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));
}
public static void UndoAll(Shapes.Models.UndoRedoManager manager)
{
while (manager.CanUndo)
{
manager.Undo();
}
}
public void ChangeLocationCommandTest()
{
Shapes.Models.UndoRedoManager manager = new Shapes.Models.UndoRedoManager();
Shapes.Models.Vertex first = new Shapes.Models.Vertex
{
Location = new System.Windows.Point(1, 2)
};
Assert.AreEqual(new System.Windows.Point(1, 2), first.Location);
Shapes.Commands.Vertex.ChangeLocation changeLocationCommand =
new Shapes.Commands.Vertex.ChangeLocation(first, new System.Windows.Point(5, 6));
manager.Execute(changeLocationCommand);
Assert.AreEqual(new System.Windows.Point(5, 6), first.Location);
manager.Undo();
Assert.AreEqual(new System.Windows.Point(1, 2), first.Location);
manager.Redo();
Assert.AreEqual(new System.Windows.Point(5, 6), first.Location);
}