lotus/chain/events/state/diff_adt_test.go

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package state
import (
"bytes"
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
cbornode "github.com/ipfs/go-ipld-cbor"
typegen "github.com/whyrusleeping/cbor-gen"
"github.com/filecoin-project/specs-actors/actors/runtime"
"github.com/filecoin-project/specs-actors/actors/util/adt"
bstore "github.com/filecoin-project/lotus/lib/blockstore"
)
func TestDiffAdtArray(t *testing.T) {
ctxstoreA := newContextStore()
ctxstoreB := newContextStore()
arrA := adt.MakeEmptyArray(ctxstoreA)
arrB := adt.MakeEmptyArray(ctxstoreB)
require.NoError(t, arrA.Set(0, runtime.CBORBytes([]byte{0}))) // delete
require.NoError(t, arrA.Set(1, runtime.CBORBytes([]byte{0}))) // modify
require.NoError(t, arrB.Set(1, runtime.CBORBytes([]byte{1})))
require.NoError(t, arrA.Set(2, runtime.CBORBytes([]byte{1}))) // delete
require.NoError(t, arrA.Set(3, runtime.CBORBytes([]byte{0}))) // noop
require.NoError(t, arrB.Set(3, runtime.CBORBytes([]byte{0})))
require.NoError(t, arrA.Set(4, runtime.CBORBytes([]byte{0}))) // modify
require.NoError(t, arrB.Set(4, runtime.CBORBytes([]byte{6})))
require.NoError(t, arrB.Set(5, runtime.CBORBytes{8})) // add
require.NoError(t, arrB.Set(6, runtime.CBORBytes{9})) // add
changes := new(TestDiffArray)
assert.NoError(t, DiffAdtArray(arrA, arrB, changes))
assert.NotNil(t, changes)
assert.Equal(t, 2, len(changes.Added))
// keys 5 and 6 were added
assert.EqualValues(t, uint64(5), changes.Added[0].key)
assert.EqualValues(t, []byte{8}, changes.Added[0].val)
assert.EqualValues(t, uint64(6), changes.Added[1].key)
assert.EqualValues(t, []byte{9}, changes.Added[1].val)
assert.Equal(t, 2, len(changes.Modified))
// keys 1 and 4 were modified
assert.EqualValues(t, uint64(1), changes.Modified[0].From.key)
assert.EqualValues(t, []byte{0}, changes.Modified[0].From.val)
assert.EqualValues(t, uint64(1), changes.Modified[0].To.key)
assert.EqualValues(t, []byte{1}, changes.Modified[0].To.val)
assert.EqualValues(t, uint64(4), changes.Modified[1].From.key)
assert.EqualValues(t, []byte{0}, changes.Modified[1].From.val)
assert.EqualValues(t, uint64(4), changes.Modified[1].To.key)
assert.EqualValues(t, []byte{6}, changes.Modified[1].To.val)
assert.Equal(t, 2, len(changes.Removed))
// keys 0 and 2 were deleted
assert.EqualValues(t, uint64(0), changes.Removed[0].key)
assert.EqualValues(t, []byte{0}, changes.Removed[0].val)
assert.EqualValues(t, uint64(2), changes.Removed[1].key)
assert.EqualValues(t, []byte{1}, changes.Removed[1].val)
}
func TestDiffAdtMap(t *testing.T) {
ctxstoreA := newContextStore()
ctxstoreB := newContextStore()
mapA := adt.MakeEmptyMap(ctxstoreA)
mapB := adt.MakeEmptyMap(ctxstoreB)
require.NoError(t, mapA.Put(adt.UIntKey(0), runtime.CBORBytes([]byte{0}))) // delete
require.NoError(t, mapA.Put(adt.UIntKey(1), runtime.CBORBytes([]byte{0}))) // modify
require.NoError(t, mapB.Put(adt.UIntKey(1), runtime.CBORBytes([]byte{1})))
require.NoError(t, mapA.Put(adt.UIntKey(2), runtime.CBORBytes([]byte{1}))) // delete
require.NoError(t, mapA.Put(adt.UIntKey(3), runtime.CBORBytes([]byte{0}))) // noop
require.NoError(t, mapB.Put(adt.UIntKey(3), runtime.CBORBytes([]byte{0})))
require.NoError(t, mapA.Put(adt.UIntKey(4), runtime.CBORBytes([]byte{0}))) // modify
require.NoError(t, mapB.Put(adt.UIntKey(4), runtime.CBORBytes([]byte{6})))
require.NoError(t, mapB.Put(adt.UIntKey(5), runtime.CBORBytes{8})) // add
require.NoError(t, mapB.Put(adt.UIntKey(6), runtime.CBORBytes{9})) // add
changes := new(TestDiffMap)
assert.NoError(t, DiffAdtMap(mapA, mapB, changes))
assert.NotNil(t, changes)
assert.Equal(t, 2, len(changes.Added))
// keys 5 and 6 were added
assert.EqualValues(t, uint64(6), changes.Added[0].key)
assert.EqualValues(t, []byte{9}, changes.Added[0].val)
assert.EqualValues(t, uint64(5), changes.Added[1].key)
assert.EqualValues(t, []byte{8}, changes.Added[1].val)
assert.Equal(t, 2, len(changes.Modified))
// keys 1 and 4 were modified
assert.EqualValues(t, uint64(1), changes.Modified[0].From.key)
assert.EqualValues(t, []byte{0}, changes.Modified[0].From.val)
assert.EqualValues(t, uint64(1), changes.Modified[0].To.key)
assert.EqualValues(t, []byte{1}, changes.Modified[0].To.val)
assert.EqualValues(t, uint64(4), changes.Modified[1].From.key)
assert.EqualValues(t, []byte{0}, changes.Modified[1].From.val)
assert.EqualValues(t, uint64(4), changes.Modified[1].To.key)
assert.EqualValues(t, []byte{6}, changes.Modified[1].To.val)
assert.Equal(t, 2, len(changes.Removed))
// keys 0 and 2 were deleted
assert.EqualValues(t, uint64(0), changes.Removed[0].key)
assert.EqualValues(t, []byte{0}, changes.Removed[0].val)
assert.EqualValues(t, uint64(2), changes.Removed[1].key)
assert.EqualValues(t, []byte{1}, changes.Removed[1].val)
}
type TestDiffMap struct {
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Added []adtMapDiffResult
Modified []TestAdtMapDiffModified
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Removed []adtMapDiffResult
}
var _ AdtMapDiff = &TestDiffMap{}
func (t *TestDiffMap) AsKey(key string) (adt.Keyer, error) {
k, err := adt.ParseUIntKey(key)
if err != nil {
return nil, err
}
return adt.UIntKey(k), nil
}
func (t *TestDiffMap) Add(key string, val *typegen.Deferred) error {
v := new(runtime.CBORBytes)
err := v.UnmarshalCBOR(bytes.NewReader(val.Raw))
if err != nil {
return err
}
k, err := adt.ParseUIntKey(key)
if err != nil {
return err
}
t.Added = append(t.Added, adtMapDiffResult{
key: k,
val: *v,
})
return nil
}
func (t *TestDiffMap) Modify(key string, from, to *typegen.Deferred) error {
vFrom := new(runtime.CBORBytes)
err := vFrom.UnmarshalCBOR(bytes.NewReader(from.Raw))
if err != nil {
return err
}
vTo := new(runtime.CBORBytes)
err = vTo.UnmarshalCBOR(bytes.NewReader(to.Raw))
if err != nil {
return err
}
k, err := adt.ParseUIntKey(key)
if err != nil {
return err
}
if !bytes.Equal(*vFrom, *vTo) {
t.Modified = append(t.Modified, TestAdtMapDiffModified{
From: adtMapDiffResult{
key: k,
val: *vFrom,
},
To: adtMapDiffResult{
key: k,
val: *vTo,
},
})
}
return nil
}
func (t *TestDiffMap) Remove(key string, val *typegen.Deferred) error {
v := new(runtime.CBORBytes)
err := v.UnmarshalCBOR(bytes.NewReader(val.Raw))
if err != nil {
return err
}
k, err := adt.ParseUIntKey(key)
if err != nil {
return err
}
t.Removed = append(t.Removed, adtMapDiffResult{
key: k,
val: *v,
})
return nil
}
type adtMapDiffResult struct {
key uint64
val runtime.CBORBytes
}
type TestAdtMapDiffModified struct {
From adtMapDiffResult
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To adtMapDiffResult
}
type adtArrayDiffResult struct {
key uint64
val runtime.CBORBytes
}
type TestDiffArray struct {
Added []adtArrayDiffResult
Modified []TestAdtArrayDiffModified
Removed []adtArrayDiffResult
}
var _ AdtArrayDiff = &TestDiffArray{}
type TestAdtArrayDiffModified struct {
From adtArrayDiffResult
To adtArrayDiffResult
}
func (t *TestDiffArray) Add(key uint64, val *typegen.Deferred) error {
v := new(runtime.CBORBytes)
err := v.UnmarshalCBOR(bytes.NewReader(val.Raw))
if err != nil {
return err
}
t.Added = append(t.Added, adtArrayDiffResult{
key: key,
val: *v,
})
return nil
}
func (t *TestDiffArray) Modify(key uint64, from, to *typegen.Deferred) error {
vFrom := new(runtime.CBORBytes)
err := vFrom.UnmarshalCBOR(bytes.NewReader(from.Raw))
if err != nil {
return err
}
vTo := new(runtime.CBORBytes)
err = vTo.UnmarshalCBOR(bytes.NewReader(to.Raw))
if err != nil {
return err
}
if !bytes.Equal(*vFrom, *vTo) {
t.Modified = append(t.Modified, TestAdtArrayDiffModified{
From: adtArrayDiffResult{
key: key,
val: *vFrom,
},
To: adtArrayDiffResult{
key: key,
val: *vTo,
},
})
}
return nil
}
func (t *TestDiffArray) Remove(key uint64, val *typegen.Deferred) error {
v := new(runtime.CBORBytes)
err := v.UnmarshalCBOR(bytes.NewReader(val.Raw))
if err != nil {
return err
}
t.Removed = append(t.Removed, adtArrayDiffResult{
key: key,
val: *v,
})
return nil
}
func newContextStore() *contextStore {
ctx := context.Background()
bs := bstore.NewTemporarySync()
store := cbornode.NewCborStore(bs)
return &contextStore{
ctx: ctx,
cst: store,
}
}