public void InsertOperation_CreateInverse_InverseUndoesInsert()
{
var state = new DocumentState(1, "123456789");
var insert = new InsertOperation(state, 2, 'x');
var insertedstate = insert.ApplyTransform(state.CurrentState);
Assert.AreEqual(state.CurrentState, insert.CreateInverse(state).ApplyTransform(insertedstate));
}
public void OperationTransformer_TransformInsertDelete_LocalEqualToRemote()
{
var state = new DocumentState(1, "123456789");
var localOperation = new InsertOperation(state, 2, 'a');
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("12a456789", stateStr);
}
public void OperationTransformer_TransformInsertInsert_LocalAfterRemote()
{
var localState = new DocumentState(0, "123456789");
var remoteState = new DocumentState(1, "123456789");
var localOperation = new InsertOperation(localState, 4, 'a');
var remoteOperation = new InsertOperation(remoteState, 2, 'b');
var transformed = OperationTransformer.Transform(remoteOperation, localOperation);
var stateStr = localState.CurrentState;
stateStr = localOperation.ApplyTransform(stateStr);
stateStr = transformed.ApplyTransform(stateStr);
Assert.AreEqual("12b34a56789", stateStr);
}
public void OperationTransformer_Transform_CP1TP1Satisfied()
{
var site1Str = "abcd";
var site2Str = "abcd";
var site1 = new DocumentState(1, site1Str);
var site2 = new DocumentState(2, site2Str);
var op1 = new InsertOperation(site1, 0, '1');
var op2 = new InsertOperation(site2, 0, '2');
site1Str = op2.ApplyTransform(site1Str);
site1Str = OperationTransformer.Transform(op1, op2).ApplyTransform(site1Str);
site2Str = op1.ApplyTransform(site2Str);
site2Str = OperationTransformer.Transform(op2, op1).ApplyTransform(site2Str);
Assert.AreEqual(site1Str, site2Str);
}