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raft: More realistic terms in tests

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Some tests were starting nodes with a non-empty log but a term of zero,
which cannot happen in the real world. This was affecting the final term
being tested in TestLeaderElection.
This commit is contained in:
Ben Darnell 2016-10-10 15:08:11 +08:00
parent 10cead3139
commit ca87a13b18
2 changed files with 16 additions and 14 deletions
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2
raft/raft_paper_test.go
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@ -757,7 +757,7 @@ func TestLeaderSyncFollowerLog(t *testing.T) {
// first node needs the vote from the third node to become the leader.
n := newNetwork(lead, follower, nopStepper)
n.send(pb.Message{From: 1, To: 1, Type: pb.MsgHup})
n.send(pb.Message{From: 3, To: 1, Type: pb.MsgVoteResp, Term: 1})
n.send(pb.Message{From: 3, To: 1, Type: pb.MsgVoteResp, Term: term + 1})
n.send(pb.Message{From: 1, To: 1, Type: pb.MsgProp, Entries: []pb.Entry{{}}})

28
raft/raft_test.go
View File

@ -290,19 +290,21 @@ func TestProgressPaused(t *testing.T) {
func TestLeaderElection(t *testing.T) {
tests := []struct {
*network
state StateType
state StateType
expTerm uint64
}{
{newNetwork(nil, nil, nil), StateLeader},
{newNetwork(nil, nil, nopStepper), StateLeader},
{newNetwork(nil, nopStepper, nopStepper), StateCandidate},
{newNetwork(nil, nopStepper, nopStepper, nil), StateCandidate},
{newNetwork(nil, nopStepper, nopStepper, nil, nil), StateLeader},
{newNetwork(nil, nil, nil), StateLeader, 1},
{newNetwork(nil, nil, nopStepper), StateLeader, 1},
{newNetwork(nil, nopStepper, nopStepper), StateCandidate, 1},
{newNetwork(nil, nopStepper, nopStepper, nil), StateCandidate, 1},
{newNetwork(nil, nopStepper, nopStepper, nil, nil), StateLeader, 1},
// three logs further along than 0
{newNetwork(nil, ents(1), ents(2), ents(1, 3), nil), StateFollower},
// three logs further along than 0, but in the same term so rejections
// are returned instead of the votes being ignored.
{newNetwork(nil, ents(1), ents(1), ents(1, 1), nil), StateFollower, 1},
// logs converge
{newNetwork(ents(1), nil, ents(2), ents(1), nil), StateLeader},
{newNetwork(ents(1), nil, ents(2), ents(1), nil), StateLeader, 2},
}
for i, tt := range tests {
@ -311,8 +313,8 @@ func TestLeaderElection(t *testing.T) {
if sm.state != tt.state {
t.Errorf("#%d: state = %s, want %s", i, sm.state, tt.state)
}
if g := sm.Term; g != 1 {
t.Errorf("#%d: term = %d, want %d", i, g, 1)
if g := sm.Term; g != tt.expTerm {
t.Errorf("#%d: term = %d, want %d", i, g, tt.expTerm)
}
}
}
@ -2585,7 +2587,7 @@ func ents(terms ...uint64) *raft {
storage.Append([]pb.Entry{{Index: uint64(i + 1), Term: term}})
}
sm := newTestRaft(1, []uint64{}, 5, 1, storage)
sm.reset(0)
sm.reset(terms[len(terms)-1])
return sm
}
@ -2620,7 +2622,7 @@ func newNetwork(peers ...stateMachine) *network {
for i := 0; i < size; i++ {
v.prs[peerAddrs[i]] = &Progress{}
}
v.reset(0)
v.reset(v.Term)
npeers[id] = v
case *blackHole:
npeers[id] = v