public void Visit(MismatchDiffItem mismatchDiffItem)
        {
            var ancestor     = mismatchDiffItem.CommonAncestor;
            var ancestorName = displayNameFor(ancestor);

            updateDiffItem(displayNameFor(mismatchDiffItem.Object1), displayNameFor(mismatchDiffItem.Object2), mismatchDiffItem.Description, ancestorName, ancestor, itemIsMissing: false);
        }
 protected override void Context()
 {
     base.Context();
     _diffItem = new MismatchDiffItem()
     {
         Object1        = new Container().WithName("P1"),
         Object2        = new Parameter().WithName("P1"),
         Description    = "ABC",
         CommonAncestor = null
     };
 }