mirror of
https://github.com/FirebirdSQL/firebird-qa.git
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275 lines
8.5 KiB
Python
275 lines
8.5 KiB
Python
#coding:utf-8
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"""
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ID: issue-6293
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ISSUE: 6293
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TITLE: GTTs do not release used space
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DESCRIPTION:
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=== For FB 3.x ===
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Test obtains full path to $fb_home via FBSVCMGR info_get_env.
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Then it makes copy of file 'databases.conf' that is in $fb_home directory because
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following lines will be added to that 'databases.conf':
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===
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tmp_6043_keep = ...
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{
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ClearGTTAtRetaining = 0
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}
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After this, it does connect to this alias and run statements from ticket with commit/rollback retain.
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We check that:
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* COMMIT RETAIN preserves record that was inserted in the statement before this commit;
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* ROLLBACK RETAIN does NOT delete record that was inserted before COMMIT RETAIN.
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Then we check the same for ClearGTTAtRetaining = 1 (i.e. for default value) - just to ensure that it works.
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Finally, previous databases.conf file is restored in initial state.
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=== For FB 4.x ===
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It is enough just to run ISQL; databases.conf can be left unchanged.
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NOTES:
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[13.12.2019]
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It seems that we have to DISABLE BUFFERING in any IO operation which relates to preparing scripts, configs or logs.
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Otherwise sporadic runtime errors can occur: I/O error during "CreateFile (open)" operation for file "..."
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Explanation:
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https://docs.python.org/2/library/functions.html#open
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https://stackoverflow.com/questions/18984092/python-2-7-write-to-file-instantly/41506739
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Checked on:
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4.0.0.1687 SS: 1.536s.
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4.0.0.1685 CS: 2.026s.
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3.0.5.33207 SS: 1.435s.
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3.0.5.33152 SC: 1.243s.
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3.0.5.33206 CS: 2.626s.
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JIRA: CORE-6043
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FBTEST: bugs.core_6043
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"""
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import pytest
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from firebird.qa import *
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# version: 3.0
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db = db_factory()
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act_1 = python_act('db', substitutions=[('[ \t]+', ' ')])
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expected_stdout_1 = """
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When ClearGTTAtRetaining = 0: ID 3
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When ClearGTTAtRetaining = 0: Records affected: 1
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When ClearGTTAtRetaining = 0: ID 3
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When ClearGTTAtRetaining = 0: Records affected: 1
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When ClearGTTAtRetaining = 1: Records affected: 0
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When ClearGTTAtRetaining = 1: Records affected: 0
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"""
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@pytest.mark.skip('FIXME: databases.conf')
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@pytest.mark.version('>=3.0,<4')
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def test_1(act_1: Action):
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pytest.fail("Not IMPLEMENTED")
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# test_script_1
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#---
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# import os
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# import subprocess
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# import time
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# import shutil
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# from fdb import services
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#
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# os.environ["ISC_USER"] = user_name
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# os.environ["ISC_PASSWORD"] = user_password
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#
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# this_db = db_conn.database_name
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# db_conn.close()
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#
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# svc = services.connect(host='localhost', user= user_name, password= user_password)
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# fb_home = svc.get_home_directory()
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# svc.close()
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#
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# #--------------------------------------------
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#
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# def flush_and_close( file_handle ):
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# # https://docs.python.org/2/library/os.html#os.fsync
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# # If you're starting with a Python file object f,
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# # first do f.flush(), and
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# # then do os.fsync(f.fileno()), to ensure that all internal buffers associated with f are written to disk.
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# global os
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#
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# file_handle.flush()
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# if file_handle.mode not in ('r', 'rb'):
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# # otherwise: "OSError: [Errno 9] Bad file descriptor"!
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# os.fsync(file_handle.fileno())
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# file_handle.close()
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#
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# #--------------------------------------------
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#
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# def cleanup( f_names_list ):
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# global os
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# for i in range(len( f_names_list )):
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# if type(f_names_list[i]) == file:
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# del_name = f_names_list[i].name
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# elif type(f_names_list[i]) == str:
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# del_name = f_names_list[i]
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# else:
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# print('Unrecognized type of element:', f_names_list[i], ' - can not be treated as file.')
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# del_name = None
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#
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# if del_name and os.path.isfile( del_name ):
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# os.remove( del_name )
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#
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# #--------------------------------------------
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#
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#
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# tmp_fdb_keep=os.path.join(context['temp_directory'],'tmp_6043.keep_GTT_data.fdb')
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# tmp_fdb_kill=os.path.join(context['temp_directory'],'tmp_6043.kill_GTT_data.fdb')
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#
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# shutil.copy2( this_db, tmp_fdb_keep )
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# shutil.copy2( this_db, tmp_fdb_kill )
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#
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# dbconf = os.path.join( fb_home, 'databases.conf')
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# dbcbak = os.path.join( fb_home, 'databases.bak')
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#
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# # Resut: fb_home is full path to FB instance home (with trailing slash).
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# shutil.copy2( dbconf, dbcbak )
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#
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# # ----------------------------------------------------------------------
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#
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# isql_script='''
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# set list on;
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#
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# recreate global temporary table gtt (id int) on commit delete rows;
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# commit;
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#
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# set count off;
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# insert into gtt values (3);
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# commit retain;
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#
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# set count on;
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# select * from gtt; -- point 1
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#
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# set count off;
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# insert into gtt values (4);
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# rollback retain;
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#
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# set count on;
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# select * from gtt; -- point 2
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# '''
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#
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# f_isql_cmd=open( os.path.join(context['temp_directory'],'tmp_isql_6043.sql'), 'w')
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# f_isql_cmd.write( isql_script )
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# flush_and_close( f_isql_cmd )
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#
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# # --------------------------------------------------------------------
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#
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# f_dbconf=open( dbconf,'a')
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# f_dbconf.seek(0, 2)
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#
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# alias_data='''
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#
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# # Created temply by fbtest, CORE-6043. Should be removed auto.
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# # WARNING! DO NOT ADD YET ANOTHER ALIAS FOR THE SAME DATABASE!
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# # Attempt to connect to any of these aliases will fail with message:
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# # =======
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# # Statement failed, SQLSTATE = 08004
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# # Server misconfigured - contact administrator please
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# # =======
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# # Server log will contain:
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# # File databases.conf contains bad data: Duplicated configuration for database <file>
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#
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# tmp_6043_keep = %(tmp_fdb_keep)s
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# {
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# # Value of 0 makes engine to not clear GTT data on COMMIT/ROLLBACK RETAINING and let application to see it.
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# # Default value is 1 (clear GTT data on commit/rollback retaining).
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# # Note: in Firebird 4 default value will be changed to 0 and this setting will
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# # be removed at Firebird 5.
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# ClearGTTAtRetaining = 0
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# }
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#
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# tmp_6043_kill = %(tmp_fdb_kill)s
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# {
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# # Check that 1 really works as default value, i.e. clears GTT data on commit/rollback retaining.
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# ClearGTTAtRetaining = 1
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# }
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#
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#
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# ''' % locals()
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#
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# f_dbconf.write(alias_data)
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# flush_and_close( f_dbconf )
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#
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# # 4debug: shutil.copy2( fb_home+'databases.conf', fb_home+'databases.conf.check_it' )
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#
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# # NB: buffering = 0 - we want this file be immediately on disk after closing in order to avoid excessive waiting for it
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# ###################
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# f_isql_keep_log=open( os.path.join(context['temp_directory'],'tmp_6043.keep_GTT_data.log'), 'w')
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# subprocess.call([ context['isql_path'], 'localhost:tmp_6043_keep', "-q", "-i", f_isql_cmd.name], stdout=f_isql_keep_log, stderr=subprocess.STDOUT)
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# flush_and_close( f_isql_keep_log )
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#
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# with open( f_isql_keep_log.name,'r') as f:
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# for line in f:
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# if line.split():
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# print( 'When ClearGTTAtRetaining = 0: ' + line )
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#
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# ####################################################################
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#
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# # NB: buffering = 0 - we want this file be immediately on disk after closing in order to avoid excessive waiting for it
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# f_isql_kill_log=open( os.path.join(context['temp_directory'],'tmp_6043.kill_GTT_data.log'), 'w')
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# subprocess.call([context['isql_path'], 'localhost:tmp_6043_kill', "-q", "-i", f_isql_cmd.name], stdout=f_isql_kill_log, stderr=subprocess.STDOUT)
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# flush_and_close( f_isql_kill_log )
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#
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# with open( f_isql_kill_log.name,'r') as f:
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# for line in f:
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# if line.split():
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# print( 'When ClearGTTAtRetaining = 1: ' + line )
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#
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# ####################################################################
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#
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# # Restore previous content:
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# shutil.move( dbcbak, dbconf )
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#
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# #####################################################################
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# # Cleanup:
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# time.sleep(1)
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# cleanup( ( f_isql_keep_log, f_isql_kill_log, f_isql_cmd, tmp_fdb_keep, tmp_fdb_kill ) )
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#
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#
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#---
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# version: 4.0
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test_script_2 = """
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set list on;
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recreate global temporary table gtt (id int) on commit delete rows;
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commit;
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set count off;
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insert into gtt values (4);
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commit retain;
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set count on;
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select * from gtt; -- point 1
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set count off;
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insert into gtt values (5);
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rollback retain;
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set count on;
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select * from gtt; -- point 2
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"""
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act_2 = isql_act('db', test_script_2, substitutions=[('[ \t]+', ' ')])
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expected_stdout_2 = """
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ID 4
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Records affected: 1
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ID 4
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Records affected: 1
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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()
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assert act_2.clean_stdout == act_2.clean_expected_stdout
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