Function TEST_F

library/cpp/testing/common/ut/network_ut.cpp:34–59

class FreePortTest: public NetworkTestBase {};

TEST_F(NetworkTest, FreePort) {
    NTesting::TScopedEnvironment envGuard("PORT_SYNC_PATH", TmpDir->Name());
    NTesting::InitPortManagerFromEnv();
    TVector<NTesting::TPortHolder> ports(Reserve(100));

    for (size_t i = 0; i < 100; ++i) {
        ports.push_back(NTesting::GetFreePort());
    }

    THashSet<ui16> uniqPorts;
    for (auto& port : ports) {
        const TString guardPath = TmpDir->Path() / ToString(static_cast<ui16>(port));
        EXPECT_TRUE(NFs::Exists(guardPath));
        EXPECT_TRUE(uniqPorts.emplace(port).second);

        TInetStreamSocket sock;
        TSockAddrInet addr(TIpHost{INADDR_ANY}, port);
        ASSERT_EQ(0, SetSockOpt(sock, SOL_SOCKET, SO_REUSEADDR, 1));
        EXPECT_EQ(0, sock.Bind(&addr));
    }
    ports.clear();
    for (ui16 port : uniqPorts) {
        const TString guardPath = TmpDir->Path() / ToString(port);
        EXPECT_FALSE(NFs::Exists(guardPath));
    }
}

TEST_F(NetworkTest, FreePortWithinRanges) {
    NTesting::TScopedEnvironment envGuard{{