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firebird-qa/tests/bugs/core_6246_test.py

68 lines
2.8 KiB
Python

#coding:utf-8
"""
ID: issue-6490
ISSUE: 6490
TITLE: Problem with too many number of columns in resultset
DESCRIPTION:
We create .sql with 32767 columns and run it with requirement to display SQLDA.
All lines in produced output with 'charset: ' substring must contain only one value:
* '3' for FB 3.x; '4' for FB 4.x.
If some charset ID differs from expected, we raise error and terminate check furter lines.
Confirmed bug on 3.0.6.33272: first 32108 fields are shown in SQLDA with 'charset: 0 NONE'.
String 'charset: 3 UNICODE_FSS' appeared only since 32109-th column and up to the end.
JIRA: CORE-6246
FBTEST: bugs.core_6246
"""
import pytest
from firebird.qa import *
db = db_factory()
act = python_act('db')
MAX_FOR_PASS = 32767
test_script = f"""
set sqlda_display on;
set planonly;
select
{','.join(['x1.rdb$field_name' for i in range(MAX_FOR_PASS)])}
from rdb$fields as x1 rows 1;
"""
@pytest.mark.version('>=3.0.6')
def test_1(act: Action):
act.isql(switches=['-q'], input=test_script)
# 1. For FB 3.x: only "charset: 3" must present in any string that describes column:
# NN: sqltype: 452 TEXT Nullable scale: 0 subtype: 0 len: 93 charset: 3 UNICODE_FSS
# ^
# 0 1 2 3 4 5 6 7 8 9 10 11 12 13
# 2. For FB 4.x: only "charset: 4" must present in any string that describes column:
# NN: sqltype: 452 TEXT Nullable scale: 0 subtype: 0 len: 252 charset: 4 UTF8
# ^
# 0 1 2 3 4 5 6 7 8 9 10 11 12 13
# ^
# we must check this token
# where 'NN:' is '01:', '02:', '03:', ... '32767:'
expected_charset_id = '3' if act.is_version('<4') else '4'
charset_id_position = -1
i = 0
for line in act.stdout.splitlines():
i += 1
if 'sqltype:' in line:
elements = line.split()
if charset_id_position < 0:
charset_id_position = [(n, w) for n, w in enumerate(elements) if w.lower() == 'charset:'][0][0] + 1
# charset_id = elements[-2]
charset_id = elements[charset_id_position]
if charset_id != expected_charset_id:
print(f'At least one UNEXPECTED charset in SQLDA at position: {charset_id_position}. Line No: {i}, charset_id: {charset_id}')
print(line)
pytest.fail("UNEXPECTED charset in SQLDA")
if charset_id_position < 0:
# ISQL log is empty or not contains 'sqltype:' in any line.
pytest.fail('No lines with expected pattern found.')