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reader_test.go
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package rdb
import (
"fmt"
"math"
"os"
"path/filepath"
"strconv"
"strings"
"testing"
"github.com/ohler55/ojg/oj"
"github.com/stretchr/testify/require"
)
const alpahabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
var valueDumpsPath = filepath.Join("testdata", "valuedumps")
func generateAlphabetCycle(length int) string {
var sb strings.Builder
sb.Grow(length)
for i := 0; i < length; i++ {
_ = sb.WriteByte(alpahabet[i%len(alpahabet)])
}
return sb.String()
}
func TestReadString(t *testing.T) {
tests := map[string]struct {
file string
expected string
}{
"empty string": {
file: "string-empty.bin",
expected: "",
},
"int8 as string": {
file: "string-int8.bin",
expected: "42",
},
"int16 as string": {
file: "string-int16.bin",
expected: "-4242",
},
"int32 as string": {
file: "string-int32.bin",
expected: "42424242",
},
"LZF compressed": {
file: "string-lzf.bin",
expected: generateAlphabetCycle(1000),
},
"normal string": {
file: "string.bin",
expected: generateAlphabetCycle(142),
},
"long string": {
file: "string-long.bin",
expected: generateAlphabetCycle(20_000),
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeString, ot)
value, err := r.ReadString()
require.NoError(t, err)
require.Equal(t, tc.expected, value)
})
}
}
func TestReadString_withMaxLz77StrLen(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, "string-lzf.bin"))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
maxLz77StrLen: 10,
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeString, ot)
_, err = r.ReadString()
require.ErrorContains(t, err, "uncompressed length")
}
func TestReadList(t *testing.T) {
path := filepath.Join(valueDumpsPath, "list.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeList, ot)
list := make([]string, 0)
cb := func(elem string) error {
list = append(list, elem)
return nil
}
read, err := r.ReadList(cb)
require.NoError(t, err)
require.Equal(t, uint64(7), read)
require.Equal(t, []string{"a", "b", "c", "1", "2", "3", "def"}, list)
}
func TestReadSet(t *testing.T) {
path := filepath.Join(valueDumpsPath, "set.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeSet, ot)
set := make([]string, 0)
cb := func(elem string) error {
set = append(set, elem)
return nil
}
read, err := r.ReadList(cb)
require.NoError(t, err)
require.Equal(t, uint64(6), read)
require.ElementsMatch(t, []string{"hello", "world", "1", "2", "3", "upstash"}, set)
}
func TestReadZset(t *testing.T) {
path := filepath.Join(valueDumpsPath, "zset.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeZset, ot)
zset := make(map[string]float64)
cb := func(elem string, score float64) error {
zset[elem] = score
return nil
}
read, err := r.ReadZset(cb)
require.NoError(t, err)
require.Equal(t, uint64(6), read)
require.Equal(t, map[string]float64{
"score0": 0,
"score1": 1.5,
"score2": 2.5,
"score3": 42.42,
"neginf": math.Inf(-1),
"posinf": math.Inf(1),
}, zset)
}
func TestReadHash(t *testing.T) {
path := filepath.Join(valueDumpsPath, "hash.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeHash, ot)
hash := make(map[string]string)
cb := func(field, value string) error {
hash[field] = value
return nil
}
err = r.ReadHash(cb)
require.NoError(t, err)
require.Equal(t,
map[string]string{"a": "1", "b": "2", "cd": "34", "efgh": "upstash"},
hash,
)
}
func TestReadZset2(t *testing.T) {
path := filepath.Join(valueDumpsPath, "zset2.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeZset2, ot)
zset := make(map[string]float64)
cb := func(elem string, score float64) error {
zset[elem] = score
return nil
}
read, err := r.ReadZset2(cb)
require.NoError(t, err)
require.Equal(t, uint64(7), read)
require.Equal(t, map[string]float64{
"s1": 23.23,
"s2": -32.32,
"s3": math.Inf(-1),
"s4": math.Inf(1),
"s5": 0,
"s6": 1,
"s7": 42,
}, zset)
}
func TestReadModule2_JSON(t *testing.T) {
expected := map[string]any{
"str": "upstash",
"number": 42.42,
"int": 424242.0,
"bool": true,
"nested": map[string]any{
"null": nil,
"str": "rdb",
"arr": []any{1.0, 2.0, "upstash"},
},
"arr": []any{42.0, []any{42.0}, map[string]any{"arr": []any{"x", "y", []any{"z"}, false, nil, -4242.4242}}},
}
tests := map[string]string{
"v0": "module2-jsonv0.bin",
"v3": "module2-jsonv3.bin",
}
for name, file := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeModule2, ot)
value, moduleMarker, err := r.ReadModule2(false)
require.Equal(t, JSONModuleMarker, moduleMarker)
require.NoError(t, err)
var actual map[string]any
err = oj.Unmarshal([]byte(value), &actual)
require.NoError(t, err)
require.Equal(t, expected, actual)
})
}
}
func TestReadModule2_UnsupportedModule(t *testing.T) {
path := filepath.Join(valueDumpsPath, "module2-bloomfilter.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeModule2, ot)
_, _, err = r.ReadModule2(false)
require.ErrorContains(t, err, "MBbloom--")
}
func TestReadModule2_UnsupportedModule_withSkip(t *testing.T) {
path := filepath.Join(valueDumpsPath, "module2-bloomfilter.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeModule2, ot)
_, _, err = r.ReadModule2(true)
require.NoError(t, err)
}
func TestReadHashZipmap(t *testing.T) {
bigLenExpected := make(map[string]string)
for i := 0; i < 300; i++ {
bigLenExpected[strconv.Itoa(i)] = "x"
}
tests := map[string]struct {
file string
expected map[string]string
}{
"small len": {
file: "hash-zipmap-small.bin",
expected: map[string]string{
"a": "1", "b": "2", "up": "stash",
generateAlphabetCycle(253): generateAlphabetCycle(253),
generateAlphabetCycle(254): generateAlphabetCycle(255),
generateAlphabetCycle(255): generateAlphabetCycle(254),
generateAlphabetCycle(333): generateAlphabetCycle(300),
},
},
"big len": {
file: "hash-zipmap-big.bin",
expected: bigLenExpected,
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeHashZipmap, ot)
hash := make(map[string]string)
cb := func(field, value string) error {
hash[field] = value
return nil
}
err = r.ReadHashZipmap(cb)
require.NoError(t, err)
require.Equal(t, tc.expected, hash)
})
}
}
func TestReadListZiplist(t *testing.T) {
bigLenExpected := make([]string, 70_000)
for i := 0; i < 70_000; i++ {
bigLenExpected[i] = "x"
}
tests := map[string]struct {
file string
expected []string
expectedRead uint64
}{
"small len": {
file: "list-ziplist-small.bin",
expected: []string{
generateAlphabetCycle(18_000),
generateAlphabetCycle(100),
"upstash",
"3147483648",
"-9388608",
"40422",
"-12345",
"13",
"100",
"12",
"0",
"-1",
},
expectedRead: 12,
},
"big len": {
file: "list-ziplist-big.bin",
expected: bigLenExpected,
expectedRead: 70_000,
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeListZiplist, ot)
list := make([]string, 0)
cb := func(elem string) error {
list = append(list, elem)
return nil
}
read, err := r.ReadListZiplist(cb)
require.NoError(t, err)
require.Equal(t, tc.expectedRead, read)
require.Equal(t, tc.expected, list)
})
}
}
func TestReadSetIntset(t *testing.T) {
tests := map[string]struct {
file string
expected []string
}{
"int16": {
file: "set-intset-int16.bin",
expected: []string{"-42", "0", "42", "2323", "-12342"},
},
"int32": {
file: "set-intset-int32.bin",
expected: []string{"-424242", "191919", "42000", "-1234567"},
},
"int64": {
file: "set-intset-int64.bin",
expected: []string{"4294967296", "-14234167290", "4444444444", "-2323232323"},
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeSetIntset, ot)
set := make([]string, 0)
cb := func(elem string) error {
set = append(set, elem)
return nil
}
err = r.ReadSetIntset(cb)
require.NoError(t, err)
require.ElementsMatch(t, tc.expected, set)
})
}
}
func TestReadZsetZiplist(t *testing.T) {
path := filepath.Join(valueDumpsPath, "zset-ziplist.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeZsetZiplist, ot)
zset := make(map[string]float64)
cb := func(elem string, score float64) error {
zset[elem] = score
return nil
}
read, err := r.ReadZsetZiplist(cb)
require.NoError(t, err)
require.Equal(t, uint64(6), read)
require.Equal(t, map[string]float64{
"s0": 12.21,
"s1": -1.1,
"s2": math.Inf(-1),
"s3": 4242.4242,
"s4": math.Inf(1),
"s5": 0,
}, zset)
}
func TestReadHashZiplist(t *testing.T) {
path := filepath.Join(valueDumpsPath, "hash-ziplist.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeHashZiplist, ot)
hash := make(map[string]string)
cb := func(field, value string) error {
hash[field] = value
return nil
}
err = r.ReadHashZiplist(cb)
require.NoError(t, err)
require.Equal(t,
map[string]string{"foo": "bar", "bar": "baz", "a": "42", "up": "stash", "b": "23", "c": "-34"},
hash,
)
}
func TestReadListQuicklist(t *testing.T) {
bigLenExpected := make([]string, 1_000)
for i := 0; i < 1_000; i++ {
bigLenExpected[i] = "x"
}
tests := map[string]struct {
file string
expected []string
expectedRead uint64
}{
"small len": {
file: "list-quicklist-small.bin",
expected: []string{"1", "up", "2", "stash"},
expectedRead: 4,
},
"big len": {
file: "list-quicklist-big.bin",
expected: bigLenExpected,
expectedRead: 1_000,
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeListQuicklist, ot)
list := make([]string, 0)
cb := func(elem string) error {
list = append(list, elem)
return nil
}
read, err := r.ReadListQuicklist(cb)
require.NoError(t, err)
require.Equal(t, tc.expectedRead, read)
require.Equal(t, tc.expected, list)
})
}
}
func TestReadHashListpack(t *testing.T) {
path := filepath.Join(valueDumpsPath, "hash-listpack.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeHashListpack, ot)
hash := make(map[string]string)
cb := func(field, value string) error {
hash[field] = value
return nil
}
err = r.ReadHashListpack(cb)
require.NoError(t, err)
require.Equal(t,
map[string]string{
"uint7": "42",
"int13": "-1234",
"int16": "42000",
"int24": "-424242",
"int32": "96777216",
"int64": "-42949672960",
"6bitstr": "upstash",
"12bitstr": generateAlphabetCycle(100),
"32bitstr": generateAlphabetCycle(5_000),
},
hash,
)
}
func TestReadZsetListpack(t *testing.T) {
path := filepath.Join(valueDumpsPath, "zset-listpack.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeZsetListpack, ot)
zset := make(map[string]float64)
cb := func(elem string, score float64) error {
zset[elem] = score
return nil
}
read, err := r.ReadZsetListpack(cb)
require.NoError(t, err)
require.Equal(t, uint64(9), read)
require.Equal(t, map[string]float64{
"-42": 0,
"1234": -1.542,
"-42000": 42123.23,
"424242": 123123131,
"-96777216": -9999999,
"42949672960": math.Inf(-1),
"upstash": math.Inf(1),
generateAlphabetCycle(99): 99,
generateAlphabetCycle(5_001): -50.01,
}, zset)
}
func TestReadListQuicklist2(t *testing.T) {
smallExpected := make([]string, 20)
for i := 0; i < 20; i++ {
smallExpected[i] = generateAlphabetCycle(i * 10)
}
bigExpected := make([]string, 70_000)
for i := 0; i < 70_000; i++ {
bigExpected[i] = "x"
}
tests := map[string]struct {
file string
expected []string
expectedRead uint64
}{
"small len": {
file: "list-quicklist2-small.bin",
expected: smallExpected,
expectedRead: 20,
},
"big len": {
file: "list-quicklist2-big.bin",
expected: bigExpected,
expectedRead: 70_000,
},
}
for name, tc := range tests {
t.Run(name, func(t *testing.T) {
dump, err := os.ReadFile(filepath.Join(valueDumpsPath, tc.file))
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeListQuicklist2, ot)
list := make([]string, 0)
cb := func(elem string) error {
list = append(list, elem)
return nil
}
read, err := r.ReadListQuicklist2(cb)
require.NoError(t, err)
require.Equal(t, tc.expectedRead, read)
require.Equal(t, tc.expected, list)
})
}
}
func TestReadSetListpack(t *testing.T) {
path := filepath.Join(valueDumpsPath, "set-listpack.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeSetListpack, ot)
set := make([]string, 0)
cb := func(elem string) error {
set = append(set, elem)
return nil
}
err = r.ReadSetListpack(cb)
require.NoError(t, err)
require.ElementsMatch(t, []string{"up", "stash", "rdb", "23343423", "-42"}, set)
}
func TestReadStreamListpacks(t *testing.T) {
path := filepath.Join(valueDumpsPath, "stream-listpacks.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeStreamListpacks, ot)
entries := make([]StreamEntry, 0)
entryCB := func(entry StreamEntry) error {
entries = append(entries, entry)
return nil
}
groups := make([]StreamConsumerGroup, 0)
groupCB := func(group StreamConsumerGroup) error {
groups = append(groups, group)
return nil
}
read, err := r.ReadStreamListpacks(entryCB, groupCB)
require.NoError(t, err)
require.Equal(t, uint64(3), read)
expectedEntries := make([]StreamEntry, 3)
expectedEntries[0] = StreamEntry{
ID: StreamID{Millis: 1693576721400, Seq: 0},
Value: []string{"up", "up1", "stash", "stash1", "upstash", "upstash1"},
}
expectedEntries[1] = StreamEntry{
ID: StreamID{Millis: 1693576731925, Seq: 0},
Value: []string{"up", "up2", "stash", "stash2", "upstash", "upstash2"},
}
expectedEntries[2] = StreamEntry{
ID: StreamID{Millis: 1693576737806, Seq: 0},
Value: []string{"up", "up3", "stash", "stash3", "upstash", "upstash3"},
}
require.Equal(t, expectedEntries, entries)
expectedGroups := make([]StreamConsumerGroup, 1)
expectedGroups[0] = StreamConsumerGroup{
Name: "gg",
LastID: StreamID{Millis: 1693576737806, Seq: 0},
EntriesRead: 0,
Consumers: []StreamConsumer{
{
Name: "cc",
SeenTime: 1693576868734,
ActiveTime: 0,
PendingEntries: []*StreamPendingEntry{},
},
},
}
require.Equal(t, expectedGroups, groups)
}
func TestReadStreamListpacks2(t *testing.T) {
path := filepath.Join(valueDumpsPath, "stream-listpacks2.bin")
dump, err := os.ReadFile(path)
require.NoError(t, err)
err = VerifyValueChecksum(dump)
require.NoError(t, err)
dump = dump[:len(dump)-10]
r := valueReader{
buf: newMemoryBackedBuffer(dump),
}
ot, err := r.ReadType()
require.NoError(t, err)
require.Equal(t, TypeStreamListpacks2, ot)
entries := make([]StreamEntry, 0)
entryCB := func(entry StreamEntry) error {
entries = append(entries, entry)
return nil
}
groups := make([]StreamConsumerGroup, 0)
groupCB := func(group StreamConsumerGroup) error {
groups = append(groups, group)
return nil
}
read, err := r.ReadStreamListpacks2(entryCB, groupCB)
require.NoError(t, err)
require.Equal(t, uint64(6), read)
expectedEntries := make([]StreamEntry, 6)
expectedEntries[0] = StreamEntry{
ID: StreamID{Millis: 1693571577029, Seq: 0},
Value: []string{"up", "up", "stash", "stash"},
}
expectedEntries[1] = StreamEntry{
ID: StreamID{Millis: 1693571578033, Seq: 0},
Value: []string{"bar", "1", "baz", "2"},
}
expectedEntries[2] = StreamEntry{
ID: StreamID{Millis: 1693571578034, Seq: 0},
Value: []string{"up", "upstash", "1", "1"},
}
expectedEntries[3] = StreamEntry{
ID: StreamID{Millis: 1693571578038, Seq: 0},
Value: []string{"up", "up1"},
}
expectedEntries[4] = StreamEntry{
ID: StreamID{Millis: 1693571578039, Seq: 0},
Value: []string{"up", "up2"},
}