func doClientStreaming(tc testpb.TestServiceClient) { stream, err := tc.StreamingInputCall(context.Background()) if err != nil { grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err) } var sum int for _, s := range reqSizes { pl := newPayload(testpb.PayloadType_COMPRESSABLE, s) req := &testpb.StreamingInputCallRequest{ Payload: pl, } if err := stream.Send(req); err != nil { grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err) } sum += s grpclog.Printf("Sent a request of size %d, aggregated size %d", s, sum) } reply, err := stream.CloseAndRecv() if err != nil { grpclog.Fatalf("%v.CloseAndRecv() got error %v, want %v", stream, err, nil) } if reply.GetAggregatedPayloadSize() != int32(sum) { grpclog.Fatalf("%v.CloseAndRecv().GetAggregatePayloadSize() = %v; want %v", stream, reply.GetAggregatedPayloadSize(), sum) } grpclog.Println("ClientStreaming done") }
func doCancelAfterBegin(tc testpb.TestServiceClient) { ctx, cancel := context.WithCancel(metadata.NewContext(context.Background(), testMetadata)) stream, err := tc.StreamingInputCall(ctx) if err != nil { grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err) } cancel() _, err = stream.CloseAndRecv() if grpc.Code(err) != codes.Canceled { grpclog.Fatalf("%v.CloseAndRecv() got error code %d, want %d", stream, grpc.Code(err), codes.Canceled) } grpclog.Println("CancelAfterBegin done") }