--- /dev/null
+// Copyright 2017 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// An integration test service that covers all the method signature permutations
+// of unary/streaming requests/responses.
+syntax = "proto3";
+
+package grpc.testing;
+
+message Empty {}
+
+// The type of payload that should be returned.
+enum PayloadType {
+ // Compressable text format.
+ COMPRESSABLE = 0;
+
+ // Uncompressable binary format.
+ UNCOMPRESSABLE = 1;
+
+ // Randomly chosen from all other formats defined in this enum.
+ RANDOM = 2;
+}
+
+// A block of data, to simply increase gRPC message size.
+message Payload {
+ // The type of data in body.
+ PayloadType type = 1;
+ // Primary contents of payload.
+ bytes body = 2;
+}
+
+// A protobuf representation for grpc status. This is used by test
+// clients to specify a status that the server should attempt to return.
+message EchoStatus {
+ int32 code = 1;
+ string message = 2;
+}
+
+// Unary request.
+message SimpleRequest {
+ // Desired payload type in the response from the server.
+ // If response_type is RANDOM, server randomly chooses one from other formats.
+ PayloadType response_type = 1;
+
+ // Desired payload size in the response from the server.
+ // If response_type is COMPRESSABLE, this denotes the size before compression.
+ int32 response_size = 2;
+
+ // Optional input payload sent along with the request.
+ Payload payload = 3;
+
+ // Whether SimpleResponse should include username.
+ bool fill_username = 4;
+
+ // Whether SimpleResponse should include OAuth scope.
+ bool fill_oauth_scope = 5;
+
+ // Whether server should return a given status
+ EchoStatus response_status = 7;
+}
+
+// Unary response, as configured by the request.
+message SimpleResponse {
+ // Payload to increase message size.
+ Payload payload = 1;
+
+ // The user the request came from, for verifying authentication was
+ // successful when the client expected it.
+ string username = 2;
+
+ // OAuth scope.
+ string oauth_scope = 3;
+}
+
+// Client-streaming request.
+message StreamingInputCallRequest {
+ // Optional input payload sent along with the request.
+ Payload payload = 1;
+
+ // Not expecting any payload from the response.
+}
+
+// Client-streaming response.
+message StreamingInputCallResponse {
+ // Aggregated size of payloads received from the client.
+ int32 aggregated_payload_size = 1;
+}
+
+// Configuration for a particular response.
+message ResponseParameters {
+ // Desired payload sizes in responses from the server.
+ // If response_type is COMPRESSABLE, this denotes the size before compression.
+ int32 size = 1;
+
+ // Desired interval between consecutive responses in the response stream in
+ // microseconds.
+ int32 interval_us = 2;
+}
+
+// Server-streaming request.
+message StreamingOutputCallRequest {
+ // Desired payload type in the response from the server.
+ // If response_type is RANDOM, the payload from each response in the stream
+ // might be of different types. This is to simulate a mixed type of payload
+ // stream.
+ PayloadType response_type = 1;
+
+ // Configuration for each expected response message.
+ repeated ResponseParameters response_parameters = 2;
+
+ // Optional input payload sent along with the request.
+ Payload payload = 3;
+
+ // Whether server should return a given status
+ EchoStatus response_status = 7;
+}
+
+// Server-streaming response, as configured by the request and parameters.
+message StreamingOutputCallResponse {
+ // Payload to increase response size.
+ Payload payload = 1;
+}
+
+// A simple service to test the various types of RPCs and experiment with
+// performance with various types of payload.
+service TestService {
+ // One empty request followed by one empty response.
+ rpc EmptyCall(Empty) returns (Empty);
+
+ // One request followed by one response.
+ // The server returns the client payload as-is.
+ rpc UnaryCall(SimpleRequest) returns (SimpleResponse);
+
+ // One request followed by a sequence of responses (streamed download).
+ // The server returns the payload with client desired type and sizes.
+ rpc StreamingOutputCall(StreamingOutputCallRequest)
+ returns (stream StreamingOutputCallResponse);
+
+ // A sequence of requests followed by one response (streamed upload).
+ // The server returns the aggregated size of client payload as the result.
+ rpc StreamingInputCall(stream StreamingInputCallRequest)
+ returns (StreamingInputCallResponse);
+
+ // A sequence of requests with each request served by the server immediately.
+ // As one request could lead to multiple responses, this interface
+ // demonstrates the idea of full duplexing.
+ rpc FullDuplexCall(stream StreamingOutputCallRequest)
+ returns (stream StreamingOutputCallResponse);
+
+ // A sequence of requests followed by a sequence of responses.
+ // The server buffers all the client requests and then serves them in order. A
+ // stream of responses are returned to the client when the server starts with
+ // first request.
+ rpc HalfDuplexCall(stream StreamingOutputCallRequest)
+ returns (stream StreamingOutputCallResponse);
+}
+
+// A simple service NOT implemented at servers so clients can test for
+// that case.
+service UnimplementedService {
+ // A call that no server should implement
+ rpc UnimplementedCall(grpc.testing.Empty) returns (grpc.testing.Empty);
+}