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raft: test leader replies to appResp

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This commit is contained in:
Xiang Li 2014-05-24 23:03:13 -07:00 committed by Yicheng Qin
parent 9bb7265d64
commit 167ef7e8b0
2 changed files with 37 additions and 0 deletions
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3
raft/raft.go
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@ -186,6 +186,9 @@ func (sm *stateMachine) reset() {
sm.ins = make([]index, sm.k)
for i := range sm.ins {
sm.ins[i] = index{next: sm.log.lastIndex() + 1}
if i == sm.addr {
sm.ins[i].match = sm.log.lastIndex()
}
}
}

34
raft/raft_test.go
View File

@ -441,6 +441,40 @@ func TestAllServerStepdown(t *testing.T) {
}
}
func TestLeaderAppResp(t *testing.T) {
tests := []struct {
index int
wmsgNum int
windex int
wcommitted int
}{
{-1, 1, 1, 0}, // bad resp; leader does not commit; reply with log entries
{2, 2, 2, 2}, // good resp; leader commits; broadcast with commit index
}
for i, tt := range tests {
// sm term is 1 after it becomes the leader.
// thus the last log term must be 1 to be committed.
sm := &stateMachine{addr: 0, k: 3, log: &log{ents: []Entry{{}, {Term: 0}, {Term: 1}}}}
sm.becomeCandidate()
sm.becomeLeader()
sm.Step(Message{From: 1, Type: msgAppResp, Index: tt.index, Term: sm.term})
msgs := sm.Msgs()
if len(msgs) != tt.wmsgNum {
t.Errorf("#%d msgNum = %d, want %d", i, len(msgs), tt.wmsgNum)
}
for j, msg := range msgs {
if msg.Index != tt.windex {
t.Errorf("#%d.%d index = %d, want %d", i, j, msg.Index, tt.windex)
}
if msg.Commit != tt.wcommitted {
t.Errorf("#%d.%d commit = %d, want %d", i, j, msg.Commit, tt.wcommitted)
}
}
}
}
func TestLogDiff(t *testing.T) {
a := []Entry{{}, {Term: 1}, {Term: 2}}
b := []Entry{{}, {Term: 1}, {Term: 2}}