func TestNodeSession(t *testing.T) { conf := getConfig() Convey("Given a clean Redis database", t, func() { p := NewRedisPool(conf.RedisURL) mustFlushRedis(p) Convey("Given a NodeSession", func() { ns := models.NodeSession{ DevAddr: [4]byte{1, 2, 3, 4}, DevEUI: [8]byte{1, 2, 3, 4, 5, 6, 7, 8}, } Convey("When getting a non-existing NodeSession", func() { _, err := getNodeSession(p, ns.DevAddr) Convey("Then an error is returned", func() { So(err, ShouldResemble, errors.New("get node-session for DevAddr 01020304 error: redigo: nil returned")) }) }) Convey("When saving the NodeSession", func() { So(saveNodeSession(p, ns), ShouldBeNil) Convey("Then when getting the NodeSession, the same data is returned", func() { ns2, err := getNodeSession(p, ns.DevAddr) So(err, ShouldBeNil) So(ns2, ShouldResemble, ns) }) Convey("Then the session can be retrieved by it's DevEUI", func() { ns2, err := getNodeSessionByDevEUI(p, ns.DevEUI) So(err, ShouldBeNil) So(ns2, ShouldResemble, ns) }) }) Convey("When calling validateAndGetFullFCntUp", func() { testTable := []struct { ServerFCnt uint32 NodeFCnt uint32 FullFCnt uint32 Valid bool }{ {0, 1, 1, true}, // ideal case counter was incremented {1, 1, 1, true}, // re-transmission {2, 1, 0, false}, // old packet received {0, Band.MaxFCntGap, 0, false}, // gap should be less than MaxFCntGap {0, Band.MaxFCntGap - 1, Band.MaxFCntGap - 1, true}, // gap is exactly within the allowed MaxFCntGap {65536, Band.MaxFCntGap - 1, Band.MaxFCntGap - 1 + 65536, true}, // roll-over happened, gap ix exactly within allowed MaxFCntGap {65535, Band.MaxFCntGap, 0, false}, // roll-over happened, but too many lost frames {65535, 0, 65536, true}, // roll-over happened {65536, 0, 65536, true}, // re-transmission {4294967295, 0, 0, true}, // 32 bit roll-over happened, counter started at 0 again } for _, test := range testTable { Convey(fmt.Sprintf("Then when FCntUp=%d, ValidateAndGetFullFCntUp(%d) should return (%d, %t)", test.ServerFCnt, test.NodeFCnt, test.FullFCnt, test.Valid), func() { ns.FCntUp = test.ServerFCnt fullFCntUp, ok := validateAndGetFullFCntUp(ns, test.NodeFCnt) So(ok, ShouldEqual, test.Valid) So(fullFCntUp, ShouldEqual, test.FullFCnt) }) } }) }) }) }