Tests timestamps in console
Message has timestamp: true
Message timestamp doesn't differ too much from current time (one minute interval): true
Message 1 has non-decreasing timestamp: true
Message has timestamp: true
Message timestamp doesn't differ too much from current time (one minute interval): true
Message 2 has non-decreasing timestamp: true
Message has timestamp: true
Message timestamp doesn't differ too much from current time (one minute interval): true
