bsc/ptrie/trie_test.go
2014-11-18 12:18:27 +01:00

156 lines
3.5 KiB
Go

package ptrie
import (
"bytes"
"fmt"
"testing"
"github.com/ethereum/go-ethereum/ethutil"
)
func TestInsert(t *testing.T) {
trie := NewEmpty()
trie.UpdateString("doe", "reindeer")
trie.UpdateString("dog", "puppy")
trie.UpdateString("dogglesworth", "cat")
exp := ethutil.Hex2Bytes("8aad789dff2f538bca5d8ea56e8abe10f4c7ba3a5dea95fea4cd6e7c3a1168d3")
root := trie.Hash()
if !bytes.Equal(root, exp) {
t.Errorf("exp %x got %x", exp, root)
}
trie = NewEmpty()
trie.UpdateString("A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
exp = ethutil.Hex2Bytes("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
root = trie.Hash()
if !bytes.Equal(root, exp) {
t.Errorf("exp %x got %x", exp, root)
}
}
func TestGet(t *testing.T) {
trie := NewEmpty()
trie.UpdateString("doe", "reindeer")
trie.UpdateString("dog", "puppy")
trie.UpdateString("dogglesworth", "cat")
res := trie.GetString("dog")
if !bytes.Equal(res, []byte("puppy")) {
t.Errorf("expected puppy got %x", res)
}
unknown := trie.GetString("unknown")
if unknown != nil {
t.Errorf("expected nil got %x", unknown)
}
}
func TestDelete(t *testing.T) {
trie := NewEmpty()
vals := []struct{ k, v string }{
{"do", "verb"},
{"ether", "wookiedoo"},
{"horse", "stallion"},
{"shaman", "horse"},
{"doge", "coin"},
{"ether", ""},
{"dog", "puppy"},
{"shaman", ""},
}
for _, val := range vals {
trie.UpdateString(val.k, val.v)
}
hash := trie.Hash()
exp := ethutil.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
if !bytes.Equal(hash, exp) {
t.Errorf("expected %x got %x", exp, hash)
}
}
func TestReplication(t *testing.T) {
trie := NewEmpty()
vals := []struct{ k, v string }{
{"do", "verb"},
{"ether", "wookiedoo"},
{"horse", "stallion"},
{"shaman", "horse"},
{"doge", "coin"},
{"ether", ""},
{"dog", "puppy"},
{"shaman", ""},
{"somethingveryoddindeedthis is", "myothernodedata"},
}
for _, val := range vals {
trie.UpdateString(val.k, val.v)
}
trie.Hash()
trie2 := New(trie.roothash, trie.backend)
if string(trie2.GetString("horse")) != "stallion" {
t.Error("expected to have harse => stallion")
}
hash := trie2.Hash()
exp := trie.Hash()
if !bytes.Equal(hash, exp) {
t.Errorf("root failure. expected %x got %x", exp, hash)
}
}
func BenchmarkGets(b *testing.B) {
trie := NewEmpty()
vals := []struct{ k, v string }{
{"do", "verb"},
{"ether", "wookiedoo"},
{"horse", "stallion"},
{"shaman", "horse"},
{"doge", "coin"},
{"ether", ""},
{"dog", "puppy"},
{"shaman", ""},
{"somethingveryoddindeedthis is", "myothernodedata"},
}
for _, val := range vals {
trie.UpdateString(val.k, val.v)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
trie.Get([]byte("horse"))
}
}
func BenchmarkUpdate(b *testing.B) {
trie := NewEmpty()
b.ResetTimer()
for i := 0; i < b.N; i++ {
trie.UpdateString(fmt.Sprintf("aaaaaaaaa%d", base, i), "value")
}
trie.Hash()
}
// Not actual test
func TestOutput(t *testing.T) {
base := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
trie := NewEmpty()
for i := 0; i < 50; i++ {
trie.UpdateString(fmt.Sprintf("%s%d", base, i), "valueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee")
}
trie.Hash()
fmt.Println("############################## FULL ################################")
fmt.Println(trie.root)
trie2 := New(trie.roothash, trie.backend)
trie2.GetString(base + "20")
fmt.Println("############################## SMALL ################################")
fmt.Println(trie2.root)
}