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basicarray_test.go
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basicarray_test.go
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/*
* Copyright 2021 Dapper Labs, Inc. All rights reserved.
*/
package atree
import (
"math"
"math/rand"
"testing"
"github.com/fxamacker/cbor/v2"
"github.com/stretchr/testify/require"
)
func newTestBasicStorage(t testing.TB) *BasicSlabStorage {
encMode, err := cbor.EncOptions{}.EncMode()
require.NoError(t, err)
decMode, err := cbor.DecOptions{}.DecMode()
require.NoError(t, err)
//baseStorage := NewInMemBaseStorage()
//storage := NewPersistentSlabStorage(baseStorage)
storage := NewBasicSlabStorage(encMode, decMode)
storage.DecodeStorable = decodeStorable
return storage
}
func TestBasicArrayAppendAndGet(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
e, err := array.Get(i)
require.NoError(t, err)
v, ok := e.(Uint64Value)
require.True(t, ok)
require.Equal(t, i, uint64(v))
}
}
func TestBasicArraySetAndGet(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
err := array.Set(i, Uint64Value(i*10))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
e, err := array.Get(i)
require.NoError(t, err)
v, ok := e.(Uint64Value)
require.True(t, ok)
require.Equal(t, i*10, uint64(v))
}
}
func TestBasicArrayInsertAndGet(t *testing.T) {
t.Run("insert-first", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Insert(0, Uint64Value(arraySize-i-1))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
e, err := array.Get(i)
require.NoError(t, err)
v, ok := e.(Uint64Value)
require.True(t, ok)
require.Equal(t, i, uint64(v))
}
})
t.Run("insert-last", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Insert(i, Uint64Value(i))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
e, err := array.Get(i)
require.NoError(t, err)
v, ok := e.(Uint64Value)
require.True(t, ok)
require.Equal(t, i, uint64(v))
}
})
t.Run("insert", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i = 2 {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
for i := uint64(1); i < arraySize; i = 2 {
err := array.Insert(i, Uint64Value(i))
require.NoError(t, err)
}
for i := uint64(0); i < arraySize; i {
e, err := array.Get(i)
require.NoError(t, err)
v, ok := e.(Uint64Value)
require.True(t, ok)
require.Equal(t, i, uint64(v))
}
})
}
func TestBasicArrayRemove(t *testing.T) {
t.Run("remove-first", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
require.Equal(t, uint64(arraySize), array.Count())
for i := uint64(0); i < arraySize; i {
v, err := array.Remove(0)
require.NoError(t, err)
e, ok := v.(Uint64Value)
require.True(t, ok)
require.Equal(t, i, uint64(e))
require.Equal(t, arraySize-i-1, array.Count())
}
require.Equal(t, uint64(0), array.Count())
})
t.Run("remove-last", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
require.Equal(t, uint64(arraySize), array.Count())
for i := arraySize - 1; i >= 0; i-- {
v, err := array.Remove(uint64(i))
require.NoError(t, err)
e, ok := v.(Uint64Value)
require.True(t, ok)
require.Equal(t, uint64(i), uint64(e))
require.Equal(t, uint64(i), array.Count())
}
require.Equal(t, uint64(0), array.Count())
})
t.Run("remove", func(t *testing.T) {
const arraySize = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
for i := uint64(0); i < arraySize; i {
err := array.Append(Uint64Value(i))
require.NoError(t, err)
}
require.Equal(t, uint64(arraySize), array.Count())
// Remove every other elements
for i := uint64(0); i < array.Count(); i {
e, err := array.Get(i)
require.NoError(t, err)
v, err := array.Remove(i)
require.NoError(t, err)
require.Equal(t, e, v)
}
for i, j := uint64(0), uint64(1); i < array.Count(); i, j = i 1, j 2 {
v, err := array.Get(i)
require.NoError(t, err)
e, ok := v.(Uint64Value)
require.True(t, ok)
require.Equal(t, j, uint64(e))
}
})
}
func TestBasicArrayRandomAppendSetInsertRemoveMixedTypes(t *testing.T) {
const (
AppendAction = iota
SetAction
InsertAction
RemoveAction
MaxAction
)
const (
Uint8Type = iota
Uint16Type
Uint32Type
Uint64Type
MaxType
)
const actionCount = 1024 * 16
storage := newTestBasicStorage(t)
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
values := make([]Value, 0, actionCount)
for i := uint64(0); i < actionCount; i {
var v Value
switch rand.Intn(MaxType) {
case Uint8Type:
n := rand.Intn(math.MaxUint8 1)
v = Uint8Value(n)
case Uint16Type:
n := rand.Intn(math.MaxUint16 1)
v = Uint16Value(n)
case Uint32Type:
v = Uint32Value(rand.Uint32())
case Uint64Type:
v = Uint64Value(rand.Uint64())
}
switch rand.Intn(MaxAction) {
case AppendAction:
values = append(values, v)
err := array.Append(v)
require.NoError(t, err)
case SetAction:
if array.Count() == 0 {
continue
}
k := rand.Intn(int(array.Count()))
values[k] = v
err := array.Set(uint64(k), v)
require.NoError(t, err)
case InsertAction:
k := rand.Intn(int(array.Count() 1))
if k == int(array.Count()) {
values = append(values, v)
} else {
values = append(values, nil)
copy(values[k 1:], values[k:])
values[k] = v
}
err := array.Insert(uint64(k), v)
require.NoError(t, err)
case RemoveAction:
if array.Count() > 0 {
k := rand.Intn(int(array.Count()))
v, err := array.Remove(uint64(k))
require.NoError(t, err)
require.Equal(t, values[k], v)
copy(values[k:], values[k 1:])
values = values[:len(values)-1]
}
}
require.Equal(t, array.Count(), uint64(len(values)))
}
for k, v := range values {
e, err := array.Get(uint64(k))
require.NoError(t, err)
require.Equal(t, v, e)
}
}
func TestBasicArrayDecodeEncodeRandomData(t *testing.T) {
const (
Uint8Type = iota
Uint16Type
Uint32Type
Uint64Type
MaxType
)
encMode, err := cbor.EncOptions{}.EncMode()
require.NoError(t, err)
decMode, err := cbor.DecOptions{}.DecMode()
require.NoError(t, err)
storage := NewBasicSlabStorage(encMode, decMode)
storage.DecodeStorable = decodeStorable
address := Address{1, 2, 3, 4, 5, 6, 7, 8}
array := NewBasicArray(storage, address)
const arraySize = 256 * 256
values := make([]Value, arraySize)
for i := uint64(0); i < arraySize; i {
var v Value
switch rand.Intn(MaxType) {
case Uint8Type:
n := rand.Intn(math.MaxUint8 1)
v = Uint8Value(n)
case Uint16Type:
n := rand.Intn(math.MaxUint16 1)
v = Uint16Value(n)
case Uint32Type:
v = Uint32Value(rand.Uint32())
case Uint64Type:
v = Uint64Value(rand.Uint64())
}
values[i] = v
err := array.Append(v)
require.NoError(t, err)
}
rootID := array.root.Header().id
// Encode slabs with random data of mixed types
m1, err := storage.Encode()
require.NoError(t, err)
// Decode data to new storage
storage2 := NewBasicSlabStorage(encMode, decMode)
storage2.DecodeStorable = decodeStorable
err = storage2.Load(m1)
require.NoError(t, err)
// Create new array from new storage
array2, err := NewBasicArrayWithRootID(storage2, rootID)
require.NoError(t, err)
// Get and check every element from new array.
for i := uint64(0); i < arraySize; i {
e, err := array2.Get(i)
require.NoError(t, err)
require.Equal(t, values[i], e)
}
}