assertNotNull( cols );
assertEquals( 2, cols.length );
assertEquals( "col1", cols[0] );
assertEquals( "col2", cols[1] );
MarshallableColumnTypes colTypes = result.getColumnTypes();
assertNotNull( colTypes );
String[] types = colTypes.getColumnType();
assertNotNull( types );
assertEquals( 2, types.length );
assertEquals( "string", types[0] );
assertEquals( "integer", types[1] );