97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
package iterator_test
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
|
|
iter "github.com/vulcanize/go-eth-state-node-iterator"
|
|
fixt "github.com/vulcanize/go-eth-state-node-iterator/fixture"
|
|
)
|
|
|
|
func TestMakePaths(t *testing.T) {
|
|
var prefix []byte
|
|
for i := 0; i < 4; i++ {
|
|
nbins := uint(1) << i
|
|
paths := iter.MakePaths(prefix, nbins)
|
|
if len(paths) != int(nbins) {
|
|
t.Errorf("wrong number of paths; expected %d, have %d", nbins, len(paths))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestIterator(t *testing.T) {
|
|
edb, err := rawdb.NewLevelDBDatabaseWithFreezer(
|
|
fixt.ChainDataPath, 1024, 256, fixt.AncientDataPath,
|
|
"eth-pg-ipfs-state-snapshot", false,
|
|
)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer edb.Close()
|
|
|
|
height := uint64(1)
|
|
hash := rawdb.ReadCanonicalHash(edb, height)
|
|
header := rawdb.ReadHeader(edb, hash, height)
|
|
if header == nil {
|
|
t.Fatalf("unable to read canonical header at height %d", height)
|
|
}
|
|
sdb := state.NewDatabase(edb)
|
|
tree, err := sdb.OpenTrie(header.Root)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
t.Run("in bounds", func(t *testing.T) {
|
|
type testCase struct {
|
|
lower, upper []byte
|
|
}
|
|
cases := []testCase{
|
|
{nil, []byte{0}},
|
|
{[]byte{1}, []byte{2}},
|
|
{[]byte{3, 0}, []byte{4, 2, 0}},
|
|
{[]byte{5, 6, 9}, []byte{7}},
|
|
{[]byte{8}, []byte{8}},
|
|
{[]byte{8}, []byte{7}},
|
|
}
|
|
|
|
runCase := func(t *testing.T, tc testCase) {
|
|
it := iter.NewPrefixBoundIterator(tree, tc.lower, tc.upper)
|
|
for it.Next(true) {
|
|
if bytes.Compare(it.Path(), tc.lower) < 0 {
|
|
t.Fatalf("iterator outside lower bound: %v", it.Path())
|
|
}
|
|
if bytes.Compare(tc.upper, it.Path()) <= 0 {
|
|
t.Fatalf("iterator outside upper bound: %v", it.Path())
|
|
}
|
|
}
|
|
}
|
|
for _, tc := range cases {
|
|
t.Run("case", func(t *testing.T) { runCase(t, tc) })
|
|
}
|
|
})
|
|
|
|
t.Run("trie is covered", func(t *testing.T) {
|
|
allPaths := fixt.Block1_Paths
|
|
cases := []uint{1, 2, 4, 8, 16, 32}
|
|
runCase := func(t *testing.T, nbins uint) {
|
|
iters := iter.SubtrieIterators(tree, nbins)
|
|
ix := 0
|
|
for b := uint(0); b < nbins; b++ {
|
|
for it := iters[b]; it.Next(true); ix++ {
|
|
if !bytes.Equal(allPaths[ix], it.Path()) {
|
|
t.Fatalf("wrong path value\nexpected:\t%v\nactual:\t\t%v",
|
|
allPaths[ix], it.Path())
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for _, tc := range cases {
|
|
t.Run(fmt.Sprintf("%d bins", tc), func(t *testing.T) { runCase(t, tc) })
|
|
}
|
|
})
|
|
}
|