clio/tests/unit/web/ng/SubscriptionContextTests.cpp

//------------------------------------------------------------------------------
/*
    This file is part of clio: https://github.com/XRPLF/clio
    Copyright (c) 2024, the clio developers.

    Permission to use, copy, modify, and distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
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    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
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    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================

#include "util/AsioContextTestFixture.hpp"
#include "util/Taggable.hpp"
#include "util/newconfig/ConfigDefinition.hpp"
#include "util/newconfig/ConfigValue.hpp"
#include "util/newconfig/Types.hpp"
#include "web/SubscriptionContextInterface.hpp"
#include "web/ng/Connection.hpp"
#include "web/ng/Error.hpp"
#include "web/ng/SubscriptionContext.hpp"
#include "web/ng/impl/MockWsConnection.hpp"

#include <boost/asio/buffer.hpp>
#include <boost/asio/post.hpp>
#include <boost/asio/spawn.hpp>
#include <boost/beast/core/buffers_to_string.hpp>
#include <boost/beast/core/flat_buffer.hpp>
#include <boost/system/errc.hpp>
#include <gmock/gmock.h>
#include <gtest/gtest.h>

#include <cstddef>
#include <memory>
#include <optional>
#include <string>

using namespace web::ng;
using namespace util::config;

struct ng_SubscriptionContextTests : SyncAsioContextTest {
    util::TagDecoratorFactory tagFactory_{ClioConfigDefinition{
        {"log_tag_style", ConfigValue{ConfigType::String}.defaultValue("uint")},
    }};
    MockWsConnectionImpl connection_{"some ip", boost::beast::flat_buffer{}, tagFactory_};
    testing::StrictMock<testing::MockFunction<bool(web::ng::Error const&, Connection const&)>> errorHandler_;

    SubscriptionContext
    makeSubscriptionContext(boost::asio::yield_context yield, std::optional<size_t> maxSendQueueSize = std::nullopt)
    {
        return SubscriptionContext{tagFactory_, connection_, maxSendQueueSize, yield, errorHandler_.AsStdFunction()};
    }
};

TEST_F(ng_SubscriptionContextTests, Send)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        auto const message = std::make_shared<std::string>("some message");

        EXPECT_CALL(connection_, sendBuffer).WillOnce([&message](boost::asio::const_buffer buffer, auto&&) {
            EXPECT_EQ(boost::beast::buffers_to_string(buffer), *message);
            return std::nullopt;
        });
        subscriptionContext.send(message);
        subscriptionContext.disconnect(yield);
    });
}

TEST_F(ng_SubscriptionContextTests, SendOrder)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        auto const message1 = std::make_shared<std::string>("message1");
        auto const message2 = std::make_shared<std::string>("message2");

        testing::Sequence const sequence;
        EXPECT_CALL(connection_, sendBuffer)
            .InSequence(sequence)
            .WillOnce([&message1](boost::asio::const_buffer buffer, auto&&) {
                EXPECT_EQ(boost::beast::buffers_to_string(buffer), *message1);
                return std::nullopt;
            });
        EXPECT_CALL(connection_, sendBuffer)
            .InSequence(sequence)
            .WillOnce([&message2](boost::asio::const_buffer buffer, auto&&) {
                EXPECT_EQ(boost::beast::buffers_to_string(buffer), *message2);
                return std::nullopt;
            });

        subscriptionContext.send(message1);
        subscriptionContext.send(message2);
        subscriptionContext.disconnect(yield);
    });
}

TEST_F(ng_SubscriptionContextTests, SendFailed)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        auto const message = std::make_shared<std::string>("some message");

        EXPECT_CALL(connection_, sendBuffer).WillOnce([&message](boost::asio::const_buffer buffer, auto&&) {
            EXPECT_EQ(boost::beast::buffers_to_string(buffer), *message);
            return boost::system::errc::make_error_code(boost::system::errc::not_supported);
        });
        EXPECT_CALL(errorHandler_, Call).WillOnce(testing::Return(true));
        EXPECT_CALL(connection_, close);
        subscriptionContext.send(message);
        subscriptionContext.disconnect(yield);
    });
}

TEST_F(ng_SubscriptionContextTests, SendTooManySubscriptions)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield, 1);
        auto const message = std::make_shared<std::string>("message1");

        EXPECT_CALL(connection_, sendBuffer)
            .WillOnce([&message](boost::asio::const_buffer buffer, boost::asio::yield_context innerYield) {
                boost::asio::post(innerYield);  // simulate send is slow by switching to another coroutine
                EXPECT_EQ(boost::beast::buffers_to_string(buffer), *message);
                return std::nullopt;
            });
        EXPECT_CALL(connection_, close);

        subscriptionContext.send(message);
        subscriptionContext.send(message);
        subscriptionContext.send(message);
        subscriptionContext.disconnect(yield);
    });
}

TEST_F(ng_SubscriptionContextTests, SendAfterDisconnect)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        auto const message = std::make_shared<std::string>("some message");
        subscriptionContext.disconnect(yield);
        subscriptionContext.send(message);
    });
}

TEST_F(ng_SubscriptionContextTests, OnDisconnect)
{
    testing::StrictMock<testing::MockFunction<void(web::SubscriptionContextInterface*)>> onDisconnect;

    runSpawn([&](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        subscriptionContext.onDisconnect(onDisconnect.AsStdFunction());
        EXPECT_CALL(onDisconnect, Call(&subscriptionContext));
        subscriptionContext.disconnect(yield);
    });
}

TEST_F(ng_SubscriptionContextTests, SetApiSubversion)
{
    runSpawn([this](boost::asio::yield_context yield) {
        auto subscriptionContext = makeSubscriptionContext(yield);
        subscriptionContext.setApiSubversion(42);
        EXPECT_EQ(subscriptionContext.apiSubversion(), 42);
    });
}