public void AddTwoDifferentChildsChangeParentCheckStateToIndeterminate()
{
//Arrange
node = new NestedTripleTreeNode("Root", null, System.Windows.Forms.CheckState.Checked);
NestedTripleTreeNode child1 = new NestedTripleTreeNode("Child 1", null, System.Windows.Forms.CheckState.Unchecked);
NestedTripleTreeNode child2 = new NestedTripleTreeNode("Child 2", null, System.Windows.Forms.CheckState.Checked);
//Act
node.AddChild(child1);
node.AddChild(child2);
//Assert
Assert.AreEqual(System.Windows.Forms.CheckState.Indeterminate, node.CheckState);
Assert.AreEqual(System.Windows.Forms.CheckState.Unchecked, child1.CheckState);
Assert.AreEqual(System.Windows.Forms.CheckState.Checked, child2.CheckState);
}
public void RemoveOneOfTwoDifferentChildrenFromIndeterminateParentChangeParentCheckState()
{
//Arrange
node = new NestedTripleTreeNode("Root", value: null);
NestedTripleTreeNode child1 = new NestedTripleTreeNode("Child 1", value: null, state: System.Windows.Forms.CheckState.Unchecked);
NestedTripleTreeNode child2 = new NestedTripleTreeNode("Child 2", value: null, state: System.Windows.Forms.CheckState.Checked);
node.AddChild(child1);
node.AddChild(child2);
//Act
node.RemoveChild(child1);
//Assert
Assert.AreEqual(System.Windows.Forms.CheckState.Checked, node.CheckState);
Assert.AreEqual(System.Windows.Forms.CheckState.Checked, child2.CheckState);
}
/// <summary>
/// Создает тестовое дерево, которое можно отобразить на TreeView.
/// </summary>
/// <returns>Корень тестового дерева.</returns>
public static NestedTripleTreeNode CreateTestTree()
{
NestedTripleTreeNode node = new NestedTripleTreeNode("Root");
NestedTripleTreeNode node1 = new NestedTripleTreeNode("1");
NestedTripleTreeNode node211 = new NestedTripleTreeNode("2.1.1");
NestedTripleTreeNode node212 = new NestedTripleTreeNode("2.1.2");
NestedTripleTreeNode node21 = new NestedTripleTreeNode("2.1");
node21.AddChild(node211);
node21.AddChild(node212);
NestedTripleTreeNode node22 = new NestedTripleTreeNode("2.2");
NestedTripleTreeNode node2 = new NestedTripleTreeNode("2");
node2.AddChild(node21);
node2.AddChild(node22);
NestedTripleTreeNode node31 = new NestedTripleTreeNode("3.1");
NestedTripleTreeNode node32 = new NestedTripleTreeNode("3.2");
NestedTripleTreeNode node33 = new NestedTripleTreeNode("3.3");
NestedTripleTreeNode node3 = new NestedTripleTreeNode("3");
node3.AddChild(node31);
node3.AddChild(node32);
node3.AddChild(node33);
NestedTripleTreeNode node4 = new NestedTripleTreeNode("4");
node.AddChild(node1);
node.AddChild(node2);
node.AddChild(node3);
node.AddChild(node4);
return(node);
}
public void AddUncheckedChildToCheckedParentChangeParentCheckStateToUnchecked()
{
//Arrange
node = new NestedTripleTreeNode("Root", null, System.Windows.Forms.CheckState.Checked);
NestedTripleTreeNode child = new NestedTripleTreeNode("Child 1", null, System.Windows.Forms.CheckState.Unchecked);
//Act
node.AddChild(child);
//Assert
Assert.AreEqual(System.Windows.Forms.CheckState.Unchecked, node.CheckState);
Assert.AreEqual(System.Windows.Forms.CheckState.Unchecked, child.CheckState);
}
public void RemoveSingleChildrenFromParentNotChangeParentCheckState()
{
//Arrange
node = new NestedTripleTreeNode("Root", value: null);
NestedTripleTreeNode child1 = new NestedTripleTreeNode("Child 1", value: null, state: System.Windows.Forms.CheckState.Unchecked);
node.AddChild(child1);
//Act
node.RemoveChild(child1);
//Assert
Assert.AreEqual(System.Windows.Forms.CheckState.Unchecked, node.CheckState);
}
public void CanAddChildNode()
{
//Arrange
NestedTripleTreeNode child1 = new NestedTripleTreeNode("Child 1");
//Act
node.AddChild(child1);
//Assert
Assert.AreSame(child1, node.Nodes[0]);
Assert.AreSame(node, child1.Parent);
}