123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184 |
- /*
- * Copyright Andrey Semashev 2013.
- * 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 string_ref_test_io.cpp
- * \author Andrey Semashev
- * \date 26.05.2013
- *
- * \brief This header contains tests for stream operations of \c basic_string_ref.
- */
- #include <boost/utility/string_view.hpp>
- #include <iomanip>
- #include <sstream>
- #include <algorithm>
- #include <iterator>
- #include <string>
- #include <boost/config.hpp>
- #include <boost/core/lightweight_test.hpp>
- /* Current implementations seem to be missing codecvt facets to convert chars to char16_t and char32_t even though the types are available.
- */
- static const char* test_strings[] =
- {
- "begin",
- "abcd",
- "end"
- };
- //! The context with test data for particular character type
- template< typename CharT >
- struct context
- {
- typedef CharT char_type;
- typedef std::basic_string< char_type > string_type;
- typedef std::basic_ostringstream< char_type > ostream_type;
- string_type begin, abcd, end;
- context()
- {
- boost::string_view str = test_strings[0];
- std::copy(str.begin(), str.end(), std::back_inserter(begin));
- str = test_strings[1];
- std::copy(str.begin(), str.end(), std::back_inserter(abcd));
- str = test_strings[2];
- std::copy(str.begin(), str.end(), std::back_inserter(end));
- }
- };
- // Test regular output
- template<class CharT>
- void test_string_view_output()
- {
- typedef CharT char_type;
- typedef std::basic_ostringstream< char_type > ostream_type;
- typedef boost::basic_string_view< char_type > string_view_type;
- context< char_type > ctx;
- ostream_type strm;
- strm << string_view_type(ctx.abcd);
- BOOST_TEST(strm.str() == ctx.abcd);
- }
- // Test support for padding
- template<class CharT>
- void test_padding()
- {
- typedef CharT char_type;
- typedef std::basic_ostringstream< char_type > ostream_type;
- typedef boost::basic_string_view< char_type > string_view_type;
- context< char_type > ctx;
- // Test for padding
- {
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::setw(8) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::setw(8) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- // Test for long padding
- {
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::setw(100) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::setw(100) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- // Test that short width does not truncate the string
- {
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::setw(1) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::setw(1) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- }
- // Test support for padding fill
- template<class CharT>
- void test_padding_fill()
- {
- typedef CharT char_type;
- typedef std::basic_ostringstream< char_type > ostream_type;
- typedef boost::basic_string_view< char_type > string_view_type;
- context< char_type > ctx;
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::setfill(static_cast< char_type >('x')) << std::setw(8) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::setfill(static_cast< char_type >('x')) << std::setw(8) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- // Test support for alignment
- template<class CharT>
- void test_alignment()
- {
- typedef CharT char_type;
- typedef std::basic_ostringstream< char_type > ostream_type;
- typedef boost::basic_string_view< char_type > string_view_type;
- context< char_type > ctx;
- // Left alignment
- {
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::left << std::setw(8) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::left << std::setw(8) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- // Right alignment
- {
- ostream_type strm_ref;
- strm_ref << ctx.begin << std::right << std::setw(8) << string_view_type(ctx.abcd) << ctx.end;
- ostream_type strm_correct;
- strm_correct << ctx.begin << std::right << std::setw(8) << ctx.abcd << ctx.end;
- BOOST_TEST(strm_ref.str() == strm_correct.str());
- }
- }
- template<class CharT>
- void test()
- {
- test_string_view_output<CharT>();
- test_padding<CharT>();
- test_padding_fill<CharT>();
- test_alignment<CharT>();
- }
- int main()
- {
- test<char>();
- test<wchar_t>();
- return boost::report_errors();
- }
|