public void DeleteOperation_CreateInverse_InverseUndoesDelete()
{
var state = new DocumentState(1, "1234");
var delete = new DeleteOperation(state, 2);
var deletedstate = delete.ApplyTransform(state.CurrentState);
Assert.AreEqual(state.CurrentState, delete.CreateInverse(state).ApplyTransform(deletedstate));
}
public void OperationTransformer_TransformDeleteDelete_LocalEqualToRemote()
{
var state = new DocumentState(1, "123456789");
var localOperation = new DeleteOperation(state, 2);
var remoteOperation = new DeleteOperation(state, 2);
var transformed = OperationTransformer.Transform(remoteOperation, localOperation);
var stateStr = state.CurrentState;
stateStr = localOperation.ApplyTransform(stateStr);
stateStr = transformed.ApplyTransform(stateStr);
Assert.AreEqual("12456789", stateStr);
}
public void OperationTransformer_TransformDeleteInsert_LocalBeforeRemote()
{
var localState = new DocumentState(1, "123456789");
var remoteState = new DocumentState(1, "123456789");
var localOperation = new DeleteOperation(localState, 2);
var remoteOperation = new InsertOperation(remoteState, 4, 'a');
var transformed = OperationTransformer.Transform(remoteOperation, localOperation);
var stateStr = localState.CurrentState;
stateStr = localOperation.ApplyTransform(stateStr);
stateStr = transformed.ApplyTransform(stateStr);
Assert.AreEqual("124a56789", stateStr);
}