import postgresql::native_postgres
var db_suffix = "NIT_TESTING_ID".environ
-var db = new NativePostgres.connectdb("dbname=postgres")
+var db = new NativePostgres.connectdb("host=postgres user=postgres dbname=postgres")
assert postgres_open: db.status.is_ok else print_error db.error
var result = db.exec("CREATE TABLE IF NOT EXISTS animals_{db_suffix} (aname TEXT PRIMARY KEY, class TEXT NOT NULL, sex INTEGER)")
assert postgres_ntuples: result.ntuples == 2 else print_error db.error
assert postgres_nfields: result.nfields == 3 else print_error db.error
assert postgres_fname: result.fname(0) == "aname" else print_error db.error
-assert postgres_isnull: result.is_null(0,0) == false else print_error db.error
+assert postgres_isnull: not result.is_null(0,0) else print_error db.error
assert postgres_value: result.value(0,0) == "Whale" else print_error db.error
var cols: Int = result.nfields