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// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <asiolink/asio_wrapper.h>
#include <asiolink/io_service.h>
#include <http/http_acceptor.h>
#include <http/connection.h>
#include <http/connection_pool.h>
#include <http/post_request_json.h>
#include <http/response_creator.h>
#include <http/response_json.h>
#include <http/tests/response_test.h>
#include <boost/shared_ptr.hpp>
#include <gtest/gtest.h>
#include <algorithm>
using namespace isc::asiolink;
using namespace isc::http;
using namespace isc::http::test;
namespace {
/// @brief Test HTTP response.
typedef TestHttpResponseBase<HttpResponseJson> Response;
/// @brief Pointer to test HTTP response.
typedef boost::shared_ptr<Response> ResponsePtr;
/// @brief Implementation of the @ref HttpResponseCreator.
class TestHttpResponseCreator : public HttpResponseCreator {
public:
/// @brief Create a new request.
///
/// @return Pointer to the new instance of the @ref HttpRequest.
virtual HttpRequestPtr
createNewHttpRequest() const {
return (HttpRequestPtr(new PostHttpRequestJson()));
}
private:
/// @brief Creates HTTP response.
///
/// @param request Pointer to the HTTP request.
/// @return Pointer to the generated HTTP response.
virtual HttpResponsePtr
createStockHttpResponse(const ConstHttpRequestPtr& request,
const HttpStatusCode& status_code) const {
// The request hasn't been finalized so the request object
// doesn't contain any information about the HTTP version number
// used. But, the context should have this data (assuming the
// HTTP version is parsed ok).
HttpVersion http_version(request->context()->http_version_major_,
request->context()->http_version_minor_);
// This will generate the response holding JSON content.
ResponsePtr response(new Response(http_version, status_code));
return (response);
}
/// @brief Creates HTTP response.
///
/// @param request Pointer to the HTTP request.
/// @return Pointer to the generated HTTP OK response with no content.
virtual HttpResponsePtr
createDynamicHttpResponse(const ConstHttpRequestPtr& request) {
// The simplest thing is to create a response with no content.
// We don't need content to test our class.
ResponsePtr response(new Response(request->getHttpVersion(),
HttpStatusCode::OK));
return (response);
}
};
/// @brief Derivation of @ref HttpConnectionPool exposing protected member.
class TestHttpConnectionPool : public HttpConnectionPool {
public:
using HttpConnectionPool::connections_;
/// @brief Checks if specified connection belongs to the pool.
bool hasConnection(const HttpConnectionPtr& conn) const {
return (std::find(connections_.begin(), connections_.end(), conn)
!= connections_.end());
}
};
/// @brief Test fixture class for @ref HttpConnectionPool.
class HttpConnectionPoolTest : public ::testing::Test {
public:
/// @brief Constructor.
HttpConnectionPoolTest()
: io_service_(), acceptor_(io_service_), connection_pool_(),
response_creator_(new TestHttpResponseCreator()) {
}
IOService io_service_; ///< IO service.
HttpAcceptor acceptor_; ///< Test acceptor.
HttpConnectionPool connection_pool_; ///< Test connection pool.
HttpResponseCreatorPtr response_creator_; ///< Test response creator.
};
// This test verifies that connections can be added to the pool and removed.
TEST_F(HttpConnectionPoolTest, startStop) {
// Create two distinct connections.
HttpConnectionPtr conn1(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
HttpConnectionPtr conn2(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
// The pool should be initially empty.
TestHttpConnectionPool pool;
ASSERT_TRUE(pool.connections_.empty());
// Start first connection and check that it has been added to the pool.
ASSERT_NO_THROW(pool.start(conn1));
ASSERT_EQ(1, pool.connections_.size());
ASSERT_EQ(1, pool.hasConnection(conn1));
// Start second connection and check that it also has been added.
ASSERT_NO_THROW(pool.start(conn2));
ASSERT_EQ(2, pool.connections_.size());
ASSERT_EQ(1, pool.hasConnection(conn2));
// Stop first connection.
ASSERT_NO_THROW(pool.stop(conn1));
ASSERT_EQ(1, pool.connections_.size());
// Check that it has been removed but the second connection is still there.
ASSERT_EQ(0, pool.hasConnection(conn1));
ASSERT_EQ(1, pool.hasConnection(conn2));
// Remove second connection and verify.
ASSERT_NO_THROW(pool.stop(conn2));
EXPECT_TRUE(pool.connections_.empty());
}
// Check that all connections can be remove with a single call.
TEST_F(HttpConnectionPoolTest, stopAll) {
HttpConnectionPtr conn1(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
HttpConnectionPtr conn2(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
TestHttpConnectionPool pool;
ASSERT_NO_THROW(pool.start(conn1));
ASSERT_NO_THROW(pool.start(conn2));
// There are two distinct connections in the pool.
ASSERT_EQ(2, pool.connections_.size());
// This should remove all connections.
ASSERT_NO_THROW(pool.stopAll());
EXPECT_TRUE(pool.connections_.empty());
}
// Check that stopping non-existing connection is no-op.
TEST_F(HttpConnectionPoolTest, stopInvalid) {
HttpConnectionPtr conn1(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
HttpConnectionPtr conn2(new HttpConnection(io_service_, acceptor_,
connection_pool_,
response_creator_,
HttpAcceptorCallback(),
1000));
TestHttpConnectionPool pool;
ASSERT_NO_THROW(pool.start(conn1));
ASSERT_NO_THROW(pool.stop(conn2));
ASSERT_EQ(1, pool.connections_.size());
ASSERT_EQ(1, pool.hasConnection(conn1));
}
}
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