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538 lines
16 KiB
538 lines
16 KiB
package arbo
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import (
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"encoding/hex"
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"math/big"
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"testing"
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"time"
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qt "github.com/frankban/quicktest"
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"go.vocdoni.io/dvote/db"
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"go.vocdoni.io/dvote/db/badgerdb"
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)
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func checkRootBIString(c *qt.C, tree *Tree, expected string) {
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root, err := tree.Root()
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c.Assert(err, qt.IsNil)
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rootBI := BytesToBigInt(root)
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c.Check(rootBI.String(), qt.Equals, expected)
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}
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func TestDBTx(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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wTx := database.WriteTx()
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_, err = wTx.Get([]byte("a"))
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c.Assert(err, qt.Equals, db.ErrKeyNotFound)
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err = wTx.Set([]byte("a"), []byte("b"))
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c.Assert(err, qt.IsNil)
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v, err := wTx.Get([]byte("a"))
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c.Assert(err, qt.IsNil)
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c.Assert(v, qt.DeepEquals, []byte("b"))
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}
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func TestAddTestVectors(t *testing.T) {
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c := qt.New(t)
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// Poseidon test vectors generated using https://github.com/iden3/circomlib smt.js
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testVectorsPoseidon := []string{
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"0000000000000000000000000000000000000000000000000000000000000000",
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"13578938674299138072471463694055224830892726234048532520316387704878000008795",
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"5412393676474193513566895793055462193090331607895808993925969873307089394741",
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"14204494359367183802864593755198662203838502594566452929175967972147978322084",
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}
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testAdd(c, HashFunctionPoseidon, testVectorsPoseidon)
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testVectorsSha256 := []string{
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"0000000000000000000000000000000000000000000000000000000000000000",
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"46910109172468462938850740851377282682950237270676610513794735904325820156367",
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"59481735341404520835410489183267411392292882901306595567679529387376287440550",
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"20573794434149960984975763118181266662429997821552560184909083010514790081771",
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}
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testAdd(c, HashFunctionSha256, testVectorsSha256)
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}
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func testAdd(c *qt.C, hashFunc HashFunction, testVectors []string) {
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 10, hashFunc)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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root, err := tree.Root()
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c.Assert(err, qt.IsNil)
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c.Check(hex.EncodeToString(root), qt.Equals, testVectors[0])
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bLen := hashFunc.Len()
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err = tree.Add(
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BigIntToBytes(bLen, big.NewInt(1)),
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BigIntToBytes(bLen, big.NewInt(2)))
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c.Assert(err, qt.IsNil)
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checkRootBIString(c, tree, testVectors[1])
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err = tree.Add(
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BigIntToBytes(bLen, big.NewInt(33)),
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BigIntToBytes(bLen, big.NewInt(44)))
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c.Assert(err, qt.IsNil)
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checkRootBIString(c, tree, testVectors[2])
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err = tree.Add(
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BigIntToBytes(bLen, big.NewInt(1234)),
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BigIntToBytes(bLen, big.NewInt(9876)))
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c.Assert(err, qt.IsNil)
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checkRootBIString(c, tree, testVectors[3])
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}
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func TestAddBatch(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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for i := 0; i < 1000; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(0))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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checkRootBIString(c, tree,
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"296519252211642170490407814696803112091039265640052570497930797516015811235")
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database, err = badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree2, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree2.db.Close() //nolint:errcheck
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var keys, values [][]byte
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for i := 0; i < 1000; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(0))
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keys = append(keys, k)
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values = append(values, v)
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}
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indexes, err := tree2.AddBatch(keys, values)
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c.Assert(err, qt.IsNil)
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c.Check(len(indexes), qt.Equals, 0)
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checkRootBIString(c, tree2,
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"296519252211642170490407814696803112091039265640052570497930797516015811235")
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}
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func TestAddDifferentOrder(t *testing.T) {
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c := qt.New(t)
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database1, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree1, err := NewTree(database1, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree1.db.Close() //nolint:errcheck
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bLen := tree1.HashFunction().Len()
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for i := 0; i < 16; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(0))
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if err := tree1.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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database2, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree2, err := NewTree(database2, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree2.db.Close() //nolint:errcheck
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for i := 16 - 1; i >= 0; i-- {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(0))
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if err := tree2.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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root1, err := tree1.Root()
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c.Assert(err, qt.IsNil)
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root2, err := tree2.Root()
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c.Assert(err, qt.IsNil)
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c.Check(hex.EncodeToString(root2), qt.Equals, hex.EncodeToString(root1))
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c.Check(hex.EncodeToString(root1), qt.Equals,
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"3b89100bec24da9275c87bc188740389e1d5accfc7d88ba5688d7fa96a00d82f")
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}
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func TestAddRepeatedIndex(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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k := BigIntToBytes(bLen, big.NewInt(int64(3)))
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v := BigIntToBytes(bLen, big.NewInt(int64(12)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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err = tree.Add(k, v) // repeating same key-value
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c.Check(err, qt.Equals, ErrKeyAlreadyExists)
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}
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func TestUpdate(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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k := BigIntToBytes(bLen, big.NewInt(int64(20)))
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v := BigIntToBytes(bLen, big.NewInt(int64(12)))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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v = BigIntToBytes(bLen, big.NewInt(int64(11)))
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err = tree.Update(k, v)
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c.Assert(err, qt.IsNil)
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gettedKey, gettedValue, err := tree.Get(k)
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c.Assert(err, qt.IsNil)
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c.Check(gettedKey, qt.DeepEquals, k)
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c.Check(gettedValue, qt.DeepEquals, v)
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// add more leafs to the tree to do another test
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for i := 0; i < 16; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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k = BigIntToBytes(bLen, big.NewInt(int64(3)))
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v = BigIntToBytes(bLen, big.NewInt(int64(11)))
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// check that before the Update, value for 3 is !=11
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gettedKey, gettedValue, err = tree.Get(k)
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c.Assert(err, qt.IsNil)
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c.Check(gettedKey, qt.DeepEquals, k)
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c.Check(gettedValue, qt.Not(qt.DeepEquals), v)
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c.Check(gettedValue, qt.DeepEquals, BigIntToBytes(bLen, big.NewInt(6)))
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err = tree.Update(k, v)
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c.Assert(err, qt.IsNil)
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// check that after Update, the value for 3 is ==11
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gettedKey, gettedValue, err = tree.Get(k)
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c.Assert(err, qt.IsNil)
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c.Check(gettedKey, qt.DeepEquals, k)
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c.Check(gettedValue, qt.DeepEquals, v)
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c.Check(gettedValue, qt.DeepEquals, BigIntToBytes(bLen, big.NewInt(11)))
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}
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func TestAux(t *testing.T) { // TODO split in proper tests
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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k := BigIntToBytes(bLen, big.NewInt(int64(1)))
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v := BigIntToBytes(bLen, big.NewInt(int64(0)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(256)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(257)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(515)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(770)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(388)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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k = BigIntToBytes(bLen, big.NewInt(int64(900)))
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err = tree.Add(k, v)
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c.Assert(err, qt.IsNil)
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//
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// err = tree.PrintGraphviz(nil)
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// c.Assert(err, qt.IsNil)
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}
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func TestGet(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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for i := 0; i < 10; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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k := BigIntToBytes(bLen, big.NewInt(int64(7)))
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gettedKey, gettedValue, err := tree.Get(k)
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c.Assert(err, qt.IsNil)
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c.Check(gettedKey, qt.DeepEquals, k)
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c.Check(gettedValue, qt.DeepEquals, BigIntToBytes(bLen, big.NewInt(int64(7*2))))
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}
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func TestGenProofAndVerify(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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for i := 0; i < 10; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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k := BigIntToBytes(bLen, big.NewInt(int64(7)))
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v := BigIntToBytes(bLen, big.NewInt(int64(14)))
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kAux, proofV, siblings, existence, err := tree.GenProof(k)
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c.Assert(err, qt.IsNil)
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c.Assert(proofV, qt.DeepEquals, v)
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c.Assert(k, qt.DeepEquals, kAux)
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c.Assert(existence, qt.IsTrue)
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root, err := tree.Root()
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c.Assert(err, qt.IsNil)
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verif, err := CheckProof(tree.hashFunction, k, v, root, siblings)
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c.Assert(err, qt.IsNil)
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c.Check(verif, qt.IsTrue)
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}
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func TestDumpAndImportDump(t *testing.T) {
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c := qt.New(t)
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database1, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree1, err := NewTree(database1, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree1.db.Close() //nolint:errcheck
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bLen := tree1.HashFunction().Len()
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for i := 0; i < 16; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(int64(i*2)))
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if err := tree1.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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e, err := tree1.Dump(nil)
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c.Assert(err, qt.IsNil)
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database2, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree2, err := NewTree(database2, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree2.db.Close() //nolint:errcheck
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err = tree2.ImportDump(e)
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c.Assert(err, qt.IsNil)
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root1, err := tree1.Root()
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c.Assert(err, qt.IsNil)
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root2, err := tree2.Root()
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c.Assert(err, qt.IsNil)
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c.Check(root2, qt.DeepEquals, root1)
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c.Check(hex.EncodeToString(root2), qt.Equals,
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"0d93aaa3362b2f999f15e15728f123087c2eee716f01c01f56e23aae07f09f08")
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}
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func TestRWMutex(t *testing.T) {
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c := qt.New(t)
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database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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c.Assert(err, qt.IsNil)
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tree, err := NewTree(database, 100, HashFunctionPoseidon)
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c.Assert(err, qt.IsNil)
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defer tree.db.Close() //nolint:errcheck
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bLen := tree.HashFunction().Len()
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var keys, values [][]byte
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for i := 0; i < 1000; i++ {
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k := BigIntToBytes(bLen, big.NewInt(int64(i)))
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v := BigIntToBytes(bLen, big.NewInt(0))
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keys = append(keys, k)
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values = append(values, v)
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}
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go func() {
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_, err = tree.AddBatch(keys, values)
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if err != nil {
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panic(err)
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}
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}()
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time.Sleep(500 * time.Millisecond)
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k := BigIntToBytes(bLen, big.NewInt(int64(99999)))
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v := BigIntToBytes(bLen, big.NewInt(int64(99999)))
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if err := tree.Add(k, v); err != nil {
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t.Fatal(err)
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}
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}
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// TODO UPDATE
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// func TestSetGetNLeafs(t *testing.T) {
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// c := qt.New(t)
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// database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
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// c.Assert(err, qt.IsNil)
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// tree, err := NewTree(database, 100, HashFunctionPoseidon)
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// c.Assert(err, qt.IsNil)
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//
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// // 0
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// tree.dbBatch = tree.db.NewBatch()
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//
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// err = tree.setNLeafs(0)
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// c.Assert(err, qt.IsNil)
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//
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// err = tree.dbBatch.Write()
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// c.Assert(err, qt.IsNil)
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//
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// n, err := tree.GetNLeafs()
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// c.Assert(err, qt.IsNil)
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// c.Assert(n, qt.Equals, 0)
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//
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// // 1024
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// tree.dbBatch = tree.db.NewBatch()
|
|
//
|
|
// err = tree.setNLeafs(1024)
|
|
// c.Assert(err, qt.IsNil)
|
|
//
|
|
// err = tree.dbBatch.Write()
|
|
// c.Assert(err, qt.IsNil)
|
|
//
|
|
// n, err = tree.GetNLeafs()
|
|
// c.Assert(err, qt.IsNil)
|
|
// c.Assert(n, qt.Equals, 1024)
|
|
//
|
|
// // 2**64 -1
|
|
// tree.dbBatch = tree.db.NewBatch()
|
|
//
|
|
// maxUint := ^uint(0)
|
|
// maxInt := int(maxUint >> 1)
|
|
//
|
|
// err = tree.setNLeafs(maxInt)
|
|
// c.Assert(err, qt.IsNil)
|
|
//
|
|
// err = tree.dbBatch.Write()
|
|
// c.Assert(err, qt.IsNil)
|
|
//
|
|
// n, err = tree.GetNLeafs()
|
|
// c.Assert(err, qt.IsNil)
|
|
// c.Assert(n, qt.Equals, maxInt)
|
|
// }
|
|
|
|
func TestSnapshot(t *testing.T) {
|
|
c := qt.New(t)
|
|
database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
|
|
c.Assert(err, qt.IsNil)
|
|
tree, err := NewTree(database, 100, HashFunctionPoseidon)
|
|
c.Assert(err, qt.IsNil)
|
|
|
|
// fill the tree
|
|
bLen := tree.HashFunction().Len()
|
|
var keys, values [][]byte
|
|
for i := 0; i < 1000; i++ {
|
|
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
|
|
v := BigIntToBytes(bLen, big.NewInt(int64(i)))
|
|
keys = append(keys, k)
|
|
values = append(values, v)
|
|
}
|
|
indexes, err := tree.AddBatch(keys, values)
|
|
c.Assert(err, qt.IsNil)
|
|
c.Check(len(indexes), qt.Equals, 0)
|
|
checkRootBIString(c, tree,
|
|
"13742386369878513332697380582061714160370929283209286127733983161245560237407")
|
|
|
|
// do a snapshot, and expect the same root than the original tree
|
|
snapshotTree, err := tree.Snapshot(nil)
|
|
c.Assert(err, qt.IsNil)
|
|
checkRootBIString(c, snapshotTree,
|
|
"13742386369878513332697380582061714160370929283209286127733983161245560237407")
|
|
|
|
// check that the snapshotTree can not be updated
|
|
_, err = snapshotTree.AddBatch(keys, values)
|
|
c.Assert(err, qt.Equals, ErrSnapshotNotEditable)
|
|
err = snapshotTree.Add([]byte("test"), []byte("test"))
|
|
c.Assert(err, qt.Equals, ErrSnapshotNotEditable)
|
|
err = snapshotTree.Update([]byte("test"), []byte("test"))
|
|
c.Assert(err, qt.Equals, ErrSnapshotNotEditable)
|
|
err = snapshotTree.ImportDump(nil)
|
|
c.Assert(err, qt.Equals, ErrSnapshotNotEditable)
|
|
|
|
// update the original tree by adding a new key-value, and check that
|
|
// snapshotTree still has the old root, but the original tree has a new
|
|
// root
|
|
err = tree.Add([]byte("test"), []byte("test"))
|
|
c.Assert(err, qt.IsNil)
|
|
checkRootBIString(c, snapshotTree,
|
|
"13742386369878513332697380582061714160370929283209286127733983161245560237407")
|
|
checkRootBIString(c, tree,
|
|
"1025190963769001718196479367844646783678188389989148142691917685159698888868")
|
|
}
|
|
|
|
func BenchmarkAdd(b *testing.B) {
|
|
bLen := 32 // for both Poseidon & Sha256
|
|
// prepare inputs
|
|
var ks, vs [][]byte
|
|
for i := 0; i < 1000; i++ {
|
|
k := BigIntToBytes(bLen, big.NewInt(int64(i)))
|
|
v := BigIntToBytes(bLen, big.NewInt(int64(i)))
|
|
ks = append(ks, k)
|
|
vs = append(vs, v)
|
|
}
|
|
|
|
b.Run("Poseidon", func(b *testing.B) {
|
|
benchmarkAdd(b, HashFunctionPoseidon, ks, vs)
|
|
})
|
|
b.Run("Sha256", func(b *testing.B) {
|
|
benchmarkAdd(b, HashFunctionSha256, ks, vs)
|
|
})
|
|
}
|
|
|
|
func benchmarkAdd(b *testing.B, hashFunc HashFunction, ks, vs [][]byte) {
|
|
c := qt.New(b)
|
|
database, err := badgerdb.New(badgerdb.Options{Path: c.TempDir()})
|
|
c.Assert(err, qt.IsNil)
|
|
tree, err := NewTree(database, 140, hashFunc)
|
|
c.Assert(err, qt.IsNil)
|
|
defer tree.db.Close() //nolint:errcheck
|
|
|
|
for i := 0; i < len(ks); i++ {
|
|
if err := tree.Add(ks[i], vs[i]); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|