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addbatch_test.go
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addbatch_test.go
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package arbo
import (
"bytes"
"crypto/rand"
"encoding/hex"
"fmt"
"math/big"
"runtime"
"sort"
"testing"
"time"
qt "github.com/frankban/quicktest"
"github.com/vocdoni/arbo/memdb"
"go.vocdoni.io/dvote/db"
"go.vocdoni.io/dvote/db/pebbledb"
)
var debug = false
func printTestContext(prefix string, nLeafs int, hashName, dbName string) {
if debug {
fmt.Printf("%snCPU: %d, nLeafs: %d, hash: %s, db: %s\n",
prefix, runtime.NumCPU(), nLeafs, hashName, dbName)
}
}
func printRes(name string, duration time.Duration) {
if debug {
fmt.Printf("%s: %s \n", name, duration)
}
}
func debugTime(descr string, time1, time2 time.Duration) {
if debug {
fmt.Printf("%s was %.02fx times faster than without AddBatch\n",
descr, float64(time1)/float64(time2))
}
}
func testInit(c *qt.C, n int) (*Tree, *Tree) {
database1 := memdb.New()
tree1, err := NewTree(Config{Database: database1, MaxLevels: 256,
HashFunction: HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
database2 := memdb.New()
tree2, err := NewTree(Config{Database: database2, MaxLevels: 256,
HashFunction: HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
bLen := HashFunctionPoseidon.Len()
// add the initial leafs to fill a bit the trees before calling the
// AddBatch method
for i := 0; i < n; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree1.Add(k, v); err != nil {
c.Fatal(err)
}
if err := tree2.Add(k, v); err != nil {
c.Fatal(err)
}
}
return tree1, tree2
}
func TestAddBatchTreeEmpty(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
bLen := 32
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
start := time.Now()
for i := 0; i < nLeafs; i++ {
if err := tree.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
time1 := time.Since(start)
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
tree2.dbgInit()
start = time.Now()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
time2 := time.Since(start)
if debug {
debugTime("Case tree empty, AddBatch", time1, time2)
printTestContext(" ", nLeafs, "Poseidon", "memory")
tree2.dbg.print(" ")
}
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree, tree2)
}
func TestAddBatchTreeEmptyNotPowerOf2(t *testing.T) {
c := qt.New(t)
nLeafs := 1027
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
bLen := 32
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree.Add(k, v); err != nil {
t.Fatal(err)
}
}
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree, tree2)
}
func randomBytes(n int) []byte {
b := make([]byte, n)
_, err := rand.Read(b)
if err != nil {
panic(err)
}
return b
}
func TestAddBatchTestVector1(t *testing.T) {
c := qt.New(t)
database1, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err := NewTree(Config{database1, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
// leafs in 2nd level subtrees: [ 6, 0, 1, 1]
testvectorKeys := []string{
"1c7c2265e368314ca58ed2e1f33a326f1220e234a566d55c3605439dbe411642",
"2c9f0a578afff5bfa4e0992a43066460faaab9e8e500db0b16647c701cdb16bf",
"1c45cb31f2fa39ec7b9ebf0fad40e0b8296016b5ce8844ae06ff77226379d9a5",
"d8af98bbbb585129798ae54d5eabbc9d0561d583faf1663b3a3724d15bda4ec7",
}
var keys, values [][]byte
for i := 0; i < len(testvectorKeys); i++ {
key, err := hex.DecodeString(testvectorKeys[i])
c.Assert(err, qt.IsNil)
keys = append(keys, key)
values = append(values, []byte{0})
}
for i := 0; i < len(keys); i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
// 2nd test vectors
database1, err = pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err = NewTree(Config{database1, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
database2, err = pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err = NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
testvectorKeys = []string{
"1c7c2265e368314ca58ed2e1f33a326f1220e234a566d55c3605439dbe411642",
"2c9f0a578afff5bfa4e0992a43066460faaab9e8e500db0b16647c701cdb16bf",
"9cb87ec67e875c61390edcd1ab517f443591047709a4d4e45b0f9ed980857b8e",
"9b4e9e92e974a589f426ceeb4cb291dc24893513fecf8e8460992dcf52621d4d",
"1c45cb31f2fa39ec7b9ebf0fad40e0b8296016b5ce8844ae06ff77226379d9a5",
"d8af98bbbb585129798ae54d5eabbc9d0561d583faf1663b3a3724d15bda4ec7",
"3cd55dbfb8f975f20a0925dfbdabe79fa2d51dd0268afbb8ba6b01de9dfcdd3c",
"5d0a9d6d9f197c091bf054fac9cb60e11ec723d6610ed8578e617b4d46cb43d5",
}
keys = [][]byte{}
values = [][]byte{}
for i := 0; i < len(testvectorKeys); i++ {
key, err := hex.DecodeString(testvectorKeys[i])
c.Assert(err, qt.IsNil)
keys = append(keys, key)
values = append(values, []byte{0})
}
for i := 0; i < len(keys); i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err = tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTestVector2(t *testing.T) {
// test vector with unbalanced tree
c := qt.New(t)
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
bLen := tree1.HashFunction().Len()
var keys, values [][]byte
// 1
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(1))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(1))))
// 2
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(2))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(2))))
// 3
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(3))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(3))))
// 5
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(5))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(5))))
for i := 0; i < len(keys); i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTestVector3(t *testing.T) {
// test vector with unbalanced tree
c := qt.New(t)
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
bLen := tree1.HashFunction().Len()
var keys, values [][]byte
// 0
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(0))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(0))))
// 3
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(3))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(3))))
// 7
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(7))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(7))))
// 135
keys = append(keys, BigIntToBytes(bLen, big.NewInt(int64(135))))
values = append(values, BigIntToBytes(bLen, big.NewInt(int64(135))))
for i := 0; i < len(keys); i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
//
// tree1.PrintGraphvizFirstNLevels(nil, 100)
// tree2.PrintGraphvizFirstNLevels(nil, 100)
}
func TestAddBatchTreeEmptyRandomKeys(t *testing.T) {
c := qt.New(t)
nLeafs := 8
database1, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err := NewTree(Config{database1, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
keys = append(keys, randomBytes(32))
values = append(values, randomBytes(32))
}
for i := 0; i < len(keys); i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTreeNotEmptyFewLeafs(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
initialNLeafs := 99
tree1, tree2 := testInit(c, initialNLeafs)
tree2.dbgInit()
bLen := tree1.HashFunction().Len()
start := time.Now()
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree1.Add(k, v); err != nil {
t.Fatal(err)
}
}
time1 := time.Since(start)
// prepare the key-values to be added
var keys, values [][]byte
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
start = time.Now()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
time2 := time.Since(start)
if debug {
debugTime("Case tree not empty w/ few leafs, AddBatch", time1, time2)
printTestContext(" ", nLeafs, "Poseidon", "memory")
tree2.dbg.print(" ")
}
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTreeNotEmptyEnoughLeafs(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
initialNLeafs := 500
tree1, tree2 := testInit(c, initialNLeafs)
tree2.dbgInit()
bLen := tree1.HashFunction().Len()
start := time.Now()
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree1.Add(k, v); err != nil {
t.Fatal(err)
}
}
time1 := time.Since(start)
// prepare the key-values to be added
var keys, values [][]byte
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
start = time.Now()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
time2 := time.Since(start)
if debug {
debugTime("Case tree not empty w/ enough leafs, AddBatch", time1, time2)
printTestContext(" ", nLeafs, "Poseidon", "memory")
tree2.dbg.print(" ")
}
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTreeEmptyRepeatedLeafs(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
nRepeatedKeys := 99
tree1, tree2 := testInit(c, 0)
bLen := tree1.HashFunction().Len()
// prepare the key-values to be added
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
// add repeated key-values
for i := 0; i < nRepeatedKeys; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
// add the non-repeated key-values in tree1 with .Add loop
for i := 0; i < nLeafs; i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, nRepeatedKeys)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchTreeNotEmptyFewLeafsRepeatedLeafs(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
initialNLeafs := 99
tree1, tree2 := testInit(c, initialNLeafs)
bLen := tree1.HashFunction().Len()
// prepare the key-values to be added
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
// add the keys that will be existing when AddBatch is called
for i := initialNLeafs; i < nLeafs; i++ {
if err := tree1.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Assert(len(invalids), qt.Equals, initialNLeafs)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestSplitInBuckets(t *testing.T) {
c := qt.New(t)
bLen := HashFunctionPoseidon.Len()
nLeafs := 16
kvs := make([]kv, nLeafs)
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keyPath := make([]byte, 32)
copy(keyPath[:], k)
kvs[i].pos = i
kvs[i].keyPath = k
kvs[i].k = k
kvs[i].v = v
}
// check keyToBucket results for 4 buckets & 8 keys
c.Assert(keyToBucket(kvs[0].k, 4), qt.Equals, 0)
c.Assert(keyToBucket(kvs[1].k, 4), qt.Equals, 2)
c.Assert(keyToBucket(kvs[2].k, 4), qt.Equals, 1)
c.Assert(keyToBucket(kvs[3].k, 4), qt.Equals, 3)
c.Assert(keyToBucket(kvs[4].k, 4), qt.Equals, 0)
c.Assert(keyToBucket(kvs[5].k, 4), qt.Equals, 2)
c.Assert(keyToBucket(kvs[6].k, 4), qt.Equals, 1)
c.Assert(keyToBucket(kvs[7].k, 4), qt.Equals, 3)
// check keyToBucket results for 8 buckets & 8 keys
c.Assert(keyToBucket(kvs[0].k, 8), qt.Equals, 0)
c.Assert(keyToBucket(kvs[1].k, 8), qt.Equals, 4)
c.Assert(keyToBucket(kvs[2].k, 8), qt.Equals, 2)
c.Assert(keyToBucket(kvs[3].k, 8), qt.Equals, 6)
c.Assert(keyToBucket(kvs[4].k, 8), qt.Equals, 1)
c.Assert(keyToBucket(kvs[5].k, 8), qt.Equals, 5)
c.Assert(keyToBucket(kvs[6].k, 8), qt.Equals, 3)
c.Assert(keyToBucket(kvs[7].k, 8), qt.Equals, 7)
buckets := splitInBuckets(kvs, 4)
expected := [][]string{
{
"00000000", // bucket 0
"08000000",
"04000000",
"0c000000",
},
{
"02000000", // bucket 1
"0a000000",
"06000000",
"0e000000",
},
{
"01000000", // bucket 2
"09000000",
"05000000",
"0d000000",
},
{
"03000000", // bucket 3
"0b000000",
"07000000",
"0f000000",
},
}
for i := 0; i < len(buckets); i++ {
sortKvs(buckets[i])
c.Assert(len(buckets[i]), qt.Equals, len(expected[i]))
for j := 0; j < len(buckets[i]); j++ {
c.Check(hex.EncodeToString(buckets[i][j].k[:4]),
qt.Equals, expected[i][j])
}
}
}
// compareBytes compares byte slices where the bytes are compared from left to
// right and each byte is compared by bit from right to left
func compareBytes(a, b []byte) bool {
// WIP
for i := 0; i < len(a); i++ {
for j := 0; j < 8; j++ {
aBit := a[i] & (1 << j)
bBit := b[i] & (1 << j)
if aBit > bBit {
return false
} else if aBit < bBit {
return true
}
}
}
return false
}
// sortKvs sorts the kv by path
func sortKvs(kvs []kv) {
sort.Slice(kvs, func(i, j int) bool {
return compareBytes(kvs[i].keyPath, kvs[j].keyPath)
})
}
func TestAddBatchTreeNotEmpty(t *testing.T) {
c := qt.New(t)
nLeafs := 4096
initialNLeafs := 900
tree1, tree2 := testInit(c, initialNLeafs)
tree2.dbgInit()
bLen := tree1.HashFunction().Len()
start := time.Now()
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree1.Add(k, v); err != nil {
t.Fatal(err)
}
}
time1 := time.Since(start)
// prepare the key-values to be added
var keys, values [][]byte
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
start = time.Now()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
time2 := time.Since(start)
if debug {
debugTime("Case tree not empty, AddBatch", time1, time2)
printTestContext(" ", nLeafs, "Poseidon", "memory")
tree2.dbg.print(" ")
}
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestAddBatchNotEmptyUnbalanced(t *testing.T) {
c := qt.New(t)
nLeafs := 4096
initialNLeafs := 900
tree1, _ := testInit(c, initialNLeafs)
bLen := tree1.HashFunction().Len()
start := time.Now()
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
if err := tree1.Add(k, v); err != nil {
t.Fatal(err)
}
}
time1 := time.Since(start)
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
tree2.dbgInit()
var keys, values [][]byte
// add the initial leafs to fill a bit the tree before calling the
// AddBatch method
for i := 0; i < initialNLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
// use only the keys of one bucket, store the not used ones for
// later
if i%4 != 0 {
keys = append(keys, k)
values = append(values, v)
continue
}
if err := tree2.Add(k, v); err != nil {
t.Fatal(err)
}
}
for i := initialNLeafs; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
keys = append(keys, k)
values = append(values, v)
}
start = time.Now()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
time2 := time.Since(start)
if debug {
debugTime("Case tree not empty & unbalanced, AddBatch", time1, time2)
printTestContext(" ", nLeafs, "Poseidon", "memory")
tree2.dbg.print(" ")
}
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree1, tree2)
}
func TestFlp2(t *testing.T) {
c := qt.New(t)
c.Assert(flp2(31), qt.Equals, 16)
c.Assert(flp2(32), qt.Equals, 32)
c.Assert(flp2(33), qt.Equals, 32)
c.Assert(flp2(63), qt.Equals, 32)
c.Assert(flp2(64), qt.Equals, 64)
c.Assert(flp2(9000), qt.Equals, 8192)
}
func TestAddBatchBench(t *testing.T) {
nLeafs := 50_000
printTestContext("TestAddBatchBench: ", nLeafs, "Blake2b", "pebbledb")
// prepare inputs
var ks, vs [][]byte
for i := 0; i < nLeafs; i++ {
k := randomBytes(32)
v := randomBytes(32)
ks = append(ks, k)
vs = append(vs, v)
}
benchAdd(t, ks, vs)
benchAddBatch(t, ks, vs)
}
func benchAdd(t *testing.T, ks, vs [][]byte) {
c := qt.New(t)
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
start := time.Now()
for i := 0; i < len(ks); i++ {
err = tree.Add(ks[i], vs[i])
c.Assert(err, qt.IsNil)
}
if debug {
printRes(" Add loop", time.Since(start))
tree.dbg.print(" ")
}
}
func benchAddBatch(t *testing.T, ks, vs [][]byte) {
c := qt.New(t)
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
tree.dbgInit()
start := time.Now()
invalids, err := tree.AddBatch(ks, vs)
if debug {
printRes(" AddBatch", time.Since(start))
tree.dbg.print(" ")
}
c.Assert(err, qt.IsNil)
c.Assert(len(invalids), qt.Equals, 0)
}
func TestDbgStats(t *testing.T) {
c := qt.New(t)
nLeafs := 10_000
// prepare inputs
var ks, vs [][]byte
for i := 0; i < nLeafs; i++ {
k := randomBytes(32)
v := randomBytes(32)
ks = append(ks, k)
vs = append(vs, v)
}
// 1
database1, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree1, err := NewTree(Config{database1, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree1.db.Close() //nolint:errcheck
tree1.dbgInit()
for i := 0; i < len(ks); i++ {
err = tree1.Add(ks[i], vs[i])
c.Assert(err, qt.IsNil)
}
// 2
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
tree2.dbgInit()
invalids, err := tree2.AddBatch(ks, vs)
c.Assert(err, qt.IsNil)
c.Assert(len(invalids), qt.Equals, 0)
// 3
database3, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree3, err := NewTree(Config{database3, 256, DefaultThresholdNLeafs,
HashFunctionBlake2b})
c.Assert(err, qt.IsNil)
defer tree3.db.Close() //nolint:errcheck
tree3.dbgInit()
// add few key-values
// invalids, err = tree3.AddBatch(ks[:], vs[:])
invalids, err = tree3.AddBatch(ks[:1000], vs[:1000])
c.Assert(err, qt.IsNil)
c.Assert(len(invalids), qt.Equals, 0)
// add the rest of key-values
invalids, err = tree3.AddBatch(ks[1000:], vs[1000:])
c.Assert(err, qt.IsNil)
c.Assert(len(invalids), qt.Equals, 0)
checkRoots(c, tree1, tree2)
checkRoots(c, tree1, tree3)
if debug {
fmt.Println("TestDbgStats")
tree1.dbg.print(" add in loop in emptyTree ")
tree2.dbg.print(" addbatch caseEmptyTree ")
tree3.dbg.print(" addbatch caseNotEmptyTree ")
}
}
func TestLoadVT(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
database := memdb.New()
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := randomBytes(31)
v := randomBytes(31)
keys = append(keys, k)
values = append(values, v)
}
invalids, err := tree.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
vt, err := tree.loadVT()
c.Assert(err, qt.IsNil)
_, err = vt.computeHashes()
c.Assert(err, qt.IsNil)
// check that tree & vt roots are equal
root, err := tree.Root()
c.Assert(err, qt.IsNil)
c.Check(root, qt.DeepEquals, vt.root.h)
}
// TestAddKeysWithEmptyValues calls AddBatch giving an array of empty values
func TestAddKeysWithEmptyValues(t *testing.T) {
c := qt.New(t)
nLeafs := 1024
database, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree, err := NewTree(Config{database, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree.db.Close() //nolint:errcheck
bLen := 32
var keys, values [][]byte
for i := 0; i < nLeafs; i++ {
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
v := []byte{}
keys = append(keys, k)
values = append(values, v)
}
for i := 0; i < nLeafs; i++ {
if err := tree.Add(keys[i], values[i]); err != nil {
t.Fatal(err)
}
}
database2, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree2, err := NewTree(Config{database2, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree2.db.Close() //nolint:errcheck
tree2.dbgInit()
invalids, err := tree2.AddBatch(keys, values)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
// check that both trees roots are equal
checkRoots(c, tree, tree2)
// use tree3 to add nil value array
database3, err := pebbledb.New(db.Options{Path: c.TempDir()})
c.Assert(err, qt.IsNil)
tree3, err := NewTree(Config{database3, 256, DefaultThresholdNLeafs,
HashFunctionPoseidon})
c.Assert(err, qt.IsNil)
defer tree3.db.Close() //nolint:errcheck
invalids, err = tree3.AddBatch(keys, nil)
c.Assert(err, qt.IsNil)
c.Check(len(invalids), qt.Equals, 0)
checkRoots(c, tree, tree3)
kAux, proofV, siblings, existence, err := tree2.GenProof(keys[9])
c.Assert(err, qt.IsNil)
c.Assert(proofV, qt.DeepEquals, values[9])