public void AddVertexCommandTest()
{
Shapes.Models.UndoRedoManager manager = new Shapes.Models.UndoRedoManager();
Shapes.Models.Canvas testCanvas = new Shapes.Models.Canvas();
Shapes.Models.Vertex first = new Shapes.Models.Vertex();
Shapes.Models.Vertex second = new Shapes.Models.Vertex();
Assert.AreEqual(0, testCanvas.Count);
Shapes.Commands.Vertex.AddVertex testCommand =
new Shapes.Commands.Vertex.AddVertex(testCanvas, first, manager);
manager.Execute(testCommand);
Assert.AreEqual(1, testCanvas.Count);
manager.Undo();
Assert.AreEqual(0, testCanvas.Count);
manager.Redo();
Assert.AreEqual(1, testCanvas.Count);
manager.Execute(
new Shapes.Commands.Vertex.AddVertex(testCanvas, second, manager));
Assert.AreEqual(2, testCanvas.Count);
manager.Undo();
manager.Undo();
Assert.AreEqual(0, testCanvas.Count);
manager.Redo();
Assert.AreEqual(1, testCanvas.Count);
Configuration.UndoAll(manager);
}
public void RemoveVertexCommandTest()
{
Shapes.Models.UndoRedoManager manager = new Shapes.Models.UndoRedoManager();
Shapes.Models.Canvas canvas = new Shapes.Models.Canvas();
Shapes.Models.Vertex first = new Shapes.Models.Vertex
{
Location = new System.Windows.Point(1, 2)
};
Assert.AreEqual(0, canvas.Count);
Assert.IsFalse(canvas.Contains(first));
canvas.Add(first);
Assert.AreEqual(1, canvas.Count);
Assert.IsTrue(canvas.Contains(first));
Shapes.Commands.Vertex.RemoveVertex removeVertexCommand =
new Shapes.Commands.Vertex.RemoveVertex(canvas, first);
manager.Execute(removeVertexCommand);
Assert.AreEqual(0, canvas.Count);
Assert.IsFalse(canvas.Contains(first));
manager.Undo();
Assert.AreEqual(1, canvas.Count);
Assert.IsTrue(canvas.Contains(first));
manager.Redo();
Assert.AreEqual(0, canvas.Count);
Assert.IsFalse(canvas.Contains(first));
}
// METHODS
/// <summary>
/// Loads information from xml file.
/// </summary>
/// <param name="item">Object to loading.</param>
/// <param name="fileName">The name of file.</param>
public void Load(ref Shapes.Models.Canvas item, string fileName)
{
item.Clear();
System.Xml.Serialization.XmlSerializer xmlFormat = new System.Xml.Serialization.XmlSerializer(typeof(Shapes.Models.Canvas),
new System.Type[] { typeof(Shapes.Models.ShapeBase), typeof(Shapes.Models.Vertex), typeof(Shapes.Models.Pentagon) });
using (System.IO.FileStream fStream = new System.IO.FileStream(fileName,
System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.None))
{
item = (Shapes.Models.Canvas)xmlFormat.Deserialize(fStream);
}
}
/// <summary>
/// Saves information to xml file.
/// </summary>
/// <param name="item">Object to saving.</param>
/// <param name="fileName">The name of file.</param>
/// <exception cref="System.ArgumentNullException">
/// Thrown when canvas is null.
/// </exception>
public void Save(Shapes.Models.Canvas item, string fileName)
{
if (item != null)
{
System.Xml.Serialization.XmlSerializer xmlFormat = new System.Xml.Serialization.XmlSerializer(typeof(Shapes.Models.Canvas),
new System.Type[] { typeof(Shapes.Models.ShapeBase), typeof(Shapes.Models.Vertex), typeof(Shapes.Models.Pentagon) });
using (System.IO.FileStream fStream = new System.IO.FileStream(fileName,
System.IO.FileMode.Create, System.IO.FileAccess.Write, System.IO.FileShare.None))
{
xmlFormat.Serialize(fStream, item);
}
}
else
{
throw new System.ArgumentNullException("Canvas is null.");
}
}
