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/*
* Copyright Andrey Semashev 2007 - 2015.
* Distributed under 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)
*/
/*!
* \file form_if.cpp
* \author Andrey Semashev
* \date 05.02.2009
*
* \brief This header contains tests for the \c if_ formatter.
*/
#define BOOST_TEST_MODULE form_if
#include <string>
#include <ostream>
#include <boost/test/unit_test.hpp>
#include <boost/log/attributes/constant.hpp>
#include <boost/log/attributes/attribute_set.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/core/record.hpp>
#include <boost/log/utility/formatting_ostream.hpp>
#include "char_definitions.hpp"
#include "make_record.hpp"
namespace logging = boost::log;
namespace attrs = logging::attributes;
namespace expr = logging::expressions;
// The test checks that conditional formatting work
BOOST_AUTO_TEST_CASE_TEMPLATE(conditional_formatting, CharT, char_types)
{
typedef logging::attribute_set attr_set;
typedef std::basic_string< CharT > string;
typedef logging::basic_formatting_ostream< CharT > osstream;
typedef logging::record_view record_view;
typedef logging::basic_formatter< CharT > formatter;
typedef test_data< CharT > data;
attrs::constant< int > attr1(10);
attrs::constant< double > attr2(5.5);
attr_set set1;
set1[data::attr1()] = attr1;
set1[data::attr2()] = attr2;
record_view rec = make_record_view(set1);
// Check for various modes of attribute value type specification
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream <<
expr::if_(expr::has_attr< int >(data::attr1()))
[
expr::stream << expr::attr< int >(data::attr1())
];
f(rec, strm1);
strm2 << 10;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
{
string str1;
osstream strm1(str1);
formatter f = expr::stream <<
expr::if_(expr::has_attr< int >(data::attr2()))
[
expr::stream << expr::attr< int >(data::attr2())
];
f(rec, strm1);
BOOST_CHECK(equal_strings(strm1.str(), string()));
}
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream <<
expr::if_(expr::has_attr< int >(data::attr1()))
[
expr::stream << expr::attr< int >(data::attr1())
]
.else_
[
expr::stream << expr::attr< double >(data::attr2())
];
f(rec, strm1);
strm2 << 10;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
{
string str1, str2;
osstream strm1(str1), strm2(str2);
formatter f = expr::stream <<
expr::if_(expr::has_attr< int >(data::attr2()))
[
expr::stream << expr::attr< int >(data::attr1())
]
.else_
[
expr::stream << expr::attr< double >(data::attr2())
];
f(rec, strm1);
strm2 << 5.5;
BOOST_CHECK(equal_strings(strm1.str(), strm2.str()));
}
}
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