public void PqsqlConnectionTest4()
{
PqsqlConnection connection = new PqsqlConnection(connectionString);
connection.Open();
Assert.AreEqual(ConnectionState.Open, connection.State, "wrong connection state");
IntPtr conn_attempt1 = connection.PGConnection;
int sock1 = PqsqlWrapper.PQsocket(conn_attempt1);
Assert.AreNotEqual(-1, sock1, "wrong socket");
// close the underlying socket without letting Pqsql and libpq know
int closed = CloseSocket(sock1);
Assert.AreEqual(0, closed, "closesocket failed");
connection.Close();
Assert.AreEqual(ConnectionState.Closed, connection.State, "wrong connection state");
connection.Open();
IntPtr conn_attempt2 = connection.PGConnection;
ConnStatusType status = PqsqlWrapper.PQstatus(conn_attempt2);
Assert.AreEqual(ConnStatusType.CONNECTION_OK, status, "connection broken");
Assert.AreEqual(ConnectionState.Open, connection.State, "wrong connection state");
int sock2 = PqsqlWrapper.PQsocket(conn_attempt2);
// close the underlying socket without letting Pqsql and libpq know
closed = CloseSocket(sock2);
Assert.AreEqual(0, closed, "closesocket failed");
}