public void Initialize()
{
_testModel1 = new TestModel();
_testModel2 = new TestModel();
_propertyChangedBehavior = new PropertyChangedBehavior();
_component = new TestableBehaviorComponent(_propertyChangedBehavior)
{
PropertyChanged = () => _eventCount++,
};
_component.TestModel1 = _testModel1;
// simulate initializing by blazor
_propertyChangedBehavior.Component = _component;
_propertyChangedBehavior.OnInitialized();
_propertyChangedBehavior.OnParametersSet();
}