             let site = Site(url: "http://s\(0)ite\(0)/foo", title: "A \(0)")
             site.guid = "abc\(0)def"
             for i in 0...20 {
-                addVisitForSite(site, intoHistory: history, from: .Local, atTime: Timestamp(1439088398461 + (1000 * i)))
+                addVisitForSite(site, intoHistory: history, from: .Local, atTime: advanceTimestamp(1439088398461, by: 1000 * i))
             }
             return succeed()
         }


        history.insertOrUpdatePlace(site.asPlace(), modified: 1234567890).value

        let local = SiteVisit(site: site, date: Timestamp(1000 * 1437088398461), type: VisitType.Link)
        XCTAssertTrue(history.addLocalVisit(local).value.isSuccess)
    }
}


        history.insertOrUpdatePlace(site.asPlace(), modified: 1234567890).value
        for j in 0...20 {
            let visitTime = advanceMicrosecondTimestamp(1437088398461000, by: ((1000000 * i) + (1000 * j)))
            addVisitForSite(site, intoHistory: history, from: .Local, atTime: visitTime)
            addVisitForSite(site, intoHistory: history, from: .Remote, atTime: visitTime)
        }
