Golang store.MustEncodeSet函數代碼示例

func TestManagerEvent(t *testing.T) {
	const alpha = 2
	runs := make(map[int64]*run)
	st := store.New()
	defer close(st.Ops)

	st.Ops <- store.Op{
		Seqn: 1,
		Mut:  store.MustEncodeSet(node+"/a/addr", "1.2.3.4:5", 0),
	}

	st.Ops <- store.Op{
		Seqn: 2,
		Mut:  store.MustEncodeSet(cal+"/1", "a", 0),
	}

	ch, err := st.Wait(store.Any, 2)
	if err != nil {
		panic(err)
	}

	x, _ := net.ResolveUDPAddr("udp", "1.2.3.4:5")
	pseqn := make(chan int64, 1)
	m := &Manager{
		Alpha: alpha,
		Self:  "a",
		PSeqn: pseqn,
		Ops:   st.Ops,
		Out:   make(chan Packet),
		run:   runs,
	}
	m.event(<-ch)

	exp := &run{
		self:  "a",
		seqn:  2 + alpha,
		cals:  []string{"a"},
		addr:  []*net.UDPAddr{x},
		ops:   st.Ops,
		out:   m.Out,
		bound: initialWaitBound,
	}
	exp.c = coordinator{
		crnd: 1,
		size: 1,
		quor: exp.quorum(),
	}
	exp.l = learner{
		round:  1,
		size:   1,
		quorum: int64(exp.quorum()),
		votes:  map[string]int64{},
		voted:  []bool{false},
	}

	assert.Equal(t, 1, len(runs))
	assert.Equal(t, exp, runs[exp.seqn])
	assert.Equal(t, exp.seqn, <-pseqn)
	assert.Equal(t, exp.seqn+1, m.next)
}

func TestManagerPacketProcessing(t *testing.T) {
	st := store.New()
	defer close(st.Ops)
	in := make(chan Packet)
	out := make(chan Packet, 100)
	var m Manager
	m.run = make(map[int64]*run)
	m.Alpha = 1
	m.Store = st
	m.In = in
	m.Out = out
	m.Ops = st.Ops

	st.Ops <- store.Op{1, store.MustEncodeSet(node+"/a/addr", "1.2.3.4:5", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/cal/0", "a", 0)}
	m.event(<-mustWait(st, 2))

	addr, _ := net.ResolveUDPAddr("udp", "127.0.0.1:9999")
	recvPacket(&m.packet, Packet{
		Data: mustMarshal(&msg{Seqn: proto.Int64(2), Cmd: learn, Value: []byte("foo")}),
		Addr: addr,
	})
	m.pump()
	assert.Equal(t, 0, m.packet.Len())
}

func TestManagerFilterPropSeqn(t *testing.T) {
	ps := make(chan int64, 100)
	st := store.New()
	defer close(st.Ops)

	m := &Manager{
		DefRev: 2,
		Alpha:  1,
		Self:   "b",
		PSeqn:  ps,
		Store:  st,
	}
	go m.Run()

	st.Ops <- store.Op{1, store.MustEncodeSet("/ctl/cal/0", "a", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/cal/1", "b", 0)}
	st.Ops <- store.Op{3, store.Nop}
	st.Ops <- store.Op{4, store.Nop}
	assert.Equal(t, int64(3), <-ps)
	assert.Equal(t, int64(5), <-ps)

	st.Ops <- store.Op{5, store.Nop}
	st.Ops <- store.Op{6, store.Nop}
	assert.Equal(t, int64(7), <-ps)
}

func TestConsensusOne(t *testing.T) {
	self := "test"
	const alpha = 1
	st := store.New()

	st.Ops <- store.Op{1, store.MustEncodeSet("/ctl/node/"+self+"/addr", "1.2.3.4:5", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/cal/1", self, 0)}
	<-st.Seqns

	in := make(chan Packet)
	out := make(chan Packet)
	seqns := make(chan int64, alpha)
	props := make(chan *Prop)

	m := &Manager{
		Self:   self,
		DefRev: 2,
		Alpha:  alpha,
		In:     in,
		Out:    out,
		Ops:    st.Ops,
		PSeqn:  seqns,
		Props:  props,
		TFill:  10e9,
		Store:  st,
		Ticker: time.Tick(10e6),
	}
	go m.Run()

	go func() {
		for o := range out {
			in <- o
		}
	}()

	n := <-seqns
	w, err := st.Wait(store.Any, n)
	if err != nil {
		panic(err)
	}
	props <- &Prop{n, []byte("foo")}
	e := <-w

	exp := store.Event{
		Seqn: 3,
		Path: "/ctl/err",
		Body: "bad mutation",
		Rev:  3,
		Mut:  "foo",
		Err:  errors.New("bad mutation"),
	}

	e.Getter = nil
	assert.Equal(t, exp, e)
}

func TestGetCalsPartial(t *testing.T) {
	st := store.New()
	defer close(st.Ops)

	st.Ops <- store.Op{Seqn: 1, Mut: store.MustEncodeSet(cal+"/1", "a", 0)}
	st.Ops <- store.Op{Seqn: 2, Mut: store.MustEncodeSet(cal+"/2", "", 0)}
	st.Ops <- store.Op{Seqn: 3, Mut: store.MustEncodeSet(cal+"/3", "", 0)}
	<-st.Seqns

	assert.Equal(t, []string{"a"}, getCals(st))
}

func TestGetAddrs(t *testing.T) {
	st := store.New()
	defer close(st.Ops)

	st.Ops <- store.Op{1, store.MustEncodeSet(node+"/1/addr", "1.2.3.4:5", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet(node+"/2/addr", "2.3.4.5:6", 0)}
	st.Ops <- store.Op{3, store.MustEncodeSet(node+"/3/addr", "3.4.5.6:7", 0)}
	<-st.Seqns

	x, _ := net.ResolveUDPAddr("udp", "1.2.3.4:5")
	y, _ := net.ResolveUDPAddr("udp", "2.3.4.5:6")
	z, _ := net.ResolveUDPAddr("udp", "3.4.5.6:7")
	addrs := getAddrs(st, []string{"1", "2", "3"})
	assert.Equal(t, []*net.UDPAddr{x, y, z}, addrs)
}

func TestManagerPumpDropsOldPackets(t *testing.T) {
	st := store.New()
	defer close(st.Ops)
	x := &net.UDPAddr{net.IP{1, 2, 3, 4}, 5}
	st.Ops <- store.Op{1, store.MustEncodeSet(node+"/a/addr", "1.2.3.4:5", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/cal/0", "a", 0)}

	var m Manager
	m.run = make(map[int64]*run)
	m.event(<-mustWait(st, 2))
	m.pump()
	recvPacket(&m.packet, Packet{x, mustMarshal(&msg{Seqn: proto.Int64(1)})})
	m.pump()
	assert.Equal(t, 0, m.Stats.WaitPackets)
}

func TestMemberSimple(t *testing.T) {
	st := store.New()
	defer close(st.Ops)
	fp := &test.FakeProposer{Store: st}
	c := make(chan string)
	go Clean(c, fp.Store, fp)

	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/x", "a", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/y", "b", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/node/a/addr", "1.2.3.4", store.Missing)))
	fp.Propose([]byte(store.MustEncodeSet("/ctl/cal/0", "a", store.Missing)))

	calCh, err := fp.Wait(store.MustCompileGlob("/ctl/cal/0"), 1+<-fp.Seqns)
	if err != nil {
		panic(err)
	}
	nodeCh, err := fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), 1+<-fp.Seqns)
	if err != nil {
		panic(err)
	}

	// indicate that this peer is inactive
	go func() { c <- "1.2.3.4" }()

	ev := <-calCh
	assert.T(t, ev.IsSet())
	assert.Equal(t, "", ev.Body)

	cs := []int{}

	ev = <-nodeCh
	assert.T(t, ev.IsDel())
	cs = append(cs, int(ev.Path[len(ev.Path)-1]))
	nodeCh, err = fp.Wait(store.MustCompileGlob("/ctl/node/a/?"), ev.Seqn+1)
	if err != nil {
		panic(err)
	}

	ev = <-nodeCh
	assert.T(t, ev.IsDel())
	cs = append(cs, int(ev.Path[len(ev.Path)-1]))

	sort.Ints(cs)
	assert.Equal(t, []int{'x', 'y'}, cs)
}

func (c cloner) VisitFile(path string, f *doozer.FileInfo) {
	// store.Clobber is okay here because the event
	// has already passed through another store
	body, _, err := c.cl.Get(path, &c.storeRev)
	if err != nil {
		panic(err)
	}
	mut := store.MustEncodeSet(path, string(body), store.Clobber)
	c.ch <- store.Op{f.Rev, mut}
}

func TestDelRun(t *testing.T) {
	const alpha = 2
	runs := make(map[int64]*run)
	st := store.New()
	defer close(st.Ops)

	st.Ops <- store.Op{1, store.MustEncodeSet(node+"/a/addr", "x", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet(cal+"/1", "a", 0)}
	st.Ops <- store.Op{3, store.Nop}
	st.Ops <- store.Op{4, store.Nop}

	c2, err := st.Wait(store.Any, 2)
	if err != nil {
		panic(err)
	}

	c3, err := st.Wait(store.Any, 3)
	if err != nil {
		panic(err)
	}

	c4, err := st.Wait(store.Any, 4)
	if err != nil {
		panic(err)
	}

	pseqn := make(chan int64, 100)
	m := &Manager{
		Alpha: alpha,
		Self:  "a",
		PSeqn: pseqn,
		Ops:   st.Ops,
		Out:   make(chan Packet),
		run:   runs,
	}
	m.event(<-c2)
	assert.Equal(t, 1, len(m.run))
	m.event(<-c3)
	assert.Equal(t, 2, len(m.run))
	m.event(<-c4)
	assert.Equal(t, 2, len(m.run))
}

func TestManagerTickQueue(t *testing.T) {
	st := store.New()
	defer close(st.Ops)
	st.Ops <- store.Op{1, store.MustEncodeSet(node+"/a/addr", "1.2.3.4:5", 0)}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/cal/0", "a", 0)}

	var m Manager
	m.run = make(map[int64]*run)
	m.Alpha = 1
	m.Store = st
	m.Out = make(chan Packet, 100)
	m.event(<-mustWait(st, 2))

	// get it to tick for seqn 3
	recvPacket(&m.packet, Packet{Data: mustMarshal(&msg{Seqn: proto.Int64(3), Cmd: propose})})
	m.pump()
	assert.Equal(t, 1, m.tick.Len())

	m.doTick(time.Now().UnixNano() + initialWaitBound*2)
	assert.Equal(t, int64(1), m.Stats.TotalTicks)
}

func follow(st *store.Store, cl *doozer.Conn, rev int64, stop chan bool) {
	for {
		ev, err := cl.Wait("/**", rev)
		if err != nil {
			panic(err)
		}

		// store.Clobber is okay here because the event
		// has already passed through another store
		mut := store.MustEncodeSet(ev.Path, string(ev.Body), store.Clobber)
		st.Ops <- store.Op{ev.Rev, mut}
		rev = ev.Rev + 1

		select {
		case <-stop:
			return
		default:
		}
	}
}

func TestConsensusTwo(t *testing.T) {
	a := "a"
	b := "b"
	x, _ := net.ResolveUDPAddr("udp", "1.2.3.4:5")
	xs := "1.2.3.4:5"
	y, _ := net.ResolveUDPAddr("udp", "2.3.4.5:6")
	ys := "2.3.4.5:6"
	const alpha = 1
	st := store.New()

	st.Ops <- store.Op{1, store.Nop}
	st.Ops <- store.Op{2, store.MustEncodeSet("/ctl/node/a/addr", xs, 0)}
	st.Ops <- store.Op{3, store.MustEncodeSet("/ctl/cal/1", a, 0)}
	st.Ops <- store.Op{4, store.MustEncodeSet("/ctl/node/b/addr", ys, 0)}
	st.Ops <- store.Op{5, store.MustEncodeSet("/ctl/cal/2", b, 0)}

	ain := make(chan Packet)
	aout := make(chan Packet)
	aseqns := make(chan int64, alpha)
	aprops := make(chan *Prop)
	am := &Manager{
		Self:   a,
		DefRev: 5,
		Alpha:  alpha,
		In:     ain,
		Out:    aout,
		Ops:    st.Ops,
		PSeqn:  aseqns,
		Props:  aprops,
		TFill:  10e9,
		Store:  st,
		Ticker: time.Tick(10e6),
	}
	go am.Run()

	bin := make(chan Packet)
	bout := make(chan Packet)
	bseqns := make(chan int64, alpha)
	bprops := make(chan *Prop)
	bm := &Manager{
		Self:   b,
		DefRev: 5,
		Alpha:  alpha,
		In:     bin,
		Out:    bout,
		Ops:    st.Ops,
		PSeqn:  bseqns,
		Props:  bprops,
		TFill:  10e9,
		Store:  st,
		Ticker: time.Tick(10e6),
	}
	go bm.Run()

	go func() {
		for o := range aout {
			if o.Addr.Port == x.Port && o.Addr.IP.Equal(x.IP) {
				go func(o Packet) { ain <- o }(o)
			} else {
				o.Addr = x
				go func(o Packet) { bin <- o }(o)
			}
		}
	}()

	go func() {
		for o := range bout {
			if o.Addr.Port == y.Port && o.Addr.IP.Equal(y.IP) {
				go func(o Packet) { bin <- o }(o)
			} else {
				o.Addr = y
				go func(o Packet) { ain <- o }(o)
			}
		}
	}()

	n := <-aseqns
	assert.Equal(t, int64(6), n)
	w, err := st.Wait(store.Any, n)
	if err != nil {
		panic(err)
	}
	aprops <- &Prop{n, []byte("foo")}
	e := <-w

	exp := store.Event{
		Seqn: 6,
		Path: "/ctl/err",
		Body: "bad mutation",
		Rev:  6,
		Mut:  "foo",
		Err:  errors.New("bad mutation"),
	}

	e.Getter = nil
	assert.Equal(t, exp, e)
}

func set(st *store.Store, path, body string, rev int64) {
	mut := store.MustEncodeSet(path, body, rev)
	st.Ops <- store.Op{1 + <-st.Seqns, mut}
}