public void RegisteredPreInterceptorGetsCalled()
{
var wasCalled = false;
NotifyPropertyChangedCore.RegisterPreInterceptor((sender, e) => wasCalled = true);
try {
var unitUnderTest = new NotificationOnlyDummy();
unitUnderTest.NotificationOnlyProperty = 42;
Assert.IsTrue(wasCalled);
}
finally {
NotifyPropertyChangedCore.ClearInterceptors();
}
}
public void PlainPropertyIsMaxXXXTimesFasterThanNotificationOnlyPropertyWithoutHandler()
{
var plain = new NotifyPropertyChangedDummy();
var dummy = new NotificationOnlyDummy();
int count = 0;
var actual = Measure.ExecutionTimeFactor(
() => plain.PlainProperty = count++,
() => dummy.NotificationOnlyProperty = count++
);
var maximumFactor = 7.5d;
actual.Factor.AssertNear(maximumFactor, 2);
}
public void NotificationOnlyPropertyWithEmptyHandlerIsNearlyAsFastAsNotificationOnlyPropertyWithoutHandler()
{
var withoutHandler = new NotificationOnlyDummy();
var withHandler = new NotificationOnlyDummy();
withHandler.PropertyChanged += (sender, e) => {
;
};
int count = 0;
var actual = Measure.ExecutionTimeFactor(
() => withoutHandler.NotificationOnlyProperty = count++,
() => withHandler.NotificationOnlyProperty = count++
);
var maximumFactor = 1d;
actual.Factor.AssertNear(maximumFactor, 0.2);
}
public void StaticPreInterceptorsAreCalledBeforeInstancePreInterceptors()
{
var wasCalled = false;
NotifyPropertyChangedCore.RegisterPreInterceptor((sender, e) => wasCalled = true);
try {
var unitUnderTest = new NotificationOnlyDummy();
var interceptable = (IPropertyInterceptor)unitUnderTest;
var staticWasCalledBeforeInstance = false;
interceptable.PreSet += (sender, e) => staticWasCalledBeforeInstance = wasCalled;
unitUnderTest.NotificationOnlyProperty = 42;
Assert.IsTrue(staticWasCalledBeforeInstance);
}
finally {
NotifyPropertyChangedCore.ClearInterceptors();
}
}
