         let site = Site(url: "http://s\(5)ite\(5)/foo", title: "A \(5)")
         site.guid = "abc\(5)def"
         for i in 0...20 {
-            addVisitForSite(site, intoHistory: history, from: .Local, atTime: Timestamp(1438088398461 + (1000 * i)))
+            addVisitForSite(site, intoHistory: history, from: .Local, atTime: advanceTimestamp(1438088398461, by: 1000 * i))
         }
 
         let expectation = self.expectationWithDescription("First.")

            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)))
            }
            return succeed()
        }


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

        let ts: MicrosecondTimestamp = 1437088398461000
        let local = SiteVisit(site: site, date: ts, type: VisitType.Link)
        XCTAssertTrue(history.addLocalVisit(local).value.isSuccess)
    }
}
