public void PropertyContainer_Construct_ListFieldAssignsNull()
{
var src = new ClassContainerWithLists {
IntList = null
};
var dst = new ClassContainerWithLists {
IntList = new List <int>()
};
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.IntList, Is.Null);
}
}
public void PropertyContainer_Construct_ListFieldConstructsNewInstance()
{
var src = new ClassContainerWithLists {
IntList = new List <int>()
};
var dst = new ClassContainerWithLists {
IntList = null
};
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.IntList, Is.Not.Null);
Assert.That(!ReferenceEquals(src.IntList, dst.IntList));
}
}
public void PropertyContainer_Construct_ListFieldDoesNotDestroyExistingInstance()
{
var src = new ClassContainerWithLists {
IntList = new List <int>()
};
var dst = new ClassContainerWithLists {
IntList = new List <int>()
};
var reference = dst.IntList;
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(ReferenceEquals(reference, dst.IntList));
Assert.That(!ReferenceEquals(src.IntList, dst.IntList));
}
}
public void PropertyContainer_Construct_ListFieldElementConstructsNewInstance()
{
var src = new ClassContainerWithLists {
ContainerWithPrimitivesList = new List <ClassContainerWithPrimitives>
{
new ClassContainerWithPrimitives()
}
};
var dst = new ClassContainerWithLists {
ContainerWithPrimitivesList = new List <ClassContainerWithPrimitives>()
};
using (var result = PropertyContainer.Construct(ref dst, ref src))
{
Assert.That(result.Succeeded, Is.True);
Assert.That(dst.ContainerWithPrimitivesList, Is.Not.Null);
Assert.That(!ReferenceEquals(src.ContainerWithPrimitivesList, dst.ContainerWithPrimitivesList));
Assert.That(dst.ContainerWithPrimitivesList.Count, Is.EqualTo(1));
Assert.That(!ReferenceEquals(src.ContainerWithPrimitivesList[0], dst.ContainerWithPrimitivesList[0]));
}
}
