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47 lines
1.0 KiB
Python
47 lines
1.0 KiB
Python
#coding:utf-8
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"""
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ID: issue-4040
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ISSUE: 4040
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TITLE: Cannot drop a NOT NULL constraint on a field participating in the UNIQUE constraint
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DESCRIPTION:
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JIRA: CORE-3692
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FBTEST: bugs.core_3692
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NOTES:
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[05.10.2023] pzotov
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Removed SHOW command for check result because its output often changes.
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"""
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import pytest
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from firebird.qa import *
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init_script = """
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recreate table test (s varchar(250) character set none not null);
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commit;
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alter table test add constraint test_unq unique (s);
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commit;
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"""
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db = db_factory(init=init_script)
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test_script = """
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set bail on;
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set list on;
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alter table test alter column s drop not null;
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commit;
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insert into test(s) values(null);
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select s from test;
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"""
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act = isql_act('db', test_script, substitutions = [ ('[ \t]+', ''), ] )
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expected_stdout = """
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S <null>
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"""
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@pytest.mark.version('>=3')
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def test_1(act: Action):
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act.expected_stdout = expected_stdout
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act.execute(combine_output = True)
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assert act.clean_stdout == act.clean_expected_stdout
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