frostfs-sdk-go/client/object_patch_test.go

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package client
import (
"bytes"
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"testing"
v2object "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
"github.com/stretchr/testify/require"
)
type mockPatchStream struct {
streamedPayloadPatches []*object.PayloadPatch
}
func (m *mockPatchStream) Write(r *v2object.PatchRequest) error {
pp := new(object.PayloadPatch)
pp.FromV2(r.GetBody().GetPatch())
if r.GetBody().GetPatch() != nil {
bodyChunk := r.GetBody().GetPatch().Chunk
pp.Chunk = make([]byte, len(bodyChunk))
copy(pp.Chunk, bodyChunk)
}
m.streamedPayloadPatches = append(m.streamedPayloadPatches, pp)
return nil
}
func (m *mockPatchStream) Close() error {
return nil
}
func TestObjectPatcher(t *testing.T) {
type part struct {
offset int
length int
chunk string
}
for _, test := range []struct {
name string
patchPayload string
rng *object.Range
maxChunkLen int
expectParts []part
}{
{
name: "no split payload patch",
patchPayload: "011111",
rng: newRange(0, 6),
maxChunkLen: defaultGRPCPayloadChunkLen,
expectParts: []part{
{
offset: 0,
length: 6,
chunk: "011111",
},
},
},
{
name: "splitted payload patch",
patchPayload: "012345",
rng: newRange(0, 6),
maxChunkLen: 2,
expectParts: []part{
{
offset: 0,
length: 6,
chunk: "01",
},
{
offset: 6,
length: 0,
chunk: "23",
},
{
offset: 6,
length: 0,
chunk: "45",
},
},
},
{
name: "splitted payload patch with zero-length subpatches",
patchPayload: "0123456789!@",
rng: newRange(0, 4),
maxChunkLen: 2,
expectParts: []part{
{
offset: 0,
length: 4,
chunk: "01",
},
{
offset: 4,
length: 0,
chunk: "23",
},
{
offset: 4,
length: 0,
chunk: "45",
},
{
offset: 4,
length: 0,
chunk: "67",
},
{
offset: 4,
length: 0,
chunk: "89",
},
{
offset: 4,
length: 0,
chunk: "!@",
},
},
},
{
name: "splitted payload patch with zero-length subpatches only",
patchPayload: "0123456789!@",
rng: newRange(0, 0),
maxChunkLen: 2,
expectParts: []part{
{
offset: 0,
length: 0,
chunk: "01",
},
{
offset: 0,
length: 0,
chunk: "23",
},
{
offset: 0,
length: 0,
chunk: "45",
},
{
offset: 0,
length: 0,
chunk: "67",
},
{
offset: 0,
length: 0,
chunk: "89",
},
{
offset: 0,
length: 0,
chunk: "!@",
},
},
},
} {
t.Run(test.name, func(t *testing.T) {
m := &mockPatchStream{}
pk, _ := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
patcher := objectPatcher{
client: &Client{},
stream: m,
addr: oidtest.Address(),
key: pk,
maxChunkLen: test.maxChunkLen,
firstPatchPayload: true,
}
success := patcher.PatchAttributes(context.Background(), nil, false)
require.True(t, success)
success = patcher.PatchPayload(context.Background(), test.rng, bytes.NewReader([]byte(test.patchPayload)))
require.True(t, success)
require.Len(t, m.streamedPayloadPatches, len(test.expectParts)+1)
// m.streamedPayloadPatches[0] is attribute patch, so skip it
for i, part := range test.expectParts {
requireRangeChunk(t, m.streamedPayloadPatches[i+1], part.offset, part.length, part.chunk)
}
})
}
}
func requireRangeChunk(t *testing.T, pp *object.PayloadPatch, offset, length int, chunk string) {
require.NotNil(t, pp)
require.Equal(t, uint64(offset), pp.Range.GetOffset())
require.Equal(t, uint64(length), pp.Range.GetLength())
require.Equal(t, []byte(chunk), pp.Chunk)
}
func newRange(offest, length uint64) *object.Range {
rng := &object.Range{}
rng.SetOffset(offest)
rng.SetLength(length)
return rng
}