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//
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//
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// Copyright 2015 gRPC authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//
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#include <gtest/gtest.h>
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#include "absl/log/check.h"
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#include "absl/memory/memory.h"
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#include <grpc/grpc.h>
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#include <grpc/support/log.h>
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#include <grpc/support/time.h>
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#include <grpcpp/channel.h>
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#include <grpcpp/client_context.h>
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#include <grpcpp/create_channel.h>
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#include <grpcpp/server.h>
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#include <grpcpp/server_builder.h>
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#include <grpcpp/server_context.h>
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#include "src/core/lib/gprpp/crash.h"
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#include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
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#include "src/proto/grpc/testing/echo.grpc.pb.h"
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#include "test/core/test_util/port.h"
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#include "test/core/test_util/test_config.h"
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#include "test/cpp/util/subprocess.h"
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static std::string g_root;
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namespace grpc {
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namespace testing {
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namespace {
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class CrashTest : public ::testing::Test {
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protected:
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CrashTest() {}
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std::unique_ptr<grpc::testing::EchoTestService::Stub> CreateServerAndStub() {
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auto port = grpc_pick_unused_port_or_die();
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std::ostringstream addr_stream;
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addr_stream << "localhost:" << port;
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auto addr = addr_stream.str();
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server_ = std::make_unique<SubProcess>(std::vector<std::string>({
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g_root + "/client_crash_test_server",
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"--address=" + addr,
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}));
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CHECK(server_);
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return grpc::testing::EchoTestService::NewStub(
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grpc::CreateChannel(addr, InsecureChannelCredentials()));
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}
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void KillServer() { server_.reset(); }
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private:
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std::unique_ptr<SubProcess> server_;
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};
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TEST_F(CrashTest, KillBeforeWrite) {
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auto stub = CreateServerAndStub();
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EchoRequest request;
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EchoResponse response;
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ClientContext context;
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context.set_wait_for_ready(true);
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auto stream = stub->BidiStream(&context);
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request.set_message("Hello");
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EXPECT_TRUE(stream->Write(request));
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EXPECT_TRUE(stream->Read(&response));
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EXPECT_EQ(response.message(), request.message());
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KillServer();
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request.set_message("You should be dead");
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// This may succeed or fail depending on the state of the TCP connection
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stream->Write(request);
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// But the read will definitely fail
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EXPECT_FALSE(stream->Read(&response));
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EXPECT_FALSE(stream->Finish().ok());
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}
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TEST_F(CrashTest, KillAfterWrite) {
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auto stub = CreateServerAndStub();
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EchoRequest request;
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EchoResponse response;
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ClientContext context;
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context.set_wait_for_ready(true);
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auto stream = stub->BidiStream(&context);
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request.set_message("Hello");
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EXPECT_TRUE(stream->Write(request));
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EXPECT_TRUE(stream->Read(&response));
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EXPECT_EQ(response.message(), request.message());
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request.set_message("I'm going to kill you");
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EXPECT_TRUE(stream->Write(request));
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KillServer();
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// This may succeed or fail depending on how quick the server was
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stream->Read(&response);
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EXPECT_FALSE(stream->Finish().ok());
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}
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} // namespace
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} // namespace testing
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} // namespace grpc
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int main(int argc, char** argv) {
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std::string me = argv[0];
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auto lslash = me.rfind('/');
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if (lslash != std::string::npos) {
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g_root = me.substr(0, lslash);
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} else {
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g_root = ".";
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}
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grpc::testing::TestEnvironment env(&argc, argv);
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::testing::InitGoogleTest(&argc, argv);
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// Order seems to matter on these tests: run three times to eliminate that
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for (int i = 0; i < 3; i++) {
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if (RUN_ALL_TESTS() != 0) {
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return 1;
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}
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}
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return 0;
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}
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