public void INotifyPropertyChanged_ChangeValueOfUpdateProperty_ChangedEventCalled()
{
var notifier = new NotifiesOfPropertyChanges();
var called = false;
notifier.PropertyChanged += (s, e) => called = true;
notifier.UpdatableIntProperty = NotifiesOfPropertyChanges.InitialUpdatableIntPropertyValue + 1;
Assert.True(called);
}
public void INotifyPropertyChanged_DoNotChangeValueOfAssignProperty_ChangedEventNotCalled()
{
var notifier = new NotifiesOfPropertyChanges();
var called = false;
notifier.PropertyChanged += (s, e) => called = true;
notifier.AssignProperty = NotifiesOfPropertyChanges.InitialAssignPropertyValue;
Assert.False(called);
}
public void INotifyPropertyChanged_DoNotChangeValueOfPreUpdateActionProperty_ChangedEventNotCalled()
{
var notifier = new NotifiesOfPropertyChanges();
Assert.Equal(NotifiesOfPropertyChanges.InitialExecutedPreUpdateActionValue, notifier.ExecutedPreUpdateAction);
var called = false;
notifier.PropertyChanged += (s, e) => called = true;
notifier.PreUpdateActionProperty = NotifiesOfPropertyChanges.InitialPreUpdateActionPropertyValue;
Assert.False(called);
Assert.Equal(NotifiesOfPropertyChanges.InitialExecutedPreUpdateActionValue, notifier.ExecutedPreUpdateAction);
}
public void INotifyPropertyChanged_ChangeValueOfPostUpdateProperty_ChangedEventCalledAndPostUpdateActionExecuted()
{
var notifier = new NotifiesOfPropertyChanges();
Assert.Equal(NotifiesOfPropertyChanges.InitialExecutedPostUpdateActionValue, notifier.ExecutedPostUpdateAction);
var called = false;
notifier.PropertyChanged += (s, e) => called = true;
notifier.PostUpdateActionProperty = NotifiesOfPropertyChanges.InitialPostUpdateActionPropertyValue + 1;
Assert.True(called);
Assert.Equal(NotifiesOfPropertyChanges.InitialPostUpdateActionPropertyValue + 1, notifier.ExecutedPostUpdateAction);
}
public void INotifyPropertyChanged_DoNotChangeValueOfPostAssignProperty_ChangedEventAndPostAssignActionNotCalled()
{
var notifier = new NotifiesOfPropertyChanges();
Assert.False(notifier.ExecutedPostAssignAction);
var called = false;
notifier.PropertyChanged += (s, e) => called = true;
notifier.PostAssignActionProperty = NotifiesOfPropertyChanges.InitialPostAssignActionPropertyValue;
Assert.False(called);
Assert.False(notifier.ExecutedPostAssignAction);
}
public void INotifyPropertyChanged_ChangeValueOfAssignProperty_ChangedEventCalledAndValueChanged()
{
var notifier = new NotifiesOfPropertyChanges();
var called = 0;
notifier.PropertyChanged += (s, e) => ++ called;
notifier.AssignProperty = NotifiesOfPropertyChanges.InitialAssignPropertyValue + 1;
notifier.ChangeMe = null;
notifier.ChangeMe = "I'm baaaack!";
Assert.Equal(3, called);
Assert.Equal(NotifiesOfPropertyChanges.InitialAssignPropertyValue + 1, notifier.AssignProperty);
}
public void INotifyPropertyChanged_RaisePropertyChanges_PropertyChangeEventsFire()
{
var notifier = new NotifiesOfPropertyChanges();
var update1 = false;
var update2 = false;
var update3 = false;
var update4 = false;
notifier.PropertyChanged += (s, e) =>
{
Assert.Equal("UpdatableIntProperty", e.PropertyName);
switch (notifier.UpdatableIntProperty)
{
case NotifiesOfPropertyChanges.InitialUpdatableIntPropertyValue + 1:
update1 = true;
break;
case NotifiesOfPropertyChanges.InitialUpdatableIntPropertyValue + 2:
update2 = true;
break;
case NotifiesOfPropertyChanges.InitialUpdatableIntPropertyValue + 3:
update3 = true;
break;
case NotifiesOfPropertyChanges.InitialUpdatableIntPropertyValue + 4:
update4 = true;
break;
default:
Assert.True(false, "Unexpected value for notifier.UpdatableIntProperty: " + notifier.UpdatableIntProperty);
break;
}
};
var postRaiseEvent = false;
notifier.RaisePropertyChangedEventsForUpdatableIntProperty((_, v) => postRaiseEvent = true);
Assert.True(update1);
Assert.True(update2);
Assert.True(update3);
Assert.True(update4);
Assert.True(postRaiseEvent);
}
