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firebird-qa/tests/bugs/core_6403_test.py

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#coding:utf-8
#
# id: bugs.core_6403
# title: Some PSQL statements may lead to exceptions report wrong line/column
# decription:
# We make list of strings, each of them is a multi-line statement starting with 'EXECUTE BLOCK ...'.
# Inside every EB one of following loops is checked:
# * while (<expr>) do ...
# * for select <expr> into ...
# -- where <expr> uses several arguments (because of loop) and eventually fails with zero division.
# In the BEGIN ... END block we have several lines of code which operates with arguments (see ticket examples).
# When <expr> fails then we catch error stack and parse it by searching line '- At block line: N, col: C'.
# These values (N and C) are compared later with those which are expected.
#
# In order to proper evaluate expected values of (N,C) we split source expression onto separate lines and numerate them.
# Also, within each line we search special marker: "/*!*/" (without qoutes).
# If line contains this marker then we find its position and subtract 5 from it (this is length of "while" word).
# NB: this requer that betwee "for" and "/*!*/" we must put two space characters (see below).
#
# Finally, we compare values in two dictionaries:
# source_expr_positions_map - K = sequential number of exprerssion in the "main list"; V = line/col of token that causes problem;
# actual_stack_positions_map - K = the same as in source_expr_positions_map; V = line/col values that were parsed from error stack.
# All pairs for apropriate expressions must be equal.
#
# If some difference will be found then we show this error stack, expected line/col coordinates and actual ones, as in this example:
# ==================
# 3 UNEXPECTED MISMATCH between expected and actual values of line/col:
# * expected (position of problematic token): 6, 5
# * actual (result of error message parsing): 10, 9
# * source message of error:
# Error while executing SQL statement:
# - SQLCODE: -802
# - arithmetic exception, numeric overflow, or string truncation
# - Integer divide by zero. The code attempted to divide an integer value by an integer divisor of zero.
# - At block line: 10, col: 9
# Expression:
# ....:....1....:....2....:....3....:....4....:....5....:....6....:....7....:....8
# : 12345678901234567890123456789012345678901234567890123456789012345678901234567890
# 1 : execute block
# 2 : as
# 3 : declare n int = 5;
# 4 : declare c int;
# 5 : begin
# 6 : for /*!*/ select 100/:n from rdb$types into c
# 7 : -- ^^ NB: two spaces here.
# 8 : do begin
# 9 : insert into test(x) values(sqrt(:n));
# 10 : n = n - 1;
# 11 : end
# 12 : end
# ==================
#
# Confirmed bug on 4.0.0.2195.
# Checked 4.0.0.2204: all fine.
#
# tracker_id: CORE-6403
# min_versions: ['4.0']
# versions: 4.0
# qmid: None
import pytest
from firebird.qa import db_factory, isql_act, Action
# version: 4.0
# resources: None
substitutions_1 = []
init_script_1 = """"""
db_1 = db_factory(sql_dialect=3, init=init_script_1)
# test_script_1
#---
# from __future__ import print_function
#
# import os
# import sys
# import re
# import string
#
# #import fdb
# #FB_CLNT=sys.argv[1]
# #con=fdb.connect(dsn='localhost:e40', fb_library_name = FB_CLNT)
# #print(con.firebird_version)
#
# DEBUG_FLAG=0
#
# db_conn.execute_immediate('recreate table test(x int)')
# db_conn.commit()
#
# sttm_list = [
# '''execute block
# as
# declare n integer = 0;
# begin
# while/*!*/ (1 / n > 0)
# do
# begin
# n = n - 1;
# end
# end'''
# ,
# '''execute
# block as declare n integer = 1; begin
# while/*!*/
# (
# 1 / n > 0
# )
# do
# begin
# n
# = n - 1;
# end
# end'''
# ,
# '''execute block
# as
# begin
# while/*!*/ ( (select coalesce(t.x,0) from rdb$database r left join test t on 1=1) <= 1 )
# do
# begin
# insert into test(x) values(1);
# insert into test(x) values(2);
# insert into test(x) values(3);
# end
# end'''
# ,
# '''execute block
# as
# declare n int = 5;
# declare c int;
# begin
# for /*!*/ select 100/:n from rdb$types into c
# -- ^^ NB: two spaces here.
# do begin
# insert into test(x) values(sqrt(:n));
# n = n - 1;
# end
# end'''
# ,
# '''execute block
# as
# declare n int = 5;
# declare c int;
# begin
# delete from test;
# while ( n >= 0 ) do
# begin
# for /*!*/ execute statement (
# 'select 100 / cast(? as int)
# from rdb$database
# '
# ) ( n ) into c
# -- ^^ NB: two spaces here.
# do begin
# -- insert into test(x) values(sqrt(:n));
# insert into test(x) values( :n );
# end
# n = n - 1;
# end
# end'''
# ]
#
# sttm_map = {}
# source_expr_positions_map = {}
# for i,s in enumerate(sttm_list):
# sttm_lines = s.splitlines()
# for j, line in enumerate(sttm_lines):
# problematic_expr_position = line.find('/*!*/')-5
# sttm_map[ i, j+1 ] = ( line, 1 + problematic_expr_position )
# if problematic_expr_position>=0:
# source_expr_positions_map[ i ] = (j+1, 1 + problematic_expr_position )
#
# if DEBUG_FLAG:
# for k,v in sorted(sttm_map.items()):
# print(k,':::',v)
#
# for k,v in sorted(source_expr_positions_map.items()):
# print(k,':::',v)
#
#
# # - At block line: 3, col: 1
# p=re.compile( '(- )?At\\s+block\\s+line(:)?\\s+\\d+(,)?\\s+col(:)?\\s+\\d+', re.IGNORECASE)
#
# allchars=string.maketrans('','')
# nodigits=allchars.translate(allchars, string.digits + string.whitespace)
#
# actual_stack_positions_map = {}
#
# for i,s in enumerate(sttm_list):
# if DEBUG_FLAG:
# print('execute ',i)
# try:
# db_conn.execute_immediate(s)
# except Exception as e:
# if DEBUG_FLAG:
# print(e[0])
# for msg in e[0].splitlines():
# if DEBUG_FLAG:
# print('msg:',msg)
# if p.match(msg):
# if DEBUG_FLAG:
# print(p)
# print( msg.translate(allchars, nodigits) )
# # '- At block line: 3, col: 1' ==> ' 3 1'
# line_col_pair = msg.translate(allchars, nodigits).split()
# actual_stack_positions_map[ i ] = ( int(line_col_pair[0]), int(line_col_pair[1]), e[0] )
#
# if DEBUG_FLAG:
# for k,v in sorted(actual_stack_positions_map.items()):
# print(k,'###',v)
#
# for k,v in sorted(source_expr_positions_map.items()):
# w = actual_stack_positions_map.get(k)
# if w and v[:2] == w[:2]:
# print('Test %d PASSED' % k) # expected line/col in source code matches error stack pair.
# else:
# print(k, 'UNEXPECTED MISMATCH between expected and actual values of line/col:')
# print(' * expected (position of problematic token): %d, %d' % (v[0], v[1]) )
# if w:
# print(' * actual (result of error message parsing): %d, %d' % (w[0], w[1]) )
# print(' * source message of error:')
# for i in w[2].splitlines():
# print( ' ' * 8, i )
# else:
# print(' * actual: NONE')
#
# print('Expression:')
# for i,s in enumerate( sttm_list[k].splitlines() ):
# if i == 0:
# print( '%s %s' % (" " * 6, ''.join( [ '....:....' + str(j) for j in range(1,9)] ) ) )
# print( '%s : %s' % ( " " * 4, "1234567890" * 8) )
# print( '%s : %s' % ( "{:4g}".format(i+1), s) )
#
#
#---
#act_1 = python_act('db_1', test_script_1, substitutions=substitutions_1)
expected_stdout_1 = """
Test 0 PASSED
Test 1 PASSED
Test 2 PASSED
Test 3 PASSED
Test 4 PASSED
"""
@pytest.mark.version('>=4.0')
@pytest.mark.xfail
def test_1(db_1):
pytest.fail("Test not IMPLEMENTED")
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