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/*
*
* Copyright 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 "test/cpp/util/grpc_tool.h"
#include <sstream>
#include <grpc++/channel.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/ext/proto_server_reflection_plugin.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc/grpc.h>
#include <gtest/gtest.h>
#include "src/proto/grpc/testing/echo.grpc.pb.h"
#include "src/proto/grpc/testing/echo.pb.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"
#include "test/cpp/util/cli_credentials.h"
#include "test/cpp/util/string_ref_helper.h"
using grpc::testing::EchoRequest;
using grpc::testing::EchoResponse;
namespace grpc {
namespace testing {
namespace {
class TestCliCredentials GRPC_FINAL : public grpc::testing::CliCredentials {
public:
std::shared_ptr<grpc::ChannelCredentials> GetCredentials() const
GRPC_OVERRIDE {
return InsecureChannelCredentials();
}
const grpc::string GetCredentialUsage() const GRPC_OVERRIDE { return ""; }
};
} // namespame
class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
public:
Status Echo(ServerContext* context, const EchoRequest* request,
EchoResponse* response) GRPC_OVERRIDE {
if (!context->client_metadata().empty()) {
for (std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator
iter = context->client_metadata().begin();
iter != context->client_metadata().end(); ++iter) {
context->AddInitialMetadata(ToString(iter->first),
ToString(iter->second));
}
}
context->AddTrailingMetadata("trailing_key", "trailing_value");
response->set_message(request->message());
return Status::OK;
}
};
class GrpcToolTest : public ::testing::Test {
protected:
GrpcToolTest() {}
// SetUpServer cannot be used with EXPECT_EXIT. grpc_pick_unused_port_or_die()
// uses atexit() to free chosen ports, and it will spawn a new thread in
// resolve_address_posix.c:192 at exit time.
const grpc::string SetUpServer() {
std::ostringstream server_address;
int port = grpc_pick_unused_port_or_die();
server_address << "localhost:" << port;
// Setup server
ServerBuilder builder;
builder.AddListeningPort(server_address.str(), InsecureServerCredentials());
builder.RegisterService(&service_);
server_ = builder.BuildAndStart();
return server_address.str();
}
void ShutdownServer() { server_->Shutdown(); }
std::unique_ptr<Server> server_;
TestServiceImpl service_;
reflection::ProtoServerReflectionPlugin plugin_;
};
static bool PrintStream(std::stringstream* ss, const grpc::string& output) {
(*ss) << output << std::endl;
return true;
}
template <typename T>
static size_t ArraySize(T& a) {
return ((sizeof(a) / sizeof(*(a))) /
static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))));
}
#define USAGE_REGEX "( grpc_cli .+\n){2,10}"
TEST_F(GrpcToolTest, NoCommand) {
// Test input "grpc_cli"
std::stringstream output_stream;
const char* argv[] = {"grpc_cli"};
// Exit with 1, print usage instruction in stderr
EXPECT_EXIT(
GrpcToolMainLib(
ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream, std::placeholders::_1)),
::testing::ExitedWithCode(1), "No command specified\n" USAGE_REGEX);
// No output
EXPECT_TRUE(0 == output_stream.tellp());
}
TEST_F(GrpcToolTest, InvalidCommand) {
// Test input "grpc_cli"
std::stringstream output_stream;
const char* argv[] = {"grpc_cli", "abc"};
// Exit with 1, print usage instruction in stderr
EXPECT_EXIT(
GrpcToolMainLib(
ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream, std::placeholders::_1)),
::testing::ExitedWithCode(1), "Invalid command 'abc'\n" USAGE_REGEX);
// No output
EXPECT_TRUE(0 == output_stream.tellp());
}
TEST_F(GrpcToolTest, HelpCommand) {
// Test input "grpc_cli help"
std::stringstream output_stream;
const char* argv[] = {"grpc_cli", "help"};
// Exit with 1, print usage instruction in stderr
EXPECT_EXIT(GrpcToolMainLib(ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream,
std::placeholders::_1)),
::testing::ExitedWithCode(1), USAGE_REGEX);
// No output
EXPECT_TRUE(0 == output_stream.tellp());
}
TEST_F(GrpcToolTest, CallCommand) {
// Test input "grpc_cli call Echo"
std::stringstream output_stream;
const grpc::string server_address = SetUpServer();
const char* argv[] = {"grpc_cli", "call", server_address.c_str(), "Echo",
"message: 'Hello'"};
EXPECT_TRUE(0 == GrpcToolMainLib(ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream,
std::placeholders::_1)));
// Expected output: "message: \"Hello\""
EXPECT_TRUE(NULL !=
strstr(output_stream.str().c_str(), "message: \"Hello\""));
ShutdownServer();
}
TEST_F(GrpcToolTest, TooFewArguments) {
// Test input "grpc_cli call localhost:<port> Echo "message: 'Hello'"
std::stringstream output_stream;
const char* argv[] = {"grpc_cli", "call", "Echo"};
// Exit with 1
EXPECT_EXIT(
GrpcToolMainLib(
ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream, std::placeholders::_1)),
::testing::ExitedWithCode(1), ".*Wrong number of arguments for call.*");
// No output
EXPECT_TRUE(0 == output_stream.tellp());
}
TEST_F(GrpcToolTest, TooManyArguments) {
// Test input "grpc_cli call localhost:<port> Echo Echo "message: 'Hello'"
std::stringstream output_stream;
const char* argv[] = {"grpc_cli", "call", "localhost:10000",
"Echo", "Echo", "message: 'Hello'"};
// Exit with 1
EXPECT_EXIT(
GrpcToolMainLib(
ArraySize(argv), argv, TestCliCredentials(),
std::bind(PrintStream, &output_stream, std::placeholders::_1)),
::testing::ExitedWithCode(1), ".*Wrong number of arguments for call.*");
// No output
EXPECT_TRUE(0 == output_stream.tellp());
}
} // namespace testing
} // namespace grpc
int main(int argc, char** argv) {
grpc_test_init(argc, argv);
::testing::InitGoogleTest(&argc, argv);
::testing::FLAGS_gtest_death_test_style = "threadsafe";
return RUN_ALL_TESTS();
}
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