BEIJING: China’s Shanghai Stock Exchange will run tests on its auction and various other platforms on Sunday, the state-run reported on Saturday, a day after an unexplained transaction delay. Friday’s delay on trades at the benchmark Shanghai Composite Index coincided with a Chinese stock rally that followed official announcements of a slew of monetary, liquidity and fiscal stimulus this week. All market participants can participate in Sunday’s test, which will seek to identify issues with processing a large number of orders during the auction process, the report said. The test will simulate a normal day’s trading and clearing.