public void Add_Where_ItemsDoesntExist_Expect_True()
{
ExecutionStatusCallbackDispatcher _executionStatusCallbackDispatcher = new ExecutionStatusCallbackDispatcher();
Guid guid = Guid.NewGuid();
Action<ExecutionStatusCallbackMessage> callback = m => { };
const bool expected = true;
bool actual = _executionStatusCallbackDispatcher.Add(guid, callback);
Assert.AreEqual(expected, actual);
}