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73 lines
2.8 KiB
Python
73 lines
2.8 KiB
Python
#coding:utf-8
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#
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# id: bugs.core_6238
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# title: DECFLOAT: subtraction Num1 - Num2 leads to "Decimal float overflow" if Num2 is specified in scientific notation and less than max double ( 1.7976931348623157e308 )
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# decription:
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# Checked on 4.0.0.1753: works fine.
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#
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# tracker_id: CORE-6238
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# min_versions: ['4.0']
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# versions: 4.0
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# qmid: None
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 4.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """"""
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db_1 = db_factory(sql_dialect=3, init=init_script_1)
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test_script_1 = """
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-- All following statements raised before fix:
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-- Statement failed, SQLSTATE = 22003
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-- Decimal float overflow. The exponent of a result is greater than the magnitude allowed.
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set list on;
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select (d - 1e0) as result_01 from (select 9.999999999999999999999999999999998E+6144 d from rdb$database);
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select (d - 1.79769313e308) as result_02 from (select 9.999999999999999999999999999999998E+6144 d from rdb$database);
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select (d - cast( 1e0 as float) ) as result_03 from (select 9.999999999999999999999999999999998E+6144 d from rdb$database);
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select (d + 1.79769313e-308 ) as result_04 from (select 9.999999999999999999999999999999998E+6144 d from rdb$database);
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-- This EB was added only to check that no error will be while executing statements in it.
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-- See letter to Alex, 31.01.2020 11:34, and his postfix for this ticket:
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-- https://github.com/FirebirdSQL/firebird/commit/0ef5a1a1c1bf42021b378e1691aaccfd75a454b4
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set term ^;
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execute block as
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declare dt date;
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declare tm time;
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declare ts timestamp;
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begin
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select current_date + cast(1 as numeric(19,0)) from rdb$database into dt;
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select current_date + cast(1 as decfloat) from rdb$database into dt;
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select current_time + cast(1 as numeric(19,0)) from rdb$database into tm;
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select current_time + cast(1 as decfloat) from rdb$database into tm;
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select current_timestamp + cast(1 as decfloat) from rdb$database into ts;
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select current_timestamp + cast(1 as decfloat) from rdb$database into ts;
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end
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^
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set term ;^
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """
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RESULT_01 9.999999999999999999999999999999998E+6144
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RESULT_02 9.999999999999999999999999999999998E+6144
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RESULT_03 9.999999999999999999999999999999998E+6144
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RESULT_04 9.999999999999999999999999999999998E+6144
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"""
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@pytest.mark.version('>=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.execute()
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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