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Merge pull request #3558 from yichengq/watch

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storage: add tests for RangeEvents and its underlying functions
This commit is contained in:
Yicheng Qin 2015-09-20 23:58:41 -07:00
commit f3d2b5831c
5 changed files with 524 additions and 54 deletions
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55
storage/index_test.go
View File

@ -136,6 +136,61 @@ func TestIndexTombstone(t *testing.T) {
}
}
func TestIndexRangeEvents(t *testing.T) {
allKeys := [][]byte{[]byte("foo"), []byte("foo1"), []byte("foo2"), []byte("foo2"), []byte("foo1"), []byte("foo")}
allRevs := []revision{{main: 1}, {main: 2}, {main: 3}, {main: 4}, {main: 5}, {main: 6}}
index := newTreeIndex()
for i := range allKeys {
index.Put(allKeys[i], allRevs[i])
}
atRev := int64(1)
tests := []struct {
key, end []byte
wrevs []revision
}{
// single key that not found
{
[]byte("bar"), nil, nil,
},
// single key that found
{
[]byte("foo"), nil, []revision{{main: 1}, {main: 6}},
},
// range keys, return first member
{
[]byte("foo"), []byte("foo1"), []revision{{main: 1}, {main: 6}},
},
// range keys, return first two members
{
[]byte("foo"), []byte("foo2"), []revision{{main: 1}, {main: 2}, {main: 5}, {main: 6}},
},
// range keys, return all members
{
[]byte("foo"), []byte("fop"), allRevs,
},
// range keys, return last two members
{
[]byte("foo1"), []byte("fop"), []revision{{main: 2}, {main: 3}, {main: 4}, {main: 5}},
},
// range keys, return last member
{
[]byte("foo2"), []byte("fop"), []revision{{main: 3}, {main: 4}},
},
// range keys, return nothing
{
[]byte("foo3"), []byte("fop"), nil,
},
}
for i, tt := range tests {
revs := index.RangeEvents(tt.key, tt.end, atRev)
if !reflect.DeepEqual(revs, tt.wrevs) {
t.Errorf("#%d: revs = %+v, want %+v", i, revs, tt.wrevs)
}
}
}
func TestIndexCompact(t *testing.T) {
maxRev := int64(20)
tests := []struct {

7
storage/key_index.go
View File

@ -157,7 +157,11 @@ func (ki *keyIndex) since(rev int64) []revision {
var gi int
// find the generations to start checking
for gi = len(ki.generations) - 1; gi > 0; gi-- {
if since.GreaterThan(ki.generations[gi].created) {
g := ki.generations[gi]
if g.isEmpty() {
continue
}
if since.GreaterThan(g.created) {
break
}
}
@ -173,6 +177,7 @@ func (ki *keyIndex) since(rev int64) []revision {
// replace the revision with a new one that has higher sub value,
// because the original one should not be seen by external
revs[len(revs)-1] = r
continue
}
revs = append(revs, r)
last = r.main

205
storage/key_index_test.go
View File

@ -20,50 +20,104 @@ import (
)
func TestKeyIndexGet(t *testing.T) {
// key: "foo"
// rev: 12
// key: "foo"
// rev: 16
// generations:
// {empty}
// {8[1], 10[2], 12(t)[3]}
// {4[2], 6(t)[3]}
// {{14, 0}[1], {14, 1}[2], {16, 0}(t)[3]}
// {{8, 0}[1], {10, 0}[2], {12, 0}(t)[3]}
// {{2, 0}[1], {4, 0}[2], {6, 0}(t)[3]}
ki := newTestKeyIndex()
ki.compact(4, make(map[revision]struct{}))
tests := []struct {
rev int64
wrev int64
werr error
wmod revision
wcreat revision
wver int64
werr error
}{
{13, 0, ErrRevisionNotFound},
{12, 0, ErrRevisionNotFound},
{17, revision{}, revision{}, 0, ErrRevisionNotFound},
{16, revision{}, revision{}, 0, ErrRevisionNotFound},
// get on generation 3
{15, revision{14, 1}, revision{14, 0}, 2, nil},
{14, revision{14, 1}, revision{14, 0}, 2, nil},
{13, revision{}, revision{}, 0, ErrRevisionNotFound},
{12, revision{}, revision{}, 0, ErrRevisionNotFound},
// get on generation 2
{11, 10, nil},
{10, 10, nil},
{9, 8, nil},
{8, 8, nil},
{11, revision{10, 0}, revision{8, 0}, 2, nil},
{10, revision{10, 0}, revision{8, 0}, 2, nil},
{9, revision{8, 0}, revision{8, 0}, 1, nil},
{8, revision{8, 0}, revision{8, 0}, 1, nil},
{7, 0, ErrRevisionNotFound},
{6, 0, ErrRevisionNotFound},
{7, revision{}, revision{}, 0, ErrRevisionNotFound},
{6, revision{}, revision{}, 0, ErrRevisionNotFound},
// get on generation 1
{5, 4, nil},
{4, 4, nil},
{5, revision{4, 0}, revision{2, 0}, 2, nil},
{4, revision{4, 0}, revision{2, 0}, 2, nil},
{3, 0, ErrRevisionNotFound},
{2, 0, ErrRevisionNotFound},
{1, 0, ErrRevisionNotFound},
{0, 0, ErrRevisionNotFound},
{3, revision{}, revision{}, 0, ErrRevisionNotFound},
{2, revision{}, revision{}, 0, ErrRevisionNotFound},
{1, revision{}, revision{}, 0, ErrRevisionNotFound},
{0, revision{}, revision{}, 0, ErrRevisionNotFound},
}
for i, tt := range tests {
rev, _, _, err := ki.get(tt.rev)
mod, creat, ver, err := ki.get(tt.rev)
if err != tt.werr {
t.Errorf("#%d: err = %v, want %v", i, err, tt.werr)
}
if rev.main != tt.wrev {
t.Errorf("#%d: rev = %d, want %d", i, rev.main, tt.rev)
if mod != tt.wmod {
t.Errorf("#%d: modified = %+v, want %+v", i, mod, tt.wmod)
}
if creat != tt.wcreat {
t.Errorf("#%d: created = %+v, want %+v", i, creat, tt.wcreat)
}
if ver != tt.wver {
t.Errorf("#%d: version = %d, want %d", i, ver, tt.wver)
}
}
}
func TestKeyIndexSince(t *testing.T) {
ki := newTestKeyIndex()
ki.compact(4, make(map[revision]struct{}))
allRevs := []revision{{4, 0}, {6, 0}, {8, 0}, {10, 0}, {12, 0}, {14, 1}, {16, 0}}
tests := []struct {
rev int64
wrevs []revision
}{
{17, nil},
{16, allRevs[6:]},
{15, allRevs[6:]},
{14, allRevs[5:]},
{13, allRevs[5:]},
{12, allRevs[4:]},
{11, allRevs[4:]},
{10, allRevs[3:]},
{9, allRevs[3:]},
{8, allRevs[2:]},
{7, allRevs[2:]},
{6, allRevs[1:]},
{5, allRevs[1:]},
{4, allRevs},
{3, allRevs},
{2, allRevs},
{1, allRevs},
{0, allRevs},
}
for i, tt := range tests {
revs := ki.since(tt.rev)
if !reflect.DeepEqual(revs, tt.wrevs) {
t.Errorf("#%d: revs = %+v, want %+v", i, revs, tt.wrevs)
}
}
}
@ -162,10 +216,11 @@ func TestKeyIndexCompact(t *testing.T) {
1,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{2, 0}, ver: 3, revs: []revision{{main: 2}, {main: 4}, {main: 6}}},
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -175,10 +230,11 @@ func TestKeyIndexCompact(t *testing.T) {
2,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{2, 0}, ver: 3, revs: []revision{{main: 2}, {main: 4}, {main: 6}}},
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -190,10 +246,11 @@ func TestKeyIndexCompact(t *testing.T) {
3,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{2, 0}, ver: 3, revs: []revision{{main: 2}, {main: 4}, {main: 6}}},
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -205,10 +262,11 @@ func TestKeyIndexCompact(t *testing.T) {
4,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{2, 0}, ver: 3, revs: []revision{{main: 4}, {main: 6}}},
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -220,10 +278,11 @@ func TestKeyIndexCompact(t *testing.T) {
5,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{2, 0}, ver: 3, revs: []revision{{main: 4}, {main: 6}}},
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -235,9 +294,10 @@ func TestKeyIndexCompact(t *testing.T) {
6,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -247,9 +307,10 @@ func TestKeyIndexCompact(t *testing.T) {
7,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -259,9 +320,10 @@ func TestKeyIndexCompact(t *testing.T) {
8,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -273,9 +335,10 @@ func TestKeyIndexCompact(t *testing.T) {
9,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 8}, {main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -287,9 +350,10 @@ func TestKeyIndexCompact(t *testing.T) {
10,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -301,9 +365,10 @@ func TestKeyIndexCompact(t *testing.T) {
11,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
modified: revision{16, 0},
generations: []generation{
{created: revision{8, 0}, ver: 3, revs: []revision{{main: 10}, {main: 12}}},
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
@ -314,9 +379,63 @@ func TestKeyIndexCompact(t *testing.T) {
{
12,
&keyIndex{
key: []byte("foo"),
modified: revision{12, 0},
generations: []generation{{}},
key: []byte("foo"),
modified: revision{16, 0},
generations: []generation{
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
map[revision]struct{}{},
},
{
13,
&keyIndex{
key: []byte("foo"),
modified: revision{16, 0},
generations: []generation{
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14}, {main: 14, sub: 1}, {main: 16}}},
{},
},
},
map[revision]struct{}{},
},
{
14,
&keyIndex{
key: []byte("foo"),
modified: revision{16, 0},
generations: []generation{
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14, sub: 1}, {main: 16}}},
{},
},
},
map[revision]struct{}{
revision{main: 14, sub: 1}: {},
},
},
{
15,
&keyIndex{
key: []byte("foo"),
modified: revision{16, 0},
generations: []generation{
{created: revision{14, 0}, ver: 3, revs: []revision{{main: 14, sub: 1}, {main: 16}}},
{},
},
},
map[revision]struct{}{
revision{main: 14, sub: 1}: {},
},
},
{
16,
&keyIndex{
key: []byte("foo"),
modified: revision{16, 0},
generations: []generation{
{},
},
},
map[revision]struct{}{},
},
@ -513,12 +632,13 @@ func TestGenerationWalk(t *testing.T) {
}
func newTestKeyIndex() *keyIndex {
// key: "foo"
// rev: 12
// key: "foo"
// rev: 16
// generations:
// {empty}
// {8[1], 10[2], 12(t)[3]}
// {2[1], 4[2], 6(t)[3]}
// {{14, 0}[1], {14, 1}[2], {16, 0}(t)[3]}
// {{8, 0}[1], {10, 0}[2], {12, 0}(t)[3]}
// {{2, 0}[1], {4, 0}[2], {6, 0}(t)[3]}
ki := &keyIndex{key: []byte("foo")}
ki.put(2, 0)
@ -527,5 +647,8 @@ func newTestKeyIndex() *keyIndex {
ki.put(8, 0)
ki.put(10, 0)
ki.tombstone(12, 0)
ki.put(14, 0)
ki.put(14, 1)
ki.tombstone(16, 0)
return ki
}

24
storage/kvstore.go
View File

@ -193,20 +193,34 @@ func (s *store) TxnDeleteRange(txnID int64, key, end []byte) (n, rev int64, err
return n, rev, nil
}
// RangeEvents gets the events from key to end at or after rangeRev.
// If rangeRev <=0, rangeEvents returns events from the beginning of the history.
// RangeEvents gets the events from key to end in [startRev, endRev).
// If `end` is nil, the request only observes the events on key.
// If `end` is not nil, it observes the events on key range [key, range_end).
// Limit limits the number of events returned.
// If the required rev is compacted, ErrCompacted will be returned.
// If startRev <=0, rangeEvents returns events from the beginning of uncompacted history.
// If endRev <=0, it indicates there is no end revision.
//
// If the required start rev is compacted, ErrCompacted will be returned.
// If the required start rev has not happened, ErrFutureRev will be returned.
//
// RangeEvents returns events that satisfy the requirement (0 <= n <= limit).
// If events in the revision range have not all happened, it returns immeidately
// what is available.
// It also returns nextRev which indicates the start revision used for the following
// RangeEvents call. The nextRev could be smaller than the given endRev if the store
// has not progressed so far or it hits the event limit.
//
// TODO: return byte slices instead of events to avoid meaningless encode and decode.
func (s *store) RangeEvents(key, end []byte, limit, startRev, endRev int64) (evs []storagepb.Event, nextRev int64, err error) {
s.mu.Lock()
defer s.mu.Unlock()
if startRev <= s.compactMainRev {
if startRev > 0 && startRev <= s.compactMainRev {
return nil, 0, ErrCompacted
}
if startRev > s.currentRev.main {
return nil, 0, ErrFutureRev
}
revs := s.kvindex.RangeEvents(key, end, startRev)
if len(revs) == 0 {
@ -218,7 +232,7 @@ func (s *store) RangeEvents(key, end []byte, limit, startRev, endRev int64) (evs
defer tx.Unlock()
// fetch events from the backend using revisions
for _, rev := range revs {
if rev.main >= endRev {
if endRev > 0 && rev.main >= endRev {
return evs, rev.main, nil
}
revbytes := newRevBytes()

287
storage/kvstore_test.go
View File

@ -258,6 +258,68 @@ func TestStoreDeleteRange(t *testing.T) {
}
}
func TestStoreRangeEvents(t *testing.T) {
ev := storagepb.Event{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{
Key: []byte("foo"),
Value: []byte("bar"),
CreateRevision: 1,
ModRevision: 2,
Version: 1,
},
}
evb, err := ev.Marshal()
if err != nil {
t.Fatal(err)
}
currev := revision{2, 0}
tests := []struct {
idxr indexRangeEventsResp
r rangeResp
}{
{
indexRangeEventsResp{[]revision{{2, 0}}},
rangeResp{[][]byte{newTestBytes(revision{2, 0})}, [][]byte{evb}},
},
{
indexRangeEventsResp{[]revision{{2, 0}, {3, 0}}},
rangeResp{[][]byte{newTestBytes(revision{2, 0})}, [][]byte{evb}},
},
}
for i, tt := range tests {
s, b, index := newFakeStore()
s.currentRev = currev
index.indexRangeEventsRespc <- tt.idxr
b.tx.rangeRespc <- tt.r
evs, _, err := s.RangeEvents([]byte("foo"), []byte("goo"), 1, 1, 4)
if err != nil {
t.Errorf("#%d: err = %v, want nil", i, err)
}
if w := []storagepb.Event{ev}; !reflect.DeepEqual(evs, w) {
t.Errorf("#%d: evs = %+v, want %+v", i, evs, w)
}
wact := []testutil.Action{
{"rangeEvents", []interface{}{[]byte("foo"), []byte("goo"), int64(1)}},
}
if g := index.Action(); !reflect.DeepEqual(g, wact) {
t.Errorf("#%d: index action = %+v, want %+v", i, g, wact)
}
wact = []testutil.Action{
{"range", []interface{}{keyBucketName, newTestBytes(tt.idxr.revs[0]), []byte(nil), int64(0)}},
}
if g := b.tx.Action(); !reflect.DeepEqual(g, wact) {
t.Errorf("#%d: tx action = %+v, want %+v", i, g, wact)
}
if s.currentRev != currev {
t.Errorf("#%d: current rev = %+v, want %+v", i, s.currentRev, currev)
}
}
}
func TestStoreCompact(t *testing.T) {
s, b, index := newFakeStore()
s.currentRev = revision{3, 0}
@ -346,6 +408,209 @@ func TestStoreRestore(t *testing.T) {
}
}
// tests end parameter works well
func TestStoreRangeEventsEnd(t *testing.T) {
s := newStore(tmpPath)
defer cleanup(s, tmpPath)
s.Put([]byte("foo"), []byte("bar"))
s.Put([]byte("foo1"), []byte("bar1"))
s.Put([]byte("foo2"), []byte("bar2"))
evs := []storagepb.Event{
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 1, ModRevision: 1, Version: 1},
},
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo1"), Value: []byte("bar1"), CreateRevision: 2, ModRevision: 2, Version: 1},
},
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo2"), Value: []byte("bar2"), CreateRevision: 3, ModRevision: 3, Version: 1},
},
}
tests := []struct {
key, end []byte
wevs []storagepb.Event
}{
// get no keys
{
[]byte("doo"), []byte("foo"),
nil,
},
// get no keys when key == end
{
[]byte("foo"), []byte("foo"),
nil,
},
// get no keys when ranging single key
{
[]byte("doo"), nil,
nil,
},
// get all keys
{
[]byte("foo"), []byte("foo3"),
evs,
},
// get partial keys
{
[]byte("foo"), []byte("foo1"),
evs[:1],
},
// get single key
{
[]byte("foo"), nil,
evs[:1],
},
}
for i, tt := range tests {
evs, rev, err := s.RangeEvents(tt.key, tt.end, 0, 1, 100)
if err != nil {
t.Fatal(err)
}
if rev != 4 {
t.Errorf("#%d: rev = %d, want %d", i, rev, 4)
}
if !reflect.DeepEqual(evs, tt.wevs) {
t.Errorf("#%d: evs = %+v, want %+v", i, evs, tt.wevs)
}
}
}
func TestStoreRangeEventsRev(t *testing.T) {
s := newStore(tmpPath)
defer cleanup(s, tmpPath)
s.Put([]byte("foo"), []byte("bar"))
s.DeleteRange([]byte("foo"), nil)
s.Put([]byte("foo"), []byte("bar"))
s.Put([]byte("unrelated"), []byte("unrelated"))
evs := []storagepb.Event{
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 1, ModRevision: 1, Version: 1},
},
{
Type: storagepb.DELETE,
Kv: &storagepb.KeyValue{Key: []byte("foo")},
},
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 3, ModRevision: 3, Version: 1},
},
}
tests := []struct {
start int64
end int64
wevs []storagepb.Event
wnext int64
}{
{1, 1, nil, 1},
{1, 2, evs[:1], 2},
{1, 3, evs[:2], 3},
{1, 4, evs, 5},
{1, 5, evs, 5},
{1, 10, evs, 5},
{3, 4, evs[2:], 5},
{0, 10, evs, 5},
{1, 0, evs, 5},
{0, 0, evs, 5},
}
for i, tt := range tests {
evs, next, err := s.RangeEvents([]byte("foo"), nil, 0, tt.start, tt.end)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(evs, tt.wevs) {
t.Errorf("#%d: evs = %+v, want %+v", i, evs, tt.wevs)
}
if next != tt.wnext {
t.Errorf("#%d: next = %d, want %d", i, next, tt.wnext)
}
}
}
func TestStoreRangeEventsBad(t *testing.T) {
s := newStore(tmpPath)
defer cleanup(s, tmpPath)
s.Put([]byte("foo"), []byte("bar"))
s.Put([]byte("foo"), []byte("bar1"))
s.Put([]byte("foo"), []byte("bar2"))
if err := s.Compact(3); err != nil {
t.Fatalf("compact error (%v)", err)
}
tests := []struct {
rev int64
werr error
}{
{1, ErrCompacted},
{2, ErrCompacted},
{3, ErrCompacted},
{4, ErrFutureRev},
{10, ErrFutureRev},
}
for i, tt := range tests {
_, _, err := s.RangeEvents([]byte("foo"), nil, 0, tt.rev, 100)
if err != tt.werr {
t.Errorf("#%d: error = %v, want %v", i, err, tt.werr)
}
}
}
func TestStoreRangeEventsLimit(t *testing.T) {
s := newStore(tmpPath)
defer cleanup(s, tmpPath)
s.Put([]byte("foo"), []byte("bar"))
s.DeleteRange([]byte("foo"), nil)
s.Put([]byte("foo"), []byte("bar"))
evs := []storagepb.Event{
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 1, ModRevision: 1, Version: 1},
},
{
Type: storagepb.DELETE,
Kv: &storagepb.KeyValue{Key: []byte("foo")},
},
{
Type: storagepb.PUT,
Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 3, ModRevision: 3, Version: 1},
},
}
tests := []struct {
limit int64
wevs []storagepb.Event
}{
// no limit
{-1, evs},
// no limit
{0, evs},
{1, evs[:1]},
{2, evs[:2]},
{3, evs},
{100, evs},
}
for i, tt := range tests {
evs, _, err := s.RangeEvents([]byte("foo"), nil, tt.limit, 1, 100)
if err != nil {
t.Fatalf("#%d: range error (%v)", i, err)
}
if !reflect.DeepEqual(evs, tt.wevs) {
t.Errorf("#%d: evs = %+v, want %+v", i, evs, tt.wevs)
}
}
}
func TestRestoreContinueUnfinishedCompaction(t *testing.T) {
s0 := newStore(tmpPath)
defer os.Remove(tmpPath)
@ -412,9 +677,10 @@ func newTestBytes(rev revision) []byte {
func newFakeStore() (*store, *fakeBackend, *fakeIndex) {
b := &fakeBackend{&fakeBatchTx{rangeRespc: make(chan rangeResp, 5)}}
index := &fakeIndex{
indexGetRespc: make(chan indexGetResp, 1),
indexRangeRespc: make(chan indexRangeResp, 1),
indexCompactRespc: make(chan map[revision]struct{}, 1),
indexGetRespc: make(chan indexGetResp, 1),
indexRangeRespc: make(chan indexRangeResp, 1),
indexRangeEventsRespc: make(chan indexRangeEventsResp, 1),
indexCompactRespc: make(chan map[revision]struct{}, 1),
}
return &store{
b: b,
@ -472,11 +738,16 @@ type indexRangeResp struct {
revs []revision
}
type indexRangeEventsResp struct {
revs []revision
}
type fakeIndex struct {
testutil.Recorder
indexGetRespc chan indexGetResp
indexRangeRespc chan indexRangeResp
indexCompactRespc chan map[revision]struct{}
indexGetRespc chan indexGetResp
indexRangeRespc chan indexRangeResp
indexRangeEventsRespc chan indexRangeEventsResp
indexCompactRespc chan map[revision]struct{}
}
func (i *fakeIndex) Get(key []byte, atRev int64) (rev, created revision, ver int64, err error) {
@ -500,7 +771,9 @@ func (i *fakeIndex) Tombstone(key []byte, rev revision) error {
return nil
}
func (i *fakeIndex) RangeEvents(key, end []byte, rev int64) []revision {
return nil
i.Recorder.Record(testutil.Action{Name: "rangeEvents", Params: []interface{}{key, end, rev}})
r := <-i.indexRangeEventsRespc
return r.revs
}
func (i *fakeIndex) Compact(rev int64) map[revision]struct{} {
i.Recorder.Record(testutil.Action{Name: "compact", Params: []interface{}{rev}})