mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-29 23:33:37 +00:00
362 lines
9.9 KiB
Go
362 lines
9.9 KiB
Go
package mpt
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/core/storage"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestBatchAdd(t *testing.T) {
|
|
b := new(Batch)
|
|
b.Add([]byte{1}, []byte{2})
|
|
b.Add([]byte{2, 16}, []byte{3})
|
|
b.Add([]byte{2, 0}, []byte{4})
|
|
b.Add([]byte{0, 1}, []byte{5})
|
|
b.Add([]byte{2, 0}, []byte{6})
|
|
expected := []keyValue{
|
|
{[]byte{0, 0, 0, 1}, []byte{5}},
|
|
{[]byte{0, 1}, []byte{2}},
|
|
{[]byte{0, 2, 0, 0}, []byte{6}},
|
|
{[]byte{0, 2, 1, 0}, []byte{3}},
|
|
}
|
|
require.Equal(t, expected, b.kv)
|
|
}
|
|
|
|
type pairs = [][2][]byte
|
|
|
|
func testIncompletePut(t *testing.T, ps pairs, n int, tr1, tr2 *Trie) {
|
|
var b Batch
|
|
for i, p := range ps {
|
|
if i < n {
|
|
if p[1] == nil {
|
|
require.NoError(t, tr1.Delete(p[0]), "item %d", i)
|
|
} else {
|
|
require.NoError(t, tr1.Put(p[0], p[1]), "item %d", i)
|
|
}
|
|
} else if i == n {
|
|
if p[1] == nil {
|
|
require.Error(t, tr1.Delete(p[0]), "item %d", i)
|
|
} else {
|
|
require.Error(t, tr1.Put(p[0], p[1]), "item %d", i)
|
|
}
|
|
}
|
|
b.Add(p[0], p[1])
|
|
}
|
|
|
|
num, err := tr2.PutBatch(b)
|
|
if n == len(ps) {
|
|
require.NoError(t, err)
|
|
} else {
|
|
require.Error(t, err)
|
|
}
|
|
require.Equal(t, n, num)
|
|
require.Equal(t, tr1.StateRoot(), tr2.StateRoot())
|
|
|
|
t.Run("test restore", func(t *testing.T) {
|
|
tr2.Flush()
|
|
tr3 := NewTrie(NewHashNode(tr2.StateRoot()), false, storage.NewMemCachedStore(tr2.Store))
|
|
for _, p := range ps[:n] {
|
|
val, err := tr3.Get(p[0])
|
|
if p[1] == nil {
|
|
require.Error(t, err)
|
|
continue
|
|
}
|
|
require.NoError(t, err, "key: %s", hex.EncodeToString(p[0]))
|
|
require.Equal(t, p[1], val)
|
|
}
|
|
})
|
|
}
|
|
|
|
func testPut(t *testing.T, ps pairs, tr1, tr2 *Trie) {
|
|
testIncompletePut(t, ps, len(ps), tr1, tr2)
|
|
}
|
|
|
|
func TestTrie_PutBatchLeaf(t *testing.T) {
|
|
prepareLeaf := func(t *testing.T) (*Trie, *Trie) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
require.NoError(t, tr1.Put([]byte{0}, []byte("value")))
|
|
require.NoError(t, tr2.Put([]byte{0}, []byte("value")))
|
|
return tr1, tr2
|
|
}
|
|
|
|
t.Run("remove", func(t *testing.T) {
|
|
tr1, tr2 := prepareLeaf(t)
|
|
var ps = pairs{{[]byte{0}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("empty value", func(t *testing.T) {
|
|
tr1, tr2 := prepareLeaf(t)
|
|
var ps = pairs{{[]byte{0}, []byte{}}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("replace", func(t *testing.T) {
|
|
tr1, tr2 := prepareLeaf(t)
|
|
var ps = pairs{{[]byte{0}, []byte("replace")}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("remove and replace", func(t *testing.T) {
|
|
tr1, tr2 := prepareLeaf(t)
|
|
var ps = pairs{
|
|
{[]byte{0}, nil},
|
|
{[]byte{0, 2}, []byte("replace2")},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("empty value and replace", func(t *testing.T) {
|
|
tr1, tr2 := prepareLeaf(t)
|
|
var ps = pairs{
|
|
{[]byte{0}, []byte{}},
|
|
{[]byte{0, 2}, []byte("replace2")},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
}
|
|
|
|
func TestTrie_PutBatchExtension(t *testing.T) {
|
|
prepareExtension := func(t *testing.T) (*Trie, *Trie) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
require.NoError(t, tr1.Put([]byte{1, 2}, []byte("value1")))
|
|
require.NoError(t, tr2.Put([]byte{1, 2}, []byte("value1")))
|
|
return tr1, tr2
|
|
}
|
|
|
|
t.Run("split, key len > 1", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{{[]byte{2, 3}, []byte("value2")}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("split, key len = 1", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{{[]byte{1, 3}, []byte("value2")}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("add to next", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{{[]byte{1, 2, 3}, []byte("value2")}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("add to next with leaf", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{
|
|
{[]byte{0}, []byte("value3")},
|
|
{[]byte{1, 2, 3}, []byte("value2")},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("remove value", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{{[]byte{1, 2}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("empty value", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{{[]byte{1, 2}, []byte{}}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("add to next, merge extension", func(t *testing.T) {
|
|
tr1, tr2 := prepareExtension(t)
|
|
var ps = pairs{
|
|
{[]byte{1, 2}, nil},
|
|
{[]byte{1, 2, 3}, []byte("value2")},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
}
|
|
|
|
func TestTrie_PutBatchBranch(t *testing.T) {
|
|
prepareBranch := func(t *testing.T) (*Trie, *Trie) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
require.NoError(t, tr1.Put([]byte{0x00, 2}, []byte("value1")))
|
|
require.NoError(t, tr2.Put([]byte{0x00, 2}, []byte("value1")))
|
|
require.NoError(t, tr1.Put([]byte{0x10, 3}, []byte("value2")))
|
|
require.NoError(t, tr2.Put([]byte{0x10, 3}, []byte("value2")))
|
|
return tr1, tr2
|
|
}
|
|
|
|
t.Run("simple add", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
var ps = pairs{{[]byte{0x20, 4}, []byte("value3")}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("remove 1, transform to extension", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
var ps = pairs{{[]byte{0x00, 2}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
|
|
t.Run("non-empty child is hash node", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
tr1.Flush()
|
|
tr1.Collapse(1)
|
|
tr2.Flush()
|
|
tr2.Collapse(1)
|
|
|
|
var ps = pairs{{[]byte{0x00, 2}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
require.IsType(t, (*ExtensionNode)(nil), tr1.root)
|
|
})
|
|
t.Run("non-empty child is last node", func(t *testing.T) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
require.NoError(t, tr1.Put([]byte{0x00, 2}, []byte("value1")))
|
|
require.NoError(t, tr2.Put([]byte{0x00, 2}, []byte("value1")))
|
|
require.NoError(t, tr1.Put([]byte{0x00}, []byte("value2")))
|
|
require.NoError(t, tr2.Put([]byte{0x00}, []byte("value2")))
|
|
|
|
tr1.Flush()
|
|
tr1.Collapse(1)
|
|
tr2.Flush()
|
|
tr2.Collapse(1)
|
|
|
|
var ps = pairs{{[]byte{0x00, 2}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
})
|
|
t.Run("incomplete put, transform to extension", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
var ps = pairs{
|
|
{[]byte{0x00, 2}, nil},
|
|
{[]byte{0x20, 2}, nil},
|
|
{[]byte{0x30, 3}, []byte("won't be put")},
|
|
}
|
|
testIncompletePut(t, ps, 3, tr1, tr2)
|
|
})
|
|
t.Run("incomplete put, transform to empty", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
var ps = pairs{
|
|
{[]byte{0x00, 2}, nil},
|
|
{[]byte{0x10, 3}, nil},
|
|
{[]byte{0x20, 2}, nil},
|
|
{[]byte{0x30, 3}, []byte("won't be put")},
|
|
}
|
|
testIncompletePut(t, ps, 4, tr1, tr2)
|
|
})
|
|
t.Run("remove 2, become empty", func(t *testing.T) {
|
|
tr1, tr2 := prepareBranch(t)
|
|
var ps = pairs{
|
|
{[]byte{0x00, 2}, nil},
|
|
{[]byte{0x10, 3}, nil},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
}
|
|
|
|
func TestTrie_PutBatchHash(t *testing.T) {
|
|
prepareHash := func(t *testing.T) (*Trie, *Trie) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
require.NoError(t, tr1.Put([]byte{0x10}, []byte("value1")))
|
|
require.NoError(t, tr2.Put([]byte{0x10}, []byte("value1")))
|
|
require.NoError(t, tr1.Put([]byte{0x20}, []byte("value2")))
|
|
require.NoError(t, tr2.Put([]byte{0x20}, []byte("value2")))
|
|
tr1.Flush()
|
|
tr2.Flush()
|
|
return tr1, tr2
|
|
}
|
|
|
|
t.Run("good", func(t *testing.T) {
|
|
tr1, tr2 := prepareHash(t)
|
|
var ps = pairs{{[]byte{2}, []byte("value2")}}
|
|
tr1.Collapse(0)
|
|
tr1.Collapse(0)
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("incomplete, second hash not found", func(t *testing.T) {
|
|
tr1, tr2 := prepareHash(t)
|
|
var ps = pairs{
|
|
{[]byte{0x10}, []byte("replace1")},
|
|
{[]byte{0x20}, []byte("replace2")},
|
|
}
|
|
tr1.Collapse(1)
|
|
tr2.Collapse(1)
|
|
key := makeStorageKey(tr1.root.(*BranchNode).Children[2].Hash())
|
|
require.NoError(t, tr1.Store.Delete(key))
|
|
require.NoError(t, tr2.Store.Delete(key))
|
|
testIncompletePut(t, ps, 1, tr1, tr2)
|
|
})
|
|
}
|
|
|
|
func TestTrie_PutBatchEmpty(t *testing.T) {
|
|
t.Run("good", func(t *testing.T) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
var ps = pairs{
|
|
{[]byte{0}, []byte("value0")},
|
|
{[]byte{1}, []byte("value1")},
|
|
{[]byte{3}, []byte("value3")},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
})
|
|
t.Run("incomplete", func(t *testing.T) {
|
|
var ps = pairs{
|
|
{[]byte{0}, []byte("replace0")},
|
|
{[]byte{1}, []byte("replace1")},
|
|
{[]byte{2}, nil},
|
|
{[]byte{3}, []byte("replace3")},
|
|
}
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
testIncompletePut(t, ps, 4, tr1, tr2)
|
|
})
|
|
}
|
|
|
|
// For the sake of coverage.
|
|
func TestTrie_InvalidNodeType(t *testing.T) {
|
|
tr := NewTrie(EmptyNode{}, false, newTestStore())
|
|
var b Batch
|
|
b.Add([]byte{1}, []byte("value"))
|
|
tr.root = Node(nil)
|
|
require.Panics(t, func() { _, _ = tr.PutBatch(b) })
|
|
}
|
|
|
|
func TestTrie_PutBatch(t *testing.T) {
|
|
tr1 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
tr2 := NewTrie(EmptyNode{}, false, newTestStore())
|
|
var ps = pairs{
|
|
{[]byte{1}, []byte{1}},
|
|
{[]byte{2}, []byte{3}},
|
|
{[]byte{4}, []byte{5}},
|
|
}
|
|
testPut(t, ps, tr1, tr2)
|
|
|
|
ps = pairs{[2][]byte{{4}, {6}}}
|
|
testPut(t, ps, tr1, tr2)
|
|
|
|
ps = pairs{[2][]byte{{4}, nil}}
|
|
testPut(t, ps, tr1, tr2)
|
|
|
|
testPut(t, pairs{}, tr1, tr2)
|
|
}
|
|
|
|
var _ = printNode
|
|
|
|
// This function is unused, but is helpful for debugging
|
|
// as it provides more readable Trie representation compared to
|
|
// `spew.Dump()`.
|
|
func printNode(prefix string, n Node) {
|
|
switch tn := n.(type) {
|
|
case EmptyNode:
|
|
fmt.Printf("%s empty\n", prefix)
|
|
return
|
|
case *HashNode:
|
|
fmt.Printf("%s %s\n", prefix, tn.Hash().StringLE())
|
|
case *BranchNode:
|
|
for i, c := range tn.Children {
|
|
if isEmpty(c) {
|
|
continue
|
|
}
|
|
fmt.Printf("%s [%2d] ->\n", prefix, i)
|
|
printNode(prefix+" ", c)
|
|
}
|
|
case *ExtensionNode:
|
|
fmt.Printf("%s extension-> %s\n", prefix, hex.EncodeToString(tn.key))
|
|
printNode(prefix+" ", tn.next)
|
|
case *LeafNode:
|
|
fmt.Printf("%s leaf-> %s\n", prefix, hex.EncodeToString(tn.value))
|
|
}
|
|
}
|