1/* 2 * 3 * Copyright 2017 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19#import <XCTest/XCTest.h> 20 21#include <sstream> 22 23#include <grpc/grpc.h> 24#include <grpc/support/time.h> 25#include <grpcpp/channel.h> 26#include <grpcpp/client_context.h> 27#include <grpcpp/create_channel.h> 28#include <grpcpp/generic/async_generic_service.h> 29#include <grpcpp/generic/generic_stub.h> 30#include <grpcpp/server.h> 31#include <grpcpp/server_builder.h> 32#include <grpcpp/server_context.h> 33#include <grpcpp/support/slice.h> 34 35#include "src/core/util/thd.h" 36#include "test/core/test_util/port.h" 37#include "test/core/test_util/test_config.h" 38 39using std::chrono::system_clock; 40using namespace grpc; 41 42void* tag(int i) { return (void*)(intptr_t)i; } 43 44static grpc_slice merge_slices(grpc_slice* slices, size_t nslices) { 45 size_t i; 46 size_t len = 0; 47 uint8_t* cursor; 48 grpc_slice out; 49 50 for (i = 0; i < nslices; i++) { 51 len += GRPC_SLICE_LENGTH(slices[i]); 52 } 53 54 out = grpc_slice_malloc(len); 55 cursor = GRPC_SLICE_START_PTR(out); 56 57 for (i = 0; i < nslices; i++) { 58 memcpy(cursor, GRPC_SLICE_START_PTR(slices[i]), GRPC_SLICE_LENGTH(slices[i])); 59 cursor += GRPC_SLICE_LENGTH(slices[i]); 60 } 61 62 return out; 63} 64 65int byte_buffer_eq_string(ByteBuffer* bb, const char* str) { 66 int res; 67 68 std::vector<Slice> slices; 69 bb->Dump(&slices); 70 grpc_slice* c_slices = new grpc_slice[slices.size()]; 71 for (int i = 0; i < slices.size(); i++) { 72 c_slices[i] = slices[i].c_slice(); 73 } 74 grpc_slice a = merge_slices(c_slices, slices.size()); 75 grpc_slice b = grpc_slice_from_copied_string(str); 76 res = (GRPC_SLICE_LENGTH(a) == GRPC_SLICE_LENGTH(b)) && 77 (0 == memcmp(GRPC_SLICE_START_PTR(a), GRPC_SLICE_START_PTR(b), GRPC_SLICE_LENGTH(a))); 78 grpc_slice_unref(a); 79 grpc_slice_unref(b); 80 for (int i = 0; i < slices.size(); i++) { 81 grpc_slice_unref(c_slices[i]); 82 } 83 delete[] c_slices; 84 85 return res; 86} 87 88@interface GenericTest : XCTestCase 89 90@end 91 92@implementation GenericTest { 93 std::string server_host_; 94 CompletionQueue cli_cq_; 95 std::unique_ptr<ServerCompletionQueue> srv_cq_; 96 std::unique_ptr<GenericStub> generic_stub_; 97 std::unique_ptr<Server> server_; 98 AsyncGenericService generic_service_; 99 std::ostringstream server_address_; 100} 101 102- (void)verify_ok:(grpc::CompletionQueue*)cq i:(int)i expect_ok:(bool)expect_ok { 103 bool ok; 104 void* got_tag; 105 XCTAssertTrue(cq->Next(&got_tag, &ok)); 106 XCTAssertEqual(expect_ok, ok); 107 XCTAssertEqual(tag(i), got_tag); 108} 109 110- (void)server_ok:(int)i { 111 [self verify_ok:srv_cq_.get() i:i expect_ok:true]; 112} 113- (void)client_ok:(int)i { 114 [self verify_ok:&cli_cq_ i:i expect_ok:true]; 115} 116- (void)server_fail:(int)i { 117 [self verify_ok:srv_cq_.get() i:i expect_ok:false]; 118} 119- (void)client_fail:(int)i { 120 [self verify_ok:&cli_cq_ i:i expect_ok:false]; 121} 122 123- (void)setUp { 124 [super setUp]; 125 126 server_host_ = "localhost"; 127 int port = grpc_pick_unused_port_or_die(); 128 server_address_ << server_host_ << ":" << port; 129 // Setup server 130 ServerBuilder builder; 131 builder.AddListeningPort(server_address_.str(), InsecureServerCredentials()); 132 builder.RegisterAsyncGenericService(&generic_service_); 133 // Include a second call to RegisterAsyncGenericService to make sure that 134 // we get an error in the log, since it is not allowed to have 2 async 135 // generic services 136 builder.RegisterAsyncGenericService(&generic_service_); 137 srv_cq_ = builder.AddCompletionQueue(); 138 server_ = builder.BuildAndStart(); 139} 140 141- (void)tearDown { 142 // Put teardown code here. This method is called after the invocation of each test method in the 143 // class. 144 server_->Shutdown(); 145 void* ignored_tag; 146 bool ignored_ok; 147 cli_cq_.Shutdown(); 148 srv_cq_->Shutdown(); 149 while (cli_cq_.Next(&ignored_tag, &ignored_ok)); 150 while (srv_cq_->Next(&ignored_tag, &ignored_ok)); 151 [super tearDown]; 152} 153 154- (void)ResetStub { 155 std::shared_ptr<Channel> channel = 156 CreateChannel(server_address_.str(), InsecureChannelCredentials()); 157 generic_stub_.reset(new GenericStub(channel)); 158} 159 160- (void)SendRpc:(int)num_rpcs { 161 [self SendRpc:num_rpcs check_deadline:false deadline:gpr_inf_future(GPR_CLOCK_MONOTONIC)]; 162} 163 164- (void)SendRpc:(int)num_rpcs check_deadline:(bool)check_deadline deadline:(gpr_timespec)deadline { 165 const std::string kMethodName("/grpc.cpp.test.util.EchoTestService/Echo"); 166 for (int i = 0; i < num_rpcs; i++) { 167 Status recv_status; 168 169 ClientContext cli_ctx; 170 GenericServerContext srv_ctx; 171 GenericServerAsyncReaderWriter stream(&srv_ctx); 172 173 // The string needs to be long enough to test heap-based slice. 174 /*send_request.set_message("Hello world. Hello world. Hello world.");*/ 175 176 if (check_deadline) { 177 cli_ctx.set_deadline(deadline); 178 } 179 180 std::unique_ptr<GenericClientAsyncReaderWriter> call = 181 generic_stub_->Call(&cli_ctx, kMethodName, &cli_cq_, tag(1)); 182 [self client_ok:1]; 183 Slice send_slice = Slice("hello world", 11); 184 std::unique_ptr<ByteBuffer> send_buffer = 185 std::unique_ptr<ByteBuffer>(new ByteBuffer(&send_slice, 1)); 186 call->Write(*send_buffer, tag(2)); 187 // Send ByteBuffer can be destroyed after calling Write. 188 send_buffer.reset(); 189 [self client_ok:2]; 190 call->WritesDone(tag(3)); 191 [self client_ok:3]; 192 193 generic_service_.RequestCall(&srv_ctx, &stream, srv_cq_.get(), srv_cq_.get(), tag(4)); 194 195 [self verify_ok:srv_cq_.get() i:4 expect_ok:true]; 196 XCTAssertEqual(server_host_, srv_ctx.host().substr(0, server_host_.length())); 197 XCTAssertEqual(kMethodName, srv_ctx.method()); 198 199 if (check_deadline) { 200 XCTAssertTrue(gpr_time_similar(deadline, srv_ctx.raw_deadline(), 201 gpr_time_from_millis(1000, GPR_TIMESPAN))); 202 } 203 204 ByteBuffer recv_buffer; 205 stream.Read(&recv_buffer, tag(5)); 206 [self server_ok:5]; 207 XCTAssertTrue(byte_buffer_eq_string(&recv_buffer, "hello world")); 208 209 send_buffer = std::unique_ptr<ByteBuffer>(new ByteBuffer(recv_buffer)); 210 stream.Write(*send_buffer, tag(6)); 211 send_buffer.reset(); 212 [self server_ok:6]; 213 214 stream.Finish(Status::OK, tag(7)); 215 [self server_ok:7]; 216 217 recv_buffer.Clear(); 218 call->Read(&recv_buffer, tag(8)); 219 [self client_ok:8]; 220 XCTAssertTrue(byte_buffer_eq_string(&recv_buffer, "hello world")); 221 222 call->Finish(&recv_status, tag(9)); 223 [self client_ok:9]; 224 225 XCTAssertTrue(recv_status.ok()); 226 } 227} 228 229- (void)testSimpleRpc { 230 [self ResetStub]; 231 [self SendRpc:1]; 232} 233 234- (void)testSequentialRpcs { 235 [self ResetStub]; 236 [self SendRpc:10]; 237} 238 239+ (void)setUp { 240 grpc_test_init(NULL, NULL); 241} 242 243@end 244