Question

I’m porting database schema tests from sql/plpgsql to Java/JDBC. But here is a test case I can’t figure out how to test. As I can guess, this test tries to insert some row to a table, and expects SPECIAL_EXCEPTION to be thrown. If it’s thrown, the test passes, if other exception or no exception is thrown, the test fails. So the question: in the perspective of java.sql.Connection/Statement/ResultSet how to precisely test this?

begin;
do language plpgsql $$
declare
begin
    begin
        INSERT INTO table (
            name,
            blah...
        ) VALUES (
            'Test Player ',
            blah...
        );
    exception
        when sqlstate 'SPECIAL_EXCEPTION' then
            return;
        when others then
            raise info 'exception SPECIAL_EXCEPTION failed, invalid sqlstate';
            raise;
    end;
    raise exception 'exception SPECIAL_EXCEPTION failed, no error thrown';
end;
$$;
commit;

Answer 1

If I got you right, then what you want is:

   try {
      statement.executeUpdate();
   } catch(SQLException e) {
      if (!se.getSQLState().equals("SPECIAL_EXCEPTION") ) {
            fail();
      }
   }