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/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Thomas Voß <thomas.voss@canonical.com>
*/
#include <core/net/error.h>
#include <core/net/http/client.h>
#include <core/net/http/content_type.h>
#include <core/net/http/request.h>
#include <core/net/http/response.h>
#include "httpbin.h"
#include "table.h"
#include <gtest/gtest.h>
#include <json/json.h>
#include <cmath>
#include <future>
namespace http = core::net::http;
namespace json = Json;
namespace net = core::net;
namespace
{
struct HttpClientLoadTest : public ::testing::Test
{
typedef std::function<std::shared_ptr<http::Request>(const std::shared_ptr<http::Client>&)> RequestFactory;
typedef std::function<bool (const http::Response)> ResponseVerifier;
void run(const RequestFactory& request_factory, const ResponseVerifier& response_verifier)
{
// We obtain a default client instance, dispatching to the default implementation.
auto client = http::make_client();
// Execute the client
std::thread worker{[client]() { client->run(); }};
// Url pointing to the resource we would like to access via http.
auto url = std::string(httpbin::host) + httpbin::resources::get();
std::size_t completed{1};
std::size_t total{200};
auto on_completed = [&completed, total, client]()
{
if (++completed == total)
{
auto timings = client->timings();
testing::Table::Row<15, '|'> row;
testing::Table::Row<15, '|'>::HorizontalSeparator<5> sep;
std::cout << sep;
std::cout << (row << "Indicator" << "Min [s]" << "Max [s]" << "Mean [s]" << "Std. Dev. [s]");
std::cout << sep;
std::cout << (row << "NameLookup" << timings.name_look_up.min.count() << timings.name_look_up.max.count() << timings.name_look_up.mean.count() << std::sqrt(timings.name_look_up.variance.count()));
std::cout << (row << "Connect" << timings.connect.min.count() << timings.connect.max.count() << timings.connect.mean.count() << std::sqrt(timings.connect.variance.count()));
std::cout << (row << "AppConnect" << timings.app_connect.min.count() << timings.app_connect.max.count() << timings.app_connect.mean.count() << std::sqrt(timings.app_connect.variance.count()));
std::cout << (row << "PreTransfer" << timings.pre_transfer.min.count() << timings.pre_transfer.max.count() << timings.pre_transfer.mean.count() << std::sqrt(timings.pre_transfer.variance.count()));
std::cout << (row << "StartTransfer" << timings.start_transfer.min.count() << timings.start_transfer.max.count() << timings.start_transfer.mean.count() << std::sqrt(timings.start_transfer.variance.count()));
std::cout << (row << "Total" << timings.total.min.count() << timings.total.max.count() << timings.total.mean.count() << std::sqrt(timings.total.variance.count()));
std::cout << sep;
client->stop();
}
};
for (unsigned int i = 0; i < total; i++)
{
// The client mostly acts as a factory for http requests.
auto request = request_factory(client);
//auto once = client->request_store().add(request);
// We finally execute the query asynchronously.
request->async_execute(
http::Request::Handler()
.on_response([on_completed, response_verifier](const core::net::http::Response& response) mutable
{
EXPECT_TRUE(response_verifier(response));
on_completed();
//once();
})
.on_error([on_completed](const core::net::Error&) mutable
{
on_completed();
//once();
}));
}
// We shut down our worker threads
if (worker.joinable())
worker.join();
}
};
bool init()
{
static httpbin::Instance instance;
return true;
}
static const bool is_initialized __attribute__((used)) = init();
}
TEST_F(HttpClientLoadTest, async_head_request_for_existing_resource_succeeds)
{
auto url = std::string(httpbin::host) + httpbin::resources::get();
auto request_factory = [url](const std::shared_ptr<http::Client>& client)
{
return client->head(
http::Request::Configuration::from_uri_as_string(url));
};
auto response_verifier = [](const http::Response& response) -> bool
{
// We expect the query to complete successfully
EXPECT_EQ(core::net::http::Status::ok, response.status);
return not ::testing::Test::HasFailure();
};
run(request_factory, response_verifier);
}
TEST_F(HttpClientLoadTest, async_get_request_for_existing_resource_succeeds)
{
auto url = std::string(httpbin::host) + httpbin::resources::get();
auto request_factory = [url](const std::shared_ptr<http::Client>& client)
{
return client->get(
http::Request::Configuration::from_uri_as_string(url));
};
auto response_verifier = [url](const http::Response& response) -> bool
{
// All endpoint data on httpbin.org is JSON encoded.
json::Value root;
json::CharReaderBuilder builder;
std::unique_ptr<json::CharReader> reader(builder.newCharReader());
// We expect the query to complete successfully
EXPECT_EQ(core::net::http::Status::ok, response.status);
// Parsing the body of the response as JSON should succeed.
EXPECT_TRUE(reader->parse(response.body.c_str(), response.body.c_str() + response.body.size(), &root, NULL));
// The url field of the payload should equal the original url we requested.
EXPECT_EQ(url, root["url"].asString());
return not ::testing::Test::HasFailure();
};
run(request_factory, response_verifier);
}
TEST_F(HttpClientLoadTest, async_post_request_for_existing_resource_succeeds)
{
auto url = std::string(httpbin::host) + httpbin::resources::post();
auto payload = "{ 'test': 'test' }";
auto request_factory = [url, payload](const std::shared_ptr<http::Client>& client)
{
return client->post(
http::Request::Configuration::from_uri_as_string(url),
payload,
core::net::http::ContentType::json);
};
auto response_verifier = [payload](const http::Response& response) -> bool
{
// All endpoint data on httpbin.org is JSON encoded.
json::Value root;
json::CharReaderBuilder builder;
std::unique_ptr<json::CharReader> reader(builder.newCharReader());
// We expect the query to complete successfully
EXPECT_EQ(core::net::http::Status::ok, response.status);
// Parsing the body of the response as JSON should succeed.
EXPECT_TRUE(reader->parse(response.body.c_str(), response.body.c_str() + response.body.size(), &root, NULL));
// The url field of the payload should equal the original url we requested.
EXPECT_EQ(payload, root["data"].asString());
return not ::testing::Test::HasFailure();
};
run(request_factory, response_verifier);
}
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