lotus/chain/events/events_test.go

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package events
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import (
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"context"
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"fmt"
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"testing"
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"time"
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"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/store"
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"github.com/ipfs/go-cid"
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"github.com/multiformats/go-multihash"
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"github.com/stretchr/testify/require"
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"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/address"
"github.com/filecoin-project/lotus/chain/types"
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)
var dummyCid cid.Cid
func init() {
dummyCid, _ = cid.Parse("bafkqaaa")
}
type fakeMsg struct {
bmsgs []*types.Message
smsgs []*types.SignedMessage
}
type fakeCS struct {
t *testing.T
h uint64
tsc *tipSetCache
msgs map[cid.Cid]fakeMsg
blkMsgs map[cid.Cid]cid.Cid
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sub func(rev, app []*types.TipSet)
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}
func (fcs *fakeCS) ChainGetTipSetByHeight(context.Context, uint64, *types.TipSet) (*types.TipSet, error) {
panic("Not Implemented")
}
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func makeTs(t *testing.T, h uint64, msgcid cid.Cid) *types.TipSet {
a, _ := address.NewFromString("t00")
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ts, err := types.NewTipSet([]*types.BlockHeader{
{
Height: h,
Miner: a,
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ParentStateRoot: dummyCid,
Messages: msgcid,
ParentMessageReceipts: dummyCid,
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},
})
require.NoError(t, err)
return ts
}
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func (fcs *fakeCS) ChainNotify(context.Context) (<-chan []*store.HeadChange, error) {
out := make(chan []*store.HeadChange, 1)
out <- []*store.HeadChange{{Type: store.HCCurrent, Val: fcs.tsc.best()}}
fcs.sub = func(rev, app []*types.TipSet) {
notif := make([]*store.HeadChange, len(rev)+len(app))
for i, r := range rev {
notif[i] = &store.HeadChange{
Type: store.HCRevert,
Val: r,
}
}
for i, r := range app {
notif[i+len(rev)] = &store.HeadChange{
Type: store.HCApply,
Val: r,
}
}
out <- notif
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}
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return out, nil
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}
func (fcs *fakeCS) ChainGetBlockMessages(ctx context.Context, blk cid.Cid) (*api.BlockMessages, error) {
messages, ok := fcs.blkMsgs[blk]
if !ok {
return &api.BlockMessages{}, nil
}
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ms, ok := fcs.msgs[messages]
if !ok {
return &api.BlockMessages{}, nil
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}
return &api.BlockMessages{BlsMessages: ms.bmsgs, SecpkMessages: ms.smsgs}, nil
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}
func (fcs *fakeCS) fakeMsgs(m fakeMsg) cid.Cid {
n := len(fcs.msgs)
c, err := cid.Prefix{
Version: 1,
Codec: cid.Raw,
MhType: multihash.IDENTITY,
MhLength: -1,
}.Sum([]byte(fmt.Sprintf("%d", n)))
require.NoError(fcs.t, err)
fcs.msgs[c] = m
return c
}
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func (fcs *fakeCS) advance(rev, app int, msgs map[int]cid.Cid, nulls ...int) { // todo: allow msgs
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if fcs.sub == nil {
fcs.t.Fatal("sub not be nil")
}
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nullm := map[int]struct{}{}
for _, v := range nulls {
nullm[v] = struct{}{}
}
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var revs []*types.TipSet
for i := 0; i < rev; i++ {
ts := fcs.tsc.best()
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if _, ok := nullm[int(ts.Height())]; !ok {
revs = append(revs, ts)
require.NoError(fcs.t, fcs.tsc.revert(ts))
}
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fcs.h--
}
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var apps []*types.TipSet
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for i := 0; i < app; i++ {
fcs.h++
mc, hasMsgs := msgs[i]
if !hasMsgs {
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mc = dummyCid
}
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if _, ok := nullm[int(fcs.h)]; ok {
continue
}
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ts := makeTs(fcs.t, fcs.h, mc)
require.NoError(fcs.t, fcs.tsc.add(ts))
if hasMsgs {
fcs.blkMsgs[ts.Blocks()[0].Cid()] = mc
}
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apps = append(apps, ts)
}
for i, j := 0, len(apps)-1; i < j; i, j = i+1, j-1 {
apps[i], apps[j] = apps[j], apps[i]
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}
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fcs.sub(revs, apps)
time.Sleep(100 * time.Millisecond) // TODO: :c
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}
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var _ eventApi = &fakeCS{}
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func TestAt(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
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require.Equal(t, 5, int(ts.Height()))
require.Equal(t, 8, int(curH))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
fcs.advance(0, 3, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 3, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 3, nil)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
fcs.advance(0, 3, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
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fcs.advance(10, 10, nil)
require.Equal(t, true, applied)
require.Equal(t, true, reverted)
applied = false
reverted = false
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fcs.advance(10, 1, nil)
require.Equal(t, false, applied)
require.Equal(t, true, reverted)
reverted = false
fcs.advance(0, 1, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 2, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 1, nil) // 8
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
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}
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func TestAtNullTrigger(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
require.Equal(t, uint64(6), ts.Height())
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require.Equal(t, 8, int(curH))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
fcs.advance(0, 6, nil, 5)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 3, nil)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
}
func TestAtNullConf(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
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require.Equal(t, 5, int(ts.Height()))
require.Equal(t, 8, int(curH))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
fcs.advance(0, 6, nil)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 3, nil, 8)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
fcs.advance(7, 1, nil)
require.Equal(t, false, applied)
require.Equal(t, true, reverted)
reverted = false
}
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func TestAtStart(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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fcs.advance(0, 5, nil) // 6
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
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require.Equal(t, 5, int(ts.Height()))
require.Equal(t, 8, int(curH))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(0, 5, nil) // 11
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
}
func TestAtStartConfidence(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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fcs.advance(0, 10, nil) // 11
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
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require.Equal(t, 5, int(ts.Height()))
require.Equal(t, 11, int(curH))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
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}
func TestAtChained(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
return events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
require.Equal(t, 10, int(ts.Height()))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
reverted = true
return nil
}, 3, 10)
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}, func(_ context.Context, ts *types.TipSet) error {
reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
fcs.advance(0, 15, nil)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
}
func TestAtChainedConfidence(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
fcs.advance(0, 15, nil)
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
return events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
require.Equal(t, 10, int(ts.Height()))
applied = true
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
reverted = true
return nil
}, 3, 10)
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}, func(_ context.Context, ts *types.TipSet) error {
reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
}
func TestAtChainedConfidenceNull(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
fcs.advance(0, 15, nil, 5)
var applied bool
var reverted bool
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err := events.ChainAt(func(_ context.Context, ts *types.TipSet, curH uint64) error {
applied = true
require.Equal(t, 6, int(ts.Height()))
return nil
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}, func(_ context.Context, ts *types.TipSet) error {
reverted = true
return nil
}, 3, 5)
require.NoError(t, err)
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
}
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func TestCalled(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
msgs: map[cid.Cid]fakeMsg{},
blkMsgs: map[cid.Cid]cid.Cid{},
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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t0123, err := address.NewFromString("t0123")
require.NoError(t, err)
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more := true
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var applied, reverted bool
var appliedMsg *types.Message
var appliedTs *types.TipSet
var appliedH uint64
err = events.Called(func(ts *types.TipSet) (d bool, m bool, e error) {
return false, true, nil
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}, func(msg *types.Message, ts *types.TipSet, curH uint64) (bool, error) {
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applied = true
appliedMsg = msg
appliedTs = ts
appliedH = curH
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return more, nil
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}, func(_ context.Context, ts *types.TipSet) error {
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reverted = true
return nil
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}, 3, 20, t0123, 5)
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require.NoError(t, err)
// create few blocks to make sure nothing get's randomly called
fcs.advance(0, 4, nil) // H=5
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
// create blocks with message (but below confidence threshold)
fcs.advance(0, 3, map[int]cid.Cid{ // msg at H=6; H=8 (confidence=2)
0: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 1},
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},
}),
})
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
// create additional block so we are above confidence threshold
fcs.advance(0, 2, nil) // H=10 (confidence=3, apply)
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require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
require.Equal(t, uint64(7), appliedTs.Height())
require.Equal(t, "bafkqaaa", appliedTs.Blocks()[0].Messages.String())
require.Equal(t, uint64(10), appliedH)
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require.Equal(t, t0123, appliedMsg.To)
require.Equal(t, uint64(1), appliedMsg.Nonce)
require.Equal(t, uint64(5), appliedMsg.Method)
// revert some blocks, keep the message
fcs.advance(3, 1, nil) // H=8 (confidence=1)
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require.Equal(t, false, applied)
require.Equal(t, false, reverted)
// revert the message
fcs.advance(2, 1, nil) // H=7, we reverted ts with the msg
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require.Equal(t, false, applied)
require.Equal(t, true, reverted)
reverted = false
// send new message on different height
n2msg := fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 2},
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},
})
fcs.advance(0, 5, map[int]cid.Cid{ // (confidence=3)
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0: n2msg,
})
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
require.Equal(t, uint64(9), appliedTs.Height())
require.Equal(t, "bafkqaaa", appliedTs.Blocks()[0].Messages.String())
require.Equal(t, uint64(12), appliedH)
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require.Equal(t, t0123, appliedMsg.To)
require.Equal(t, uint64(2), appliedMsg.Nonce)
require.Equal(t, uint64(5), appliedMsg.Method)
// revert and apply at different height
fcs.advance(4, 6, map[int]cid.Cid{ // (confidence=3)
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1: n2msg,
})
// TODO: We probably don't want to call revert/apply, as restarting certain
// actions may be expensive, and in this case the message is still
// on-chain, just at different height
require.Equal(t, true, applied)
require.Equal(t, true, reverted)
reverted = false
applied = false
require.Equal(t, uint64(11), appliedTs.Height())
require.Equal(t, "bafkqaaa", appliedTs.Blocks()[0].Messages.String())
require.Equal(t, uint64(14), appliedH)
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require.Equal(t, t0123, appliedMsg.To)
require.Equal(t, uint64(2), appliedMsg.Nonce)
require.Equal(t, uint64(5), appliedMsg.Method)
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// call method again
fcs.advance(0, 5, map[int]cid.Cid{
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0: n2msg,
})
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require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
// send and revert below confidence, then cross confidence
fcs.advance(0, 2, map[int]cid.Cid{
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0: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 3},
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},
}),
})
fcs.advance(1, 4, nil) // H=19, but message reverted
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require.Equal(t, false, applied)
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require.Equal(t, false, reverted)
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// test timeout (it's set to 20 in the call to `events.Called` above)
fcs.advance(0, 6, nil)
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require.Equal(t, false, applied) // not calling timeout as we received messages
require.Equal(t, false, reverted)
// test unregistering with more
more = false
fcs.advance(0, 5, map[int]cid.Cid{
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0: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 4}, // this signals we don't want more
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},
}),
})
require.Equal(t, true, applied)
require.Equal(t, false, reverted)
applied = false
fcs.advance(0, 5, map[int]cid.Cid{
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0: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 5},
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},
}),
})
require.Equal(t, false, applied) // should not get any further notifications
require.Equal(t, false, reverted)
// revert after disabled
fcs.advance(5, 1, nil) // try reverting msg sent after disabling
require.Equal(t, false, applied)
require.Equal(t, false, reverted)
fcs.advance(5, 1, nil) // try reverting msg sent before disabling
require.Equal(t, false, applied)
require.Equal(t, true, reverted)
}
func TestCalledTimeout(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
msgs: map[cid.Cid]fakeMsg{},
blkMsgs: map[cid.Cid]cid.Cid{},
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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t0123, err := address.NewFromString("t0123")
require.NoError(t, err)
called := false
err = events.Called(func(ts *types.TipSet) (d bool, m bool, e error) {
return false, true, nil
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}, func(msg *types.Message, ts *types.TipSet, curH uint64) (bool, error) {
called = true
require.Nil(t, msg)
require.Equal(t, uint64(20), ts.Height())
require.Equal(t, uint64(23), curH)
return false, nil
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}, func(_ context.Context, ts *types.TipSet) error {
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t.Fatal("revert on timeout")
return nil
}, 3, 20, t0123, 5)
require.NoError(t, err)
fcs.advance(0, 21, nil)
require.False(t, called)
fcs.advance(0, 5, nil)
require.True(t, called)
called = false
// with check func reporting done
fcs = &fakeCS{
t: t,
h: 1,
msgs: map[cid.Cid]fakeMsg{},
blkMsgs: map[cid.Cid]cid.Cid{},
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events = NewEvents(context.Background(), fcs)
err = events.Called(func(ts *types.TipSet) (d bool, m bool, e error) {
return true, true, nil
}, func(msg *types.Message, ts *types.TipSet, curH uint64) (bool, error) {
called = true
require.Nil(t, msg)
require.Equal(t, uint64(20), ts.Height())
require.Equal(t, uint64(23), curH)
return false, nil
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}, func(_ context.Context, ts *types.TipSet) error {
t.Fatal("revert on timeout")
return nil
}, 3, 20, t0123, 5)
require.NoError(t, err)
fcs.advance(0, 21, nil)
require.False(t, called)
fcs.advance(0, 5, nil)
require.False(t, called)
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}
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func TestCalledOrder(t *testing.T) {
fcs := &fakeCS{
t: t,
h: 1,
msgs: map[cid.Cid]fakeMsg{},
blkMsgs: map[cid.Cid]cid.Cid{},
tsc: newTSCache(2*build.ForkLengthThreshold, nil),
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}
require.NoError(t, fcs.tsc.add(makeTs(t, 1, dummyCid)))
events := NewEvents(context.Background(), fcs)
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t0123, err := address.NewFromString("t0123")
require.NoError(t, err)
at := 0
err = events.Called(func(ts *types.TipSet) (d bool, m bool, e error) {
return false, true, nil
}, func(msg *types.Message, ts *types.TipSet, curH uint64) (bool, error) {
switch at {
case 0:
require.Equal(t, uint64(1), msg.Nonce)
require.Equal(t, uint64(4), ts.Height())
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case 1:
require.Equal(t, uint64(2), msg.Nonce)
require.Equal(t, uint64(5), ts.Height())
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default:
t.Fatal("apply should only get called twice, at: ", at)
}
at++
return true, nil
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}, func(_ context.Context, ts *types.TipSet) error {
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switch at {
case 2:
require.Equal(t, uint64(5), ts.Height())
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case 3:
require.Equal(t, uint64(4), ts.Height())
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default:
t.Fatal("revert should only get called twice, at: ", at)
}
at++
return nil
}, 3, 20, t0123, 5)
require.NoError(t, err)
fcs.advance(0, 10, map[int]cid.Cid{
1: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 1},
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},
}),
2: fcs.fakeMsgs(fakeMsg{
bmsgs: []*types.Message{
{To: t0123, From: t0123, Method: 5, Nonce: 2},
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},
}),
})
fcs.advance(9, 1, nil)
}