lotus/storage/sectorstorage/zerocomm/zerocomm_test.go

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2020-03-26 02:50:56 +00:00
package zerocomm_test
import (
"bytes"
"fmt"
"github.com/filecoin-project/lotus/storage/sectorstorage/zerocomm"
"io"
"testing"
commcid "github.com/filecoin-project/go-fil-commcid"
abi "github.com/filecoin-project/specs-actors/actors/abi"
"github.com/ipfs/go-cid"
"github.com/filecoin-project/lotus/storage/sectorstorage/ffiwrapper"
)
func TestComms(t *testing.T) {
t.Skip("don't have enough ram") // no, but seriously, currently this needs like 3tb of /tmp
var expPieceComms [zerocomm.Levels - zerocomm.Skip]cid.Cid
{
l2, err := ffiwrapper.GeneratePieceCIDFromFile(abi.RegisteredProof_StackedDRG2KiBPoSt, bytes.NewReader(make([]byte, 127)), 127)
if err != nil {
t.Fatal(err)
}
expPieceComms[0] = l2
}
for i := 1; i < zerocomm.Levels-2; i++ {
var err error
sz := abi.UnpaddedPieceSize(127 << uint(i))
fmt.Println(i, sz)
r := io.LimitReader(&NullReader{}, int64(sz))
expPieceComms[i], err = ffiwrapper.GeneratePieceCIDFromFile(abi.RegisteredProof_StackedDRG2KiBPoSt, r, sz)
if err != nil {
t.Fatal(err)
}
}
for i, comm := range expPieceComms {
c, err := commcid.CIDToPieceCommitmentV1(comm)
if err != nil {
t.Fatal(err)
}
if string(c) != string(zerocomm.PieceComms[i][:]) {
t.Errorf("zero commitment %d didn't match", i)
}
}
for _, comm := range expPieceComms { // Could do codegen, but this is good enough
fmt.Printf("%#v,\n", comm)
}
}
func TestCommsSmall(t *testing.T) {
var expPieceComms [8]cid.Cid
lvls := len(expPieceComms) + zerocomm.Skip
{
l2, err := ffiwrapper.GeneratePieceCIDFromFile(abi.RegisteredProof_StackedDRG2KiBPoSt, bytes.NewReader(make([]byte, 127)), 127)
if err != nil {
t.Fatal(err)
}
expPieceComms[0] = l2
}
for i := 1; i < lvls-2; i++ {
var err error
sz := abi.UnpaddedPieceSize(127 << uint(i))
fmt.Println(i, sz)
r := io.LimitReader(&NullReader{}, int64(sz))
expPieceComms[i], err = ffiwrapper.GeneratePieceCIDFromFile(abi.RegisteredProof_StackedDRG2KiBPoSt, r, sz)
if err != nil {
t.Fatal(err)
}
}
for i, comm := range expPieceComms {
c, err := commcid.CIDToPieceCommitmentV1(comm)
if err != nil {
t.Fatal(err)
}
if string(c) != string(zerocomm.PieceComms[i][:]) {
t.Errorf("zero commitment %d didn't match", i)
}
}
for _, comm := range expPieceComms { // Could do codegen, but this is good enough
fmt.Printf("%#v,\n", comm)
}
}
func TestForSise(t *testing.T) {
exp, err := ffiwrapper.GeneratePieceCIDFromFile(abi.RegisteredProof_StackedDRG2KiBPoSt, bytes.NewReader(make([]byte, 1016)), 1016)
if err != nil {
return
}
actual := zerocomm.ZeroPieceCommitment(1016)
if !exp.Equals(actual) {
t.Errorf("zero commitment didn't match")
}
}
type NullReader struct{}
func (NullReader) Read(out []byte) (int, error) {
for i := range out {
out[i] = 0
}
return len(out), nil
}