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Merge pull request #1844 from xiang90/testunstable

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Testunstable
This commit is contained in:
Xiang Li 2014-12-03 13:47:28 -08:00
commit a36d07047a
1 changed files with 105 additions and 0 deletions
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105
raft/log_unstable_test.go
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@ -17,6 +17,7 @@
package raft
import (
"reflect"
"testing"
pb "github.com/coreos/etcd/raft/raftpb"
@ -187,3 +188,107 @@ func TestUnstableMaybeTerm(t *testing.T) {
}
}
}
func TestUnstableRestore(t *testing.T) {
u := unstable{
entries: []pb.Entry{{Index: 5, Term: 1}},
offset: 5,
snapshot: &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 4, Term: 1}},
}
s := pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 6, Term: 2}}
u.restore(s)
if u.offset != s.Metadata.Index+1 {
t.Errorf("offset = %d, want %d", u.offset, s.Metadata.Index+1)
}
if len(u.entries) != 0 {
t.Errorf("len = %d, want 0", len(u.entries))
}
if !reflect.DeepEqual(u.snapshot, &s) {
t.Errorf("snap = %v, want %v", u.snapshot, &s)
}
}
func TestUnstableStableTo(t *testing.T) {
tests := []struct {
entries []pb.Entry
offset uint64
snap *pb.Snapshot
index, term uint64
woffset uint64
wlen int
}{
{
[]pb.Entry{}, 0, nil,
5, 1,
0, 0,
},
{
[]pb.Entry{{Index: 5, Term: 1}}, 5, nil,
5, 1, // stable to the first entry
6, 0,
},
{
[]pb.Entry{{Index: 5, Term: 1}, {Index: 6, Term: 1}}, 5, nil,
5, 1, // stable to the first entry
6, 1,
},
{
[]pb.Entry{{Index: 6, Term: 2}}, 5, nil,
6, 1, // stable to the first entry and term mismatch
5, 1,
},
{
[]pb.Entry{{Index: 5, Term: 1}}, 5, nil,
4, 1, // stable to old entry
5, 1,
},
{
[]pb.Entry{{Index: 5, Term: 1}}, 5, nil,
4, 2, // stable to old entry
5, 1,
},
// with snapshot
{
[]pb.Entry{{Index: 5, Term: 1}}, 5, &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 4, Term: 1}},
5, 1, // stable to the first entry
6, 0,
},
{
[]pb.Entry{{Index: 5, Term: 1}, {Index: 6, Term: 1}}, 5, &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 4, Term: 1}},
5, 1, // stable to the first entry
6, 1,
},
{
[]pb.Entry{{Index: 6, Term: 2}}, 5, &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 5, Term: 1}},
6, 1, // stable to the first entry and term mismatch
5, 1,
},
{
[]pb.Entry{{Index: 5, Term: 1}}, 5, &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 4, Term: 1}},
4, 1, // stable to snapshot
5, 1,
},
{
[]pb.Entry{{Index: 5, Term: 2}}, 5, &pb.Snapshot{Metadata: pb.SnapshotMetadata{Index: 4, Term: 2}},
4, 1, // stable to old entry
5, 1,
},
}
for i, tt := range tests {
u := unstable{
entries: tt.entries,
offset: tt.offset,
snapshot: tt.snap,
}
u.stableTo(tt.index, tt.term)
if u.offset != tt.woffset {
t.Errorf("#%d: offset = %d, want %d", i, u.offset, tt.woffset)
}
if len(u.entries) != tt.wlen {
t.Errorf("#%d: len = %d, want %d", i, len(u.entries), tt.wlen)
}
}
}