update raft_test TestLeaderElection2AA (talent-plan#159)

* update raft_test TestLeaderElection2AA

change expected state to StateCandidate. since implementation of prevote is not required

raft/raft_paper_test.go

@@ -181,11 +181,6 @@ func TestLeaderElectionInOneRoundRPC2AA(t *testing.T) {
 		{5, map[uint64]bool{2: true, 3: true, 4: true}, StateLeader},
 		{5, map[uint64]bool{2: true, 3: true}, StateLeader},
 
-		// return to follower state if it receives vote denial from a majority
-		{3, map[uint64]bool{2: false, 3: false}, StateFollower},
-		{5, map[uint64]bool{2: false, 3: false, 4: false, 5: false}, StateFollower},
-		{5, map[uint64]bool{2: true, 3: false, 4: false, 5: false}, StateFollower},
-
 		// stay in candidate if it does not obtain the majority
 		{3, map[uint64]bool{}, StateCandidate},
 		{5, map[uint64]bool{2: true}, StateCandidate},

raft/raft_test.go

@@ -66,24 +66,16 @@ func TestProgressLeader2AB(t *testing.T) {
 
 func TestLeaderElection2AA(t *testing.T) {
 	var cfg func(*Config)
-	candState := StateCandidate
-	candTerm := uint64(1)
 	tests := []struct {
 		*network
 		state   StateType
 		expTerm uint64
 	}{
 		{newNetworkWithConfig(cfg, nil, nil, nil), StateLeader, 1},
 		{newNetworkWithConfig(cfg, nil, nil, nopStepper), StateLeader, 1},
-		{newNetworkWithConfig(cfg, nil, nopStepper, nopStepper), candState, candTerm},
-		{newNetworkWithConfig(cfg, nil, nopStepper, nopStepper, nil), candState, candTerm},
+		{newNetworkWithConfig(cfg, nil, nopStepper, nopStepper), StateCandidate, 1},
+		{newNetworkWithConfig(cfg, nil, nopStepper, nopStepper, nil), StateCandidate, 1},
 		{newNetworkWithConfig(cfg, nil, nopStepper, nopStepper, nil, nil), StateLeader, 1},
-
-		// three logs further along than 0, but in the same term so rejections
-		// are returned instead of the votes being ignored.
-		{newNetworkWithConfig(cfg,
-			nil, entsWithConfig(cfg, 1), entsWithConfig(cfg, 1), entsWithConfig(cfg, 1, 1), nil),
-			StateFollower, 1},
 	}
 
 	for i, tt := range tests {