69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// display_expr.cpp
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//
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// Copyright 2010 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <sstream>
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#include <boost/proto/proto.hpp>
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#include <boost/test/unit_test.hpp>
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namespace mpl = boost::mpl;
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namespace proto = boost::proto;
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using proto::_;
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struct A {};
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struct B : A {};
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std::ostream& operator<<( std::ostream& out, const A& ) { return out << "this is A!"; }
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struct C {};
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void test_display_expr()
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{
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// https://svn.boost.org/trac/boost/ticket/4910
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proto::terminal<int>::type i = {0};
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{
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std::stringstream sout;
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proto::display_expr(i + A(), sout);
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BOOST_CHECK_EQUAL(sout.str(), std::string(
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"plus(\n"
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" terminal(0)\n"
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" , terminal(this is A!)\n"
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")\n"));
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}
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{
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std::stringstream sout;
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proto::display_expr(i + B(), sout);
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BOOST_CHECK_EQUAL(sout.str(), std::string(
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"plus(\n"
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" terminal(0)\n"
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" , terminal(this is A!)\n"
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")\n"));
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}
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{
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std::stringstream sout;
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char const * Cname = BOOST_CORE_TYPEID(C).name();
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proto::display_expr(i + C(), sout);
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BOOST_CHECK_EQUAL(sout.str(), std::string(
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"plus(\n"
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" terminal(0)\n"
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" , terminal(") + Cname + std::string(")\n"
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")\n"));
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}
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}
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using namespace boost::unit_test;
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///////////////////////////////////////////////////////////////////////////////
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// init_unit_test_suite
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//
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test_suite* init_unit_test_suite( int argc, char* argv[] )
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{
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test_suite *test = BOOST_TEST_SUITE("test display_expr() function");
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test->add(BOOST_TEST_CASE(&test_display_expr));
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return test;
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}
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