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// Copyright (c) 2020 by Robert Bosch GmbH. All rights reserved.
// Copyright (c) 2021 by Apex.AI Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
#ifndef TEST_HELPERS_FIXTURE_DDS_GATEWAY_H
#define TEST_HELPERS_FIXTURE_DDS_GATEWAY_H
#include "iceoryx_posh/gateway/channel.hpp"
#include "mocks/google_mocks.hpp"
#include "test.hpp"
template <typename IceoryxTerminal, typename DDSTerminal>
class DDSGatewayTestFixture : public Test
{
public:
// Holds mocks created by tests to be used by the channel factory.
std::vector<std::shared_ptr<IceoryxTerminal>> m_stagedMockIceoryxTerminal;
std::vector<std::shared_ptr<DDSTerminal>> m_stagedMockDDSTerminal;
// Marks where in the array to look for a valid mock.
// Indexes lower than the marker are assumed to have been moved out and thus undefined.
size_t m_mockIceoryxTerminalCursor = 0;
size_t m_mockDDSTerminalMarker = 0;
void SetUp(){};
void TearDown()
{
m_stagedMockIceoryxTerminal.clear();
m_mockIceoryxTerminalCursor = 0;
m_stagedMockDDSTerminal.clear();
m_mockDDSTerminalMarker = 0;
};
// Create a new dds mock
std::shared_ptr<DDSTerminal> createMockDDSTerminal(const iox::capro::ServiceDescription& sd)
{
return std::shared_ptr<DDSTerminal>(new DDSTerminal(sd));
}
// Stage the given mock to be used in the channel factory
void stageMockDDSTerminal(std::shared_ptr<DDSTerminal>&& mock)
{
// Pass ownership - do not hold a reference here.
m_stagedMockDDSTerminal.emplace_back(std::move(mock));
};
// Create a new iceoryx mock
template <typename IceoryxPubSubOptions>
std::shared_ptr<IceoryxTerminal> createMockIceoryxTerminal(const iox::capro::ServiceDescription& sd,
const IceoryxPubSubOptions& options)
{
return std::shared_ptr<IceoryxTerminal>(new IceoryxTerminal(sd, options));
}
// Stage the given mock to be used in the channel factory
void stageMockIceoryxTerminal(std::shared_ptr<IceoryxTerminal>&& mock)
{
m_stagedMockIceoryxTerminal.emplace_back(std::move(mock));
};
// Creates channels to be used in tests.
// Channels will contain staged mocks, or empty mocks if none are staged.
// The factory method can be passed to test gateways, allowing injection of mocks.
template <typename IceoryxPubSubOptions>
iox::cxx::expected<iox::gw::Channel<IceoryxTerminal, DDSTerminal>, iox::gw::GatewayError>
channelFactory(iox::capro::ServiceDescription sd, const IceoryxPubSubOptions& options) noexcept
{
// Get or create a mock iceoryx terminal
std::shared_ptr<IceoryxTerminal> mockIceoryxTerminal;
if (m_mockIceoryxTerminalCursor < m_stagedMockIceoryxTerminal.size())
{
// Important - must pass ownership to receiver so object is deleted when the receiver is done with it.
mockIceoryxTerminal = std::move(m_stagedMockIceoryxTerminal.at(m_mockIceoryxTerminalCursor++));
}
else
{
mockIceoryxTerminal = createMockIceoryxTerminal(sd, options);
}
// Get or create a mock dds terminal
std::shared_ptr<DDSTerminal> mockDataWriter;
if (m_mockDDSTerminalMarker < m_stagedMockDDSTerminal.size())
{
// Important - must pass ownership to receiver so object is deleted when the receiver is done with it.
mockDataWriter = std::move(m_stagedMockDDSTerminal.at(m_mockDDSTerminalMarker++));
}
else
{
mockDataWriter = createMockDDSTerminal(sd);
}
return iox::cxx::success<iox::gw::Channel<IceoryxTerminal, DDSTerminal>>(
iox::gw::Channel<IceoryxTerminal, DDSTerminal>(
sd, std::move(mockIceoryxTerminal), std::move(mockDataWriter)));
}
};
#endif // TEST_HELPERS_FIXTURE_DDS_GATEWAY_H
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