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104 lines
2.6 KiB
Python
104 lines
2.6 KiB
Python
#coding:utf-8
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"""
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ID: issue-2535
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ISSUE: 2535
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TITLE: Bugcheck 249 when attempting to fetch outside the end-of-stream mark for the open PSQL cursor
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DESCRIPTION:
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NOTES:
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[29.11.2021]
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Separated code for FB 4.x+ was added because of changes related to cursors introduced 26-nov-2021.
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Commit: "Fixed missing BOF flag, better boundary checks, code unification":
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https://github.com/FirebirdSQL/firebird/commit/067c8040b2c810e76e99593e792a829b25fc8d5e
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https://github.com/FirebirdSQL/firebird/commit/9397ebb13d65d114a053cc9ce88f3dac5d17e7eb
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After this commits FETCH beyond the last record became "quiet", i.e. does not raise error.
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This new behaviour led test to fall in infinite loop which made FB seems hanging.
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New code suggested by dimitr, letter 28.11.2021 17:48.
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Checked on 5.0.0.321, 4.0.1.2672
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JIRA: CORE-2101
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FBTEST: bugs.core_2101
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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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test_script_1 = """
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create table t1 ( f1 smallint );
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set term ^ ;
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create procedure p1
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as
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declare v1 smallint;
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declare c1 cursor for ( select f1 from t1 );
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begin
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open c1;
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while (1=1) do
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begin
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fetch c1 into :v1;
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if(row_count = 1) then leave;
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end
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close c1;
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end ^
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set term ; ^
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commit;
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execute procedure p1;
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"""
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act_1 = isql_act('db', test_script_1,
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substitutions=[('SQLSTATE.*', 'SQLSTATE'), ('line: \\d+,', 'line: x'),
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('col: \\d+', 'col: y')])
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expected_stderr_1 = """
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Statement failed, SQLSTATE = HY109
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attempt to fetch past the last record in a record stream
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-At procedure 'P1' line: 19, col: 18
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"""
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@pytest.mark.version('>=3.0,<4.0.1')
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def test_1(act_1: Action):
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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
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# version: 4.0
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test_script_2 = """
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-- since 29.11.2021.
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create table t1 ( f1 smallint );
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insert into t1 values (1);
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insert into t1 values (2);
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insert into t1 values (3);
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commit;
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set term ^ ;
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create procedure p1
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as
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declare v1 smallint;
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declare c1 cursor for ( select f1 from t1 );
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begin
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open c1;
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while (1=1) do
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begin
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fetch c1 into :v1;
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if (row_count = 0) then leave;
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end
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fetch c1 into :v1;
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close c1;
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end ^
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set term ; ^
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commit;
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execute procedure p1;
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"""
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act_2 = isql_act('db', test_script_2)
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@pytest.mark.version('>=4.0.1')
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def test_2(act_2: Action):
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act_2.execute()
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assert act_2.clean_stdout == act_2.clean_expected_stdout
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