private void SocketClient_ReceivedMessage(object sender, EventArgs e)
{
using (var ms = new MemoryStream(SocketClient.ReceiveMessage()))
{
Dispatcher.Invoke(() =>
{
var caretIndex = txtDocument.CaretIndex;
AppliedOperation appliedOperation = ProtoBuf.Serializer.Deserialize <AppliedOperation>(ms);
try
{
DocumentState.ApplyTransform(appliedOperation, ref caretIndex);
}
catch (Exception)
{
System.Diagnostics.Debugger.Break();
throw;
}
txtDocument.TextChanged -= Document_TextChanged;
txtDocument.Text = DocumentState.CurrentState;
txtDocument.TextChanged += Document_TextChanged;
txtDocument.CaretIndex = caretIndex;
});
}
}
public void DocumentState_ApplyTransform_Convergence_MultipleInsertsSameIndex()
{
var localDocumentState = new DocumentState(1, "");
var remoteDocumentState = new DocumentState(2, "");
var localTransform = new AppliedOperation(new InsertOperation(localDocumentState, 0, 'x'), localDocumentState);
localDocumentState.ApplyTransform(localTransform);
var localTransform2 = new AppliedOperation(new InsertOperation(localDocumentState, 1, 'x'), localDocumentState);
localDocumentState.ApplyTransform(localTransform2);
var remoteTransform = new AppliedOperation(new InsertOperation(remoteDocumentState, 0, 'Y'), remoteDocumentState);
remoteDocumentState.ApplyTransform(remoteTransform);
var remoteTransform2 = new AppliedOperation(new InsertOperation(remoteDocumentState, 1, 'Y'), remoteDocumentState);
remoteDocumentState.ApplyTransform(remoteTransform2);
localDocumentState.ApplyTransform(remoteTransform);
localDocumentState.ApplyTransform(remoteTransform2);
remoteDocumentState.ApplyTransform(localTransform);
remoteDocumentState.ApplyTransform(localTransform2);
Assert.AreEqual(localDocumentState.CurrentState, remoteDocumentState.CurrentState);
}
public void DocumentState_ApplyTransform_Convergence()
{
var localDocumentState = new DocumentState(1, "12345");
var remoteDocumentState = new DocumentState(2, "12345");
var localTransform = new AppliedOperation(new InsertOperation(localDocumentState, 0, 'x'), localDocumentState);
var remoteTransform = new AppliedOperation(new InsertOperation(remoteDocumentState, 2, 'Y'), remoteDocumentState);
localDocumentState.ApplyTransform(localTransform);
localDocumentState.ApplyTransform(remoteTransform);
remoteDocumentState.ApplyTransform(remoteTransform);
remoteDocumentState.ApplyTransform(localTransform);
Assert.AreEqual(localDocumentState.CurrentState, remoteDocumentState.CurrentState);
}
public void DocumentState_ApplyTransform_IntentionPreservation()
{
var localDocumentState = new DocumentState(1, "ABCDE");
var remoteDocumentState = new DocumentState(2, "ABCDE");
var localTransform = new AppliedOperation(new InsertOperation(localDocumentState, 1, '1'), localDocumentState);
var localTransform2 = new AppliedOperation(new InsertOperation(localDocumentState, 2, '2'), new[] { localTransform.Operation.Id });
var remoteTransform = new AppliedOperation(new DeleteOperation(remoteDocumentState, 2), remoteDocumentState);
var remoteTransform2 = new AppliedOperation(new DeleteOperation(remoteDocumentState, 2), new[] { remoteTransform.Operation.Id });
localDocumentState.ApplyTransform(localTransform);
localDocumentState.ApplyTransform(localTransform2);
localDocumentState.ApplyTransform(remoteTransform);
localDocumentState.ApplyTransform(remoteTransform2);
Assert.AreEqual("A12BE", localDocumentState.CurrentState);
}
public void DocumentState_ApplyTransform_TransformGetsApplied()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new InsertOperation(DocumentState, 0, 'a');
DocumentState.ApplyTransform(new AppliedOperation(transform));
Assert.AreEqual(DocumentState.AppliedOperations.SingleOrDefault().Value, transform);
Assert.AreEqual("a1234", DocumentState.CurrentState);
}
public void DocumentState_ApplyTransform_CaretSameForDeleteSame()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new DeleteOperation(DocumentState, 3);
var caretIndex = 3;
DocumentState.ApplyTransform(new AppliedOperation(transform), ref caretIndex);
Assert.AreEqual(3, caretIndex);
}
public void DocumentState_ApplyTransform_CaretSameForInsertAfter()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new InsertOperation(DocumentState, 3, 'a');
var caretIndex = 1;
DocumentState.ApplyTransform(new AppliedOperation(transform), ref caretIndex);
Assert.AreEqual(1, caretIndex);
}
public void DocumentState_ApplyTransform_CaretClampedForDeleteBefore()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new DeleteOperation(DocumentState, 0);
var caretIndex = 0;
DocumentState.ApplyTransform(new AppliedOperation(transform), ref caretIndex);
Assert.IsTrue(caretIndex >= 0);
}
public void DocumentState_ApplyTransform_CaretClampedForInsertBefore()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new InsertOperation(DocumentState, 0, 'a');
var caretIndex = 4;
DocumentState.ApplyTransform(new AppliedOperation(transform), ref caretIndex);
Assert.IsTrue(caretIndex <= DocumentState.CurrentState.Length);
}
public void DocumentState_ApplyTransform_CaretAdjustedForDeleteBefore()
{
var DocumentState = new DocumentState(1, "1234");
var transform = new DeleteOperation(DocumentState, 0);
var caretIndex = 2;
DocumentState.ApplyTransform(new AppliedOperation(transform), ref caretIndex);
Assert.AreEqual(1, caretIndex);
}