public void BindingBackAssert <TTargetProperty>(
CalcBinding.Binding calcBinding,
INotifyPropertyChanged source, Func <object> sourcePropertyGetter,
FrameworkElement targetObject, DependencyProperty targetProperty,
Action <TTargetProperty> targetPropertySetter,
TTargetProperty targetPropertyValue1, TTargetProperty targetPropertyValue2,
object sourcePropertyValue1, object sourcePropertyValue2)
{
targetObject.DataContext = source;
var bindingExpression = calcBinding.ProvideValue(new ServiceProviderMock(targetObject, targetProperty));
targetObject.SetValue(targetProperty, bindingExpression);
//act
targetPropertySetter(targetPropertyValue1);
//assert
var realSourcePropertyValue1 = sourcePropertyGetter();
Assert.AreEqual(sourcePropertyValue1, realSourcePropertyValue1);
//act
targetPropertySetter(targetPropertyValue2);
//assert
var realSourcePropertyValue2 = sourcePropertyGetter();
Assert.AreEqual(sourcePropertyValue2, realSourcePropertyValue2);
}
public void BindingAssert <TTargetProperty>(
CalcBinding.Binding calcBinding, INotifyPropertyChanged source,
FrameworkElement targetObject, DependencyProperty targetProperty,
Func <TTargetProperty> targetPropertyGetter,
Action sourcePropertySetter1, TTargetProperty targetValue1,
Action sourcePropertySetter2, TTargetProperty targetValue2
)
{
//var test = new ExampleViewModel();
targetObject.DataContext = source;
var bindingExpression = calcBinding.ProvideValue(new ServiceProviderMock(targetObject, targetProperty));
targetObject.SetValue(targetProperty, bindingExpression);
//act
sourcePropertySetter1();
//assert
var realValue1 = targetPropertyGetter();
Assert.AreEqual(targetValue1, realValue1);
//act
sourcePropertySetter2();
//assert
var realValue2 = targetPropertyGetter();
Assert.AreEqual(targetValue2, realValue2);
}
public void DataTriggerTest()
{
var viewModel = new ExampleViewModel()
{
A = 1, B = 1
};
var text = new TextBox
{
DataContext = viewModel
};
var dataTrigger1 = new DataTrigger
{
Value = true
};
dataTrigger1.Setters.Add(new Setter {
Property = TextBox.BackgroundProperty, Value = Brushes.Red
});
dataTrigger1.Setters.Add(new Setter {
Property = TextBox.IsEnabledProperty, Value = true
});
var calcBinding1 = new CalcBinding.Binding("(A+B)>10");
var bindingExpression1 = calcBinding1.ProvideValue(
new ServiceProviderMock(dataTrigger1, typeof(DataTrigger).GetProperty("Binding"), null)
.WithNullXamlSchemaContextProvider()
);
dataTrigger1.Binding = bindingExpression1 as BindingBase;
var dataTrigger2 = new DataTrigger
{
Value = true,
};
dataTrigger2.Setters.Add(new Setter {
Property = TextBox.BackgroundProperty, Value = Brushes.Green
});
dataTrigger2.Setters.Add(new Setter {
Property = TextBox.IsEnabledProperty, Value = false
});
var calcBinding2 = new CalcBinding.Binding("(A+B)<=10");
var bindingExpression2 = calcBinding2.ProvideValue(
new ServiceProviderMock(dataTrigger2, typeof(DataTrigger).GetProperty("Binding"), null)
.WithNullXamlSchemaContextProvider()
);
dataTrigger2.Binding = bindingExpression2 as BindingBase;
var style = new Style();
style.Triggers.Add(dataTrigger1);
style.Triggers.Add(dataTrigger2);
text.Style = style;
// act, assert
viewModel.A = 5;
viewModel.B = 7;
Assert.AreEqual(Brushes.Red, text.Background);
Assert.AreEqual(true, text.IsEnabled);
viewModel.B = 2;
Assert.AreEqual(Brushes.Green, text.Background);
Assert.AreEqual(false, text.IsEnabled);
}
