public void NodeIsModified_Reference()
{
if (ContentType.GetByName("File2") == null)
ContentTypeInstaller.InstallContentType(@"<?xml version=""1.0"" encoding=""utf-8""?>
<ContentType name=""File2"" parentType=""File"" handler=""SenseNet.ContentRepository.File"" xmlns=""http://schemas.sensenet.com/SenseNet/ContentRepository/ContentTypeDefinition"">
<DisplayName>Folder</DisplayName>
<Description>Use folders to group information to one place</Description>
<Icon>Folder</Icon>
<Fields>
<Field name=""References"" type=""Reference"" />
</Fields>
</ContentType>");
//int rootId = TestRoot.Id;
//int file2ctId = ContentType.GetByName("File2").Id;
var REFS = "References";
var node1 = Node.LoadNode(1);
var node2 = Node.LoadNode(2);
var node3 = Node.LoadNode(3);
var node4 = Node.LoadNode(4);
var node5 = Node.LoadNode(5);
var node6 = Node.LoadNode(6);
var node = new File(TestRoot, "File2");
node.SetReferences(REFS, new Node[] { node1, node2 }); // 1, 2
node.Save();
node = Node.Load<File>(node.Id);
bool changed0 = node.IsModified; // false
node.AddReference(REFS, node3); // 1, 2, 3
bool changed1 = node.IsModified; // true
node.RemoveReference(REFS, node3); // 1, 2
bool changed2 = node.IsModified; // false
node.RemoveReference(REFS, node1); // 2
bool changed3 = node.IsModified; // true
node.AddReference(REFS, node1); // 2, 1
bool changed4 = node.IsModified; // true
node.RemoveReference(REFS, node2); // 1
bool changed5 = node.IsModified; // true
node.AddReference(REFS, node2); // 1, 2
bool changed6 = node.IsModified; // false
node.SetReferences(REFS, new Node[] { node1, node2 }); // 1, 2
bool changed7 = node.IsModified; // false
node.ForceDelete();
Assert.IsFalse(changed0, "#0");
Assert.IsTrue(changed1, "#1");
Assert.IsFalse(changed2, "#2");
Assert.IsTrue(changed3, "#3");
Assert.IsTrue(changed4, "#4");
Assert.IsTrue(changed5, "#5");
Assert.IsFalse(changed6, "#6");
Assert.IsFalse(changed7, "#7");
}