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)
})
}
})
})
})
}
