Added/Updated tests\bugs\core_3692_test.py: fixed wrong section in the head of test

tests/bugs/core_3692_test.py

@@ -7,89 +7,40 @@ TITLE:       Cannot drop a NOT NULL constraint on a field participating in the U
 DESCRIPTION:
 JIRA:        CORE-3692
 FBTEST:      bugs.core_3692
+NOTES:
+    [05.10.2023] pzotov
+    Removed SHOW command for check result because its output often changes.
 """
 
 import pytest
 from firebird.qa import *
 
 init_script = """
-    recreate table cset (cname varchar(250) character set none not null);
+    recreate table test (s varchar(250) character set none not null);
     commit;
-    alter table cset add constraint uq_cset unique (cname);
+    alter table test add constraint test_unq unique (s);
     commit;
 """
 
 db = db_factory(init=init_script)
 
 test_script = """
-show table cset;
+    set bail on;
-
+    set list on;
-    set term ^;
+    alter table test alter column s drop not null;
-    execute block as
-      declare v_stt varchar(70);
-    begin
-        for
-            with
-            inp as(select 'cset' nm from rdb$database)
-            ,pk_defs as( -- obtain PK constraint and get fields that assembles it
-              select
-                rc.rdb$relation_name rel_name
-                ,rc.rdb$constraint_name pk_name
-                ,rc.rdb$index_name pk_idx
-                ,rs.rdb$field_name fld_name
-                ,rs.rdb$field_position fld_pos
-              from rdb$relation_constraints rc
-              join rdb$index_segments rs on rc.rdb$index_name=rs.rdb$index_name
-              join inp i on rc.rdb$relation_name containing i.nm
-              where rc.rdb$constraint_type containing 'PRIMARY'
-            )
-            -- select * from pk_defs
-            ,chk_list as(
-              select
-                rc.rdb$relation_name rel_name
-                ,rc.rdb$constraint_name sub_name
-                ,rc.rdb$constraint_type sub_type
-                ,'alter table '||trim(rc.rdb$relation_name)||' drop constraint '||trim(rc.rdb$constraint_name)||'; -- '||trim(rc.rdb$constraint_type) stt
-                ,ck.rdb$trigger_name
-                ,p.pk_name -- not null ==> field is included in PK, skip it
-                ,decode(rc.rdb$constraint_type, 'UNIQUE', 99, 0) sort_weitgh
-              from rdb$relation_constraints rc
-              join inp i on rc.rdb$relation_name containing i.nm
-              left join rdb$check_constraints ck on rc.rdb$constraint_name=ck.rdb$constraint_name
-              left join pk_defs p on rc.rdb$relation_name=p.rel_name and ck.rdb$trigger_name=p.fld_name
-              where
-                rc.rdb$relation_name not like 'RDB$%'
-                and rc.rdb$relation_name not like 'MON$%'
-                and rc.rdb$relation_name not like 'IBE$%'
-                and rc.rdb$constraint_type not containing 'PRIMARY'
-                and p.pk_name is null -- ==> this field is NOT included in PK constraint
-                order by rc.rdb$relation_name, decode(rc.rdb$constraint_type, 'UNIQUE', 99, 0)
-            )
-            select cast(stt as varchar(70)) stt from chk_list
-            into v_stt
-        do begin
-            execute statement (v_stt);
-        end
-
-    end
-    ^ set term ;^
     commit;
-
+    insert into test(s) values(null);
-    show table cset;
+    select s from test;
 """
 
-act = isql_act('db', test_script)
+act = isql_act('db', test_script, substitutions = [ ('[ \t]+', ''), ] )
 
 expected_stdout = """
-CNAME                           VARCHAR(250) Not Null
+    S <null>
-CONSTRAINT UQ_CSET:
-  Unique key (CNAME)
-CNAME                           VARCHAR(250) Nullable
 """
 
 @pytest.mark.version('>=3')
 def test_1(act: Action):
     act.expected_stdout = expected_stdout
-    act.execute()
+    act.execute(combine_output = True)
     assert act.clean_stdout == act.clean_expected_stdout
-