Initial checkin of gRPC to third_party/

third_party/grpc/test/cpp/end2end/shutdown_test.cc

+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <thread>
+
+#include <grpc++/channel.h>
+#include <grpc++/client_context.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc/grpc.h>
+#include <grpc/support/sync.h>
+#include <gtest/gtest.h>
+
+#include "src/core/support/env.h"
+#include "src/proto/grpc/testing/echo.grpc.pb.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
+
+using grpc::testing::EchoRequest;
+using grpc::testing::EchoResponse;
+
+namespace grpc {
+namespace testing {
+
+class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
+ public:
+  explicit TestServiceImpl(gpr_event* ev) : ev_(ev) {}
+
+  Status Echo(ServerContext* context, const EchoRequest* request,
+              EchoResponse* response) GRPC_OVERRIDE {
+    gpr_event_set(ev_, (void*)1);
+    while (!context->IsCancelled()) {
+    }
+    return Status::OK;
+  }
+
+ private:
+  gpr_event* ev_;
+};
+
+class ShutdownTest : public ::testing::Test {
+ public:
+  ShutdownTest() : shutdown_(false), service_(&ev_) { gpr_event_init(&ev_); }
+
+  void SetUp() GRPC_OVERRIDE {
+    port_ = grpc_pick_unused_port_or_die();
+    server_ = SetUpServer(port_);
+  }
+
+  std::unique_ptr<Server> SetUpServer(const int port) {
+    grpc::string server_address = "localhost:" + to_string(port);
+
+    ServerBuilder builder;
+    builder.AddListeningPort(server_address, InsecureServerCredentials());
+    builder.RegisterService(&service_);
+    std::unique_ptr<Server> server = builder.BuildAndStart();
+    return server;
+  }
+
+  void TearDown() GRPC_OVERRIDE { GPR_ASSERT(shutdown_); }
+
+  void ResetStub() {
+    string target = "dns:localhost:" + to_string(port_);
+    channel_ = CreateChannel(target, InsecureChannelCredentials());
+    stub_ = grpc::testing::EchoTestService::NewStub(channel_);
+  }
+
+  string to_string(const int number) {
+    std::stringstream strs;
+    strs << number;
+    return strs.str();
+  }
+
+  void SendRequest() {
+    EchoRequest request;
+    EchoResponse response;
+    request.set_message("Hello");
+    ClientContext context;
+    GPR_ASSERT(!shutdown_);
+    Status s = stub_->Echo(&context, request, &response);
+    GPR_ASSERT(shutdown_);
+  }
+
+ protected:
+  std::shared_ptr<Channel> channel_;
+  std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
+  std::unique_ptr<Server> server_;
+  bool shutdown_;
+  int port_;
+  gpr_event ev_;
+  TestServiceImpl service_;
+};
+
+// Tests zookeeper state change between two RPCs
+// TODO(ctiller): leaked objects in this test
+TEST_F(ShutdownTest, ShutdownTest) {
+  ResetStub();
+
+  // send the request in a background thread
+  std::thread thr(std::bind(&ShutdownTest::SendRequest, this));
+
+  // wait for the server to get the event
+  gpr_event_wait(&ev_, gpr_inf_future(GPR_CLOCK_MONOTONIC));
+
+  shutdown_ = true;
+
+  // shutdown should trigger cancellation causing everything to shutdown
+  auto deadline =
+      std::chrono::system_clock::now() + std::chrono::microseconds(100);
+  server_->Shutdown(deadline);
+  EXPECT_GE(std::chrono::system_clock::now(), deadline);
+
+  thr.join();
+}
+
+}  // namespace testing
+}  // namespace grpc
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}