public virtual void testQueryByInvalidUserOperationId()
{
startProcessInstance(PROCESS_KEY);
string taskId = taskService.createTaskQuery().singleResult().Id;
// when
taskService.resolveTask(taskId, Variables);
//then
HistoricDetailQuery query = historyService.createHistoricDetailQuery().userOperationId("invalid");
assertEquals(0, query.list().size());
assertEquals(0, query.count());
try
{
query.userOperationId(null);
fail("It was possible to set a null value as userOperationId.");
}
catch (ProcessEngineException)
{
}
}