exception_unittest.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2020, 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/core/exceptions.h>
#include <algorithm>  // count()
#include <sstream>

TEST(exception, stackedExceptionBasic)
{
    EXPECT_THROW({ THROW_STACKED_EXCEPTION; }, std::logic_error);
}

void test_except_3rd_lvl()
{
    MRPT_START
    THROW_EXCEPTION("Aw!");
    MRPT_END
}

void test_except_2nd_lvl()
{
    MRPT_START
    test_except_3rd_lvl();
    MRPT_END
}

void test_except_toplevel()
{
    MRPT_START
    test_except_2nd_lvl();
    MRPT_END
}

TEST(exception, stackedExceptionComplex)
{
    try
    {
        test_except_toplevel();
        GTEST_FAIL() << "Shouldn't reach here.";
    }
    catch (const std::exception& e)
    {
        const auto sExc = mrpt::exception_to_str(e);
        // std::cerr << sExc;
        const auto num_lines = std::count(sExc.begin(), sExc.end(), '\n');
        EXPECT_EQ(num_lines, 6);
    }
}

TEST(exception, assertException)
{
    bool trueValue = true;
    bool falseValue = false;
    EXPECT_THROW({ ASSERT_EQUAL_(trueValue, falseValue); }, std::logic_error);
}

TEST(exception, stackedExceptionCustomMsg)
{
    EXPECT_THROW(
        { THROW_STACKED_EXCEPTION_CUSTOM_MSG2("Foo %s\n", "bar"); },
        std::logic_error);
}