frostfs-node/pkg/network/transport/object/grpc/get_test.go

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package object
import (
"context"
"testing"
"github.com/nspcc-dev/neofs-api-go/object"
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"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/localstore"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
)
type (
// Entity for mocking interfaces.
// Implementation of any interface intercepts arguments via f (if not nil).
// If err is not nil, it returns as it is. Otherwise, casted to needed type res returns w/o error.
testGetEntity struct {
// Set of interfaces which entity must implement, but some methods from those does not call.
localstore.Localstore
object.Service_GetServer
// Argument interceptor. Used for ascertain of correct parameter passage between components.
f func(...interface{})
// Mocked result of any interface.
res interface{}
// Mocked error of any interface.
err error
}
)
var (
_ object.Service_GetServer = (*testGetEntity)(nil)
_ requestHandler = (*testGetEntity)(nil)
_ responsePreparer = (*testGetEntity)(nil)
)
func (s *testGetEntity) prepareResponse(_ context.Context, req serviceRequest, resp serviceResponse) error {
if s.f != nil {
s.f(req, resp)
}
return s.err
}
func (s *testGetEntity) Context() context.Context { return context.TODO() }
func (s *testGetEntity) Send(r *object.GetResponse) error {
if s.f != nil {
s.f(r)
}
return s.err
}
func (s *testGetEntity) handleRequest(_ context.Context, p handleRequestParams) (interface{}, error) {
if s.f != nil {
s.f(p)
}
return s.res, s.err
}
func Test_makeGetHeaderResponse(t *testing.T) {
obj := &Object{Payload: testData(t, 10)}
require.Equal(t, &object.GetResponse{R: &object.GetResponse_Object{Object: obj}}, makeGetHeaderResponse(obj))
}
func Test_makeGetChunkResponse(t *testing.T) {
chunk := testData(t, 10)
require.Equal(t, &object.GetResponse{R: &object.GetResponse_Chunk{Chunk: chunk}}, makeGetChunkResponse(chunk))
}
func Test_splitBytes(t *testing.T) {
t.Run("empty data", func(t *testing.T) {
testSplit(t, make([]byte, 0), 0)
testSplit(t, nil, 0)
})
t.Run("less size", func(t *testing.T) {
testSplit(t, make([]byte, 10), 20)
})
t.Run("equal size", func(t *testing.T) {
testSplit(t, make([]byte, 20), 20)
})
t.Run("oversize", func(t *testing.T) {
testSplit(t, make([]byte, 3), 17)
})
}
func testSplit(t *testing.T, initData []byte, maxSize int) {
res := splitBytes(initData, maxSize)
restored := make([]byte, 0, len(initData))
for i := range res {
require.LessOrEqual(t, len(res[i]), maxSize)
restored = append(restored, res[i]...)
}
require.Len(t, restored, len(initData))
if len(initData) > 0 {
require.Equal(t, initData, restored)
}
}
func TestObjectService_Get(t *testing.T) {
req := &object.GetRequest{Address: testObjectAddress(t)}
t.Run("request handler failure", func(t *testing.T) {
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hErr := errors.New("test error for request handler")
s := &objectService{
statusCalculator: newStatusCalculator(),
}
s.requestHandler = &testGetEntity{
f: func(items ...interface{}) {
t.Run("correct request handler params", func(t *testing.T) {
p := items[0].(handleRequestParams)
require.Equal(t, req, p.request)
require.Equal(t, s, p.executor)
})
},
err: hErr,
}
require.EqualError(t, s.Get(req, new(testGetEntity)), hErr.Error())
})
t.Run("send object head failure", func(t *testing.T) {
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srvErr := errors.New("test error for get server")
obj := &Object{
SystemHeader: SystemHeader{
ID: testObjectAddress(t).ObjectID,
CID: testObjectAddress(t).CID,
},
}
s := objectService{
requestHandler: &testGetEntity{res: &objectData{Object: obj}},
respPreparer: &testGetEntity{
f: func(items ...interface{}) {
require.Equal(t, req, items[0])
require.Equal(t, makeGetHeaderResponse(obj), items[1])
},
res: new(object.GetResponse),
},
statusCalculator: newStatusCalculator(),
}
require.EqualError(t, s.Get(req, &testGetEntity{err: srvErr}), errors.Wrap(srvErr, emSendObjectHead).Error())
})
t.Run("send chunk failure", func(t *testing.T) {
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srvErr := errors.New("test error for get server")
payload := testData(t, 10)
obj := &Object{
SystemHeader: SystemHeader{ID: testObjectAddress(t).ObjectID},
Headers: []Header{{
Value: &object.Header_UserHeader{UserHeader: &UserHeader{Key: "key", Value: "value"}},
}},
Payload: payload,
}
headResp := makeGetHeaderResponse(&Object{
SystemHeader: obj.SystemHeader,
Headers: obj.Headers,
})
chunkResp := makeGetChunkResponse(payload)
callNum := 0
respPrep := new(testGetEntity)
respPrep.f = func(items ...interface{}) {
if callNum == 0 {
respPrep.res = headResp
} else {
respPrep.res = chunkResp
}
}
s := objectService{
requestHandler: &testGetEntity{res: &objectData{Object: obj}},
respPreparer: respPrep,
getChunkPreparer: respPrep,
statusCalculator: newStatusCalculator(),
}
srv := new(testGetEntity)
srv.f = func(items ...interface{}) {
t.Run("correct get server params", func(t *testing.T) {
if callNum == 0 {
require.Equal(t, headResp, items[0])
} else {
require.Equal(t, chunkResp, items[0])
srv.err = srvErr
}
callNum++
})
}
require.EqualError(t, s.Get(req, srv), srvErr.Error())
})
t.Run("send success", func(t *testing.T) {
s := objectService{
requestHandler: &testGetEntity{res: &objectData{
Object: new(Object),
payload: new(emptyReader),
}},
respPreparer: &testGetEntity{
res: new(object.GetResponse),
},
statusCalculator: newStatusCalculator(),
}
require.NoError(t, s.Get(req, new(testGetEntity)))
})
}