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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package test | ||
|
|
||
| import ( | ||
| crand "crypto/rand" | ||
| "encoding/binary" | ||
| "fmt" | ||
| "math/rand" | ||
|
|
||
| "github.com/celestiaorg/go-square/pkg/blob" | ||
| "github.com/celestiaorg/go-square/pkg/namespace" | ||
| "github.com/celestiaorg/go-square/pkg/shares" | ||
| ) | ||
|
|
||
| var DefaultTestNamespace = namespace.MustNewV0([]byte("test")) | ||
|
|
||
| func GenerateTxs(minSize, maxSize, numTxs int) [][]byte { | ||
| txs := make([][]byte, numTxs) | ||
| for i := 0; i < numTxs; i++ { | ||
| txs[i] = GenerateRandomTx(minSize, maxSize) | ||
| } | ||
| return txs | ||
| } | ||
|
|
||
| func GenerateRandomTx(minSize, maxSize int) []byte { | ||
| size := minSize | ||
| if maxSize > minSize { | ||
| size = rand.Intn(maxSize-minSize) + minSize | ||
| } | ||
| return RandomBytes(size) | ||
| } | ||
|
|
||
| func RandomBytes(size int) []byte { | ||
| b := make([]byte, size) | ||
| _, err := crand.Read(b) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return b | ||
| } | ||
|
|
||
| func GenerateBlobTxWithNamespace(namespaces []namespace.Namespace, blobSizes []int) []byte { | ||
| blobs := make([]*blob.Blob, len(blobSizes)) | ||
| if len(namespaces) != len(blobSizes) { | ||
| panic("number of namespaces should match number of blob sizes") | ||
| } | ||
| for i, size := range blobSizes { | ||
| blobs[i] = blob.New(namespaces[i], RandomBytes(size), shares.DefaultShareVersion) | ||
| } | ||
| blobTx, err := blob.MarshalBlobTx(MockPFB(toUint32(blobSizes)), blobs...) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return blobTx | ||
| } | ||
|
|
||
| func GenerateBlobTx(blobSizes []int) []byte { | ||
| return GenerateBlobTxWithNamespace(Repeat(DefaultTestNamespace, len(blobSizes)), blobSizes) | ||
| } | ||
|
|
||
| func GenerateBlobTxs(numTxs, blobsPerPfb, blobSize int) [][]byte { | ||
| blobSizes := make([]int, blobsPerPfb) | ||
| for i := range blobSizes { | ||
| blobSizes[i] = blobSize | ||
| } | ||
| txs := make([][]byte, numTxs) | ||
| for i := 0; i < numTxs; i++ { | ||
| txs[i] = GenerateBlobTx(blobSizes) | ||
| } | ||
| return txs | ||
| } | ||
|
|
||
| const mockPFBExtraBytes = 329 | ||
|
|
||
| func MockPFB(blobSizes []uint32) []byte { | ||
| if len(blobSizes) == 0 { | ||
| panic("must have at least one blob") | ||
| } | ||
| tx := make([]byte, len(blobSizes)*4) | ||
| for i, size := range blobSizes { | ||
| binary.BigEndian.PutUint32(tx[i*4:], uint32(size)) | ||
| } | ||
|
|
||
| return append(RandomBytes(mockPFBExtraBytes), tx...) | ||
| } | ||
|
|
||
| func DecodeMockPFB(pfb []byte) ([]uint32, error) { | ||
| if len(pfb) < mockPFBExtraBytes+4 { | ||
| return nil, fmt.Errorf("must have a length of at least %d bytes, got %d", mockPFBExtraBytes+4, len(pfb)) | ||
| } | ||
| pfb = pfb[mockPFBExtraBytes:] | ||
| blobSizes := make([]uint32, len(pfb)/4) | ||
| for i := 0; i < len(blobSizes); i++ { | ||
| blobSizes[i] = binary.BigEndian.Uint32(pfb[i*4 : (i+1)*4]) | ||
| } | ||
| return blobSizes, nil | ||
| } | ||
|
|
||
| func toUint32(arr []int) []uint32 { | ||
| output := make([]uint32, len(arr)) | ||
| for i, value := range arr { | ||
| output[i] = uint32(value) | ||
| } | ||
| return output | ||
| } | ||
|
|
||
| func Repeat[T any](s T, count int) []T { | ||
| ss := make([]T, count) | ||
| for i := 0; i < count; i++ { | ||
| ss[i] = s | ||
| } | ||
| return ss | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| package test_test | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/celestiaorg/go-square/internal/test" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| func TestPFBParity(t *testing.T) { | ||
| blobSizes := []uint32{20, 30, 10} | ||
| pfb := test.MockPFB(blobSizes) | ||
| output, err := test.DecodeMockPFB(pfb) | ||
| require.NoError(t, err) | ||
| require.Equal(t, blobSizes, output) | ||
|
|
||
| require.Panics(t, func() { test.MockPFB(nil) }) | ||
|
|
||
| _, err = test.DecodeMockPFB(test.RandomBytes(20)) | ||
| require.Error(t, err) | ||
| } |
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