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// Boost.Range library
//
// Copyright Neil Groves 2014. Use, modification and
// distribution is 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#include <boost/range/adaptor/formatted.hpp>
#include <boost/cstdint.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <iostream>
#include <string>
#include <sstream>
#include <vector>
namespace boost_range_test
{
namespace
{
template<typename T>
std::string make_string(T x)
{
std::ostringstream result;
result << x;
return result.str();
}
template<typename T1, typename T2>
std::string make_string(T1 x, T2 y)
{
std::ostringstream result;
result << x << y;
return result.str();
}
std::string reference_result(const std::vector<boost::int32_t>& v,
const std::string& separator,
const std::string& prefix,
const std::string& postfix)
{
std::ostringstream out;
out << prefix;
if (!v.empty())
{
out << v.at(0);
std::vector<boost::int32_t>::const_iterator it = v.begin();
for (++it; it != v.end(); ++it)
{
out << separator << *it;
}
}
out << postfix;
return out.str();
}
void test_formatted_0args_impl(const std::vector<boost::int32_t>& v)
{
std::ostringstream out1;
out1 << '[' << (v | boost::adaptors::formatted()) << ']';
BOOST_CHECK_EQUAL(out1.str(), reference_result(v, ",", "[{", "}]"));
std::ostringstream out2;
out2 << '[' << boost::adaptors::format(v) << ']';
BOOST_CHECK_EQUAL(out2.str(), reference_result(v, ",", "[{", "}]"));
std::ostringstream out3;
out3 << (v | boost::adaptors::formatted());
BOOST_CHECK_EQUAL(out3.str(), reference_result(v, ",", "{", "}"));
std::ostringstream out4;
out4 << boost::adaptors::format(v);
BOOST_CHECK_EQUAL(out4.str(), reference_result(v, ",", "{", "}"));
}
template<typename Sep>
void test_formatted_1arg_impl(
const std::vector<boost::int32_t>& v,
const Sep& sep)
{
const std::string ref_sep = make_string(sep);
std::ostringstream out1;
out1 << '[' << (v | boost::adaptors::formatted(sep)) << ']';
BOOST_CHECK_EQUAL(out1.str(), reference_result(v, ref_sep, "[{", "}]"));
std::ostringstream out2;
out2 << '[' << boost::adaptors::format(v, sep) << ']';
BOOST_CHECK_EQUAL(out2.str(), reference_result(v, ref_sep, "[{", "}]"));
std::ostringstream out3;
out3 << (v | boost::adaptors::formatted(sep));
BOOST_CHECK_EQUAL(out3.str(), reference_result(v, ref_sep, "{", "}"));
std::ostringstream out4;
out4 << boost::adaptors::format(v, sep);
BOOST_CHECK_EQUAL(out4.str(), reference_result(v, ref_sep, "{", "}"));
}
void test_formatted_1arg_impl(const std::vector<boost::int32_t>& v)
{
test_formatted_1arg_impl(v, ',');
test_formatted_1arg_impl(v, ' ');
test_formatted_1arg_impl<const char[3]>(v, ":?");
}
template<typename Sep, typename Prefix>
void test_formatted_2args_impl(
const std::vector<boost::int32_t>& v,
const Sep& sep,
const Prefix& prefix
)
{
const std::string ref_sep = make_string(sep);
std::ostringstream out1;
out1 << '[' << (v | boost::adaptors::formatted(sep, prefix)) << ']';
BOOST_CHECK_EQUAL(
out1.str(),
reference_result(v, ref_sep, make_string('[', prefix), "}]"));
std::ostringstream out2;
out2 << '[' << boost::adaptors::format(v, sep, prefix) << ']';
BOOST_CHECK_EQUAL(
out2.str(),
reference_result(v, ref_sep, make_string('[', prefix), "}]"));
std::ostringstream out3;
out3 << (v | boost::adaptors::formatted(sep, prefix));
BOOST_CHECK_EQUAL(
out3.str(),
reference_result(v, ref_sep, make_string(prefix), "}"));
std::ostringstream out4;
out4 << boost::adaptors::format(v, sep, prefix);
BOOST_CHECK_EQUAL(
out4.str(),
reference_result(v, ref_sep, make_string(prefix), "}"));
}
void test_formatted_2args_impl(const std::vector<boost::int32_t>& v)
{
test_formatted_2args_impl(v, ',', '{');
test_formatted_2args_impl(v, ':', '(');
test_formatted_2args_impl<char, const char[3]>(v, ',', "{!");
test_formatted_2args_impl<const char[3], char>(v, "#$", '{');
test_formatted_2args_impl<const char[3], const char[3]>(v, "#$", "{!");
}
template<typename Sep, typename Prefix, typename Postfix>
void test_formatted_3args_impl(
const std::vector<boost::int32_t>& v,
const Sep& sep,
const Prefix& prefix,
const Postfix& postfix
)
{
const std::string ref_sep = make_string(sep);
std::ostringstream out1;
out1 << '[' << (v | boost::adaptors::formatted(sep, prefix, postfix))
<< ']';
BOOST_CHECK_EQUAL(
out1.str(),
reference_result(v, ref_sep, make_string('[', prefix),
make_string(postfix, ']')));
}
void test_formatted_3args_impl(const std::vector<boost::int32_t>& v)
{
test_formatted_3args_impl(v, ',', '{', '}');
test_formatted_3args_impl(v, ':', '(', ')');
test_formatted_3args_impl<char, char, const char[3]>(v, ',', '{', "!}");
test_formatted_3args_impl<char, const char[3], char>(v, ',', "{!", '}');
test_formatted_3args_impl<const char[3], char, char>(v, "#$", '{', '}');
test_formatted_3args_impl<
const char[3], const char[3], const char[3]
>(v, "#$", "{!", "!}");
}
void test_formatted_impl(const std::vector<boost::int32_t>& v)
{
test_formatted_0args_impl(v);
test_formatted_1arg_impl(v);
test_formatted_2args_impl(v);
test_formatted_3args_impl(v);
}
void test_formatted1()
{
std::vector<boost::int32_t> v;
for (boost::int32_t i = 0; i < 10; ++i)
v.push_back(i);
test_formatted_impl(v);
}
void test_formatted2()
{
std::vector<boost::int32_t> v;
v.push_back(3);
test_formatted_impl(v);
}
void test_formatted3()
{
std::vector<boost::int32_t> v;
test_formatted_impl(v);
}
void test_formatted4()
{
std::vector<boost::int32_t> v;
for (boost::int32_t i = 0; i < 5; ++i)
v.push_back(i);
test_formatted_impl(v);
}
struct udt_separator
{
};
template<typename Char, typename Traits>
inline std::basic_ostream<Char,Traits>&
operator<<(std::basic_ostream<Char,Traits>& out, udt_separator)
{
return out << "[sep]";
}
void test_formatted5()
{
std::vector<boost::int32_t> v;
for (boost::int32_t i = 0; i < 5; ++i)
v.push_back(i);
std::ostringstream out1;
out1 << (v | boost::adaptors::formatted(udt_separator()));
BOOST_CHECK_EQUAL(out1.str(), "{0[sep]1[sep]2[sep]3[sep]4}");
std::ostringstream out2;
out2 << boost::adaptors::format(v, udt_separator());
BOOST_CHECK_EQUAL(out2.str(), "{0[sep]1[sep]2[sep]3[sep]4}");
}
// This test is already covered by the more complex code above. This
// code duplicates coverage to ensure that char literal arrays are handled
// correctly. I was particularly concerned that my test code above may pass
// erroneously by decaying a char literal to a pointer. This function makes
// it very plain that character literal strings work.
void test_formatted_empty()
{
std::vector<boost::int32_t> v;
std::ostringstream out1;
out1 << (v | boost::adaptors::formatted());
BOOST_CHECK_EQUAL(out1.str(), "{}");
std::ostringstream out2;
out2 << boost::adaptors::format(v);
BOOST_CHECK_EQUAL(out2.str(), "{}");
std::ostringstream out3;
out3 << (v | boost::adaptors::formatted(','));
BOOST_CHECK_EQUAL(out3.str(), "{}");
std::ostringstream out4;
out4 << boost::adaptors::format(v, ',');
BOOST_CHECK_EQUAL(out4.str(), "{}");
std::ostringstream out5;
out5 << (v | boost::adaptors::formatted("#$"));
BOOST_CHECK_EQUAL(out5.str(), "{}");
std::ostringstream out6;
out6 << boost::adaptors::format(v, "#$");
BOOST_CHECK_EQUAL(out6.str(), "{}");
std::ostringstream out7;
out7 << (v | boost::adaptors::formatted("", "12", "34"));
BOOST_CHECK_EQUAL(out7.str(), "1234");
std::ostringstream out8;
out8 << boost::adaptors::format(v, "", "12", "34");
BOOST_CHECK_EQUAL(out8.str(), "1234");
}
} // anonymous namespace
} // namespace boost_range_test
boost::unit_test::test_suite* init_unit_test_suite(int, char*[] )
{
boost::unit_test::test_suite* test =
BOOST_TEST_SUITE( "Boost.Range formatted test suite" );
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted1));
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted2));
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted3));
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted4));
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted5));
test->add(BOOST_TEST_CASE(&boost_range_test::test_formatted_empty));
return test;
}
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