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Expand on Drand change testing #6500

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Jun 16, 2021
Merged

Expand on Drand change testing #6500

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52 changes: 38 additions & 14 deletions chain/sync_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,7 @@ type syncTestUtil struct {
blocks []*store.FullTipSet

nds []api.FullNode
us stmgr.UpgradeSchedule
}

func prepSyncTest(t testing.TB, h int) *syncTestUtil {
Expand All @@ -104,9 +105,10 @@ func prepSyncTest(t testing.TB, h int) *syncTestUtil {

mn: mocknet.New(ctx),
g: g,
us: stmgr.DefaultUpgradeSchedule(),
}

tu.addSourceNode(stmgr.DefaultUpgradeSchedule(), h)
tu.addSourceNode(h)

//tu.checkHeight("source", source, h)

Expand All @@ -119,7 +121,7 @@ func prepSyncTest(t testing.TB, h int) *syncTestUtil {
func prepSyncTestWithV5Height(t testing.TB, h int, v5height abi.ChainEpoch) *syncTestUtil {
logging.SetLogLevel("*", "INFO")

us := stmgr.UpgradeSchedule{{
sched := stmgr.UpgradeSchedule{{
// prepare for upgrade.
Network: network.Version9,
Height: 1,
Expand All @@ -138,7 +140,7 @@ func prepSyncTestWithV5Height(t testing.TB, h int, v5height abi.ChainEpoch) *syn
Migration: stmgr.UpgradeActorsV5,
}}

g, err := gen.NewGeneratorWithUpgradeSchedule(us)
g, err := gen.NewGeneratorWithUpgradeSchedule(sched)

if err != nil {
t.Fatalf("%+v", err)
Expand All @@ -153,9 +155,10 @@ func prepSyncTestWithV5Height(t testing.TB, h int, v5height abi.ChainEpoch) *syn

mn: mocknet.New(ctx),
g: g,
us: sched,
}

tu.addSourceNode(us, h)
tu.addSourceNode(h)
//tu.checkHeight("source", source, h)

// separate logs
Expand Down Expand Up @@ -266,7 +269,7 @@ func (tu *syncTestUtil) mineNewBlock(src int, miners []int) {
tu.g.CurTipset = mts
}

func (tu *syncTestUtil) addSourceNode(us stmgr.UpgradeSchedule, gen int) {
func (tu *syncTestUtil) addSourceNode(gen int) {
if tu.genesis != nil {
tu.t.Fatal("source node already exists")
}
Expand All @@ -282,7 +285,7 @@ func (tu *syncTestUtil) addSourceNode(us stmgr.UpgradeSchedule, gen int) {
node.Test(),

node.Override(new(modules.Genesis), modules.LoadGenesis(genesis)),
node.Override(new(stmgr.UpgradeSchedule), us),
node.Override(new(stmgr.UpgradeSchedule), tu.us),
)
require.NoError(tu.t, err)
tu.t.Cleanup(func() { _ = stop(context.Background()) })
Expand Down Expand Up @@ -315,6 +318,7 @@ func (tu *syncTestUtil) addClientNode() int {
node.Test(),

node.Override(new(modules.Genesis), modules.LoadGenesis(tu.genesis)),
node.Override(new(stmgr.UpgradeSchedule), tu.us),
)
require.NoError(tu.t, err)
tu.t.Cleanup(func() { _ = stop(context.Background()) })
Expand Down Expand Up @@ -1010,18 +1014,24 @@ func TestDrandNull(t *testing.T) {
build.UpgradeHyperdriveHeight = v5h
tu := prepSyncTestWithV5Height(t, H, v5h)

p0 := tu.addClientNode()
p1 := tu.addClientNode()

tu.loadChainToNode(p0)
tu.loadChainToNode(p1)

entropy := []byte{0, 2, 3, 4}
// arbitrarily chosen
pers := crypto.DomainSeparationTag_WinningPoStChallengeSeed

beforeNull := tu.g.CurTipset
afterNull := tu.mineOnBlock(beforeNull, 0, nil, false, false, nil, 2)
afterNull := tu.mineOnBlock(beforeNull, p0, nil, false, false, nil, 2)
nullHeight := beforeNull.TipSet().Height() + 1
if afterNull.TipSet().Height() == nullHeight {
t.Fatal("didn't inject nulls as expected")
}

rand, err := tu.nds[0].ChainGetRandomnessFromBeacon(tu.ctx, afterNull.TipSet().Key(), pers, nullHeight, entropy)
rand, err := tu.nds[p0].ChainGetRandomnessFromBeacon(tu.ctx, afterNull.TipSet().Key(), pers, nullHeight, entropy)
require.NoError(t, err)

// calculate the expected randomness based on the beacon BEFORE the null
Expand All @@ -1032,28 +1042,42 @@ func TestDrandNull(t *testing.T) {
require.Equal(t, []byte(rand), expectedRand)

// zoom zoom to past the v5 upgrade by injecting many many nulls
postUpgrade := tu.mineOnBlock(afterNull, 0, nil, false, false, nil, v5h)
nv, err := tu.nds[0].StateNetworkVersion(tu.ctx, types.EmptyTSK)
postUpgrade := tu.mineOnBlock(afterNull, p0, nil, false, false, nil, v5h)
nv, err := tu.nds[p0].StateNetworkVersion(tu.ctx, postUpgrade.TipSet().Key())
require.NoError(t, err)
if nv != network.Version13 {
t.Fatal("expect to be v13 by now")
}

afterNull = tu.mineOnBlock(postUpgrade, 0, nil, false, false, nil, 2)
afterNull = tu.mineOnBlock(postUpgrade, p0, nil, false, false, nil, 2)
nullHeight = postUpgrade.TipSet().Height() + 1
if afterNull.TipSet().Height() == nullHeight {
t.Fatal("didn't inject nulls as expected")
}

rand, err = tu.nds[0].ChainGetRandomnessFromBeacon(tu.ctx, afterNull.TipSet().Key(), pers, nullHeight, entropy)
rand0, err := tu.nds[p0].ChainGetRandomnessFromBeacon(tu.ctx, afterNull.TipSet().Key(), pers, nullHeight, entropy)
require.NoError(t, err)

// calculate the expected randomness based on the beacon AFTER the null
expectedBE = afterNull.Blocks[0].Header.BeaconEntries
expectedRand, err = store.DrawRandomness(expectedBE[len(expectedBE)-1].Data, pers, nullHeight, entropy)
require.NoError(t, err)

require.Equal(t, []byte(rand), expectedRand)
build.UpgradeHyperdriveHeight = ov5h
require.Equal(t, []byte(rand0), expectedRand)

// Introduce p1 to friendly p0 who has all the blocks
require.NoError(t, tu.mn.LinkAll())
tu.connect(p0, p1)
tu.waitUntilNodeHasTs(p1, afterNull.TipSet().Key())
p1Head := tu.getHead(p1)

// Yes, p1 syncs well to p0's chain
require.Equal(tu.t, p1Head.Key(), afterNull.TipSet().Key())

// Yes, p1 sources the same randomness as p0
rand1, err := tu.nds[p1].ChainGetRandomnessFromBeacon(tu.ctx, afterNull.TipSet().Key(), pers, nullHeight, entropy)
require.NoError(t, err)
require.Equal(t, rand0, rand1)

build.UpgradeHyperdriveHeight = ov5h
}