CSchemeArchive_unittest.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2019, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#include <gtest/gtest.h>
#include <mrpt/poses/CPose2D.h>
#include <mrpt/serialization/CArchive.h>
#include <mrpt/serialization/CSchemeArchive.h>
#include <mrpt/serialization/CSchemeArchiveBase.h>
#include <sstream>

// Check if we have jsoncpp to enable those tests:
#include <mrpt/config.h>
#if MRPT_HAS_JSONCPP
#include <json/json.h>
#endif

using namespace mrpt::serialization;

#if MRPT_HAS_JSONCPP
TEST(SchemaSerialization, JSON_archive)
{
    auto arch = archiveJSON();
    mrpt::poses::CPose2D pt1{1.0, 2.0, 3.0}, pt2;
    arch = pt1;
    std::stringstream ss;
    ss << arch;
    auto pos = ss.str().find("\"datatype\" : \"CPose2D\"");
    EXPECT_TRUE(pos != std::string::npos);

    // test deserializing:
    ss.seekg(0);  // rewind for reading
    auto arch2 = archiveJSON();
    // Load the plain text representation into the archive:
    ss >> arch2;
    // Parse the JSON data into an MRPT object:
    arch2.readTo(pt2);

    EXPECT_NEAR(pt1.x(), pt2.x(), 1e-6);
    EXPECT_NEAR(pt1.y(), pt2.y(), 1e-6);
    EXPECT_NEAR(pt1.phi(), pt2.phi(), 1e-6);
}

TEST(SchemaSerialization, JSON_raw)
{
    Json::Value val;
    auto arch = mrpt::serialization::CSchemeArchiveBase(
        std::make_unique<CSchemeArchive<Json::Value>>(val));
    mrpt::poses::CPose2D pt1{1.0, 2.0, 3.0}, pt2;
    arch = pt1;
    std::stringstream ss;
    ss << val;
    auto pos = ss.str().find("\"datatype\" : \"CPose2D\"");
    EXPECT_TRUE(pos != std::string::npos);

    // test deserializing:
    Json::Value val2;
    ss.seekg(0);  // rewind for reading
    ss >> val2;
    auto arch2 = mrpt::serialization::CSchemeArchiveBase(
        std::make_unique<CSchemeArchive<Json::Value>>(val2));
    arch2.readTo(pt2);
    EXPECT_NEAR(pt1.x(), pt2.x(), 1e-6);
    EXPECT_NEAR(pt1.y(), pt2.y(), 1e-6);
    EXPECT_NEAR(pt1.phi(), pt2.phi(), 1e-6);
}

#endif