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mutable_tree_test.go
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package iavl
import (
"fmt"
"runtime"
"testing"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/libs/db"
)
func BenchmarkMutableTree_Set(b *testing.B) {
db := db.NewDB("test", db.MemDBBackend, "")
t := NewMutableTree(db, 100000)
for i := 0; i < 1000000; i++ {
t.Set(randBytes(10), []byte{})
}
b.ReportAllocs()
runtime.GC()
b.ResetTimer()
for i := 0; i < b.N; i++ {
t.Set(randBytes(10), []byte{})
}
}
func TestMutableTree_SetAndPrune(t *testing.T) {
db := db.NewDB("test", db.MemDBBackend, "")
tree := NewMutableTreeWithOpts(db, 0, 5, 5)
tree.Set([]byte("k1"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err := tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(1), version)
require.Equal(t, 1, tree.memoryNodeSize())
tree.Set([]byte("k2"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(2), version)
require.Equal(t, 3, tree.memoryNodeSize())
tree.Set([]byte("k3"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(3), version)
require.Equal(t, 5, tree.memoryNodeSize())
tree.Set([]byte("k4"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(4), version)
require.Equal(t, 7, tree.memoryNodeSize())
tree.Set([]byte("k5"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(5), version)
require.Equal(t, 9, tree.memoryNodeSize())
tree.Set([]byte("k6"), []byte("v1"))
tree.Set([]byte("k7"), []byte("v1"))
tree.Set([]byte("k8"), []byte("v1"))
tree.Set([]byte("k9"), []byte("v1"))
tree.Set([]byte("k10"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(6), version)
require.Equal(t, 19, tree.memoryNodeSize())
tree.Set([]byte("k11"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(7), version)
require.Equal(t, 11, tree.memoryNodeSize())
PrintTreeByLevel(tree.ImmutableTree)
fmt.Println()
tree.Set([]byte("k12"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
_, version, err = tree.SaveVersion()
require.NoError(t, err)
require.Equal(t, int64(8), version)
fmt.Println()
PrintTreeByLevel(tree.ImmutableTree)
}
func TestMutableTree_RemoveAndPrune(t *testing.T) {
db := db.NewDB("test", db.MemDBBackend, "")
tree := NewMutableTreeWithOpts(db, 0, 5, 5)
tree.Set([]byte("k1"), []byte("v1"))
tree.Set([]byte("k2"), []byte("v1"))
tree.Set([]byte("k3"), []byte("v1"))
tree.Set([]byte("k4"), []byte("v1"))
tree.Set([]byte("k5"), []byte("v1"))
//tree.Set([]byte("k6"), []byte("v1"))
//tree.Set([]byte("k7"), []byte("v1"))
//tree.Set([]byte("k8"), []byte("v1"))
//tree.Set([]byte("k9"), []byte("v1"))
PrintTreeByLevel(tree.ImmutableTree)
tree.SaveVersion()
PrintTreeByLevel(tree.ImmutableTree)
tree.SaveVersion()
PrintTreeByLevel(tree.ImmutableTree)
tree.Remove([]byte("k5"))
tree.SaveVersion()
PrintTreeByLevel(tree.ImmutableTree)
tree.Remove([]byte("k2"))
PrintTreeByLevel(tree.ImmutableTree)
tree.SaveVersion()
}