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// Copyright 2022 Proyectos y Sistemas de Mantenimiento SL (eProsima).
//
// 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.
#include <gtest/gtest.h>
#include <fastdds/rtps/common/EntityId_t.hpp>
using EntityId = eprosima::fastdds::rtps::EntityId_t;
namespace test {
/**
* @brief Get a manually sorted entityid vector object
*
* @note To test more entities just add to this vector new entities sorted manually.
*/
std::vector<EntityId> get_sorted_entityid_vector()
{
std::vector<EntityId> result_vector;
// Create entities with different values to compare them afterwards
// All zeros
{
EntityId entity; // Default constructor
result_vector.push_back(entity);
}
// Last value one
{
EntityId entity; // Default constructor
entity.value[entity.size - 1] = 0x01;
result_vector.push_back(entity);
}
// Last value ff
{
EntityId entity; // Default constructor
entity.value[entity.size - 1] = 0xff;
result_vector.push_back(entity);
}
// 2 value 0x66
{
EntityId entity; // Default constructor
entity.value[2] = 0x66;
result_vector.push_back(entity);
}
// First value one
{
EntityId entity; // Default constructor
entity.value[0] = 0x01;
result_vector.push_back(entity);
}
// First value ff
{
EntityId entity; // Default constructor
entity.value[0] = 0xff;
result_vector.push_back(entity);
}
// Create a vector that is sorted
return result_vector;
}
} // namespace test
/**
* @brief This test checks Entity Id compare \c cmp method.
*
* Uses a manually sorted vector of entities to check cmp result.
*
* @note this method checks cmp sign, it does not use memcmp as testing the function with itself would not give info.
*/
TEST(EntityIdTests, cmp)
{
auto manually_sorted_entities = test::get_sorted_entityid_vector();
for (std::size_t i = 0; i < manually_sorted_entities.size(); ++i)
{
for (std::size_t j = 0; j < manually_sorted_entities.size(); ++j)
{
int result = EntityId::cmp(manually_sorted_entities[i], manually_sorted_entities[j]);
if (i == j)
{
// [i] == [j] so cmp should be 0
ASSERT_EQ(result, 0);
}
else if (i < j)
{
// [i] < [j] so cmp should be negative
ASSERT_LT(result, 0);
}
else
{
// [i] > [j] so cmp should be negative
ASSERT_GT(result, 0);
}
}
}
}
/**
* @brief This test checks Entity Id compare \c operator< method.
*
* Uses a manually sorted vector of entities to check operator< result.
*
* @note this method checks cmp sign, it does not use memcmp as testing the function with itself would not give info.
*/
TEST(EntityIdTests, minor_opertor)
{
auto manually_sorted_entities = test::get_sorted_entityid_vector();
for (std::size_t i = 0; i < manually_sorted_entities.size(); ++i)
{
for (std::size_t j = 0; j < manually_sorted_entities.size(); ++j)
{
bool result = manually_sorted_entities[i] < manually_sorted_entities[j];
if (i == j)
{
// [i] == [j] so false
ASSERT_FALSE(result);
}
else if (i < j)
{
// [i] < [j] so true
ASSERT_TRUE(result);
}
else
{
// [i] > [j] so false
ASSERT_FALSE(result);
}
}
}
}
/**
* @brief This test checks Entity Id compare \c operator== and \c operator!= method.
*
* Uses a manually sorted vector of entities to check cmp result.
*
* @note this method checks cmp sign, it does not use memcmp as testing the function with itself would not give info.
*/
TEST(EntityIdTests, equality)
{
auto manually_sorted_entities = test::get_sorted_entityid_vector();
for (std::size_t i = 0; i < manually_sorted_entities.size(); ++i)
{
for (std::size_t j = 0; j < manually_sorted_entities.size(); ++j)
{
bool result_equal = manually_sorted_entities[i] == manually_sorted_entities[j];
bool result_non_equal = manually_sorted_entities[i] != manually_sorted_entities[j];
if (i == j)
{
ASSERT_TRUE(result_equal);
ASSERT_FALSE(result_non_equal);
}
else
{
ASSERT_FALSE(result_equal);
ASSERT_TRUE(result_non_equal);
}
}
}
}
int main(
int argc,
char** argv)
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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