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#include <library/cpp/testing/unittest/registar.h>
 
#include "network.h" 
 
#include <library/cpp/messagebus/test/helper/fixed_port.h>

using namespace NBus; 
using namespace NBus::NPrivate; 
using namespace NBus::NTest; 
 
namespace { 
    int GetSockPort(SOCKET socket) { 
        sockaddr_storage addr; 
        Zero(addr); 
 
        socklen_t len = sizeof(addr); 
 
        int r = ::getsockname(socket, (sockaddr*)&addr, &len);
        UNIT_ASSERT(r >= 0); 
 
        if (addr.ss_family == AF_INET) { 
            sockaddr_in* addr_in = (sockaddr_in*)&addr;
            return InetToHost(addr_in->sin_port); 
        } else if (addr.ss_family == AF_INET6) { 
            sockaddr_in6* addr_in6 = (sockaddr_in6*)&addr;
            return InetToHost(addr_in6->sin6_port); 
        } else { 
            UNIT_FAIL("unknown AF"); 
            throw 1; 
        } 
    } 
} 
 
Y_UNIT_TEST_SUITE(Network) {
    Y_UNIT_TEST(BindOnPortConcrete) {
        if (!IsFixedPortTestAllowed()) { 
            return; 
        } 
 
        TVector<TBindResult> r = BindOnPort(FixedPort, false).second;
        UNIT_ASSERT_VALUES_EQUAL(size_t(2), r.size()); 
 
        for (TVector<TBindResult>::iterator i = r.begin(); i != r.end(); ++i) {
            UNIT_ASSERT_VALUES_EQUAL(i->Addr.GetPort(), GetSockPort(i->Socket->operator SOCKET())); 
        } 
    } 
 
    Y_UNIT_TEST(BindOnPortRandom) {
        TVector<TBindResult> r = BindOnPort(0, false).second;
        UNIT_ASSERT_VALUES_EQUAL(size_t(2), r.size()); 
 
        for (TVector<TBindResult>::iterator i = r.begin(); i != r.end(); ++i) {
            UNIT_ASSERT_VALUES_EQUAL(i->Addr.GetPort(), GetSockPort(i->Socket->operator SOCKET())); 
            UNIT_ASSERT(i->Addr.GetPort() > 0); 
        } 
 
        UNIT_ASSERT_VALUES_EQUAL(r.at(0).Addr.GetPort(), r.at(1).Addr.GetPort()); 
    } 

    Y_UNIT_TEST(BindOnBusyPort) {
        auto r = BindOnPort(0, false);

        UNIT_ASSERT_EXCEPTION_CONTAINS(BindOnPort(r.first, false), TSystemError, "failed to bind on port " + ToString(r.first));
    }
}