contract/test/destructor/decl_entry_inv_ends.cpp
2017-12-10 16:31:15 -08:00

207 lines
6.0 KiB
C++

// Copyright (C) 2008-2018 Lorenzo Caminiti
// Distributed under the Boost Software License, Version 1.0 (see accompanying
// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
// Test only derived and grandparent classes (ends) with entry invariants.
#undef BOOST_CONTRACT_TEST_NO_A_INV
#define BOOST_CONTRACT_TEST_NO_B_INV
#undef BOOST_CONTRACT_TEST_NO_C_INV
#include "decl.hpp"
#include <boost/detail/lightweight_test.hpp>
#include <sstream>
#include <string>
std::string ok_a(bool failed = false) {
std::ostringstream ok; ok << "" // Suppress a warning.
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "a::static_inv" << std::endl
<< "a::inv" << std::endl // This can fail.
#endif
;
if(!failed) ok
#ifndef BOOST_CONTRACT_NO_OLDS
<< "a::dtor::old" << std::endl
#endif
<< "a::dtor::body" << std::endl
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
<< "a::static_inv" << std::endl
#endif
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
<< "a::dtor::post" << std::endl
#endif
;
return ok.str();
}
std::string ok_b(bool threw = false) {
std::ostringstream ok; ok << "" // Suppress a warning.
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "b::static_inv" << std::endl
#endif
#ifndef BOOST_CONTRACT_NO_OLDS
<< "b::dtor::old" << std::endl
#endif
<< "b::dtor::body" << std::endl
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
<< "b::static_inv" << std::endl
// No b::inv here (not even when threw).
#endif
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
<< (!threw ? "b::dtor::post\n" : "")
#endif
;
return ok.str();
}
enum checked { passed, failed, threw };
std::string ok_c(checked check = passed) {
std::ostringstream ok; ok << "" // Suppress a warning.
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "c::static_inv" << std::endl
<< "c::inv" << std::endl // This can fail.
#endif
;
if(check != failed) ok
#ifndef BOOST_CONTRACT_NO_OLDS
<< "c::dtor::old" << std::endl
#endif
<< "c::dtor::body" << std::endl
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
<< "c::static_inv" << std::endl
<< (check == threw ? "c::inv\n" : "")
#endif
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
<< (check == passed ? "c::dtor::post\n" : "")
#endif
;
return ok.str();
}
struct err {}; // Global decl so visible in MSVC10 lambdas.
int main() {
std::ostringstream ok;
a_entry_inv = true;
b_entry_inv = true;
c_entry_inv = true;
{
a aa;
out.str("");
}
ok.str(""); ok // Test nothing failed.
<< ok_a()
<< ok_b()
<< ok_c()
;
BOOST_TEST(out.eq(ok.str()));
boost::contract::set_entry_invariant_failure([&ok] (boost::contract::from) {
BOOST_TEST(out.eq(ok.str())); // Must check before dtor throws...
throw err(); // for testing (as dtors should never throw anyways).
});
#ifdef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
#define BOOST_CONTRACT_TEST_entry_inv 0
#else
#define BOOST_CONTRACT_TEST_entry_inv 1
#endif
a_entry_inv = false;
b_entry_inv = true;
c_entry_inv = true;
try {
{
a aa;
ok.str(""); ok
// Test entry a::inv failed...
<< ok_a(BOOST_CONTRACT_TEST_entry_inv)
;
out.str("");
}
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
BOOST_TEST(false);
} catch(err const&) {
#endif
ok // ...then exec other dtors and check inv on throw (as dtor threw).
<< ok_b(BOOST_CONTRACT_TEST_entry_inv)
<< ok_c(BOOST_CONTRACT_TEST_entry_inv ? threw : passed)
;
BOOST_TEST(out.eq(ok.str()));
} catch(...) { BOOST_TEST(false); }
a_entry_inv = true;
b_entry_inv = false;
c_entry_inv = true;
{
a aa;
out.str("");
}
ok.str(""); ok
<< ok_a()
<< ok_b() // Test no entry b::inv so no failure here.
<< ok_c()
;
BOOST_TEST(out.eq(ok.str()));
a_entry_inv = true;
b_entry_inv = true;
c_entry_inv = false;
try {
{
a aa;
ok.str(""); ok
<< ok_a()
<< ok_b()
// Test entry c::inv failed...
<< ok_c(BOOST_CONTRACT_TEST_entry_inv ? failed : passed)
;
out.str("");
}
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
BOOST_TEST(false);
} catch(err const&) {
#endif
// ...then exec other dtors and check inv on throw (as dtor threw).
BOOST_TEST(out.eq(ok.str()));
} catch(...) { BOOST_TEST(false); }
boost::contract::set_entry_invariant_failure([] (boost::contract::from) {
// Testing multiple failures so dtors must not throw multiple
// exceptions, just ignore failure and continue test program...
});
a_entry_inv = false;
b_entry_inv = false;
c_entry_inv = false;
{
a aa;
out.str("");
}
ok.str(""); ok
// Test entry a::inv failed (as all did).
<< ok_a(BOOST_CONTRACT_TEST_entry_inv)
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "a::dtor::body" << std::endl
#endif
<< ok_b() // Test no entry b::inv so no failure here.
// Test entry c::inv failed (as all did).
<< ok_c(BOOST_CONTRACT_TEST_entry_inv ? failed : passed)
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "c::dtor::body" << std::endl
#endif
;
BOOST_TEST(out.eq(ok.str()));
#undef BOOST_CONTRACT_TEST_entry_inv
return boost::report_errors();
}