public void Constructor_ExpectedValues()
{
// Setup
var target = new SomeTestClass();
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(target);
PropertyDescriptor getSetProperty = properties[0];
// Precondition:
Assert.IsFalse(getSetProperty.IsReadOnly);
// Call
var readonlyPropertyDescriptor = new ReadOnlyPropertyDescriptorDecorator(getSetProperty);
// Assert
Assert.IsInstanceOf <PropertyDescriptor>(readonlyPropertyDescriptor);
Assert.IsTrue(readonlyPropertyDescriptor.IsReadOnly);
Assert.AreEqual(getSetProperty.ComponentType, readonlyPropertyDescriptor.ComponentType);
Assert.AreEqual(getSetProperty.PropertyType, readonlyPropertyDescriptor.PropertyType);
Assert.AreEqual(getSetProperty.Attributes, readonlyPropertyDescriptor.Attributes);
Assert.AreEqual(getSetProperty.Category, readonlyPropertyDescriptor.Category);
Assert.AreEqual(getSetProperty.Converter, readonlyPropertyDescriptor.Converter);
Assert.AreEqual(getSetProperty.Description, readonlyPropertyDescriptor.Description);
Assert.AreEqual(getSetProperty.DesignTimeOnly, readonlyPropertyDescriptor.DesignTimeOnly);
Assert.AreEqual(getSetProperty.DisplayName, readonlyPropertyDescriptor.DisplayName);
Assert.AreEqual(getSetProperty.IsBrowsable, readonlyPropertyDescriptor.IsBrowsable);
Assert.AreEqual(getSetProperty.IsLocalizable, readonlyPropertyDescriptor.IsLocalizable);
Assert.AreEqual(getSetProperty.Name, readonlyPropertyDescriptor.Name);
Assert.AreEqual(getSetProperty.SerializationVisibility, readonlyPropertyDescriptor.SerializationVisibility);
Assert.AreEqual(getSetProperty.SupportsChangeEvents, readonlyPropertyDescriptor.SupportsChangeEvents);
}
public void SetValue_Always_DelegateToWrappedPropertyDescriptor()
{
// Setup
const double originalPropertyValue = 1.1;
const double newValue = 2.2;
var component = new SomeTestClass
{
SomeEditableProperty = originalPropertyValue
};
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(component);
PropertyDescriptor getSetProperty = properties[0];
getSetProperty.SetValue(component, newValue);
double expectedPropertyValueAfterSet = component.SomeEditableProperty;
var wrappedProperty = new ReadOnlyPropertyDescriptorDecorator(getSetProperty);
component.SomeEditableProperty = originalPropertyValue;
// Call
wrappedProperty.SetValue(component, newValue);
// Assert
Assert.AreEqual(expectedPropertyValueAfterSet, component.SomeEditableProperty);
}
public void CanResetValue_Always_DelegateToWrappedPropertyDescriptor()
{
// Setup
var component = new SomeTestClass();
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(component);
PropertyDescriptor getSetProperty = properties[0];
var wrappedProperty = new ReadOnlyPropertyDescriptorDecorator(getSetProperty);
// Call
bool result = wrappedProperty.CanResetValue(component);
// Assert
Assert.AreEqual(getSetProperty.CanResetValue(component), result);
}
public void GetValue_Always_DelegateToWrappedPropertyDescriptor()
{
// Setup
var component = new SomeTestClass
{
SomeEditableProperty = 1.1
};
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(component);
PropertyDescriptor getSetProperty = properties[0];
var wrappedProperty = new ReadOnlyPropertyDescriptorDecorator(getSetProperty);
// Call
object result = wrappedProperty.GetValue(component);
// Assert
Assert.AreEqual(getSetProperty.GetValue(component), result);
Assert.AreEqual(component.SomeEditableProperty, result);
}
