3 files changed, 64 insertions, 57 deletions

diff --git a/test/cpp/qps/qps_driver.cc b/test/cpp/qps/qps_driver.cc
index eceb5103f6..d534846365 100644
--- a/test/cpp/qps/qps_driver.cc
+++ b/test/cpp/qps/qps_driver.cc
@@ -132,6 +132,9 @@ static void QpsDriver() {
       pareto->set_alpha(FLAGS_load_param_2);
       break;
     }
+    default:
+      GPR_ASSERT(false);
+      break;
   }
 
   ServerConfig server_config;
diff --git a/test/cpp/qps/qps_worker.cc b/test/cpp/qps/qps_worker.cc
index fb49271991..40cc4cb89b 100644
--- a/test/cpp/qps/qps_worker.cc
+++ b/test/cpp/qps/qps_worker.cc
@@ -71,6 +71,8 @@ std::unique_ptr<Client> CreateClient(const ClientConfig& config) {
       return (config.rpc_type() == RpcType::UNARY)
                  ? CreateAsyncUnaryClient(config)
                  : CreateAsyncStreamingClient(config);
+    default:
+      abort();
   }
   abort();
 }
@@ -82,6 +84,8 @@ std::unique_ptr<Server> CreateServer(const ServerConfig& config,
       return CreateSynchronousServer(config, server_port);
     case ServerType::ASYNC_SERVER:
       return CreateAsyncServer(config, server_port);
+    default:
+      abort();
   }
   abort();
 }
diff --git a/test/cpp/qps/qpstest.proto b/test/cpp/qps/qpstest.proto
index d977c9b48b..ef1f9451e9 100644
--- a/test/cpp/qps/qpstest.proto
+++ b/test/cpp/qps/qpstest.proto
@@ -30,92 +30,92 @@
 
 // An integration test service that covers all the method signature permutations
 // of unary/streaming requests/responses.
-syntax = "proto2";
+syntax = "proto3";
 
 package grpc.testing;
 
 enum PayloadType {
   // Compressable text format.
-  COMPRESSABLE = 1;
+  COMPRESSABLE = 0;
 
   // Uncompressable binary format.
-  UNCOMPRESSABLE = 2;
+  UNCOMPRESSABLE = 1;
 
   // Randomly chosen from all other formats defined in this enum.
-  RANDOM = 3;
+  RANDOM = 2;
 }
 
 message StatsRequest {
   // run number
-  optional int32 test_num = 1;
+  int32 test_num = 1;
 }
 
 message ServerStats {
   // wall clock time
-  required double time_elapsed = 1;
+  double time_elapsed = 1;
 
   // user time used by the server process and threads
-  required double time_user = 2;
+  double time_user = 2;
 
   // server time used by the server process and all threads
-  required double time_system = 3;
+  double time_system = 3;
 }
 
 message Payload {
   // The type of data in body.
-  optional PayloadType type = 1;
+  PayloadType type = 1;
   // Primary contents of payload.
-  optional bytes body = 2;
+  bytes body = 2;
 }
 
 message HistogramData {
   repeated uint32 bucket = 1;
-  required double min_seen = 2;
-  required double max_seen = 3;
-  required double sum = 4;
-  required double sum_of_squares = 5;
-  required double count = 6;
+  double min_seen = 2;
+  double max_seen = 3;
+  double sum = 4;
+  double sum_of_squares = 5;
+  double count = 6;
 }
 
 enum ClientType {
-  SYNCHRONOUS_CLIENT = 1;
-  ASYNC_CLIENT = 2;
+  SYNCHRONOUS_CLIENT = 0;
+  ASYNC_CLIENT = 1;
 }
 
 enum ServerType {
-  SYNCHRONOUS_SERVER = 1;
-  ASYNC_SERVER = 2;
+  SYNCHRONOUS_SERVER = 0;
+  ASYNC_SERVER = 1;
 }
 
 enum RpcType {
-  UNARY = 1;
-  STREAMING = 2;
+  UNARY = 0;
+  STREAMING = 1;
 }
 
 enum LoadType {
-  CLOSED_LOOP = 1;
-  POISSON = 2;
-  UNIFORM = 3;
-  DETERMINISTIC = 4;
-  PARETO = 5;
+  CLOSED_LOOP = 0;
+  POISSON = 1;
+  UNIFORM = 2;
+  DETERMINISTIC = 3;
+  PARETO = 4;
 }
 
 message PoissonParams {
-  optional double offered_load = 1;
+  double offered_load = 1;
 }
 
 message UniformParams {
-  optional double interarrival_lo = 1;
-  optional double interarrival_hi = 2;
+  double interarrival_lo = 1;
+  double interarrival_hi = 2;
 }
 
 message DeterministicParams {
-  optional double offered_load = 1;
+  double offered_load = 1;
 }
 
 message ParetoParams {
-  optional double interarrival_base = 1;
-  optional double alpha = 2;
+  double interarrival_base = 1;
+  double alpha = 2;
 }
 
 message LoadParams {
@@ -129,17 +129,17 @@ message LoadParams {
 
 message ClientConfig {
   repeated string server_targets = 1;
-  required ClientType client_type = 2;
-  optional bool enable_ssl = 3 [default = false];
-  required int32 outstanding_rpcs_per_channel = 4;
-  required int32 client_channels = 5;
-  required int32 payload_size = 6;
+  ClientType client_type = 2;
+  bool enable_ssl = 3;
+  int32 outstanding_rpcs_per_channel = 4;
+  int32 client_channels = 5;
+  int32 payload_size = 6;
   // only for async client:
-  optional int32 async_client_threads = 7;
-  optional RpcType rpc_type = 8 [default = UNARY];
-  optional string host = 9;
-  optional LoadType load_type = 10 [default = CLOSED_LOOP];
-  optional LoadParams load_params = 11;
+  int32 async_client_threads = 7;
+  RpcType rpc_type = 8;
+  string host = 9;
+  LoadType load_type = 10;
+  LoadParams load_params = 11;
 }
 
 // Request current stats
@@ -154,21 +154,21 @@ message ClientArgs {
 }
 
 message ClientStats {
-  required HistogramData latencies = 1;
-  required double time_elapsed = 3;
-  required double time_user = 4;
-  required double time_system = 5;
+  HistogramData latencies = 1;
+  double time_elapsed = 2;
+  double time_user = 3;
+  double time_system = 4;
 }
 
 message ClientStatus {
-  optional ClientStats stats = 1;
+  ClientStats stats = 1;
 }
 
 message ServerConfig {
-  required ServerType server_type = 1;
-  optional int32 threads = 2 [default = 1];
-  optional bool enable_ssl = 3 [default = false];
-  optional string host = 4;
+  ServerType server_type = 1;
+  int32 threads = 2;
+  bool enable_ssl = 3;
+  string host = 4;
 }
 
 message ServerArgs {
@@ -179,25 +179,25 @@ message ServerArgs {
 }
 
 message ServerStatus {
-  optional ServerStats stats = 1;
-  required int32 port = 2;
+  ServerStats stats = 1;
+  int32 port = 2;
 }
 
 message SimpleRequest {
   // Desired payload type in the response from the server.
   // If response_type is RANDOM, server randomly chooses one from other formats.
-  optional PayloadType response_type = 1 [default = COMPRESSABLE];
+  PayloadType response_type = 1;
 
   // Desired payload size in the response from the server.
   // If response_type is COMPRESSABLE, this denotes the size before compression.
-  optional int32 response_size = 2 [default = 0];
+  int32 response_size = 2;
 
   // Optional input payload sent along with the request.
-  optional Payload payload = 3;
+  Payload payload = 3;
 }
 
 message SimpleResponse {
-  optional Payload payload = 1;
+  Payload payload = 1;
 }
 
 service TestService {