1 /*
2 *
3 * Copyright 2015 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 #include <grpc/grpc.h>
20 #include <grpc/support/log.h>
21 #include <grpc/support/time.h>
22 #include <grpcpp/channel.h>
23 #include <grpcpp/client_context.h>
24 #include <grpcpp/create_channel.h>
25 #include <grpcpp/server.h>
26 #include <grpcpp/server_builder.h>
27 #include <grpcpp/server_context.h>
28
29 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
30 #include "src/proto/grpc/testing/echo.grpc.pb.h"
31 #include "test/core/util/port.h"
32 #include "test/core/util/test_config.h"
33 #include "test/cpp/util/subprocess.h"
34
35 #include <gtest/gtest.h>
36
37 using grpc::testing::EchoRequest;
38 using grpc::testing::EchoResponse;
39 using std::chrono::system_clock;
40
41 static std::string g_root;
42
43 namespace grpc {
44 namespace testing {
45
46 namespace {
47
48 class ServiceImpl final : public ::grpc::testing::EchoTestService::Service {
49 public:
ServiceImpl()50 ServiceImpl() : bidi_stream_count_(0), response_stream_count_(0) {}
51
BidiStream(ServerContext * context,ServerReaderWriter<EchoResponse,EchoRequest> * stream)52 Status BidiStream(
53 ServerContext* context,
54 ServerReaderWriter<EchoResponse, EchoRequest>* stream) override {
55 bidi_stream_count_++;
56 EchoRequest request;
57 EchoResponse response;
58 while (stream->Read(&request)) {
59 gpr_log(GPR_INFO, "recv msg %s", request.message().c_str());
60 response.set_message(request.message());
61 stream->Write(response);
62 gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
63 gpr_time_from_seconds(1, GPR_TIMESPAN)));
64 }
65 return Status::OK;
66 }
67
ResponseStream(ServerContext * context,const EchoRequest * request,ServerWriter<EchoResponse> * writer)68 Status ResponseStream(ServerContext* context, const EchoRequest* request,
69 ServerWriter<EchoResponse>* writer) override {
70 EchoResponse response;
71 response_stream_count_++;
72 for (int i = 0;; i++) {
73 std::ostringstream msg;
74 msg << "Hello " << i;
75 response.set_message(msg.str());
76 if (!writer->Write(response)) break;
77 gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
78 gpr_time_from_seconds(1, GPR_TIMESPAN)));
79 }
80 return Status::OK;
81 }
82
bidi_stream_count()83 int bidi_stream_count() { return bidi_stream_count_; }
84
response_stream_count()85 int response_stream_count() { return response_stream_count_; }
86
87 private:
88 int bidi_stream_count_;
89 int response_stream_count_;
90 };
91
92 class CrashTest : public ::testing::Test {
93 protected:
CrashTest()94 CrashTest() {}
95
CreateServerAndClient(const std::string & mode)96 std::unique_ptr<Server> CreateServerAndClient(const std::string& mode) {
97 auto port = grpc_pick_unused_port_or_die();
98 std::ostringstream addr_stream;
99 addr_stream << "localhost:" << port;
100 auto addr = addr_stream.str();
101 client_.reset(new SubProcess({g_root + "/server_crash_test_client",
102 "--address=" + addr, "--mode=" + mode}));
103 GPR_ASSERT(client_);
104
105 ServerBuilder builder;
106 builder.AddListeningPort(addr, grpc::InsecureServerCredentials());
107 builder.RegisterService(&service_);
108 return builder.BuildAndStart();
109 }
110
KillClient()111 void KillClient() { client_.reset(); }
112
HadOneBidiStream()113 bool HadOneBidiStream() { return service_.bidi_stream_count() == 1; }
114
HadOneResponseStream()115 bool HadOneResponseStream() { return service_.response_stream_count() == 1; }
116
117 private:
118 std::unique_ptr<SubProcess> client_;
119 ServiceImpl service_;
120 };
121
TEST_F(CrashTest,ResponseStream)122 TEST_F(CrashTest, ResponseStream) {
123 auto server = CreateServerAndClient("response");
124
125 gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
126 gpr_time_from_seconds(60, GPR_TIMESPAN)));
127 KillClient();
128 server->Shutdown();
129 GPR_ASSERT(HadOneResponseStream());
130 }
131
TEST_F(CrashTest,BidiStream)132 TEST_F(CrashTest, BidiStream) {
133 auto server = CreateServerAndClient("bidi");
134
135 gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
136 gpr_time_from_seconds(60, GPR_TIMESPAN)));
137 KillClient();
138 server->Shutdown();
139 GPR_ASSERT(HadOneBidiStream());
140 }
141
142 } // namespace
143
144 } // namespace testing
145 } // namespace grpc
146
main(int argc,char ** argv)147 int main(int argc, char** argv) {
148 std::string me = argv[0];
149 auto lslash = me.rfind('/');
150 if (lslash != std::string::npos) {
151 g_root = me.substr(0, lslash);
152 } else {
153 g_root = ".";
154 }
155
156 grpc_test_init(argc, argv);
157 ::testing::InitGoogleTest(&argc, argv);
158 return RUN_ALL_TESTS();
159 }
160