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119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
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// Test constructor body throwing (in middle branch of inheritance tree).
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#include "../aux_/oteststream.hpp"
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#include <boost/contract/constructor.hpp>
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#include <boost/contract/base_types.hpp>
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#include <boost/contract/guard.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <sstream>
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boost::contract::aux::test::oteststream out;
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struct c
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#define BASES private boost::contract::constructor_precondition<c>
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: BASES
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{
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typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
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#undef BASES
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void invariant() const { out << "c::inv" << std::endl; }
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static void static_invariant() { out << "c::static_inv" << std::endl; }
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c() :
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boost::contract::constructor_precondition<c>([&] {
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out << "c::ctor::pre" << std::endl;
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})
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{
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boost::contract::guard c = boost::contract::constructor(this)
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.old([&] { out << "c::ctor::old" << std::endl; })
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.postcondition([&] { out << "c::ctor::post" << std::endl; })
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;
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out << "c::ctor::body" << std::endl;
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// Do not throw (from inheritance root).
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}
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};
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struct b
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#define BASES private boost::contract::constructor_precondition<b>, public c
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: BASES
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{
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typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
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#undef BASES
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void invariant() const { out << "b::inv" << std::endl; }
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static void static_invariant() { out << "b::static_inv" << std::endl; }
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struct e {};
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b() :
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boost::contract::constructor_precondition<b>([] {
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out << "b::ctor::pre" << std::endl;
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})
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{
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boost::contract::guard c = boost::contract::constructor(this)
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.old([&] { out << "b::ctor::old" << std::endl; })
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.postcondition([&] { out << "b::ctor::post" << std::endl; })
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;
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out << "b::ctor::body" << std::endl;
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throw b::e(); // Test body throw (from inheritance mid branch).
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}
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};
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struct a
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#define BASES private boost::contract::constructor_precondition<a>, public b
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: BASES
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{
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typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
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#undef BASES
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void invariant() const { out << "a::inv" << std::endl; }
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static void static_invariant() { out << "a::static_inv" << std::endl; }
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a() :
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boost::contract::constructor_precondition<a>([&] {
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out << "a::ctor::pre" << std::endl;
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})
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{
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boost::contract::guard c = boost::contract::constructor(this)
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.old([&] { out << "a::ctor::old" << std::endl; })
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.postcondition([&] { out << "a::ctor::post" << std::endl; })
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;
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out << "a::ctor::body" << std::endl;
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// Do not throw (from inheritance leaf).
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}
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};
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int main() {
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std::ostringstream ok;
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bool threw = false;
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out.str("");
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try { a aa; }
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catch(b::e const&) { threw = true; }
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BOOST_TEST(threw);
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ok.str(""); ok
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<< "a::ctor::pre" << std::endl
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<< "b::ctor::pre" << std::endl
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<< "c::ctor::pre" << std::endl
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<< "c::static_inv" << std::endl
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<< "c::ctor::old" << std::endl
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<< "c::ctor::body" << std::endl
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<< "c::static_inv" << std::endl
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<< "c::inv" << std::endl
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<< "c::ctor::post" << std::endl
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<< "b::static_inv" << std::endl
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<< "b::ctor::old" << std::endl
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<< "b::ctor::body" << std::endl
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// Test b body threw so only static inv exit checked and then C++
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// construction mechanism quits.
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<< "b::static_inv" << std::endl
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;
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BOOST_TEST(out.eq(ok.str()));
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return boost::report_errors();
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}
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