public void TestParentToDescendant()
{
var root = new TestNode("Root");
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
root.Children.Add(child0);
child0.Children.Add(child1);
child1.Children.Add(child2);
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(child0, child1);
Arrange.VerifyRelationship(child1, child2);
try
{
child1.Parent = child2;
Assert.Fail("Cyclic dependency.");
}
catch (TreeZeroException ex)
{
Assert.AreEqual(ExceptionReason.ParentToDescendant, ex.Reason);
}
catch (Exception ex)
{
Assert.Fail($"Wrong exception:{ex}");
}
}
public void TestBasicTreeByChildren()
{
var root = new TestNode("Root");
var manager = new TreeItemsSourceManager <TestNode>(true, root, (node) => true, (node) => (node).Children);
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
root.Children.Add(child0);
child0.Children.Add(child1);
child1.Children.Add(child2);
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(child0, child1);
Arrange.VerifyRelationship(child1, child2);
Arrange.ExpandTreeGridNodes(manager);
//child1.Parent = child0;
try
{
root.Children.Add(child0);
}
catch (TreeZeroException tzex)
{
Assert.AreEqual(ExceptionReason.ChildAddedToSameParent, tzex.Reason);
}
catch
{
Assert.Fail("Expected ExceptionReason.ChildAddedToSameParent");
}
}
public void TestChildrenAddSelf()
{
var root = new TestNode("Root");
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
root.Children.Add(child0);
root.Children.Add(child1);
root.Children.Add(child2);
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(root, child1);
Arrange.VerifyRelationship(root, child2);
try
{
child0.Children.Add(child0);
Assert.Fail("Node cannot be its own parent.");
}
catch (TreeZeroException ex)
{
Assert.AreEqual(ExceptionReason.ParentToSelf, ex.Reason);
}
catch (Exception ex)
{
Assert.Fail($"Wrong exception:{ex}");
}
}
public void TestNestChild()
{
var root = new TestNode("Root");
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
child0.Parent = root;
child1.Parent = root;
child2.Parent = child1;
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(root, child1);
Arrange.VerifyRelationship(child1, child2);
Assert.AreEqual(Arrange.GetNodeCount(root), 4);
}
public void TestNewChildren()
{
ObservableCollection <TestNode> childNodes = new ObservableCollection <TestNode>();
childNodes.Add(new TestNode("0"));
childNodes.Add(new TestNode("1"));
childNodes.Add(new TestNode("2"));
var root = new TestNode(childNodes, "Root");
Arrange.VerifyRelationship(root, childNodes[0]);
Arrange.VerifyRelationship(root, childNodes[1]);
Arrange.VerifyRelationship(root, childNodes[2]);
var manager = new TreeItemsSourceManager <TestNode>(true, root, (node) => true, (node) => ((TestNode)node).Children);
//manager.IsVisible = true;
manager.IsExpanded = true;
Debug.WriteLine(manager);
}
public void TestBasicTreeByParent()
{
var root = new TestNode("Root");
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
child0.Parent = root;
child1.Parent = root;
child2.Parent = root;
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(root, child1);
Arrange.VerifyRelationship(root, child2);
Assert.AreEqual(Arrange.GetNodeCount(root), 4);
TestNode s = root;
Debug.WriteLine(s);
}
public void TestParentToDescendant()
{
var root = new TestNode("Root");
var manager = new TreeItemsSourceManager <TestNode>(true, root, (node) => true, (node) => ((TestNode)node).Children);
//manager.IsVisible = true;
manager.IsExpanded = true;
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
root.Children.Add(child0);
child0.Children.Add(child1);
child1.Children.Add(child2);
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(child0, child1);
Arrange.VerifyRelationship(child1, child2);
//manager.IsVisible = true;
manager.IsExpanded = true;
Debug.WriteLine(manager);
try
{
child1.Parent = child2;
Assert.Fail("Cyclic dependency.");
}
catch (TreeZeroException ex)
{
Assert.AreEqual(ExceptionReason.ParentToDescendant, ex.Reason);
}
catch (Exception ex)
{
Assert.Fail($"Wrong exception:{ex}");
}
}
public void TestRemoveChild()
{
var root = new TestNode("Root");
var child0 = new TestNode("0");
var child1 = new TestNode("1");
var child2 = new TestNode("2");
child0.Parent = root;
child1.Parent = root;
child2.Parent = root;
Arrange.VerifyRelationship(root, child0);
Arrange.VerifyRelationship(root, child1);
root.Children.Remove(child1);
Assert.AreEqual(0, Arrange.CountChildReferences(root, child1));
Assert.AreEqual(null, child1.Parent);
Arrange.VerifyRelationship(root, child2);
Assert.AreEqual(Arrange.GetNodeCount(root), 3);
}
