mirror of
https://github.com/FirebirdSQL/firebird-qa.git
synced 2025-01-23 05:53:06 +01:00
90 lines
2.3 KiB
Python
90 lines
2.3 KiB
Python
#coding:utf-8
|
|
#
|
|
# id: bugs.core_4331
|
|
# title: LAG, LEAD and NTH_VALUE raise error when the second argument is NULL
|
|
# decription:
|
|
# tracker_id: CORE-4331
|
|
# min_versions: ['3.0']
|
|
# versions: 3.0
|
|
# qmid: None
|
|
|
|
import pytest
|
|
from firebird.qa import db_factory, isql_act, Action
|
|
|
|
# version: 3.0
|
|
# resources: None
|
|
|
|
substitutions_1 = []
|
|
|
|
init_script_1 = """"""
|
|
|
|
db_1 = db_factory(page_size=4096, sql_dialect=3, init=init_script_1)
|
|
|
|
test_script_1 = """
|
|
recreate table test(id int primary key, x int, y int);
|
|
commit;
|
|
insert into test values(101, 1, 10);
|
|
insert into test values(102, 2, 20);
|
|
insert into test values(103, 3, 30);
|
|
insert into test values(104, 4, 40);
|
|
insert into test values(105, 5, 50);
|
|
insert into test values(106, 6, 60);
|
|
insert into test values(107, 7, 70);
|
|
commit;
|
|
|
|
set list on;
|
|
select
|
|
id
|
|
,lag(x,null)over(order by id) x_lag
|
|
,lead(x,null)over(order by id) x_lead
|
|
,nth_value(x,null)over(order by id) x_nth
|
|
from test t
|
|
order by id;
|
|
"""
|
|
|
|
act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
|
|
|
|
expected_stdout_1 = """
|
|
ID 101
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 102
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 103
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 104
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 105
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 106
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
|
|
ID 107
|
|
X_LAG <null>
|
|
X_LEAD <null>
|
|
X_NTH <null>
|
|
"""
|
|
|
|
@pytest.mark.version('>=3.0')
|
|
def test_1(act_1: Action):
|
|
act_1.expected_stdout = expected_stdout_1
|
|
act_1.execute()
|
|
assert act_1.clean_expected_stdout == act_1.clean_stdout
|
|
|