public void BeginOperationTest()
{
DocumentDataModel target = new DocumentDataModel();
target.New(new Size(700, 1200), new Thickness(32, 32, 32, 32));
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
//Test that one call makes the Model busy.
target.BeginOperation("testoperation");
Assert.AreEqual(DataModel.ModelState.Busy, target.State);
DocumentDataModelInvariant(target);
//Test that second call starts a nested operation.
target.BeginOperation("nestedTestOperation");
Assert.AreEqual(DataModel.ModelState.Busy, target.State);
DocumentDataModelInvariant(target);
target.EndOperation("nestedTestOperation");
Assert.AreEqual(DataModel.ModelState.Busy, target.State);
DocumentDataModelInvariant(target);
target.EndOperation("testoperation");
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
DocumentDataModelInvariant(target);
}
public void EndOperationWithoutCreatingUndoState()
{
DocumentDataModel target = new DocumentDataModel();
target.New(new Size(700, 1200), new Thickness(32, 32, 32, 32));
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
Assert.IsFalse(target.HasUndoData);
target.BeginOperation("testoperation");
target.EndOperationWithoutCreatingUndoState("testoperation");
Assert.IsFalse(target.HasUndoData);
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
}
public void EndOperationTest()
{
DocumentDataModel target = new DocumentDataModel();
target.New(new Size(700, 1200), new Thickness(32, 32, 32, 32));
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
Assert.IsFalse(target.HasUndoData);
//Test that undo state is created at end of operation.
XElement expected = new XElement(target.DocumentRoot);
target.BeginOperation("testoperation");
target.AddShape(new XElement("testelement"));
target.EndOperation("testoperation");
Assert.IsTrue(target.HasUndoData);
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
target.Undo(); //Undo should bring us back before the operation.
AssertAreEqualStrings(expected, target.DocumentRoot);
}