Hong Kong faces a major test Tuesday, as the city tries to return to its normal workday patterns after a long weekend of violence, shop closures, and transportation halts that in effect put a curfew on daily life.

The four days of strife since the government used its emergency powers for the first time in half a century took a heavy toll on the usually bustling city. Frequently violent protests cropped up across Hong Kong, leaving behind a trail of arson, a few mob beatings and a lot of broken glass. Police, meanwhile, made...