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106 lines
4.0 KiB
Python
106 lines
4.0 KiB
Python
#coding:utf-8
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"""
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ID: issue-441
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ISSUE: https://github.com/FirebirdSQL/firebird/issues/441
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TITLE: Numeric div in dialect 3 mangles data
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DESCRIPTION:
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NOTES:
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Results for FB 4.0 become differ from old one. Discussed with Alex, 30.10.2019.
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Precise value of 70000 / 1.95583 is: 35790.431683735296 (checked on https://www.wolframalpha.com )
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Section 'expected-stdout' was adjusted to be match for results that are issued in recent FB.
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JIRA: CORE-119
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FBTEST: bugs.core_0119
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NOTES:
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Discussed with Alex see in e-mail, letters 30.10.2019.
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[21.06.2020] pzotov
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4.0.0.2068 (see also: CORE-6337):
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changed subtype from 0 to 1 for cast (-70000 as numeric (18,5)) / cast (1.95583 as numeric (18,5))
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(after discuss with dimitr, letter 21.06.2020 08:43).
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[25.06.2020] pzotov
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4.0.0.2076: changed types in SQLDA from numeric to int128 // after discuss with Alex about CORE-6342.
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[27.07.2021] pzotov
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adjusted expected* sections to results in current snapshots FB 4.x and 5.x: this is needed since fix #6874
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("Literal 65536 (interpreted as int) can not be multiplied by itself w/o cast if result more than 2^63-1") because
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division -4611686018427387904/-0.5 does not issue error since this fix.
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Checked on 5.0.0.113, 4.0.1.2539.
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[10.12.2023] pzotov
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Added 'SQLSTATE' in substitutions: runtime error must not be filtered out by '?!(...)' pattern
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("negative lookahead assertion", see https://docs.python.org/3/library/re.html#regular-expression-syntax).
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Added 'combine_output = True' in order to see SQLSTATE if any error occurs.
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"""
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import pytest
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from firebird.qa import *
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db = db_factory()
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# version: 3.0
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substitutions_1 = [('[ \t]+', ' ')]
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test_script_1 = """
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-- Stdout and stderr are OK in WI-V1.5.6.5026 and all above.
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-- Number of digits in mantiss is the same both on WI- and LI-.
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set list on;
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select cast (-70000 as numeric (18,5)) / cast (1.95583 as numeric (18,5)) as result from rdb$database;
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select (-4611686018427387904)/-0.5 from rdb$database;
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"""
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act_1 = isql_act('db', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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RESULT -35790.4316837350
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"""
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expected_stderr_1 = """
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Statement failed, SQLSTATE = 22003
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arithmetic exception, numeric overflow, or string truncation
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-numeric value is out of range
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"""
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@pytest.mark.version('>=3,<4.0')
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def test_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.expected_stderr = expected_stderr_1
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act_1.execute()
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assert (act_1.clean_stderr == act_1.clean_expected_stderr and
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act_1.clean_stdout == act_1.clean_expected_stdout)
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# version: 4.0
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substitutions_2 = [('^((?!(SQLSTATE|sqltype|DIV_RESULT)).)*$', ''), ('[ \t]+', ' '), ('.*alias.*', '')]
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test_script_2 = """
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set bail on;
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set list on;
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set sqlda_display on;
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select cast (-70000 as numeric (18,5)) / cast (1.95583 as numeric (18,5)) as div_result_1 from rdb$database;
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-- doc\\sql.extensions\\README.data_types:
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-- - QUANTIZE - has two DECFLOAT arguments. The returned value is first argument scaled using
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-- second value as a pattern. For example QUANTIZE(1234, 9.999) returns 1234.000.
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select QUANTIZE(cast(-70000 as decfloat(34)) / cast (1.95583 as decfloat(34)), 9.9999999999) as div_result_2 from rdb$database;
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select (-4611686018427387904)/-0.5 div_result_3 from rdb$database;
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"""
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act_2 = isql_act('db', test_script_2, substitutions=substitutions_2)
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expected_stdout_2 = """
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01: sqltype: 32752 INT128 scale: -10 subtype: 1 len: 16
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DIV_RESULT_1 -35790.4316837352
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01: sqltype: 32762 DECFLOAT(34) scale: 0 subtype: 0 len: 16
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DIV_RESULT_2 -35790.4316837353
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01: sqltype: 32752 INT128 scale: -1 subtype: 0 len: 16
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DIV_RESULT_3 9223372036854775808.0
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"""
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@pytest.mark.version('>=4.0')
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def test_2(act_2: Action):
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act_2.expected_stdout = expected_stdout_2
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act_2.execute(combine_output = True)
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assert act_2.clean_stdout == act_2.clean_expected_stdout
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