test_tools_test.cpp

boost库提供标准的C++ API 配合dev c++使用,功能更加强大

//  (C) Copyright Gennadiy Rozental 2001-2003.
//  Use, modification, and distribution are subject to the 
//  Boost Software License, Version 1.0. (See accompanying file 
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org/libs/test for the library home page.
//
//  File        : $RCSfile: test_tools_test.cpp,v $
//
//  Version     : $Revision: 1.28 $
//
//  Description : tests all Test Tools but output_test_stream
// ***************************************************************************

// Boost.Test
#include <boost/test/unit_test.hpp>
#include <boost/test/unit_test_result.hpp>
using namespace boost::unit_test_framework;
using boost::test_toolbox::extended_predicate_value;

// BOOST
#include <boost/bind.hpp>

// STL
#include <iostream>
#include <iomanip>
#include <list>
#include <typeinfo>
#include <cassert>

//____________________________________________________________________________//

#define CHECK_TOOL_USAGE( tool_usage, check )               \
{                                                           \
    boost::test_toolbox::output_test_stream output;         \
                                                            \
    unit_test_log::instance().set_log_stream( output );     \
    { unit_test_result_saver saver;                         \
      tool_usage;                                           \
    }                                                       \
    unit_test_log::instance().set_log_stream( std::cout );  \
    BOOST_CHECK( check );                                   \
}

//____________________________________________________________________________//

#define CHECK_CRITICAL_TOOL_USAGE( tool_usage, nothrow_check, throw_check ) \
{                                                                           \
    boost::test_toolbox::output_test_stream output;                         \
                                                                            \
    unit_test_log::instance().set_log_stream( output );                     \
    try {                                                                   \
        {   unit_test_result_saver saver;                                   \
            tool_usage;                                                     \
        }                                                                   \
        unit_test_log::instance().set_log_stream( std::cout );              \
        BOOST_CHECK( nothrow_check );                                       \
    } catch( boost::test_toolbox::detail::test_tool_failed const&) {        \
        unit_test_log::instance().set_log_stream( std::cout );              \
        BOOST_CHECK( throw_check );                                         \
    }                                                                       \
}

//____________________________________________________________________________//

char
set_unix_slash( char in )
{
    return in == '\\' ? '/' : in;
}

static std::string const&
normalize_file_name( char const* f )
{
    static std::string buffer;

    buffer = f;

    std::transform( buffer.begin(), buffer.end(), buffer.begin(), &set_unix_slash );

    return buffer;
}

#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570)) || BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(600))

#define CHECK_PATTERN( msg, shift ) \
    (boost::wrap_stringstream().ref() << normalize_file_name( __FILE__ ) << "(" << (__LINE__-shift) << "): " << msg).str()

#else

#define CHECK_PATTERN( msg, shift ) \
    (boost::wrap_stringstream().ref() << normalize_file_name( __FILE__ ) << "(" << __LINE__ << "): " << msg).str()

#endif
//____________________________________________________________________________//

class bool_convertible
{
    struct Tester {};
public:
    operator Tester*() { return static_cast<Tester*>( 0 ) + 1; }
};

void
test_BOOST_CHECK()
{
#define TEST_CASE_NAME << '\"' << "test_BOOST_CHECK" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_all_errors );

    CHECK_TOOL_USAGE(
        BOOST_CHECK( true ),
        output.is_empty()
    );

    bool_convertible bc;

    CHECK_TOOL_USAGE(
        BOOST_CHECK( bc ),
        output.is_empty()
    );

    CHECK_TOOL_USAGE(
        BOOST_CHECK( false ),
        output.is_equal( CHECK_PATTERN( "error in " TEST_CASE_NAME ": test false failed\n", 2 ) )
    );

    CHECK_TOOL_USAGE(
        BOOST_CHECK( 1==2 ),
        output.is_equal( CHECK_PATTERN( "error in " TEST_CASE_NAME ": test 1==2 failed\n", 2 ) )
    );

    int i=2;

    CHECK_TOOL_USAGE(
        BOOST_CHECK( i==1 ),
        output.is_equal( CHECK_PATTERN( "error in " TEST_CASE_NAME ": test i==1 failed\n", 2 ) )
    );

    unit_test_log::instance().set_log_threshold_level( log_successful_tests );
    CHECK_TOOL_USAGE(
        BOOST_CHECK( i==2 ),
        output.is_equal( CHECK_PATTERN( "info: test i==2 passed\n", 2 ) )
    );
    unit_test_log::instance().set_log_threshold_level( log_all_errors );
}

//____________________________________________________________________________//

void
test_BOOST_REQUIRE()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_REQUIRE" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_all_errors );

    CHECK_CRITICAL_TOOL_USAGE(
        BOOST_REQUIRE( true ),
        true, false
    );

    CHECK_CRITICAL_TOOL_USAGE(
        BOOST_REQUIRE( false ),
        false, true
    );

    int j = 3;

    CHECK_CRITICAL_TOOL_USAGE(
        BOOST_REQUIRE( j > 5 ),
        false, output.is_equal( CHECK_PATTERN( "fatal error in " TEST_CASE_NAME ": test j > 5 failed\n", 2 ) )
    );

    unit_test_log::instance().set_log_threshold_level( log_successful_tests );
    CHECK_CRITICAL_TOOL_USAGE(
        BOOST_REQUIRE( j < 5 ),
        output.is_equal( CHECK_PATTERN( "info: test j < 5 passed\n", 1 ) ) , false
    );
    unit_test_log::instance().set_log_threshold_level( log_all_errors );
}

//____________________________________________________________________________//

struct A {
    friend std::ostream& operator<<( std::ostream& str, A const& a ) { str << "struct A"; return str;}
};

void
test_BOOST_MESSAGE()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_REQUIRE" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_messages );

    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( "still testing" ),
        output.is_equal( "still testing\n" )
    );

    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( "1+1=" << 2 ),
        output.is_equal( "1+1=2\n" )
    );

    int i = 2;
    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( i << "+" << i << "=" << (i+i) ),
        output.is_equal( "2+2=4\n" )
    );

    A a = A();
    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( a ),
        output.is_equal( "struct A\n" )
    );

#ifndef BOOST_NO_STD_LOCALE

    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( std::hex << std::showbase << 20 ),
        output.is_equal( "0x14\n" )
    );

#else

    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( std::hex << "0x" << 20 ),
        output.is_equal( "0x14\n" )
    );

#endif

    CHECK_TOOL_USAGE(
        BOOST_MESSAGE( std::setw( 4 ) << 20 ),
        output.is_equal( "  20\n" )
        );
}

//____________________________________________________________________________//

void
test_BOOST_WARN()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_WARN" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_warnings );

    CHECK_TOOL_USAGE(
        BOOST_WARN( sizeof(int) == sizeof(short) ),
        output.is_equal( CHECK_PATTERN( "warning in " TEST_CASE_NAME
                                        ": condition sizeof(int) == sizeof(short) is not satisfied\n", 3 ) )
    );
}

//____________________________________________________________________________//

class bad_func_container : public test_case
{
public:
    bad_func_container() : test_case( "test_BOOST_CHECKPOINT", true, 1 ) {}
    void do_run() {
        throw "some error";
    }
} bad;

void
test_BOOST_CHECKPOINT()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_CHECKPOINT" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_all_errors );

    BOOST_CHECKPOINT( "Going to do a silly things" );

    CHECK_TOOL_USAGE(
        bad.run(),
        output.is_equal(
            (boost::wrap_stringstream().ref()
                << "Exception in " TEST_CASE_NAME ": C string: some error\n"
                << normalize_file_name( __FILE__ ) << "(" << 277 << "): "
                << "last checkpoint: Going to do a silly things\n").str()
        )
    );
}

//____________________________________________________________________________//

void
test_BOOST_WARN_MESSAGE()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_WARN_MESSAGE" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_warnings );

    CHECK_TOOL_USAGE(
        BOOST_WARN_MESSAGE( sizeof(int) == sizeof(short), "memory won't be used efficiently" ),
        output.is_equal( CHECK_PATTERN( "warning in " TEST_CASE_NAME ": memory won't be used efficiently\n", 2 ) )
    );

    int obj_size = 33;

    CHECK_TOOL_USAGE(
        BOOST_WARN_MESSAGE( obj_size <= 8, "object size " << obj_size << " too big to be efficiently passed by value" ),
        output.is_equal( CHECK_PATTERN( "warning in " TEST_CASE_NAME
                                        ": object size 33 too big to be efficiently passed by value\n", 3 ) )
    );

}

//____________________________________________________________________________//

void
test_BOOST_CHECK_MESSAGE()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_CHECK_MESSAGE" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_all_errors );


    CHECK_TOOL_USAGE(
        BOOST_CHECK_MESSAGE( 2+2 == 5, "Well, may be that what I belive in" ),
        output.is_equal( CHECK_PATTERN( "error in " TEST_CASE_NAME ": Well, may be that what I belive in\n", 2 ) )
    );

}

//____________________________________________________________________________//

void
test_BOOST_REQUIRE_MESSAGE()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_REQUIRE_MESSAGE" << '\"' <<

    unit_test_log::instance().set_log_threshold_level( log_all_errors );

    CHECK_CRITICAL_TOOL_USAGE(
        BOOST_REQUIRE_MESSAGE( false, "Here we should stop" ),
        false, output.is_equal(
            CHECK_PATTERN( "fatal error in " TEST_CASE_NAME ": Here we should stop" << "\n", 3 ) )
    );
}

//____________________________________________________________________________//

struct B {
    B( int i ) : m_i( i ) {}

    friend bool operator==( B const& b1, B const& b2 ) { return b1.m_i == b2.m_i; }
    friend std::ostream& operator<<( std::ostream& str, B const& b ) { str << "B(" << b.m_i << ")"; return str; }

    int m_i;
};

void
test_BOOST_CHECK_EQUAL()
{
#undef  TEST_CASE_NAME
#define TEST_CASE_NAME << '\"' << "test_BOOST_CHECK_EQUAL" << '\"' <<