Last night, US east coast time, the C919 had a second recorded test flight. It was 2:46 which is more than double the first recorded flight at 1:07. As the map shows, it did not fly too far from its Shanghai base.
In terms of its flight profile, see below. The aircraft was pretty stable altitude wise, staying about 10,000 feet, and experimented with speed.
This is a more conservative flight profile than we saw earlier this week with the MC-21. The Russian aircraft appears to be moving through its flight test program much more quickly.