public void TestBindTo()
{
IPropertyBinder<ControlTestClass, string> binder = new PropertyBinder<ControlTestClass, string>(
z => z.Text,
(cls, action) => cls.TextChanged += (sender, args) => action());
var instance = new ControlTestClass { Text = "First" };
TestBindableProperty(instance, binder.BindTo(instance));
binder = new PropertyBinder<ControlTestClass, int, string>(
z => z.Number,
(cls, action) => cls.NumberChanged += (sender, args) => action(),
new DataConverter<int, string>(Helper.ToText, Helper.ToInt32));
instance = new ControlTestClass { Number = 1 };
var property = binder.BindTo(instance);
Assert.Equal("First", property.Value);
Assert.Equal(instance.Number.ToText(), property.Value);
instance.Number = 2;
Assert.Equal("Second", property.Value);
property.Value = "Third";
Assert.Equal("Third", instance.Number.ToText());
int numberChangedCount = 0;
int propertyChangedCount = 0;
instance.NumberChanged += (sender, args) => numberChangedCount++;
property.PropertyChanged += (sender, args) =>
{
Assert.Equal("Number", args.PropertyName);
propertyChangedCount++;
};
instance.Number = 4;
Assert.Equal(1, numberChangedCount);
Assert.Equal(1, propertyChangedCount);
property.Value = "Fifth";
Assert.Equal(2, numberChangedCount);
Assert.Equal(2, propertyChangedCount);
}