private static IValueAdapter CreateTargetAdapter(DataGridColumn column, DependencyProperty storedProperty)
{
var propertyType = storedProperty.PropertyType;
var propertyAdapter = new DependencyPropertyAdapter(column, storedProperty);
return(WrapInTypeConverterIfNecessary(propertyAdapter, propertyType));
}
public void ShouldSetValue()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
adapter.SetValue(5);
Assert.AreEqual(5, entity.Sample);
}
public void ShouldGiveNewValueToValueChangedCallback()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
object value = null;
adapter.ValueChangedCallback = newValue => value = newValue;
entity.Sample = 5;
Assert.AreEqual(5, value);
}
public void ShouldNotifyAboutValueChanges()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
var callbackCallCount = 0;
adapter.ValueChangedCallback = newValue => ++ callbackCallCount;
entity.Sample = 3;
Assert.AreEqual(1, callbackCallCount);
}
public void ShouldGetValue()
{
var entity = new Entity {
Sample = 5
};
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
var value = adapter.GetValue();
Assert.AreEqual(5, value);
}
public void ShouldGetValueFromAttachedProperty()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Other.AttachedProperty);
Other.SetAttached(entity, 5);
var value = adapter.GetValue();
Assert.AreEqual(5, value);
}
public void ShouldNotCallNotifyValueChangedCallbackWhenValueChangesAfterBeingDisposed()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
var callbackCallCount = 0;
adapter.ValueChangedCallback = newValue => ++ callbackCallCount;
adapter.Dispose();
entity.Sample = 3;
Assert.AreEqual(0, callbackCallCount);
}
public void ShouldNotNotifyOldValueChangedCallbackWhenValueHasChangedAndNewIsSet()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
var callbackCallCount = 0;
adapter.ValueChangedCallback = newValue => ++ callbackCallCount;
entity.Sample = 3;
adapter.ValueChangedCallback = newValue => { };
entity.Sample = 4;
Assert.AreEqual(1, callbackCallCount);
}
public void ShouldNotCallValueChangedCallbackWhenSettingValue()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
bool callbackCalled = false;
adapter.ValueChangedCallback = newValue => { callbackCalled = true; };
adapter.SetValue(5);
Assert.IsFalse(callbackCalled);
}
public void ShouldNotFailWhenSettingValueAndValueChangedCallbackIsNotSet()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
try
{
entity.Sample = 2;
}
catch
{
Assert.Fail();
}
}
public void ShouldDoNothingWhenSettingValueToReadOnlyProperty()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleReadOnlyProperty);
try
{
adapter.SetValue(5);
}
catch
{
Assert.Fail();
}
}
public void ShouldDoNothingAfterValueChangedCallbackIsSetToNullWhenValueChanges()
{
var entity = new Entity();
var adapter = new DependencyPropertyAdapter(entity, Entity.SampleProperty);
adapter.ValueChangedCallback = newValue => { };
adapter.ValueChangedCallback = null;
try
{
entity.Sample = 3;
}
catch
{
Assert.Fail();
}
}
